Company 37 of 50 in our series on the most interesting companies in Bitcoin's history: @Anchorage, the first federally chartered digital asset bank in the United States. @diogomonica and @nathanmccauley were the security leads at Docker when they realized in 2017 that the industry's core unsolved problem was cryptographic key management, their specialty. They launched institutional custody in 2019, raised a Series B with a strategic investment from Visa, and signed clients like Polychain, Paradigm, and a16z. The milestone came in 2021: the first federal bank charter granted by the OCC to a digital asset company, a door the whole industry had been pushing on. A February 2026 investment from Tether valued Anchorage at $4.2B. It is institutional plumbing in the best sense, the regulated key infrastructure that lets the largest investors in the world hold the asset, and its charter marked the moment US banking regulation formally made room for Bitcoin. One company from Bitcoin's history, every day, for 50 days. The full interactive record, all four eras and the twenty venture firms that funded them, is at