A favicon of MailerLite

Companies Using MailerLite

Companies using MailerLite span dozens of industries and 200+ countries, from Yale and the University of Michigan to small coaching practices and freelance bloggers. Our crawl tracks 122,973 active domains using MailerLite, with 80,110 companies enriched with firmographic data on TechnologyChecker.io.

MailerLite holds a 4.96% share of the Email Marketing market, ranking #8. Below you'll find the full breakdown by country, industry, company size, and technology stack.

Published Feb 22, 2026 · Updated Aug 15, 2026 · Data analysed on August 15, 2026.

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MailerLite Usage Statistics

MailerLite has grown from a single detected domain in mid-2011 to a peak of 98,401 active domains in April 2025, easing to 88,514 by July 2025, the last clean month in our long-run detection history. From 2020 onward the platform went from 5,644 to nearly 100,000 active domains in five years, a 17x climb that outpaces most competitors in this category. We now detect MailerLite on 122,973 active domains. Counts either side of the 2025-to-2026 gap are not like-for-like, because the set of domains we crawl turns over every month, with dead sites dropping out and newly discovered ones added, and our detection signals widen over time, so read the step there as coverage rather than growth.

List of Companies Using MailerLite

Our verified list of companies using MailerLite on TechnologyChecker.io covers brands that use MailerLite across every industry, size, and geography, with an unusually heavy showing from higher education: Yale, the University of Michigan, Arizona State, and the University of Melbourne all appear. Many of the websites using MailerLite in this database are enriched with LinkedIn data covering industry classification, employee count, founding year, and headquarters location.

Download all 122,973 MailerLite customers with full company data, or create a signal to track when companies start or stop using MailerLite.

