The archive · Developer & Business Tools · Financial decision · 2025
Paid bets AI agents should bill by results, not seats; $21.6M seed, $100M+ valuation
Outreach founder Manny Medina's London startup sells billing infrastructure for AI agents; €10M pre-seed, then $21.6M seed at a $100M+ valuation in 2025.
Paid
What the business is
Paid is a London billing and monetization platform that lets AI agent makers prove value, price by outcome and charge customers for margin saved, replacing seat-based SaaS pricing.
Starting capital：$33.3M total: €10M pre-seed (March 2025) and $21.6M seed led by Lightspeed (September 2025), valuation over $100M.
How it started
Founded in London in 2025 by Manny Medina, who stepped down as CEO of sales-automation unicorn Outreach ($4.4B valuation) in September 2024, with co-founders from Salesforce billing, Palantir and Pleo. The company came out of stealth in March 2025 with a €10M pre-seed.
What happened
In September 2025 Paid closed an oversubscribed $21.6M seed led by Lightspeed, with FUSE and existing investor EQT Ventures, at a valuation over $100M. Medina's thesis: per-user fees don't cover agent makers' model and cloud costs, and "if you're a quiet agent, you don't get paid" — so agents need infrastructure to charge for additional work.
No ending yet — it is still running.
Background
Paid is a London-based startup founded in 2025 by Manny Medina, who previously built sales-automation unicorn Outreach. It does not make AI agents; it makes the billing infrastructure that lets agent makers charge for the value their agents deliver — "results-based billing" — replacing per-seat SaaS pricing.
Medina's argument: per-user fees don't work because agent makers also pay model and cloud providers, and unlimited-use plans can drive them into the red; agents run silently in the background, so without measurement "a quiet agent doesn't get paid." Paid's platform adds value-proof dashboards, outcome-based pricing and per-agent cost tracking.
Paid came out of stealth in March 2025 with a €10M pre-seed and closed an oversubscribed $21.6M seed led by Lightspeed in September at a valuation over $100M, with customers including Artisan and ERP vendor IFS. Lightspeed called the approach unique: most AI pilots fail because nobody can attach value to what agents do.
What has to be true
- Per-seat pricing is structurally wrong for agents that replace seats, so the monetization layer is the bottleneck for the whole agent economy.
- "If you're a quiet agent, you don't get paid" — value measurement is a precondition for agent adoption, not a feature.
- Founder-market fit: Medina built Outreach around sales workflows and watched the seat-based model break as agents replace headcount.
- Billing by margin saved gave Paid a position in the transaction flow instead of competing on agent quality.
What can be applied
When a technology changes the unit of value, the pricing model becomes the bottleneck; the company that builds the measurement and billing layer can own the transaction rather than the agents.
Aftermath
As of the 2025-09-28 announcement, Paid was live with design-partner and SaaS customers including Artisan and IFS, valued over $100M with $33.3M raised, and had not yet reached a Series A. Medina said the goal was to help agents enter the workforce at scale, and Lightspeed expected competition to follow if results-based billing proved out. No later shutdown or acquisition appeared in the sources used here as of 2026-09-02.
Sources
- Paid, the AI agent 'results-based billing' startup from Manny Medina, raises huge $21M seed
- AI Agent Results-Based Billing: Paid Raises $21.6 Million in Seed Funding Round
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