Companies Using FingerprintJS

With 10+ years in web crawling and technographic data analysis, I've examined FingerprintJS's growth trajectory and customer profile using our 6,815 enriched company dataset (a 13.75% match rate against 49,576 active domains), as of our April 2026 crawl at TechnologyChecker.io. We matched FingerprintJS domains against LinkedIn company profiles to uncover who actually uses the library, where they're located, and how the competitive picture is shifting. FingerprintJS sits at an interesting intersection: it's an open-source library that competes directly with its own commercial upgrade, Fingerprint Pro.

Growth trajectory

FingerprintJS went from 2 active domains in May 2020 to a peak of 33,888 in May 2025. That's a 16,944x increase in five years. The growth wasn't linear. It came in two distinct waves. The first wave (2021-2023) was steady, climbing from single digits to roughly 3,500 active domains by late 2023. The second wave started in April 2024, when active domains exploded from 4,250 to 13,238 in a single month. By September 2024, the count had reached 17,918. By May 2025, it topped 33,888.

What caused the April 2024 spike? Fingerprint announced its $33M Series C in October 2023, led by Nexus Venture Partners with participation from Uncorrelated Ventures (PR Newswire), bringing total funding to $77M across 4 rounds. The company reported 175% revenue growth over two years and added 50 new enterprise customers in FY2025 (BusinessWire, Apr 2025). The open-source library now sees 5 million npm downloads per month (with the Pro SDK adding 1.3 million more), and the GitHub repo has accumulated 26,900+ stars. The current count of 30,903 active domains (July 2025) represents a slight pullback from the May peak, consistent with seasonal patterns.

"A 16,944x growth rate over five years is extraordinary even by open-source standards. But the real story is the April 2024 inflection point, where a single month added more domains than the previous two years combined. That kind of step-function growth points to a distribution event, not organic adoption." - Mehmet Suleyman, CEO at TechnologyChecker.io

Sales Signal: The post-April 2024 cohort represents the majority of FingerprintJS's active base. These are newer adopters who haven't yet built deep integrations. They're the most likely segment to evaluate commercial alternatives, upgrade to Fingerprint Pro, or add complementary fraud prevention tools. Target companies that started using FingerprintJS in the last 12-18 months with messaging about scaling limitations of the free tier.

Customer profile

The enriched data paints a clear picture. 73.2% of FingerprintJS customers have 1-10 employees. Combined with the 11-50 bracket, 88.1% are small businesses. The age distribution reinforces this: 42.71% were founded in the 2010s and 25.42% in the 2020s. That means 68.13% are digital-native companies less than 15 years old. This is a developer-driven tool adopted overwhelmingly by startups and indie projects.

Yet the enterprise tail is real. Our company list includes Verizon, Nike, Adobe, P&G, Standard Chartered, Broadcom, and Texas Instruments. Fingerprint's own pricing page lists Dropbox, US Bank, Western Union, Binance, Trustpilot, TikTok, and Rockstar Games as customers. Published case studies add specifics: Neiman Marcus boosted returning visitor recognition from 8-10% to 23%, and Checkout.com's fraud engineering team reached production in under a week. The detection URL pattern tells the story: Verizon uses it on community.verizon.com, Nike on share-nikebyyou.nike.com, Adobe on stage2.adminconsole.adobe.com. These are targeted subdomain deployments, not company-wide rollouts. Enterprise companies adopt FingerprintJS for isolated use cases (login security, fraud detection on a single portal) before potentially upgrading to Fingerprint Pro.

Sales Signal: The 88.1% small business concentration means volume-based outreach works best for this install base. For enterprise accounts (0.8% at 10,001+ employees), focus on the expansion play: they're already using the open-source library on one subdomain. Position your product as the tool they'll need when they deploy fingerprinting across more surfaces. Reference specific detection URLs to demonstrate that you understand their current setup.

Industry and geographic concentration

Retail dominates at 12.26%, the only vertical in double digits. Software Development follows at 4.23%, then Restaurants at 3.44%. The retail concentration makes practical sense. Browser fingerprinting solves three core retail problems: coupon fraud, account sharing, and returning visitor identification. The restaurant presence (3.44%) is surprising until you consider that many "restaurant" companies in our data are actually online ordering platforms and delivery aggregators that need bot protection.