Verified list of companies and websites using MailerLite — sorted by company size. Data from TechnologyChecker's full-sweep crawl of 29.6M domains.
CompanyDetection URLDomainCountryIndustryEmployeesTypeFoundedLinkedIn
University of Michigan logoUniversity of Michigan
umich.eduumich.eduUnited StatesHigher Education10001+Educational1817https://linkedin.com/company/university-of-michigan
UW group logoUW group
uw.eduuw.eduUnited StatesHigher Education10001+Educationalhttps://linkedin.com/company/university-of-washington
Arizona State University logoArizona State University
asu.eduasu.eduUnited StatesHigher Education10001+Educational1885https://linkedin.com/company/arizona-state-university
Sapient logoSapient
publicissapient.compublicissapient.comUnited StatesBusiness Consulting and Services10001-10001Public Companyhttps://linkedin.com/company/publicissapient
The University of Melbourne logoThe University of Melbourne
unimelb.edu.auunimelb.edu.auAustraliaHigher Education5001-10000Nonprofit1853https://linkedin.com/company/university-of-melbourne
Pitt logoPitt
pitt.edupitt.eduUnited StatesHigher Education10001+Educationalhttps://linkedin.com/company/university-of-pittsburgh
School of Visual Arts, Inc. logoSchool of Visual Arts, Inc.
sva.edusva.eduUnited StatesHigher Education1001-5000Educational1947https://linkedin.com/company/svanyc
Yale logoYale
yale.eduyale.eduUnited StatesHigher Education10001+Educationalhttps://linkedin.com/company/yale-university
University of Cincinnati logoUniversity of Cincinnati
uc.eduuc.eduUnited StatesHigher Education5001-10000Educational1819https://linkedin.com/company/university-of-cincinnati
Unal logoUnal
unal.edu.counal.edu.coColombiaHigher Education5001-10000Educational1867https://linkedin.com/company/universidadnacionaldecolombia
Show 40 more MailerLite using companies as demo data
CompanyDetection URLCountryIndustryEmployeesTypeFounded
Educational Support Services Group logoEducational Support Services Group
ess.comess.comUnited StatesEducation Administration Programs10001+Partnership2000https://linkedin.com/company/ess-education
Spie SA logoSpie SA
spie.comspie.comFranceEnvironmental Services10001+Public Company1900https://linkedin.com/company/spie_2
Oklahoma State University logoOklahoma State University
okstate.eduokstate.eduUnited StatesHigher Education1001-5000Educational1890https://linkedin.com/company/oklahoma-state-university
Techint Group logoTechint Group
techint.comtechint.comArgentinaConstruction10001+Privately Held1945https://linkedin.com/company/techintec
York University International logoYork University International
yorku.cayorku.caCanadaHigher Education5001-10000Educational1959https://linkedin.com/company/york-university
Helsinki Innovation Services Ltd logoHelsinki Innovation Services Ltd
helsinki.fihelsinki.fiFinlandHigher Education5001-10000Educationalhttps://linkedin.com/company/university-of-helsinki
International Game Technology PLC logoInternational Game Technology PLC
igt.comigt.comUnited StatesSoftware Development10001+Privately Held1974https://linkedin.com/company/igt
Udea logoUdea
udea.edu.coudea.edu.coColombiaHigher Education1001-5000Educational1803https://linkedin.com/company/udea-
University of California, Davis logoUniversity of California, Davis
ucdavis.eduucdavis.eduUnited StatesHospitals and Health Care10001+Educational1968https://linkedin.com/company/ucdavishealth
University of Manitoba logoUniversity of Manitoba
umanitoba.caumanitoba.caCanadaHigher Education5001-10000Educational1877https://linkedin.com/company/umanitoba
DFI Retail Group logoDFI Retail Group
dfiretailgroup.comdfiretailgroup.comChinaRetail10001-10001Public Company1886https://linkedin.com/company/dfi-retail-group
Kenya Airways Limited logoKenya Airways Limited
kenya-airways.comkenya-airways.comKenyaAirlines and Aviation1001-5000Public Company1977https://linkedin.com/company/kenya-airways
Mercy Corp logoMercy Corp
mercycorps.orgmercycorps.orgUnited StatesNon-profit Organizations1001-5000Nonprofit1979https://linkedin.com/company/mercy-corps
Howard University College of Medicine logoHoward University College of Medicine
howard.eduhoward.eduUnited StatesHigher Education5001-10000Educational1867https://linkedin.com/company/howard-university
scouting.org logoscouting.org
scouting.orgscouting.orgUnited StatesCivic and Social Organizations1001-5000Nonprofit1910https://linkedin.com/company/scouting-america
By Deluxe logoBy Deluxe
bydeluxe.combydeluxe.comUnited StatesEntertainment Providers1001-5000Privately Held1915https://linkedin.com/company/deluxe1915
Nova Talent AB logoNova Talent AB
novatalent.comnovatalent.comSpainTechnology, Information and Internet11-50Privately Held2020https://linkedin.com/company/nova
Universiti Putra Malaysia logoUniversiti Putra Malaysia
upm.edu.myupm.edu.myMalaysiaHigher Education1001-5000Educational1931https://linkedin.com/company/universiti-putra-malaysia
Agronomiaudec logoAgronomiaudec
udec.cludec.clChileHigher Education5001-10000Educational1919https://linkedin.com/company/universidad-de-concepcion
Utah Valley University logoUtah Valley University
uvu.eduuvu.eduUnited StatesHigher Education1001-5000Educational1941https://linkedin.com/company/utah-valley-university
Portland Public Schools logoPortland Public Schools
pps.netpps.netUnited StatesPrimary and Secondary Education5001-10000Educational1851https://linkedin.com/company/portland-public-schools
TeacherGoals, LLC logoTeacherGoals, LLC
teachergoals.comteachergoals.comUnited StatesPrimary and Secondary Education1-10Educational2014https://linkedin.com/company/teachergoals
Easterseals NH logoEasterseals NH
easterseals.comeasterseals.comUnited StatesIndividual and Family Services501-1000Nonprofit1919https://linkedin.com/company/easterseals
TNO logoTNO
tno.nltno.nlNetherlandsResearch Services1001-5000Nonprofit1932https://linkedin.com/company/tno
Madrid logoMadrid
madrid.esmadrid.esSpainGovernment Administration10001-10001Government Agencyhttps://linkedin.com/company/ayuntamiento-de-madrid-espa%c3%b1a
ETSU Research Corporation logoETSU Research Corporation
etsu.eduetsu.eduUnited StatesHigher Education1001-5000Educational1911https://linkedin.com/company/east-tennessee-state-university
Genworth logoGenworth
genworth.comgenworth.comUnited StatesInsurance1001-5000Public Company2004https://linkedin.com/company/genworth-financial_2
Emucru logoEmucru
cru.orgcru.orgUnited StatesReligious Institutions5001-10000Nonprofit1951https://linkedin.com/company/cru-global
Team Computers Pvt. Ltd. logoTeam Computers Pvt. Ltd.
teamcomputers.comteamcomputers.comIndiaIT Services and IT Consulting1001-5000Privately Held1987https://linkedin.com/company/team-computers
AUT’s international logoAUT’s international
aut.ac.nzaut.ac.nzNew ZealandHigher Education1001-5000Educational1895https://linkedin.com/company/autuni
Albemarle Corporation logoAlbemarle Corporation
albemarle.comalbemarle.comUnited StatesChemical Manufacturing5001-10000Public Companyhttps://linkedin.com/company/albemarlecorp
Cleveland State University logoCleveland State University
csuohio.educsuohio.eduUnited StatesHigher Education51-200Educational1964https://linkedin.com/company/cleveland-state-university-college-of-law
Denver, CO logoDenver, CO
msudenver.edumsudenver.eduUnited StatesHigher Education1001-5000Educational1965https://linkedin.com/company/metropolitan-state-university-of-denver
The Corcoran Group logoThe Corcoran Group
corcoran.comcorcoran.comUnited StatesReal Estate1001-5000Public Company1973https://linkedin.com/company/the-corcoran-group
Stad Gent logoStad Gent
stad.gentstad.gentBelgiumGovernment Administration1001-5000Government Agencyhttps://linkedin.com/company/stad-gent
MasTec, Inc. logoMasTec, Inc.
www.mastec.commastec.comUnited StatesConstruction10001+Public Company1929https://linkedin.com/company/mas-tec
IHS Towers Group logoIHS Towers Group
ihstowers.comihstowers.comUnited KingdomTelecommunications1001-5000Public Company2001https://linkedin.com/company/ihstowers
Vinted group. logoVinted group.
vinted.comvinted.comLithuaniaSoftware Development1001-5000Privately Held2008https://linkedin.com/company/vinted
Engoo logoEngoo
engoo.comengoo.comSouth KoreaE-Learning Providers10001+Educational2013https://linkedin.com/company/engoo
Northumberland Fire Group logoNorthumberland Fire Group
northumberland.gov.uknorthumberland.gov.ukUnited KingdomGovernment Administration10001+Government Agency2009https://linkedin.com/company/northumberland-county-council

