Primer, a London-based payments infrastructure provider, has closed a $100 million Series C funding round led by Sofina, marking a significant milestone for the four-year-old fintech firm founded by former PayPal employees.
The round included participation from Peak XV Partners, Balderton, Accel, ICONIQ, Tencent, and Speedinvest, demonstrating strong international investor confidence in the company’s vision and execution. This substantial capital injection will accelerate Primer’s expansion into the US market whilst simultaneously advancing the artificial intelligence capabilities of its Primer Companion agent.
Solving the Payments Stack Challenge
Primer provides enterprise e-commerce merchants with a unified platform to manage their entire payments infrastructure, enabling them to connect and control multiple payment service providers through a single interface. This approach addresses a persistent pain point for large retailers and online businesses that juggle numerous payment processors, each with separate integrations and management systems.
The company’s core offering simplifies what has traditionally been a complex, fragmented operational challenge. Rather than managing direct relationships with individual payment providers, merchants can leverage Primer’s centralised platform to optimise their payment strategies, reduce costs, and improve conversion rates across different channels and geographies.
AI-Driven Future
With the new funding, Primer intends to substantially enhance its Primer Companion agent, an AI-powered tool designed to automate and optimise payment decisions across merchant operations. Gabriel Le Roux, CEO and cofounder, outlined the company’s strategic vision, stating that “in the next few years, every payment decision in a large business will be initiated, optimised or audited by AI.”
This statement reflects broader industry trends towards intelligent automation in financial operations, where machine learning systems can analyse transaction patterns, predict payment failures, and recommend optimal routing decisions in real time.
American Ambitions
A critical element of Primer’s growth strategy involves significant expansion into the United States market. The company plans to hire up to 50 additional staff members as part of this push, building out sales, engineering, and customer success teams to serve American enterprises. Management has set an ambitious target to generate more than one-third of total business revenue from the US market by 2028, underlining the importance of this geographic expansion to the company’s long-term trajectory.
European Fintech Momentum
Primer’s substantial Series C raise reflects the continued vitality of the European fintech ecosystem, particularly in the payments infrastructure sector. British startups in this space have increasingly attracted global capital, with investors recognising the technical expertise and problem-solving approaches emerging from London’s financial technology community. As European fintechs increasingly pursue American expansion, rounds like Primer’s demonstrate that established investors view UK-founded payment platforms as competitive internationally, capable of challenging incumbents in mature markets.