Primer, a FinTech platform, has revealed a Series C funding round of $100 million at a platform scale in order to improve its AI infrastructure and increase operations in the US more aggressively.
The oversubscribed financing round was led by Belgian investment group Sofina. Also participating were Peak XV Partners and a strong list of returning institutional investors such as Balderton Capital, Accel, ICONIQ Growth, Tencent, and Speedinvest. The fresh injection of cash pushed Prime apart to raise a total of $170m since inception.
Founded in 2020 by Paul Anthony and Gabriel Le Roux, former PayPal and Braintree employees, Primer is based in London and offers a single infrastructure layer for enterprise payments across the world. Primer reduces all of a merchant’s disparate payment processors, acquirers, fraud platforms and digital wallets into one.
The large online merchants are often involved in many different gateways for global sales. However, this multi-processor strategy often creates separate data trails and recurring operational errors. Primer sits across the full transaction lifecycle from checkout to payout, managing over 95% of its clients’ customer payment volumes on average and capturing more than 400 unique data points per transaction. The platform currently processes billions of transactions annually for global brands such as GetYourGuide, Dialpad, Lime, and Printful.
Unlocking the Potential of Autonomous Payment Agents
The fresh capital will primarily fund the technical scaling of Primer Companion, the company’s proprietary, purpose-built AI agent for payments and finance teams. Introduced in late 2025, the tool is currently used by merchants to analyse transaction data, surface performance anomalies, and troubleshoot localised payment declines or backend inefficiencies.
Source: Unsplash
With the Series C funding, Primer will expand the capabilities of Primer Companion to shift from a passive analytical tool to an autonomous execution engine. The platform upgrades will allow the AI agent to run live experiments, dynamically re-route transaction flows to higher-performing gateways, and execute complex payment processing tasks independently within boundaries set by the merchant.
The company emphasises that a unified infrastructure is a mandatory prerequisite for deploying effective artificial intelligence in corporate finance. When automated agents are deployed across fragmented data environments, they are prone to making incorrect operational decisions. By centralising 400 data points per transaction into a single repository, Primer ensures that its AI models operate with the full context required to successfully manage risk and maximise payment authorisation rates.
More News: RADAR Raises $170M, Hits $1B Valuation in AI Retail Push
Funding a Major Push into the United States Market
A significant portion of the $100 million funding round has been earmarked to fuel expansion in the United States, which represents the world’s largest payment market and the company’s most substantial growth opportunity.
Primer’s presence in the region has already established momentum, with annual recurring revenue in the U.S. currently doubling year-on-year. The North American market currently contributes approximately one-fifth of the company’s total revenue pool.
To support the regional push, Primer intends to grow its local team by hiring up to 50 new cross-functional roles. The long-term commercial objective of this geographical expansion is to scale US operations until they account for more than one-third of Primer’s overall global business by 2028.
In addition to its foundational products, Primer will expand its drag-and-drop workflow builder. Using this no-code flow design tool, enterprise product, operations, and finance teams can add new payment options, modify localised transaction rules, or immediately switch fraud providers without engineering or coding.