There are 122,973 companies and websites using MailerLite, sign up to download the entire MailerLite dataset.

Here are some of the most recognizable companies using MailerLite and brands using MailerLite that our crawler currently detects:

  • Yale University - Ivy League institution using MailerLite for departmental communications
  • University of Michigan - major US research university running MailerLite for academic outreach
  • Arizona State University - one of the largest US universities, using MailerLite for programme newsletters
  • University of Washington - running MailerLite across research and faculty communications
  • University of Melbourne - Australia's leading research university on MailerLite
  • Publicis Sapient - global digital consultancy using MailerLite for client and community email
  • School of Visual Arts - New York art college using MailerLite for student and alumni outreach
  • University of Pittsburgh - research university with MailerLite-managed newsletters
  • Kenya Airways - national carrier of Kenya, using MailerLite for passenger communications
  • Universidad Nacional de Colombia - Colombia's largest public university on MailerLite

Which Countries Use MailerLite the Most?

Which countries use MailerLite the most? The United States dominates with 25.1% of enriched customers (18,752 companies), followed by the United Kingdom (12.6%) and Poland (8.0%). Poland's #3 ranking reflects MailerLite's Lithuanian roots and strong Eastern European adoption, and no other platform in this category shows it anywhere near the top. English-speaking countries account for 47.3% of the user base, with the rest spread across 201 countries including Spain, France, Italy, and Germany, based on our enriched company data. Percentages are shares of the 74,764 MailerLite domains where we have a company country on file.

🇺🇸United States18,75232.1%
🇬🇧United Kingdom9,43816.1%
🏳️Poland6,00410.3%
🇦🇺Australia3,7346.4%
🇨🇦Canada3,4275.9%
🇳🇱Netherlands3,4205.8%
🇪🇸Spain3,1065.3%
🇫🇷France1,8463.2%
🇩🇪Germany1,7102.9%
🏳️Italy1,5842.7%
🏳️Belgium1,3882.4%
🇮🇳India1,2902.2%
🏳️Hungary1,0001.7%
🇱🇹Lithuania9621.6%
🇧🇷Brazil8381.4%

MailerLite Market Share Among Email Marketing

What is MailerLite's market share? MailerLite holds a 4.96% share of the Email Marketing market, ranking #8 behind Mailchimp (21.24%), Klaviyo (16.78%), SendGrid (13.23%), and Mailgun (11.54%). Despite entering the space later than these competitors, MailerLite grew from a single detected domain in mid-2011 to 122,973 on our current crawl, based on our monthly crawl of 28.2M domains and 7,900+ tracked technologies at TechnologyChecker.io.

