/Investor DB

1k(x) — 2021 Investments

4 investments dated 2021 · listed companies and verified rows first · show all

AcadArenaacadarena.com𝕏Seed · Dec 2021 · $4M

AcadArena Edu is a platform that gamifies student extracurricular activities, letting students earn rewards for campus events, enter competitions, and connect with peers around shared hobbies such as gaming and anime.

ConsumerEdTechGaming

Ariane Lim(Founder)inKevin Hoang(Founder)Justin Banusing(Founder)

Co-investorsBlockchain CapitalBuko VenturesEmfarsisHashedHustle FundITERATIVE+6 more

Evercleareverclear.orgSeries A · Jul 2021 · $12MDefunct

Everclear was a cross-chain settlement and clearing protocol that shut down in May 2026 after failing to monetize its volume.

Arjun Bhuptani(Founder)Layne Haber(Founder)Rahul Sethuram(Founder)

Co-investorsBootNodeCoinbase VenturesHTX Ventures (ex Huobi Ventures)Monta Vista Capital1kxHashed+2 more

Rariblerarible.comJan 2021Acquired

Rarible operates an NFT marketplace where users can browse collections and view trading data such as floor prices, sales, and volume.

Crypto & Web3MarketplacesWilmington, US

Alexei Falin(Founder)inSalnikov Alexander(Executive Officer, Director)Alexander Salnikov(Founder)

BoardBrukhman Jake(Director)

Co-investors1kxBollinger Investment GroupCoinbase VenturesD1 VenturesParaFi CapitalParafi General Fund+4 more

Staking Rewardsstakingrewards.comin𝕏Nov 2021 · $3MAcquired

Staking Rewards operates an independent rating platform that grades staking infrastructure providers and DeFi yield protocols on a single AAA-to-D scale focused on downside risk.

Crypto & Web3Data & InfrastructureFintech

Co-investorsCastrum CapitalCoinFundDigital Currency GroupFenbushi CapitalGalaxy VenturesNxGen+1 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.