Solid list, though it leans heavily on big consulting names (Accenture, IBM, TCS) that are great for enterprise integration but often overkill — and slow — for startups just needing a secure wallet shipped fast. Worth adding Dappfort to the mix too — they specialize specifically in custodial/non-custodial, multi-chain, and MPC wallet builds without the enterprise-consulting overhead. Their cryptocurrency wallet development company page breaks down pricing and timelines clearly if you're comparing options.