Customers123.0KCompanies using MailerLite
Companies Analyzed80.1KWith LinkedIn company data
Market Share4.96%Of the category market
Category Ranking#8In its category

Top Competitors by Market Share

MailerLite Customers by Company Size & Age

Is MailerLite only for small businesses? Mostly yes. 75.7% of MailerLite customers have 1-10 employees based on our analysis of 80,110 enriched companies, with another 17.3% in the 11-50 range, so 93% of the base is under 50 people. That is the highest micro-business concentration of any platform in this category. But organizations like Yale, the University of Michigan, and Publicis Sapient show the platform isn't limited to solo operators. The 2010s decade dominates company age at 40.4%, with 2020s startups at 32.5%, meaning nearly 73% of the user base is digital-native.

Company Size Distribution

Company Age (Founded Decade)

What Industries Use MailerLite the Most?

Business Consulting and Services leads at 5.1%, with Professional Training and Coaching effectively level at 5.06% and Advertising Services third at 3.67%. MailerLite shows a distinct appeal to knowledge workers and service businesses, unlike Mailchimp and Klaviyo where Retail leads, reflecting its positioning as a tool for creators, coaches, and consultants. Retail sits eighth here at 2.76%.

Business Consulting and Services3,733 (5.1%)
Professional Training and Coaching3,704 (5.06%)
Advertising Services2,688 (3.67%)
Wellness and Fitness Services2,285 (3.12%)
IT Services and IT Consulting2,118 (2.89%)
Retail2,023 (2.76%)

Business consulting firms using MailerLite account for the platform's largest vertical at 5.1%, with professional training and coaching businesses on MailerLite a fraction behind at 5.06% and Advertising Services third at 3.67%. Unlike platforms where Retail leads, MailerLite's industry mix skews toward knowledge workers and service businesses: coaches, consultants, and agencies that rely on content-driven email to nurture leads, based on our enriched company data.

MailerLite Alternatives & Competitors

MailerLite's competitive position at #8 reflects a platform that punches above its weight on value, based on our market share data across 28.2M crawled domains. Mailchimp (21.24%) holds the top spot with more than four times MailerLite's share but faces the heaviest churn in the category. Klaviyo (16.78%) dominates e-commerce email and is the one competitor pulling MailerLite domains away on net. SendGrid (13.23%) and Mailgun (11.54%) sit in a different segment entirely, serving transactional sending rather than campaigns.

TechnologyDomainsMarket Share
A favicon of MailChimp
MailChimp
526,67621.24%
A favicon of Klaviyo
Klaviyo
416,26216.78%
A favicon of Sendgrid
Sendgrid
328,17613.23%
A favicon of Mailgun
Mailgun
286,13811.54%
A favicon of Amazon SES
Amazon SES
204,8708.26%

MailerLite Customer Migration

These counts are domains we have actually watched switch since our crawler began tracking MailerLite in March 2026, not a lifetime history. Its biggest migration source is Mailchimp: 344 domains switched from Mailchimp to MailerLite against 97 going the other way, a net gain of 247 that makes MailerLite a clear beneficiary of Mailchimp's pricing-driven churn. The corridors run slightly against it elsewhere, with Klaviyo at 141 out against 92 in and Mailgun at 100 out against 69 in, though those are small numbers on a base of 122,973.

Switched to MailerLite
Left MailerLite
CompetitorGainedLostNet
A favicon of MailChimp
MailChimp
+166
-60
+106
A favicon of Klaviyo
Klaviyo
+52
-103
-51
A favicon of Mailgun
Mailgun
+32
-50
-18
A favicon of Amazon SES
Amazon SES
+12
-40
-28
A favicon of Sendgrid
Sendgrid
+21
-24
-3

Tech Stack of MailerLite-Powered Websites

Based on 122,973 active MailerLite domains, 56.03% also run WordPress, one of the highest CMS overlaps we measure. In e-commerce, WooCommerce dominates at 17.59%, with Shopify at 8.59% and Wix eCommerce at 4.0%, the last notably higher than other platforms and reflecting MailerLite's appeal to Wix-based small businesses. Marketing automation overlap is the thinnest in the category at 2.94% for HubSpot, which fits a base that picks one affordable tool and stops there.

