Arrington XRP Capital is a digital asset management firm specializing in blockchain-based capital markets. Founded in 2017 by Michael Arrington, the founder of TechCrunch, and Heather Harde, former CEO of TechCrunch, the firm has invested in over 200 early-stage companies within the crypto ecosystem. Their investment strategy is thesis-driven, focusing on sectors such as decentralized finance (DeFi), infrastructure, and innovative digital assets.

The team comprises seasoned entrepreneurs and executives committed to supporting and accelerating the growth of portfolio companies globally. Notable investments include Arweave, BlockFi, SKALE Labs, and CasperLabs. In 2019, Arrington XRP Capital merged with ByteSize Capital, enhancing its investment capabilities with ByteSize's proprietary tools for navigating the crypto markets, including systems for data ingestion and quantitative backtesting.

The firm is headquartered in Miami, Florida.