Companies Using Hotjar

I dug into Hotjar's adoption data from our 131,478 enriched company dataset, matching detected domains to LinkedIn company profiles. As of our March 2026 crawl. We track 256,146 domains running Hotjar's tracking scripts across the web. The numbers tell a story of a mature SaaS platform navigating its biggest transition yet -- the merger into Contentsquare.

Growth Trajectory

Hotjar's adoption curve tells a classic SaaS growth story. Our detection data shows near-zero activity until late 2014 when the product launched publicly. Within 12 months, active domains jumped from 9 to 3,207. Growth remained steady through 2016-2019, crossing 50,000 active domains by October 2019. The pandemic years brought a second wave: active domains doubled from 55,968 in January 2020 to 114,749 by December 2021. The platform peaked at 257,542 active domains in March 2025, then declined to 208,042 by July 2025 -- a 19% drop in four months. This decline coincides with Hotjar's formal merger into Contentsquare (July 2025). It's worth watching whether this reflects real churn or a detection artifact as scripts migrate to Contentsquare domains.

Sales Signal: The Contentsquare merger creates a 90-day evaluation window. Companies reassessing their Hotjar subscriptions are actively comparing alternatives. Target them with migration-ready positioning and competitive pricing.

"When a 256K-domain platform merges into a different brand, every customer re-evaluates. That's not speculation -- our data shows a 19% active domain decline in four months. The companies that dropped Hotjar are buying something else right now." -- Mehmet Suleyman, CEO at TechnologyChecker.io

Customer Profile

Unlike many SaaS tools where micro-businesses dominate, Hotjar's customer distribution skews toward mid-market. 32.8% have 1-10 employees, but the 11-50 bracket holds 25.5% and the 51-200 range accounts for 18.3%. Nearly two-thirds of Hotjar's base has more than 10 employees. The enterprise tail is strong: 2,590 companies with 10,001+ employees, including Accenture, Deloitte, McDonald's, IBM, Samsung, Uber, and Nokia. The age distribution shows 41.7% of companies were founded in the 2010s and 18.8% in the 2020s, with the remaining 40% including established enterprises from pre-2010 decades.

Sales Signal: The 2,590 enterprise accounts (10,001+ employees) represent high-value displacement targets during the Contentsquare transition. These companies have budget for behavior analytics and are evaluating whether the merged platform meets their needs.

Industry and Geographic Concentration

IT Services leads at 8.6%, followed by Software Development (7.0%) and Marketing Services (4. For more context, see our marketing automation market share report.4%). The technology-adjacent cluster (IT, software, marketing, and internet companies) together accounts for over 23% of the base. Financial Services (3.9%), Healthcare (3.0%), and Higher Education (2.9%) show Hotjar has real traction outside the tech bubble. Geographically, the United States leads with 40.9% (53,716 companies), but Hotjar has notably stronger European penetration than most US-centric SaaS tools. Germany (5.5%), France (5.0%), Netherlands (3.5%), and Spain (2.5%) together contribute over 16% of the base.

Sales Signal: The ~25% European customer base is unusually high for a behavior analytics tool. Competitors targeting Hotjar's European users should emphasize GDPR-first data handling and EU-based infrastructure.

Migration Patterns

Hotjar's migration data is dominated by the Google Analytics ecosystem rather than direct competitors. The largest inflow is 46,518 companies from Google Universal Analytics, reflecting the GA3-to-GA4 migration that left many teams re-evaluating their entire analytics stack. 20,450 from GA4 and 15,296 from Global Site Tag also added Hotjar during this period. On the loss side, 58,705 companies that previously used Hotjar now have Google Analytics, and 43,416 adopted GA4. The gain-to-loss ratio with Google Universal Analytics is telling: 46,518 gained vs. 20,820 lost, a 2.2:1 ratio in Hotjar's favor. Companies dropping the deprecated GA3 often add Hotjar as part of their new stack.

Sales Signal: Companies that recently dropped Google Universal Analytics and added Hotjar are rebuilding their analytics stack from scratch. They're receptive to additional tools for conversion optimization, A/B testing, and product analytics.