Web Analytics

A favicon of Google Analytics
Google Analytics
78,367 (62.8%)
A favicon of Cloudflare Browser Insights
Cloudflare Browser Insights
9,476 (7.59%)
A favicon of Site Kit
Site Kit
7,688 (6.16%)
A favicon of PixelYourSite
PixelYourSite
6,137 (4.92%)
A favicon of MonsterInsights
MonsterInsights
5,671 (4.54%)
A favicon of Snowplow Analytics
Snowplow Analytics
1,424 (1.14%)

CMS & Website Builders

A favicon of WordPress
WordPress
69,924 (56.03%)
A favicon of Squarespace
Squarespace
6,801 (5.45%)
A favicon of Wix
Wix
5,261 (4.22%)
A favicon of Webflow
Webflow
2,388 (1.91%)
A favicon of GoDaddy Website Builder
GoDaddy Website Builder
1,884 (1.51%)
A favicon of Framer Sites
Framer Sites
709 (0.57%)

Payment Processing

A favicon of PayPal
PayPal
8,658 (6.94%)
A favicon of Apple Pay
Apple Pay
7,933 (6.36%)
A favicon of Shop Pay
Shop Pay
7,454 (5.97%)
A favicon of Visa
Visa
5,511 (4.42%)
A favicon of Mastercard
Mastercard
5,504 (4.41%)
A favicon of American Express
American Express
4,898 (3.92%)

Ecommerce Platforms

A favicon of WooCommerce
WooCommerce
21,948 (17.59%)
A favicon of Shopify
Shopify
10,714 (8.59%)
A favicon of Squarespace Commerce
Squarespace Commerce
6,798 (5.45%)
A favicon of Wix eCommerce
Wix eCommerce
4,996 (4%)
A favicon of PrestaShop
PrestaShop
550 (0.44%)

Marketing Automation

A favicon of HubSpot
HubSpot
3,673 (2.94%)
A favicon of HighLevel
HighLevel
556 (0.45%)
A favicon of Mautic
Mautic
277 (0.22%)
A favicon of Automizely
Automizely
181 (0.15%)
A favicon of ClickFunnels
ClickFunnels
155 (0.12%)
A favicon of Kliken
Kliken
152 (0.12%)

MailerLite Customer Reviews with Pros and Cons

Based on aggregated G2 reviews, MailerLite scores highest for ease of use (64 mentions) and customer support quality (62 mentions). Affordability also ranks high at 29 mentions. The most common criticism: a learning curve with advanced automations (19 mentions), though overall sentiment is strongly positive. Free plan users note limited support access, while paid plans include 24/7 live chat.

Generated from real user reviews on G2

Pros
  • Users appreciate the ease of use of MailerLite, which makes it simple to communicate with their audience and get support when needed.(64 reviews)
  • Users value the friendly and responsive customer support of MailerLite, noting that help is always available when needed.(62 reviews)
  • Users value the user-friendly features of MailerLite, which allow authors to easily connect with their readers.(31 reviews)
  • Users value the exceptional customer support of MailerLite, saying help is always available when needed.(31 reviews)
  • Users love that MailerLite is affordable, making it accessible for small businesses and individual authors alike.(29 reviews)
Cons
  • Users find the learning curve challenging with MailerLite, especially when setting up advanced automations and transitions.(19 reviews)
  • Users find missing features like advanced automation flexibility and automatic logo addition to newsletters limiting MailerLite's potential.(17 reviews)
  • Users struggle with email deliverability issues, often finding their messages landing in spam and experiencing subscriber management challenges.(15 reviews)
  • Users experience poor customer support with MailerLite, particularly finding it hard to get help on the free plan.(14 reviews)
  • Users find difficulty in moving elements within MailerLite, alongside challenges in setting up complex automations and account approval delays.(13 reviews)

Expert Analysis: MailerLite Growth Trends & Key Signals for Sales Teams in 2026

Mehmet Suleyman
Mehmet SuleymanCEO & Co-founder, TechnologyChecker

With 10+ years in web crawling and technographic data analysis, I've examined MailerLite's footprint across 122,973 active domains (80,110 enriched with firmographic data at a 65.1% match rate). What follows is a data-driven breakdown of MailerLite's market position, customer composition, and the sales signals hidden in the numbers.

1. Growth Trajectory

MailerLite went from a single detected domain in mid-2011 to a peak of 98,401 active domains in April 2025 in our long-run detection history, with the sharpest run coming after 2020: 5,644 domains at the start of that year, 21,738 by January 2022, 51,068 by January 2024. We now detect it on 122,973 domains, though it is not like-for-like with the earlier series, so treat the step across the chart's 2025-to-2026 gap as coverage rather than growth.

The retention number is the interesting one. Since we began tracking MailerLite in March 2026, only 5,149 domains have dropped it, 4.19% of the install base. Measured the same way over the same window, Mailchimp sheds 6.02% and Brevo 4.90%. Among the campaign builders, MailerLite is the stickiest.

Sales Signal: MailerLite's low churn means existing customers stick. When prospecting MailerLite users, don't pitch "switching"; pitch "expanding." These are loyal users who might add complementary tools, not replace their email platform.

