Brief Overview

Signifyd uses big data, machine learning and domain expertise that helps online merchants provide a friction-free buying experience by shifting fraud liability from merchants to Signifyd.


2540 North First Street, 3rd Floor
San Jose, California 95131


Rajesh Ramanand, Co-founder and CEO of Signifyd, previously led Emerging Markets Risk at PayPal.


Mike Liberty and Rajesh Ramanand co-founded Signifyd in 2011. The company is headquartered in San Jose. Premji Invest, Bain Capital Ventures, Menlo Ventures, American Express Ventures, IA Ventures, Allegis Cyber Resolute Ventures and others have invested $187 million in Signifyd in four rounds of funding.

Key Competitors

Forter, Riskified

Products and Services

Signifyd pioneered the guaranteed fraud protection model. It provides a SaaS anti-fraud solution that comes with a 100 percent financial guaranteed. Signifyd makes online merchants whole for any approved orders that later turn out to be fraudulent with the following capabilities:

• Customer Data Intelligence
• Persona Indicator Sources (Social, Devices, Geo-Location, Blacklists, Public Records, etc.)
• On-Line and Off-line Identity Detection