The best startup incorporation tools and services in 2026

Across the most-reviewed options, the market splits between finance-heavy infrastructure, guided legal setup, and fuller back-office operations. Stripe stands out when founders need payments, subscriptions, payouts, and tax tooling baked into product workflows, while Skala targets incorporation, fundraising docs, IP, and contracts. Firstbase.io aims for an all-in-one path spanning formation, compliance, mail, bookkeeping, and tax support.