"MailerLite loses 4.19% of its base in the window where Mailchimp loses 6.02%. On a category where everyone competes on price, the platform that keeps people is the one with the moat." - Mehmet Suleyman, CEO, TechnologyChecker.io

2. Customer Profile

75.7% of MailerLite customers have 1-10 employees, the highest micro-business concentration among the platforms we track in this category, and 93% have fewer than 50. The 2010s decade dominates company age at 40.4%, with 2020s startups adding another 32.5%. Combined, nearly 73% of the user base launched in the last 15 years. Business Consulting (5.1%) and Professional Training and Coaching (5.06%) lead industries, not Retail or Software, which top most competitors.

Sales Signal: MailerLite's customer profile screams "creator economy." Coaches, consultants, and digital service providers pick MailerLite because it's cheap, simple, and does what they need. If you sell to this segment, MailerLite detection on a website is a strong buying signal. It tells you the company invests in email marketing and likely has a subscriber list worth protecting.

3. Industry & Geographic Concentration

No single industry exceeds 5.1% of MailerLite's user base, making it one of the most horizontally distributed platforms we track. The US leads at 25.1%, but the UK (12.6%) and Poland (8.0%) together nearly match it. Poland's #3 ranking is unique to MailerLite, a direct consequence of its Lithuanian founding and strong Eastern European pricing. Across Europe, the Netherlands (4.6%), Spain (4.2%), and France (2.5%) add meaningful clusters, and English-speaking markets account for only 47.3% of the base.

Sales Signal: MailerLite's European diversity is a prospecting advantage. If you're selling to EU SMBs, MailerLite detection signals a cost-conscious, GDPR-aware business. Build geo-segmented outreach: "We noticed your team in [Warsaw/Amsterdam/Barcelona] uses MailerLite. Here's how to get more from your subscriber data."

4. Migration Patterns

Migration here counts domains we watched switch since March 2026, so the numbers are small by design and current by construction. MailerLite's biggest win: 344 domains switched from Mailchimp against 97 going the other direction, a net gain of 247 driven largely by Mailchimp's pricing changes. The corridors run slightly against it elsewhere: Klaviyo takes 141 while sending back 92, and Mailgun takes 100 against 69. Those losses are real but tiny against a 122,973-domain base, and they point at the two use cases MailerLite deliberately doesn't chase: deep e-commerce automation and high-volume transactional sending.

Sales Signal: The Mailchimp-to-MailerLite migration flow is a gold mine for prospecting. Companies that recently switched are in "tooling change" mode and more receptive to evaluating other solutions. Target the Mailchimp refugees with messaging like: "You just optimized your email costs by switching to MailerLite. Now optimize your CRM, analytics, or landing pages too."

"MailerLite wins the Mailchimp corridor better than three to one and loses only where it never competed: Shopify-native automation and transactional volume. That is a platform that knows what it is." - Mehmet Suleyman, CEO, TechnologyChecker.io

5. Tech Stack Ecosystem

56.03% of MailerLite domains run WordPress, the most common pairing by a wide margin. WooCommerce is the top e-commerce integration at 17.59%, with Shopify at 8.59%, but Wix eCommerce (4.0%) runs notably higher than on other platforms, reflecting MailerLite's appeal to Wix-based small businesses. Marketing automation overlap is the thinnest in the category, with HubSpot on just 2.94%, which tells you these buyers pick one affordable tool and stop.

Sales Signal: The WordPress + WooCommerce + MailerLite stack defines a budget-conscious small business. If you sell WordPress plugins, WooCommerce extensions, or SMB SaaS tools, MailerLite detection tells you: this company spends carefully, values ease of use, and probably won't have a long procurement process. Shorten your sales cycle. These buyers decide fast.

Customer Sentiment (G2 Reviews)

G2 reviewers paint a picture that reinforces what our data shows. With 295 review mentions on G2, the signal is clear. Users highlight ease of use (64 mentions) as a key strength. On the flip side, users flag learning curve challenging (19 mentions), something worth raising in any evaluation call.

What G2 Reviewers Say

Our detection data combined with G2 sentiment paints a clear picture. The top signal from G2 reviewers is ease of use (64 mentions). On the flip side, learning curve challenging (19 mentions) surfaces as the primary concern.

Key Takeaways

  • 122,973 active domains with the lowest churn of any campaign builder in the category (4.19% since March 2026)
  • 75.7% micro-businesses, the most SMB-concentrated platform we track here
  • Net +247 gain from Mailchimp, with small net losses to Klaviyo and Mailgun
  • Nearly 73% of customers founded after 2010, a digital-native, creator-economy user base
  • 56.03% WordPress overlap; WordPress + WooCommerce is the defining tech stack

Sales Applications

Cold email template: "Hi [Name], I noticed [Company] runs MailerLite on [domain]. With 122,973+ businesses using the platform, mostly in [their industry vertical], we've seen companies like yours [specific benefit]. Quick question: [value-aligned question]?"

