Companies Using Calendly

We detect Calendly on 158,003 domains, including Iron Mountain Inc., Securion beveiliging, RWS Group. A detection means the technology is present on that domain, which for large organisations is often a single storefront or subdomain rather than a company-wide deployment. Among domains we matched to a company with a resolved industry, the most common is Business Consulting and Services (9.99%).

We detect 158,003 domains running Calendly across our monthly crawl of live business domains. Company data could be matched for 124,779 of them (79.0%), and every company-size, industry and country breakdown on this page describes that matched subset rather than the full detected base. A further 16,732 domains carried a Calendly detection previously and no longer do.

Calendly holds 62.56% of the Appointment Scheduling category, ranking #1. This is a share of the domains we detect running a platform in this category — not a share of all websites, and not a share of spending — so it is not directly comparable to figures published on other denominators.

The top alternatives to Calendly include Bookly (5.59% market share), FareHarbor (4.63% market share), BookThatApp (1.71% market share), Appointo (1.67% market share) — measured as a share of the domains we detect running a platform in this category.

United States leads with 45,327 matched Calendly domains, followed by United Kingdom (9,702), Germany (7,488), France (7,307), Canada (5,848). These are counts within the 124,779 domains we could match to a company record, not the full detected base.

The most common company size is 1-10 employees, representing 79.29% of the Calendly domains we could match to a company record and size — a subset of 124,779 matched companies, not of all 158,003 detected domains. This is followed by 11-50 employees (16.38%) and 51-200 employees (3.26%).

Among the Calendly domains we could match to a company with a known founding date, the largest group was founded in the 2020s (44.21%), followed by the 2010s (39.79%). That matched subset is drawn from 124,779 companies and is not representative of all 158,003 detected domains. This suggests Calendly is most popular among relatively young companies.

The ideal Calendly customer is: Company Size: 1-10 employees, Industry: Consulting, coaching, or agency services, Location: US, UK, Germany, or France, Founded: 2020-2026, Website: WordPress, Wix, Squarespace, or Webflow — based on our analysis of 124,779 enriched companies at TechnologyChecker.io.

Yes. Calendly reached unicorn status in January 2021 when it raised $350 million in a Series B round led by OpenView and Iconiq Capital. That funding round valued Calendly at $3 billion. The company was founded in 2013 by Tope Awotona and operates as a private, remote-first company with approximately 545 employees.

The data says it is built for them. Of the 124,779 detected domains we matched to a company record, 79.29% have 1 to 10 employees and a further 16.38% have 11 to 50, so 95.67% of the base is under 50 people. Calendly offers a free plan with one event type per user, and paid plans start at $10 per user per month for the Standard tier.

Common criticisms include pricing that adds up quickly for teams (per-user billing means a 10-person team pays $100-$160/month), limited customization on the free plan (one event type, Calendly branding), and the learning curve for advanced features like routing and round robin. Some users also note that the mobile app lacks feature parity with the web version.

It depends on your stack, but our switching data leans one way. Since we began tracking in March 2026 we observed 17 domains move from Acuity Scheduling to Calendly and 4 move the other way, a 4.25:1 ratio in Calendly's favour. Acuity's advantage is its native fit with Squarespace, since Squarespace acquired it in 2019. Calendly stayed platform-agnostic, which shows up in the direction of the flow. Note these are counts of domains and the absolute numbers are small.

Calendly offers four plans: Free (1 event type), Standard ($10/month per user), Teams ($16/month per user), and Enterprise (custom pricing starting around $300/user annually). Acuity Scheduling starts at $16/month for the Emerging plan. Both offer free trials, but Calendly's free tier is more generous for individual users.

Yes. Microsoft Bookings is included with Microsoft 365 Business Standard and above at no extra cost, and handles appointment scheduling with calendar integration. It is the most credible threat to Calendly in organisations that already pay for Microsoft 365, which is why Calendly's enterprise tier leans on SSO, provisioning, and routing features rather than on booking alone.

Calendly's free plan includes one active event type per user, basic integrations with Google and Microsoft calendars, and Calendly branding on booking pages. You don't get custom branding, team scheduling, round robin routing, automated workflows and reminders, payment collection via Stripe, or analytics. The free plan works for solo users with simple booking needs.

TidyCal, available as a lifetime deal on AppSumo, appeals to budget-conscious users who want a one-time payment instead of monthly fees. Calendly offers deeper integrations (HubSpot, Salesforce, Zoom), team features, and enterprise-grade security. For solopreneurs on a tight budget, TidyCal can work. For growing teams that need CRM integration and routing, Calendly is the stronger choice.

Across the 124,779 domains we matched to a company record, Business Consulting and Services leads at 9.99%, followed by Professional Training and Coaching (6.82%), IT Services and IT Consulting (6.74%), Software Development (6.38%), Advertising Services (6.14%), Financial Services (5.58%), and Marketing Services (5.48%). No single industry passes 10%. The common thread across the leaders is that the business sells its own time, so the booking link is the point of sale rather than an administrative convenience.

It can, but it is not what the base looks like. Only 0.04% of the companies we matched have more than 10,000 employees, though that thin tail includes Iron Mountain, and another 0.13% sit in the 1,001 to 5,000 band alongside Twilio, Deel, and Box. Calendly's Enterprise plan adds SAML SSO, SCIM provisioning, admin analytics, and domain claiming. In organisations of that size a detection is usually one team's booking page rather than a company-wide deployment.

Calendly maintains SOC 2 Type II certification and GDPR compliance, offers SAML SSO on Enterprise plans, and does not store payment details directly, processing instead through Stripe or PayPal. Regulated industries are well represented in our data: Financial Services accounts for 5.58% of matched companies and Accounting a further 2.6%, which are sectors that generally require audited controls before approving a booking tool.

Calendly uses a freemium SaaS model with per-user, per-month pricing. Free users get basic scheduling; paid plans (Standard at $10/month, Teams at $16/month) unlock advanced features like team scheduling, routing, and integrations. Enterprise pricing is custom. The company reached a $3 billion valuation in 2021 on roughly $70 million in ARR, implying strong unit economics from its self-serve motion.

Yes. Calendly integrates with HubSpot, Salesforce, and other CRMs. HubSpot is the most common CRM pairing in our data, appearing on 5.69% of Calendly domains. The integration creates contacts, logs meetings, and triggers workflows when a booking happens, which is why sales teams are a core use case even though the base is dominated by very small businesses.

In one direction, consistently. Since we began tracking in March 2026 we observed 66 domains leave Calendly for Cal.com while only 2 moved the other way, a 33:1 ratio and the largest single switching flow anywhere in the appointment scheduling category. Context matters though: Cal.com is on 3,857 domains against Calendly's 158,003, so this is a clear directional signal rather than a threat to Calendly's lead. Cal.com's draw is that it is open source and can be self-hosted, which speaks to the pricing complaints that show up in Calendly's review data.