Firstbase is an all-in-one startup operating system designed to simplify the process of launching, operating, and growing a US business. It caters to founders globally, providing a comprehensive suite of tools and services to manage various aspects of a company.
Key Features:
- Incorporation (Firstbase Start): Automates the entire company formation process for LLCs or C-Corps, eliminating paperwork and legal complexities.
- Compliance (Firstbase Agent): Manages registered agent services, franchise tax, and annual reports to ensure compliance in every state.
- Mailroom: Provides a premium physical US business address and a virtual mailbox for managing all business mail.
- Accounting: Offers an integrated accounting platform with full-service accrual bookkeeping for tax-ready financials.
- Tax Filing: Facilitates easy filing of state and federal taxes for both C-Corps and LLCs, serving US-based and international founders.
- Payroll Tax Registration: Handles state and city-level payroll registrations, including withholding and unemployment accounts, for hiring across all 50 states.
- Firstbase One: A bundled package including Mailroom Premium, Agent Autopilot, Accounting, and Tax Filing services, offering significant savings.
- Rewards and Perks: Access to over $350,000 in perks from partners for banking, payments (e.g., Stripe fee waiver), equity management (Carta integration), and legal services.
- Automation: Emphasizes saving time and money through automated processes, making it faster and more accurate than traditional services.
- Global Support: Provides 24/7 global customer support, trusted by founders in 188 countries.
- Free Tools: Offers free resources like a Business Name Search, Headcount Planning Calculator, Incorporation Checklist, and Mission Statement Generator.
Use Cases:
- Entrepreneurs looking to easily incorporate a new business in the US.
- Founders needing comprehensive compliance management for their company.
- Businesses requiring a physical US address and virtual mail services.
- Startups seeking integrated accounting and tax filing solutions.
- Companies expanding their hiring across different US states and needing payroll tax registration.
- Founders looking for a single platform to manage all their business operations efficiently.

