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The AI Native Billing Platform
At Lago, we're on a mission to make billing simpler, more transparent, and more adaptable for SaaS companies. As the leading open-source billing platform, we empower businesses to build flexible pricing models and scale with confidence. We've raised over $22 million in funding from top-tier investors including Y Combinator and FirstMark, reflecting strong confidence in our vision and growth. Our platform has garnered over 9,000 stars on GitHub, a testament to our active and growing developer community. Companies such as PayPal, Synthesia and Mistral.ai choose Lago for their billing. We're a team of ambitious, focused individuals who work together to solve hard problems with excellence and accountability. At Lago, we value reliability and proactivity - we trust each other to own tasks, drive them to completion, and adapt quickly. While we encourage you to try fast and "fail fast", we also expect you to learn fast: make mistakes, but don't make the same one twice. If you're excited by challenges and want to grow alongside a high-performing, supportive team, this is the place for you.
Lago is an open-source billing infrastructure platform designed to support usage-based, hybrid, and multi-product pricing. It provides real-time usage metering, invoicing, entitlements, revenue analytics, and white-label/embedded billing capabilities for platforms and ecosystems, with deployment options including self-hosted and cloud.
Lago offers real-time usage metering, invoicing, entitlements management, and revenue analytics as core capabilities. It supports hybrid pricing models by combining subscriptions, usage-based billing, prepaid credits, and custom contracts, with self-hosted or on-prem deployment and enterprise-grade security. The platform integrates with payments, accounting, CRMs, ERPs, and other tools via an API and a visual interface, enabling embedded white-label billing for platforms and ecosystems across AI, IoT/Telco, and enterprise use cases.
Who it’s for: Engineering teams, fintechs, AI/ML platforms, IoT providers, telco/infrastructure companies, and enterprises needing complex, compliant, multi-model billing across geographies and products.
Hiring/traction evident (enterprise deployments, 700+ customers in year one mentioned), open-source community, API/docs, self-hosted deployments, and enterprise security/compliance emphasis.
Anh-Tho leads the business side of Lago. She genuinely thinks "SaaS is beautiful" and therefore spent 10 years in go-to-market and product led growth roles in B2B SaaS startups. After a stint in consulting at McKinsey & Co, she joined Mailjet (acq. by Mailgun) as Head of Strategic projects. She then launched Weebly (YC W07) in France, before becoming the 1st employee at Qonto, one of the European fintech unicorns. During her tenure as VP Growth, she grew ARR from 0 to dozens of millions.
A 2nd time founder, Raffi is a Growth Product & Data expert, and leads Product at Lago. He led Data Operations at Qonto, one of the fintech unicorns in Europe.
Open-Core Pricing and Billing Engine
AI-Native CPQ & Billing for Modern Pricing Models
