Perkins Coie is a law firm firm based in Seattle, Washington that perkins coie is a law firm founded in 1912 and headquartered in seattle, washington. it has roughly 1,060 lawyers across about 21 offices, mostly in the united states plus teams in london, beijing, and taipei. the firm serves clients in technology, life sciences, energy, financial services, and other sectors, and operates a blockchain, digital assets and custody practice advising on cryptocurrency, tokenization, custody, and related regulatory matters. in november 2025 the firm agreed to merge with ashurst; the combination completed in june 2026 to form ashurst perkins coie, a firm with 52 offices, over 950 partners, and about 3,500 client-facing practitioners. They serve clients in US, UK, China, Taiwan. Perkins Coie is listed on The Token Playbook's vetted provider registry at thetokenplaybook.com/registry/perkins-coie.