( Repair, before replacement. )

Notes From Fettle

Vibrant green liquid texture with swirling patterns and suspended air bubbles — photo by James Lee on Pexels

June 18, 2026

Scaffold, Not Splint

  • Lab Notes
  • Method

When we describe our work on load-bearing cartilage to people outside the lab, the same question arrives first: “So you grow spare parts?”

Coverage Beyond The Lab

April 29, 2026

Anya Sørensen on The Long Bench

The Long Bench

Close-up of water droplets on green glass forming an abstract pattern — photo by Valentin Ivantsov on Pexels

February 11, 2026

Fettle raises a Series A to widen its tendon programme

Bench Memo

A woman wearing headphones recording a podcast at a studio microphone — photo by cottonbro studio on Pexels

Everything We’ve Written

February 11, 2026

Our Series A

We’ve raised £34.6M to date, we are building repair scaffolds for load-bearing cartilage, and we are hiring.

The Fettle Team

Detailed shot of moss on a forest floor with warm sunlight behind — photo by Johannes Plenio on Pexels

October 7, 2025

Milestone Paper I

Recovery of mechanical load tolerance in engineered ovine meniscal tissue after twelve weeks

The Fettle Team

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August 19, 2025

Problem Statement and Roadmap

Why we think repair beats replacement.

The Fettle Team

May 6, 2025

Founder Letter

A letter from Anya and Tomas

Portrait of Anya Sørensen — photo by Jake Nackos on Unsplash Anya Sørensen & Tomas Weill

Wondering about… our bench, our roadmap, or the team? Just send us a note! Write to us here!