Tessl
Tessl is an artificial intelligence company in London, United Kingdom, founded in 2024. It has raised $125.0M across 1 round, most recently a $125.0M Venture Round in March 2025.
The package manager for agent skills and context.
- Headquarters
- London
- Employees
- 11–50
- Founded
- 2024
- Business Model
- B2B
- Website
- tessl.io
- Total Funding
- $125.0M
- Last Round
- $125.0M Venture RoundMar 2025
- Rounds
- 1
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
Indexed holds 1 funding round for this company. The full record is or through the API.
About
Tessl is a package manager and agent enablement platform that lets engineering teams find, install, version, and evaluate the skills and context that coding agents rely on. It ensures AI coding agents behave consistently across tools and projects by bringing npm-like lifecycle management to agent capabilities. Tessl's registry allows developers to share and distribute vetted agent skills for use with Claude, Cursor, and other coding agent tools.
Summary
It lists 11–50 employees. It has raised $125.0M in total across 1 round, most recently a $125.0M Venture Round in Mar 2025.
Tech & App Stack
8 technologies & apps tracked
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Funding History
Mar 2025
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