$9M+ ARR, 10,000+ customers. In under 12 months.
We build AI voice agents for small and medium-sized businesses so they never miss a call again and can focus on the work they actually love.
Our AI handles every call automatically. But voice is just the beginning. Our vision: to become the fully automated AI suite for SMBs.
We live ownership. You're end-to-end responsible for your projects and tasks. No politics, few meetings, direct feedback. At fonio you build alongside the smartest and most ambitious people in the scene.
Become part of one of the fastest-growing startups in Europe!
You own how fonio feels on the web. Our website is our most important storefront — and right now it's not where it needs to be. You don't build one nice page, you build a system: a design system and landing page templates that roll out into localized pages across 9+ markets. Continuous optimization, not a one-off redesign. You design and ship - you own the build end-to-end, not a handoff to engineering. We're building an AI operating system for SMBs - people should feel that on the website.

fonio is building the AI communication suite for small and medium businesses; so no call goes unanswered, no lead gets lost, and no customer is left waiting.
What we do
SMBs lose business every day to missed calls and slow responses. fonio puts AI on the front line of customer communication — handling calls and messages automatically, 24/7, without adding headcount.
Our products
→ AI Phone Agent — answers, qualifies, and routes calls around the clock
→ AI WhatsApp Agent — keeps conversations moving on the channel your customers already use
9,000+ businesses across Europe run on fonio.
Why join us
We're a small team shipping fast from Vienna — building software that thousands of real businesses rely on every day. If you want your work to matter from day one and help define how AI changes SMB operations, fonio is the place.
We're seed-funded, scaling fast across Europe, and hiring across 35+ open roles: from engineering and product to sales and marketing. Come build with us.