Finix
Full-stack payment infrastructure enabling platforms to own payment processing and economics.
Overview
Finix is a payment infrastructure platform that empowers software platforms, marketplaces, and SaaS companies to become payment facilitators and own their entire payment experience—from onboarding through processing to payouts. Founded in 2015, the platform processes tens of billions annually and serves as a direct alternative to Stripe, Adyen, and Square by providing the underlying acquirer technology that allows platforms to capture payment economics (20-40 basis points per transaction) rather than paying per-merchant fees. The platform operates as a full-stack payment processor with registered payment facilitator status, holding PCI DSS Level 1 certification. Finix handles critical payment operations including merchant underwriting, KYC/compliance, reconciliation, dispute management, and automated reporting—all embedded in the platform. The company offers three integration paths: API-first for developers, white-label for full customization, and no-code tools like Checkout Pages and Virtual Terminal for merchants without technical resources. Founded by Harvard-educated consultant-turned-engineer Richie Serna and Sean Donovan (formerly VP of PayFac at Vantiv/WorldPay), Finix has raised $208 million across four funding rounds, with its most recent $75M Series C (October 2024) led by Acrew Capital. The company has achieved 4.7/5 ratings on Capterra and serves customers across retail, healthcare, education, agtech, and financial services verticals.
Key features
- Payment facilitation infrastructure
- White-label and no-code solutions
- Transparent, configurable pricing
- Embedded compliance and underwriting
- Automated reconciliation and dispute management
- Hundreds of API configurations
- 99.999% uptime SLA
Vertical focus
horizontal, healthcare, restaurants, real_estate, education, agriculture, nonprofit
Notable customers
Passport, AgVend, Beyond Pricing, Meadow, Pay Theory
At a glance
| Category | payments |
|---|---|
| Model | ["api_first","white_label","hybrid","no_code","api"] |
| Pricing | ["revenue_share","per_transaction","monthly_fee","custom","transaction_fee"] |
| Revenue share | 20-40 bps per transaction |
| Best company size | ["startup","smb","mid_market","enterprise","growth"] |
| Minimum volume | Contact for details |
| Time to launch | days |
| Technical complexity | medium |
| PCI scope | full |
| Founded | 2015 |
| Funding stage | series_c |
| Website | https://finix.com |
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