# Keep Network

> Decentralized tBTC bridge and Keep protocol — now Threshold Network.

## Why it is interesting

Keep Network bridged Bitcoin to Ethereum via tBTC; Multicoin and Collaborative Fund backed alongside a16z.

## Profile

- **Stage:** growth
- **Status:** private
- **Industries:** crypto-web3
- **Coverage:** full
- **Last updated:** 2026-07-24

## Key facts

- tBTC round (Apr 2020): $7.7M led by Paradigm; Collaborative Fund, Fenbushi participated — CoinDesk
- Prior round (Dec 2018): a16z, Polychain, Draper participated — CoinDesk
- Merged with NuCypher in 2022 to form Threshold Network (T token)

## Investors in our directory

- https://venturecapitaltracker.com/fund/andreessen-horowitz
- https://venturecapitaltracker.com/fund/collaborative-fund
- https://venturecapitaltracker.com/fund/multicoin-capital

## Related articles

- https://venturecapitaltracker.com/2026-a16z-hot-portfolio-companies

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Source: https://venturecapitaltracker.com/startup/keep-network