Targeting strategy: Filter MailerLite users by company size 1-10, industry Business Consulting or Professional Training, and country US/UK/Poland. This targets the 75.7% sweet spot where buying decisions are fast and budget sensitivity is high.

Competitive angle: For companies considering Klaviyo (the platform most likely to pull a MailerLite user away), position your solution as a complement rather than a replacement. MailerLite users don't like switching; they have the lowest churn in the category.

Build your MailerLite prospect list at TechnologyChecker.io and filter by industry, company size, geography, and tech stack across 80,110 enriched companies.

Frequently Asked Questions

Who uses MailerLite?

MailerLite is used by 122,973 companies worldwide, including University of Michigan, UW group, Arizona State University, based on our analysis of 29.6M crawled domains at TechnologyChecker.io. It's particularly popular in the Business Consulting and Services industry (5.1% of customers).

How many customers does MailerLite have?

MailerLite has 122,973 active customers detected through our full-sweep crawl of 29.9M live business domains. We enriched 80,110 of these with LinkedIn company data on TechnologyChecker.io to generate detailed insights. An additional 5,149 sites that previously used MailerLite are also tracked.

What is MailerLite's market share?

MailerLite holds 4.96% of the Email Marketing market, ranking #8 in the category — based on our analysis of 29.6M domains and 40K+ technologies at TechnologyChecker.io.

What are the best alternatives to MailerLite?

The top alternatives to MailerLite include MailChimp (21.24% market share), Klaviyo (16.78% market share), Sendgrid (13.23% market share), Mailgun (11.54% market share) — based on our market share data across 29.6M crawled domains.

Which countries use MailerLite the most?

United States leads with 18,752 MailerLite customers, followed by United Kingdom (9,438), Poland (6,004), Australia (3,734), Canada (3,427), based on our enriched company data at TechnologyChecker.io.

What size companies use MailerLite?

The most common company size is 1-10 employees, representing 75.69% of MailerLite customers, based on our analysis of 80,110 enriched companies. This is followed by 11-50 employees (17.3%) and 51-200 employees (4.76%).

How old are companies that use MailerLite?

The majority of MailerLite customers were founded in the 2010s (40.39%), followed by the 2020s (32.49%), based on our analysis of 80,110 enriched companies. This suggests MailerLite is most popular among relatively young companies.

What is the ideal customer profile for MailerLite?

The ideal MailerLite customer is: Company Size: 1-10 employees, Location: US, UK, or Poland, City: London, New York, Sydney, Chicago, Founded: 2010-2019, Company Age: ~5-15 years old — based on our analysis of 80,110 enriched companies at TechnologyChecker.io.

Is MailerLite good for email marketing?

MailerLite is one of the strongest email marketing platforms for small businesses and creators. It earned 64 G2 mentions for ease of use and 62 for customer support quality. Our data shows 122,973 active domains rely on it. The drag-and-drop editor, automation builder, and landing page tools handle most email marketing needs without the complexity or cost of enterprise platforms like HubSpot.

Why use MailerLite?

MailerLite offers a free plan with 500 subscribers and 12,000 monthly emails, more generous than most competitors. Paid plans start at just $9/month. Its user base of 122,973 domains spans consulting, coaching, advertising, and higher education. According to TechnologyChecker.io data, 75.7% of customers are micro-businesses with 1-10 employees, which reflects MailerLite's focus on simplicity and value.

Which is easier to use, MailerLite or Mailchimp?

MailerLite consistently scores higher for ease of use in G2 reviews, with 64 dedicated mentions praising its interface simplicity. Mailchimp offers more features but has grown more complex over time. Our migration data confirms the trend: since March 2026, 344 domains switched from Mailchimp to MailerLite against 97 going back, with pricing and complexity the usual reasons. MailerLite's drag-and-drop editor requires less onboarding than Mailchimp's current interface.

How much is Mailchimp vs MailerLite?

MailerLite's free plan covers 500 subscribers and 12,000 emails per month. Paid plans start at $9/month (Growing Business). Mailchimp's free tier allows 500 contacts with 1,000 monthly sends, and paid plans start at $13/month. At 1,000 subscribers, MailerLite costs roughly $9/month versus Mailchimp at $26/month. That pricing gap is why MailerLite runs net +247 domains against Mailchimp in our migration data.

Is MailerLite Classic going away?

