About Sembl

We're building the team-chat product that organisations who care about privacy have been quietly waiting for.

Our mission

Most team chat lives somewhere on a spectrum between "convenient" and "defensible", and usually leans hard towards convenient. Sembl exists to prove you can have both: a chat product that's pleasant to use every day, and end-to-end encrypted, multi-tenant and automatable underneath.

How we work

Small product surface, deep technical foundations. We invest in the parts that make the platform more trustworthy and faster to operate — encryption, real-time, multi-tenant safety, observability — and we resist the temptation to bolt on features that don't move the product towards that goal.

The platform behind the chat

Underneath Sembl sits a multi-tenant, end-to-end encrypted messaging core, a modern real-time calling stack, and a first-class bot surface. Sembl's chat app is the first product on top of that platform. More are coming. If you'd like to build on it too, get in touch.

A BTEC product

Sembl is built and operated by BTEC, an engineering-led software studio. We invest in long-lived, infrastructure-grade products for industries the rest of tech tends to skip. Sembl is one of them.

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