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miko.matsumura

managingPartner@gumi.cryptos.capital

Miko Matsumura
miko@mikobits: ~
miko@mikobits:~$ whoami
miko_matsumura
miko@mikobits:~$ cat ~/.bio
Managing Partner @ gumi Cryptos Capital
Built his first neural network in 1990 at Yale Graduate Program in Neuroscience
30 years in Silicon Valley tech
miko@mikobits:~$ ls investments/ | head -3
opensea_unicorn_exit.json
yield_guild_games_unicorn.json
ether_fi_liquid_staking.json
miko@mikobits:~$

From neural networks in 1990 to Web3 unicorns in 2025. Building open source infrastructure that makes the world more fair and innovative. Believes that everybody deserves custom software.

Highlights

Vibe Code
1990
Yale Neuroscience PhD Program
Built 33 parameter back-propagation neural network in C++ on Sun SPARCstation, based on "Learning representations by back-propagating errors" by Rumelhart, Hinton and Williams (Nature, 1986).
1995-2005
Chief Developer Evangelist @ Sun Microsystems
Led Java Programming Language Platform evangelism, fell in love with open source software.
2005-2018
Serial Entrepreneur & Builder
Raised $50M+ in venture capital for dev tools (Gradle) and infrastructure (Hazelcast). Multiple exits: INFRAVIO, webMethods, Db4O.
2018-Present
Managing Partner @ gumi Cryptos Capital
Investing in breakthrough Web3 technologies. Portfolio includes unicorns OpenSea, Yield Guild Games, and emerging leaders in DeFi.
Bio
01/**
02 * Professional Biography
03 * @author Miko Matsumura
04 */
05
06// Miko is a General Partner with gCC Gumi Cryptos Capital, a Silicon Valley investment
07// fund with over $200M in assets including early-stage investments in unicorns like
08// OpenSea, Yield Guild Games, Ether.Fi, Astar, IntoTheBlock and 1Inch Network.
09
10// He built his first neural network in 1990 during his graduate work at Yale
11// Neuroscience–a 33 parameter back-propagation network based on Rumelhart, Hinton
12// and Williams 1986 seminal paper. Miko came to Silicon Valley and fell in love with
13// open source software 30 years ago as chief Developer Evangelist for the Java
14// Programming Language and Platform at Sun Microsystems. Since then he has been
15// building open source software startups in Silicon Valley including raising over
16// $50 million in venture capital for developer platform companies such as Gradle
17// and financial infrastructure companies like Hazelcast and has participated in
18// multiple exits including INFRAVIO, webMethods, and Db4O.
19
20// Miko has been a guest instructor at Stanford, a guest lecturer at Yale University
21// and a speaker at the Wharton School Cypher Accelerator. He has also spoken at
22// blockchain industry events such as Coindesk Consensus, ETH Denver, and is a founder
23// of San Francisco's oldest crypto meetup, Crypto Underground.
24
25// He is a board member or advisor in successful startups like IntoTheBlock
26// (algorithmic trading), LIT Protocol (NFT Access Control), Keyring (ID
27// infrastructure), and The Liberation Institute (mental health). He holds a Master's
28// degree in Neuroscience from Yale University.

Portfolio { Web3 & Infrastructure }

OpenSea Exit
NFT Infrastructure
Premier NFT marketplace enabling digital ownership at scale.
React Ethereum IPFS
Yield Guild Games Unicorn
Gaming DAO
Decentralized autonomous organization for blockchain gaming assets.
Solidity Unity Polygon
1Inch Network Active
DeFi Aggregation
DEX aggregation protocol optimizing DeFi trading routes.
Solidity Node.js Web3
Ether.Fi Active
Liquid Staking
Liquid staking protocol for Ethereum 2.0 infrastructure.
Solidity Ethereum DeFi
Astar Active
Multi-chain Platform
Smart contract platform supporting both EVM and WASM.
Rust Substrate Polkadot
IntoTheBlock Board
Analytics & Trading
Algorithmic trading and blockchain analytics platform.
Python ML Analytics
01/**
02 * Personal Philosophy & Investment Thesis
03 * @author Miko Matsumura
04 */
05
06function buildBetterWorld() {
07 return {
08 consensus: "more consensual",
09 fairness: "fair & just",
10 nonviolence: "respect for individual sovereignty",
11 transparency: "transparent systems",
12 innovation: "breakthrough technologies"
13 };
14}
15
16// "Open Source infrastructure will make the world
17// more consensual, fair, just, accessible, transparent & innovative."

Get In Touch

Interested in discussing Web3 opportunities, neural networks, or investment synergies?