MailerLite Classic is being phased out. The company has been increasing Classic plan prices to push users toward the new version, and migration tools are available. Classic users who don't migrate face higher costs and eventually limited support. The new version offers an updated editor, improved automations, and a rebuilt interface. If you're still on Classic, migrating sooner avoids last-minute disruption.

How much is the MailerLite free plan?

The MailerLite free plan costs $0 and includes up to 500 subscribers, 12,000 monthly emails, 1 user seat, 1 website, and 10 landing pages. As of September 2025, the subscriber limit was reduced from 1,000 to 500. The free plan includes the drag-and-drop editor, email automation builder, signup forms, and pop-ups. Paid plans (Growing Business from $9/month, Advanced from $20/month) unlock unlimited emails and templates.

What is a free alternative to MailerLite?

Mailchimp offers a free plan with 500 contacts and 1,000 monthly sends. Brevo (formerly Sendinblue) provides a free tier with unlimited contacts but 300 daily emails. HubSpot's free tools include basic email marketing. In our market share data, Mailchimp leads at 21.24%, while MailerLite sits at 4.96%. Each free plan has trade-offs in subscriber limits, send caps, and feature access.

When was MailerLite founded?

MailerLite was founded in 2010 by Ignas Rubezius in Vilnius, Lithuania. The company started as a web design agency in 2005 before pivoting to email marketing. Our detection data first picked up MailerLite in mid-2011, about a year after its founding. It now runs on 122,973 active domains across 201 countries per TechnologyChecker.io data.

Does MailerLite work with WordPress?

Yes, and it's the most common pairing in our data. Of the 122,973 MailerLite domains we detect, 56.03% also run WordPress, the highest CMS overlap by a wide margin. Squarespace follows at 5.45% and Wix at 4.22%. MailerLite offers an official WordPress plugin for embedding signup forms, pop-ups, and managing subscribers directly from the WordPress dashboard.

Can MailerLite handle e-commerce email marketing?

MailerLite supports e-commerce email marketing through direct integrations with WooCommerce (17.59% overlap in our data), Shopify (8.59%), and Wix eCommerce (4.0%). It handles abandoned cart emails, product recommendations, and purchase follow-ups. However, for heavy e-commerce automation, platforms like Klaviyo (16.78% market share) offer deeper product data integration and revenue attribution tools.

How does MailerLite compare to ActiveCampaign?

MailerLite is simpler and cheaper; ActiveCampaign offers deeper automation and CRM features. Both sit in our Email Marketing category, with MailerLite at 4.96% share on 122,973 domains and ActiveCampaign at 2.1% on 52,180. Companies that prioritize ease of use and cost choose MailerLite. Those needing advanced sales automation, lead scoring, and CRM integration tend to move to ActiveCampaign.

Is MailerLite GDPR compliant?

Yes, MailerLite is headquartered in the EU (originally Vilnius, Lithuania; now Dublin, Ireland) and processes data under GDPR requirements. The platform offers double opt-in forms, consent tracking, and data processing agreements. Poland's #3 ranking (8.0% of customers) in our geographic data reflects strong EU adoption. MailerLite's European roots give it natural alignment with EU data protection standards.

Does MailerLite offer landing pages and websites?

Yes, the free plan includes 1 website and 10 landing pages. Paid plans unlock unlimited websites and landing pages. The website builder supports custom domains, blog functionality, and e-commerce product pages. In our data, many MailerLite users pair it with WordPress (56.03%) for their main site while using MailerLite's built-in pages for specific campaigns, lead magnets, and product launches.

Is email marketing still effective in 2026?

Our data says yes. MailerLite grew from 5,644 active domains in early 2020 to nearly 100,000 by April 2025, roughly 17x growth in five years, and our current crawl now finds it on 122,973. The broader Email Marketing category we track across 28.2M domains continues expanding. Email consistently delivers higher ROI than social media for direct customer communication. The shift isn't away from email but toward better segmentation, automation, and personalization.

MailerLite Overview
Customers
122,973
Companies Analyzed
80,110
Market Share
4.96%
Category Rank
#8
Top Country
United States
Top Industry
Business Consulting and Services
MailerLite Customer ICP

Based on 80,110 company data

Company Size
1-10 employees
Location
US, UK, or Poland
City
London, New York, Sydney, Chicago
Founded
2010-2019
Company Age
~5-15 years old
About Our Data

These insights include all TechnologCchecker.io detections of MailerLite (free & paid plans).

Total Detections2.08B
Detection History+20 Years
Domains Crawled29.6M
Technologies44K+
Company Match Rate31.6%