Geographically, the United States leads at 55.5% (3,059 companies), but the second-place finish is unexpected. Brazil ranks #2 at 10.2% (562 companies), ahead of the UK at 9.2% (506). Fingerprint's April 2025 press release confirms this Latin American momentum, naming Banco Pan, Grupo Acosta Ganha, and Banco C6 S.A. as regional customers (BusinessWire). The company also launched an Android Freemium tier specifically targeting Brazil, India, and Indonesia with 500,000 free API calls. India (206 companies, 3.7%) has vendor-confirmed customers including Razorpay, Zepto, and Uni Cards, the latter saving ₹6.5M monthly (~$78K) from prevented ATO fraud (Uni Cards case study).

Sales Signal: Brazil is underserved relative to its adoption. With 562 companies and growing, it's the second-largest FingerprintJS market but likely receives less sales attention than the US or UK. If your product serves Brazilian fintechs or ecommerce companies, the FingerprintJS install base is a pre-qualified prospect list. For US-focused outreach, filter by retail (12.26%) and financial services (1.96%) to find the companies with the highest willingness to pay for fraud prevention tooling.

Migration patterns

The migration data between FingerprintJS and Fingerprint Pro reveals an unusual dynamic. 131 companies switched from Fingerprint Pro to FingerprintJS (the open-source version), while only 88 moved from FingerprintJS to Fingerprint Pro. That's a 1.49:1 ratio favoring the free library over the paid product. In most markets, migration flows from free to paid. Here, the reverse is true.

The timing adds context. Of those 131 Fingerprint Pro defectors, 110 switched in the last year. This correlates with G2 reviews citing pricing as the #1 complaint (60 mentions) and inflexible pricing (16 mentions) as a specific pain point. Companies tried the paid tier, found it too expensive for their scale, and reverted to the open-source library. Against other competitors, FingerprintJS holds a 2.09:1 advantage over ThreatMetrix (23 gained vs. 11 lost) and runs nearly even with MaxMind (19 gained vs. 20 lost).

"The 1.49:1 migration ratio from Fingerprint Pro back to FingerprintJS isn't a competitive weakness for the platform. It's a pricing signal. Companies are telling you they want fingerprinting capability but can't justify the commercial tier at current price points. That gap is where alternative tools and custom solutions find their market." - Mehmet Suleyman, CEO at TechnologyChecker.io

Sales Signal: The 110 companies that recently switched from Fingerprint Pro back to FingerprintJS are actively cost-sensitive buyers who still need fingerprinting. They downgraded on price, not on need. If you sell a fraud prevention or identity verification tool that competes on cost, these 110 companies are your highest-intent prospects. They've already proven they'll pay for fingerprinting; they just need a better price point.

Technology ecosystem

The tech stack data around FingerprintJS reveals a surprising skew toward enterprise and legacy tooling. Cloudflare Radar leads web analytics at 12.9%, followed by Microsoft Clarity (9.0%) and Bing UET (8.76%). The Microsoft-heavy analytics stack (Clarity + Bing UET together at 17.76%) suggests that a meaningful portion of FingerprintJS domains sit within Microsoft-ecosystem companies or use Azure-hosted infrastructure.

The JavaScript framework overlap is particularly telling. Vue v2 (4.68%) and AngularJS (3.89%) are the top two frameworks. Both are legacy. Vue 3 has been the default since 2022. AngularJS reached end-of-life in January 2022. This means FingerprintJS is heavily deployed in applications that haven't migrated to modern frameworks, which makes sense: these are often internal tools, login portals, and dashboards where fingerprinting adds security value but where full frontend rewrites aren't a priority.

For bot detection, Cloudflare Bot Manager (6.24%) is the only meaningful overlap. The remaining tools (Hu-manity.co at 0.57%, AWS WAF CAPTCHA at 0.41%) have minimal presence. This suggests most FingerprintJS users treat the library as their primary device identification layer rather than combining it with dedicated bot detection services.

Sales Signal: The Vue v2 and AngularJS concentration identifies companies running older applications. These companies likely have limited frontend engineering resources and prefer drop-in tools over complex integrations. If your product requires minimal code changes (a script tag or simple SDK), emphasize that in outreach to FingerprintJS users. Conversely, if your product requires React or Next.js, you'll have a smaller addressable market within this install base.

