PYMNTS · Jul 2026
Profile of Guy Ziv and Sunlight’s agentic B2B payment execution model; argues the real problem is fragmented supplier portals and payment execution, not low card acceptance.
The Universal Card-On-File API
Public company, workplace, funding, and market signals
Updated Jul 29, 2026
Sunlight (YC S22) is a New York–based B2B payments infrastructure company that uses AI agents to execute card payments through supplier portals and card-on-file workflows, helping fintechs, banks, card issuers, and AP/payables platforms turn ACH/check spend into card revenue without supplier onboarding.
Primary product
Agentic Portal Payments (AI-powered B2B card-payment execution API)
Founded
2021
Headquarters
Madison Ave, New York City, NY 10016, United States
Team size
10
Industry
Information Services
Sub-industry
B2B payments infrastructure
Offices
1 job at Sunlight
Business model
Stage
Pre-Seed
Total raised
$125K
Latest round
Pre-Seed · Sep 2022
Latest amount
$125K
Sep 2022 · Y Combinator
Leadership
Co-founder & CEO
Co-founder & CPO
Co-founder & CTO
Head of Business Operations
Investors
Pricing
Contact sales / enterprise
Differentiators
Technology
Customers
Estimated revenue
<$5M
Estimated monthly visits
1.1K
PYMNTS · Jul 2026
Profile of Guy Ziv and Sunlight’s agentic B2B payment execution model; argues the real problem is fragmented supplier portals and payment execution, not low card acceptance.
Sunlight · Jul 2026
Company press post summarizing the PYMNTS interview and framing Sunlight as the execution layer for production B2B card payments.
Sunlight (LinkedIn) · Apr 2026
LinkedIn post arguing Sunlight can unlock unmonetized payment volume by optimizing each viable payment for card usage.
Sunlight (LinkedIn) · Jan 2026
LinkedIn post describing how Sunlight helps B2B payment platforms capture card revenue automatically from existing payment flows.
Fiat Ventures · May 2025
Investor spotlight describing Sunlight’s AP-first autonomous Pay-For-You agent and naming partners/customers like BILL, Ramp, Brex, Tipalti, Rippling, Rho, CapitalOS, and Parker.