· investment-strategies · 1 min read
Blockchange Ventures Leads W3.io Seed, Backs TestMachine $6.5M
Blockchange Ventures led W3.io’s seed round for a Web3 smart layer and backed TestMachine’s $6.5M raise for AI blockchain security.
Blockchange Ventures stayed active across crypto infrastructure in late 2025, leading W3.io’s seed round (Web3 smart layer) and backing TestMachine’s $6.5M raise for AI blockchain security.
Key facts
- Investor: Blockchange Ventures (led W3.io; participated in TestMachine)
- W3.io: Seed round led by Blockchange (Jul 2025); Framework Ventures, Arrington Capital
- TestMachine: $6.5M (Dec 2025) for AI blockchain security; Delphi Ventures, Decasonic
- Firm: Crypto-only, founded 2017 by Ken Seiff
Why this matters
The two deals show Blockchange Ventures backing both protocol infrastructure and blockchain security as it deploys from its newest fund vehicle, opened December 2025.
Sources
- Blockchange Ventures recent investments (Tracxn): https://tracxn.com/d/venture-capital/blockchange/__ZgmPm29iUUqcON478Yh6estdyClUIgUnL5cqn2YLrG4
- Blockchange Ventures investment activity (CB Insights): https://www.cbinsights.com/investor/blockchange-ventures
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