equityflowunderstand the flow and follow it
EquityFlowCompanies › Primer

Primer Y Combinator · Fall 2025

Fintech · London, GB

Unified payments infrastructure layer for global enterprises, spanning checkout to payout with an AI agent for merchants.

AI Product Demos

Founders

Team & hubs

In the network

Shares the most investors with (number = shared investors):

Funding history

DateRoundAmount
May 2026Series C
Primer (London) closed an oversubscribed $100M Series C led by Sofina, bringing the total to $170M, to expand its Primer Companion AI agent and grow in the US.
$100M
Nov 2020Series A
London payments-infrastructure fintech Primer raised about EUR15.5M in a Series A round led by Accel.
$19M

Investors

Tap an investor to see what else they have backed.

Other companies in Fintech

Other companies in GB

Other companies at Series C stage

Explore funding flow on EquityFlow →

Data is community-curated and may be incomplete.