G2 review signals

I've cross-referenced our crawl data with G2 review sentiment and Fingerprint's published case studies to triangulate the user experience. The top positive signals are ease of use (131 mentions), simple setup (99 mentions), ease of setup (98 mentions), and easy integration (98 mentions). Four of the top four pros are variations of the same theme: this thing is easy to install. Case studies confirm it. FlightHub's fraud team integrated Fingerprint in weeks with a lean dev team. ZBD's product manager called the documentation "miles ahead of other vendors." When 73.2% of your users have fewer than 10 employees, ease of implementation isn't a nice-to-have. It's the reason they chose you.

The negative signals are more informative. Pricing at 60 mentions is the #1 complaint. Pro Plus starts at $99/mo for 20K API calls, then $4 per additional 1,000 (fingerprint.com/pricing). That escalation directly explains the 110 companies that recently downgraded from Fingerprint Pro back to the open-source library. Inaccuracy at 31 mentions is the #2 complaint, with users reporting false positives. Yet FlightHub actually saw a 6% reduction in false positives after switching to Fingerprint from a legacy provider, suggesting the accuracy complaints may be version-dependent or use-case-specific rather than systemic.

Sales Signal: The accuracy complaint (31 mentions) opens a direct competitive angle. If your product offers higher identification accuracy, lead with that in outreach to FingerprintJS users. Don't bash the tool. Instead, frame it as: "FingerprintJS got you started. Here's what you need at scale." The 31 companies that specifically mentioned inaccuracy on G2 are telling you they want better precision and are willing to switch for it.

Key takeaways

1. FingerprintJS owns the browser fingerprinting category. 63.12% market share, 49,576 active domains, and 16,944x growth in five years. The open-source model has created a distribution advantage that commercial competitors struggle to match.

2. The customer base is overwhelmingly small and young. 73.2% have 10 or fewer employees. 68.13% were founded after 2010. Enterprise logos exist but represent isolated subdomain deployments, not company-wide infrastructure.

3. Brazil is the surprise #2 market. With 562 companies (10.2%), it outranks the UK. Fingerprint confirmed this with named customers Banco Pan, Grupo Acosta Ganha, and Banco C6 S.A., plus a dedicated Android Freemium tier for the region.

4. The Fingerprint Pro migration pattern is unusual. More companies are moving from paid to free (131) than free to paid (88). Pricing sensitivity is the primary driver, confirmed by G2 review sentiment.

5. Retail is the strongest vertical. At 12.26%, it's the only industry in double digits. Coupon fraud, account sharing, and returning visitor identification drive adoption.

6. The tech stack skews legacy. Vue v2 and AngularJS lead framework adoption. These are older applications maintained by small teams, which aligns with the library's developer-first, easy-to-install positioning.

Sales applications

Outreach template for FingerprintJS users:

"Hi [Name], I noticed [Company] uses FingerprintJS on [specific subdomain from detection URL]. Our data shows that 73% of FingerprintJS users are small teams, and most hit accuracy limits around [X monthly visitors]. We help companies like yours [specific value prop] without the scaling costs of Fingerprint Pro. Worth a quick look?"

Targeting strategy: Filter the FingerprintJS install base by company size (1-50 employees), industry (retail or financial services), geography (US or Brazil), and founding year (2010-2020). This narrows to digital-native companies with revenue, fraud exposure, and a proven willingness to implement fingerprinting. For enterprise accounts, use the detection URL data to identify which subdomain runs FingerprintJS and reference it directly in outreach.

Competitive angle: Don't position against FingerprintJS directly. It's open-source and free. Instead, position as the next step. The G2 data gives you the opening: 60 mentions of pricing concerns and 31 mentions of accuracy issues. Frame your outreach around solving the specific problems that FingerprintJS users already complain about. For the 110 companies that recently left Fingerprint Pro, lead with cost savings. For the 31 that mentioned accuracy issues, lead with precision.

Explore the full FingerprintJS install base with company-level filtering at TechnologyChecker.io. Our dataset covers 49,576 active FingerprintJS domains with 6,815 enriched companies including industry, size, location, and tech stack data. Use the "Create Lead List" feature to build targeted prospect lists, or set up a Signal to track when companies start or stop using FingerprintJS.