Tendrils has raised $30 million in a funding round led by Benchmark. The Cambridge-based startup is building a general-purpose processor with thousands of parallel cores. The UK Sovereign AI Fund and Visionaries Club also joined the round.
Funding details
Benchmark general partner Jack Altman has joined the board. The round includes FR8, Antimatter, Cloudberry, Conviction, Embassy Ventures, SV Angels, and several angel investors. Tendrils has not disclosed its founders, headcount, or any earlier funding history.
Rethinking the CPU
Tendrils was founded in Cambridge in 2026. The company argues that current CPUs are constrained by cache coherency protocols and reorder buffers. It wants to eliminate shared mutable memory and linear instruction streams.
The Vine language
Tendrils is also developing Vine, an open-source programming language for parallel-first chips. Vine uses interaction nets, where local rules run in parallel without locking. The language remains experimental.
Tendrils lists four team members on its website. The company says future chips will require close collaboration between hardware and software engineers. It is inviting people who share that view to consider joining.