Primer

Primer was founded as a payment orchestration platform, enabling merchants to connect to multiple processors (Stripe, Adyen, Braintree, Checkout.com, etc.) through a single API and route transactions intelligently. The company evolved beyond simple orchestration toward 'unified intelligence for payments', positioning itself as the data and decisioning layer across fragmented payment infrastructure. With its $100M Series C, Primer is explicitly building AI capabilities on top of its unified payments data, framing fragmented processor data as the core industry problem it solves.