The Series A round was led by Accel with participation from Balderton, SpeedInvest, Seedcamp, and RTP Global.
Share allotment filed at Companies House
Primer provides a unified infrastructure layer for global enterprise payments, helping merchants manage transactions across multiple processors and tools.
Primer has secured £14m in a Series A funding round led by Accel. Existing backers Balderton, SpeedInvest, and Seedcamp participated alongside new investor RTP Global, bringing the company total funding to £17.8m.
The capital will be deployed to support international business development and scale the company remote-first engineering and product organisation. The platform connects payment service providers and other stack services via a unified API and workflow engine.
Use of funds
- 01Expand into international markets
- 02Grow the team


