Startup profile for Signifyd: latest funding, latest known valuation, total disclosed funding, investors, status, sources, and why the company is interesting. Part of the Venture Capital Tracker startup directory.

Startup profile · funding coverage

Signifyd funding, valuation and investors

Commerce protection platform guaranteeing retailers against fraud and chargebacks.

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Funding, valuation & investors

Answer-first snapshot

Latest funding

Series E

$205M · April 2021

Latest known valuation

$1.34B

Series E · April 2021

Total disclosed equity funding

$205M

Excludes debt, grants, acquisitions, secondaries, and IPO proceeds.

Current status

private

growth · San Jose, California

Investors in latest funding

Lead: Owl Rock

Other: Andreessen Horowitz , Bain Capital Ventures , Menlo Ventures

Sources: latest funding Last verified: 2026-07-25

Overview

Signifyd provides ecommerce fraud protection with a chargeback guarantee — approving or declining orders and reimbursing merchants for fraudulent chargebacks on approved orders. Founded in San Jose in 2011, the company uses a commerce network and machine learning to assess buyer identity and intent. Andreessen Horowitz was an early investor; Bain Capital Ventures and Menlo Ventures joined later rounds. Signifyd raised $205M Series E in April 2021 at $1.34B valuation led by Owl Rock (now Blue Owl).

Why Signifyd is interesting

Signifyd's chargeback guarantee model scaled to unicorn status — a16z seed before Bain and Menlo joined growth rounds at $1.34B valuation.

Product & use cases

Signifyd's Commerce Protection Platform scores orders at checkout and guarantees approved transactions against fraud chargebacks — shifting fraud risk from merchants to Signifyd.

  • Ecommerce checkout fraud screening
  • Chargeback guarantee for approved orders
  • Account takeover prevention at login
  • BNPL and marketplace fraud protection

Key facts

  • Series E (Apr 2021): $205M at $1.34B led by Owl Rock — BusinessWire
  • a16z seed investor; Bain and Menlo in growth rounds
  • Chargeback guarantee commerce protection model
  • Serves large ecommerce and enterprise retailers

Funding history (newest first)

Investors in our directory

Funds linked from Signifyd's profile — open a fund page for stage focus and related deal articles.

Competitive landscape

Edge: Guarantee model aligns incentives — Signifyd loses money on bad approvals, unlike pure SaaS scoring vendors.

Ecommerce fraud protection bifurcated into guarantee vendors (Signifyd, Riskified) and scoring APIs. Signifyd's $1.34B valuation reflects enterprise retailer adoption; competes directly with Riskified for large merchant logos.

  • Riskified direct

    Similar chargeback guarantee model; public company (NYSE: RSKD).

  • Forter direct

    Enterprise fraud decisioning with guarantee options.

  • Sift adjacent

    Digital trust platform; less guarantee-focused historically.

  • Stripe Radar adjacent

    Built-in fraud tools for Stripe merchants.

Notable stories

  • Signifyd pioneered the chargeback guarantee — merchants pay for approved orders that fraud, aligning vendor incentives with merchant outcomes.
  • a16z seed bet in 2011 preceded a decade of ecommerce fraud escalation and BNPL expansion.

Industries

Fintech Enterprise SaaS Cybersecurity

FAQs about Signifyd

Practical answers founders, operators, and investors typically search for.

Signifyd provides ecommerce fraud protection with a chargeback guarantee — reimbursing merchants for fraud on orders Signifyd approves.
Andreessen Horowitz (/fund/andreessen-horowitz), Bain Capital Ventures (/fund/bain-capital-ventures), and Menlo Ventures (/fund/menlo-ventures) participated. Owl Rock led Series E.
April 2021 Series E was at $1.34B valuation per BusinessWire.
Both offer chargeback guarantee models for ecommerce. Riskified is public (RSKD); compare approval rates and vertical expertise.
April 2021 — $205M at $1.34B valuation.
Signifyd is private; profitability not publicly disclosed.
Signifyd approves or declines orders; merchants receive reimbursement for fraudulent chargebacks on approved transactions.
San Jose, California.
Rajesh Ramanand and Mike Liberty co-founded Signifyd in 2011.
We track a16z-backed fintech companies.

By Venture Capital Tracker

Last updated:

Editorial note: AI tools assisted with research, structure, or drafting. Venture Capital Tracker retains human editorial responsibility for factual accuracy, relevance, and source quality before publication.