Sift
YC S11 ↗San Francisco, US · Founded 2011 · 11 known investors
Sift provides an AI-powered platform for fraud prevention and risk decisioning that helps digital businesses detect and manage online fraud. The platform serves companies across industries looking to reduce fraud losses while enabling secure growth.
AI & Machine LearningCybersecurityEnterprise SoftwareFintechSaaSMachine LearningB2Bin /getsift/@GetSiftycombinator.com ↗

Founders & leadership· Y Combinator alumni (S11)
Investors · 11
Stripes✓ verifiedNew York
Insight Partners✓ verifiedNew York · $120M – $350M
Spark Capital✓ verifiedSan Francisco · $500K – $25M
FINTOP CapitalNashville
Flucas VenturesJupiter · $100K – $5Mvia Ashley Flucas · inferred
Forefront VentureSeattlevia Phil Nadel · inferred
Founders Circle CapitalSan Francisco
Next Coast VenturesAustin · $2M – $4M
Next Frontier CapitalBozeman · $2M – $5M
Privilège VenturesLugano · $100K – $1M
Y CombinatorSan Francisco · $500K
In the news
- Chargeflow Raises $35 Million to Expand AI-Powered Chargeback Automation Platform | PYMNTS.compymnts.com · 2025
- Chargeflow Raises $35M Series A to Scale AI-Powered Chargeback Automation Platform for Global Enterprise Merchantsprnewswire.com · 2025
- App-based romance scams surge during pandemicnbcnews.com · 2023
- With prices cratering, many crypto holders stopped looking at their accounts. Scammers did not | Fortunefortune.com · 2023
- Pig butchering: A day in the life of a cyberfraud fighter | VentureBeatventurebeat.com · 2022
- How crypto scams work – and why enterprises need to take note | VentureBeatventurebeat.com · 2022
- Fraud as a service: Scammers are using encrypted messaging to undercut BNPL revenue • TechCrunchtechcrunch.com · 2022
- Leading SaaS Provider Chargeback Raises an Additional $6.6 Millionprnewswire.com · 2020
