FingerprintJS Raises $32 Million in Series B  

by Kay Aloha Villamor in November 4th, 2021

FingerprintJS, a Chicago, IL-based open-source browser fingerprinting service, raised $32 million in Series B, bringing total funding to date to $44 million led by Craft Ventures, with participation from existing investors Nexus Venture Partners and Uncorrelated Ventures.

The company intends to use the funds to accelerate the development of additional developer tools, including a JavaScript bot detection API, the open-source client for which is already available on GitHub, to continue developing its Account Sharing Prevention product, an end-to-end solution for companies looking to increase revenue by reducing sharing of per-user paid accounts.

Company: FingerprintJS, Inc.

Raised: $32.0M

Round: Series B

Funding Month: November 2021

Lead Investors: Craft Ventures

Additional Investors: Nexus Venture Partners and Uncorrelated Ventures

Company Website:

Software Category: Fraud detection API for the Internet

About the Company: Led by Dan Pinto, co-founder, and CEO, FingerprintJS aids developers in building fraud detection with APIs capable of identifying fraudsters even when they attempt to conceal their identity online. Over the past year, the company has had a 300%+ increase in annual recurring revenue. The growth is attributed to the success of its open-source browser fingerprinting library, which has been downloaded over 14 million times and is used by 12% of the top 500 websites by total traffic including eBay, Coinbase, Agoda, and Yahoo!. Customers can upgrade to FingerprintJS Pro, a cloud-hosted SaaS version of the service that amps up identification accuracy using additional client and server-side techniques, combined with the most advanced machine learning and AI tools available for browser identification. 




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