"The GA3-to-GA4 migration was the biggest analytics stack shakeup in a decade. Hotjar benefited with a 2.2:1 gain ratio against Google Universal Analytics. But now the Contentsquare merger creates a second shakeup -- and this time, Hotjar is on the disrupted side." -- Mehmet Suleyman, CEO at TechnologyChecker.io

Technology Ecosystem

The tech stack data paints a clear picture. Google Tag Manager at 94.0% is essentially a prerequisite; nearly every Hotjar user loads it through GTM. Google Analytics at 92.1% and GA4 at 71.6% confirm Hotjar is a companion tool, not a standalone analytics solution. The social and advertising stack is revealing: Facebook integration at 86.7%, LinkedIn at 56.0%, and Facebook Pixel at 48.3% suggest these companies run active paid acquisition campaigns. They need Hotjar precisely because they're spending money driving traffic and want to understand why it isn't converting.

Sales Signal: The 48.3% Facebook Pixel overlap means nearly half of Hotjar users run paid social campaigns. Cross-sell landing page optimization, A/B testing, and conversion rate tools to this audience.

G2 Review Signals

G2 reviews echo what our adoption data reveals about user experience. Users consistently praise intuitive and easy to navigate (12 mentions), insightful tools (11 mentions), and detailed heatmaps (10 mentions). The Session Replay feature gets 9 dedicated mentions as a standout capability. On the negative side, recording issues (4 mentions) including session limits and slow loading top the list, followed by difficult filtering (3 mentions) during high-traffic periods. The positive-to-negative ratio of roughly 3:1 indicates strong satisfaction, but the recording complaints correlate with Hotjar's free-tier limitations (35 daily sessions). The ease-of-use praise aligns with Hotjar's mid-market positioning -- these aren't power users needing enterprise analytics depth. They're product managers and marketers who want visual insights without a data science team.

Sales Signal: The recording issues complaint (4 mentions) points to users hitting free-tier session caps. These are companies with enough traffic to need paid plans but potentially frustrated by the upgrade path. Target them with transparent, volume-based pricing.

Key Takeaways

1. The Contentsquare merger is the defining event. A 19% decline from 257K to 208K active domains in four months signals that the transition is creating real churn, not just detection artifacts.

2. Mid-market is the sweet spot. With 58.3% having 11+ employees and 2,590 enterprise accounts, Hotjar's customer base is more commercially valuable than its market share ranking (#12) suggests.

3. European penetration is a differentiator. At ~25% of the base, Hotjar's EU presence (founded in Malta) gives it geographic diversity that competitors like FullStory or CrazyEgg lack.

4. Technology and consulting sectors dominate. Over 23% of users work in IT, software, or marketing services -- these are teams with dedicated UX researchers and product managers.

5. The GA3-to-GA4 migration drove Hotjar adoption. The 2.2:1 gain ratio against Google Universal Analytics shows Hotjar benefited from the analytics stack rebuild of 2023-2025.

Sales Applications

Outreach Template: "I noticed your team uses Hotjar for behavior analytics [via TechnologyChecker.io detection]. With the Contentsquare merger changing how teams access heatmaps and session recordings, companies in [industry] are evaluating alternatives. We serve [X] similar organizations. Worth comparing approaches?"

Targeting Strategy: Prioritize the 24,066 companies in the 51-200 employee segment (18.3% of base) in IT Services and Software Development verticals. These mid-market teams have budget for behavior analytics but may not qualify for Contentsquare's enterprise pricing after the merger.

Competitive Angle: When selling against Hotjar/Contentsquare, lead with transparent pricing (Hotjar's free tier was its biggest acquisition channel -- if Contentsquare restricts it, displacement accelerates), session recording volume (free-tier complaints reference the 35 daily session cap), and standalone simplicity versus Contentsquare's enterprise-scale platform complexity.

Our database tracks 131,478 enriched companies using Hotjar across 256,146 total domains. For the complete customer list with LinkedIn profiles and industry data, explore the Hotjar technology page on TechnologyChecker.io.