/Investor DB

Alpha Sigma Capital — Full Portfolio

3 tracked investments · listed companies and verified rows first

Clarke Valveclarkevalve.comin𝕏Series C · Mar 2020 · $10M

Co-investorsClimate InvestmentNew World AngelsOcean Azul PartnersSaudi Aramco Energy Ventures

Splinterlandssplinterlands.com

Decentralized blockchain-based gaming application using non-fungible tokens

Matthew Rosen(Founder)in

Co-investorsAGE CryptoAppWorks VenturesChainfir CapitalG1 VenturesIlluminati CapitalTechMeetsTrader+7 more

Voltagevoltage.cloudin𝕏Feb 2022

Voltage is a Bitcoin and Lightning Network payments platform that lets businesses move Bitcoin and stablecoins with instant settlement at near-zero fees.

Crypto & Web3Data & InfrastructureDeveloper ToolsFintechWichita, US

Graham Krizek(Founder)in

Co-investorsFulgur VenturesGV (Google Ventures)STILLMARKStrategic Cyber VenturesTrammell Venture Partners (TVP)AngelDAO+15 more

Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.