Sardine
Sardine is a Payment Infrastructure company founded in 2020 and based in San Francisco, United States. It has raised $145.6M in total funding, most recently a Series C in 2025.
AI-powered fraud prevention and compliance platform for real-time payments, offering instant ACH-to-crypto on-ramps and risk management for fintechs and crypto companies. $51.5M Series B led by a16z. Backed by Visa, Experian, and FIS. $23M revenue in 2024. 250+ enterprise customers.
Sardine solves the fraud problem that makes instant payments risky—its instant ACH settlement product closes the gap between traditional rails and crypto-speed settlement.
sardine.ai ↗·Payment Infrastructure·
United States·private 
