Startup profile · funding coverage
Primer funding, valuation and investors
Payments orchestration with AI optimization for authorization rates and checkout performance.
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Funding, valuation & investors
Answer-first snapshotLatest funding
Series C
~$100M · May 2026
Latest known valuation
Not publicly disclosed
Total disclosed equity funding
Not publicly disclosed
Excludes debt, grants, acquisitions, secondaries, and IPO proceeds.
Current status
private
growth · London, United Kingdom
Investors in latest funding
Lead: Sofina , Peak XV Partners
Overview
Primer provides payments and checkout infrastructure with an AI layer for routing, retries, tokenization, and autonomous optimization via AI Companion. The London company raised approximately $100M (€86.2M) Series C in May 2026 led by Sofina and Peak XV per The Next Web, with ~€146.6M total raised. US revenue is ~20% with plans for US to exceed one-third by 2028.
Why Primer is interesting
Primer's $100M Series C targets US expansion with US ARR doubling YoY — payments infra wins on auth rates and cost per transaction, not dashboards.
Product & use cases
Unified payments orchestration platform with AI-driven routing, retry logic, and checkout optimization for merchants and payment teams.
- Payment routing optimization across PSPs
- Authorization rate improvement via AI retries
- Merchant checkout infrastructure with autonomous finance ops
Key facts
- Series C (May 2026): ~$100M led by Sofina and Peak XV
- ~€146.6M total raised across rounds
- US ARR doubling YoY; ~20% revenue from US
- AI Companion for autonomous payment optimization
Funding history (newest first)
Competitive landscape
Edge: AI Companion for autonomous payment optimization vs. static routing rules — strong European base expanding US GTM.
Payments orchestration is winner-take-most if reliability proven. Primer competes on auth rates and enterprise reliability; Stripe/Adyen may expand orchestration features.
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Stripe incumbent
Payments incumbent; Primer orchestrates across PSPs.
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Adyen incumbent
Global payments platform; less orchestration-first.
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Spreedly direct
Payment orchestration; similar multi-PSP wedge.
Notable stories
- May 2026 round explicitly funds US GTM — European payments AI pushing stateside.
- Autonomous payment optimization as product wedge vs. dashboard analytics.
Industries
Market / IPO context
Editorial / static context — not a live quote.
Related funding articles
Venture Capital Tracker pieces that cover Primer's financing or category context.
FAQs about Primer
Practical answers founders, operators, and investors typically search for.
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