Primer announced a $100 million Series C financing round led by Sofia, with participation from Peak XV Partners and existing backers Balderton, Accel, ICONIQ, Tencent and Speedinvest. The oversubscribed raise is earmarked for expanding Primer’s AI capabilities and accelerating its U.S. go‑to‑market effort, where the company aims to grow revenue to more than one‑third of total sales by 2028.
The Update
Primer’s Series C brings total capital raised to $170 million. The round was led by Sofina, a Belgian investment firm, and included new capital from Peak XV Partners alongside continued support from all prior investors. Primer plans to double down on its proprietary AI agent, Primer Companion, which launched in 2025 and currently assists merchants with complex payment queries and contextual insights. Post‑funding, the company will build “capabilities at scale” to run experiments, optimize performance and enable autonomous operation within merchant‑defined parameters, shifting the tool from advisory to execution mode.
In parallel, Primer is scaling its U.S. presence. The United States already accounts for roughly 20 % of the company’s revenue, with annual recurring revenue (ARR) having doubled year‑on‑year. Primer intends to hire up to 50 roles in the region and target U.S. revenue exceeding one‑third of total revenue by 2028.
Business Context
Primer was founded in 2020 on the premise that fragmented payment data hampers AI effectiveness. The platform now spans the entire merchant payment lifecycle—checkout to payout—capturing more than 400 data points per transaction and handling over 95 % of customer payment volume on average. Clients such as GetYourGuide, Dialpad and Printful process billions of transactions annually through Primer, gaining a “complete and contextual view of their payment flows,” according to the company.
CEO and co‑founder Gabriel Le Roux said, “In the next few years, every payment decision in a large business will be initiated, optimized or audited by AI… the next era of payments can only be built on complete, contextual intelligence.” The statement underscores Primer’s positioning as the unified infrastructure layer required for AI‑driven decision making across payments, fraud tools, processors and acquirers.
Market Signal
The oversubscribed Series C reflects strong investor conviction that a unified, AI‑ready payments layer is a critical infrastructure component. Sofina’s Head of Digital, Jean‑François Burguet, noted that “payments are reaching a structural turning point, with merchants consolidating onto unified infrastructure and AI moving to the heart of every transaction decision.” Peak XV’s Principal Aakash Kapoor added that Primer’s ability to manage “nearly 100 % of payment volume for its clients” provides the depth of context needed for AI agents to make reliable decisions.
Primer’s focus on the U.S. market aligns with the region’s status as the world’s largest payments ecosystem. By targeting a revenue share of over one‑third by 2028, Primer signals confidence in capturing a sizable portion of U.S. enterprise merchant spend, a segment where fragmented data remains a pronounced challenge.
What It Means for Buyers, Banks, and Investors
- Unified Data for AI: Enterprises that adopt Primer gain a single source of truth across disparate processors, acquirers and fraud tools, potentially reducing the risk of AI‑driven mis‑decisions caused by incomplete data.
- Operational Autonomy: The planned evolution of Primer Companion from advisory to execution could allow finance and payments teams to automate routine decisions while retaining merchant‑defined controls.
- U.S. Expansion: Banks and fintech platforms operating in the United States may encounter Primer as a strategic partner for merchants seeking end‑to‑end visibility and AI‑enabled optimization, influencing integration roadmaps and vendor selections.
Key Takeaways
- Primer closed a $100 million Series C round led by Sofina, with participation from Peak XV Partners and all existing investors.
- The company processes billions of transactions annually, capturing over 400 data points per transaction and managing more than 95 % of customer payment volume on average.
- Primer aims to grow U.S. revenue to over one‑third of total revenue by 2028 and will add up to 50 U.S. hires to support that expansion.
FinanceInsyte's Take
Primer’s funding underscores a growing market appetite for a single, AI‑ready payments infrastructure that can reconcile fragmented data sources. While the company’s roadmap to autonomous AI execution is still early, the capital infusion and U.S. hiring plan suggest a concerted push to become a core layer for large merchants. Executives should monitor Primer’s rollout of autonomous capabilities and its ability to meet the “complete, contextual intelligence” promise at scale, as these factors will shape its relevance to banks, fintechs and enterprise finance teams.
Source: Businesswire
