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Firstbase.io

Firstbase.io

All in one Company OS

Firstbase is building an all-in-one Company OS to help define how founders across the globe launch, manage and grow their businesses. More than 10,000 founders from over 175 countries have used our product, Firstbase Start, to launch their startup. For many founders, "firstbase.io" has become what they type into their address bars when they think about incorporating a business.

Jobs at Firstbase.io

New York, NY, US / Remote
$30K - $60K
3+ years
New York, NY, US / Remote (New York, NY, US)
$60K - $100K
3+ years
New York, NY, US / Remote
$30K - $60K
3+ years
New York
$100 - $130
3+ years
SP, BR / Remote
$30K - $60K
3+ years
Firstbase.io
Founded:2019
Team Size:38
Location:New York

Active Founders

Mark Milastsivy

Founder&CEO of Firstbase.io. Based in NYC.

Mark Milastsivy
Mark Milastsivy
Firstbase.io

Company Launches

Hi YC! I’m so excited to announce the launch of our new product.

Firstbase Agent handles your company's ongoing compliance in every state, so you can focus on scaling.

We are launching with three new plans:

Agent Light ($99/year) – appoint Firstbase as your registered agent in every state where you operate, receive and view notices from the government, and get reminders about compliance events, such as annual reports, franchise tax filings, and more. It’s a better, more automated registered agent product for growing startups.

Need more that just reminders? Meet Agent Autopilot and Agent Payroll!

Agent Autopilot ($299/year) – get everything from Agent Light + put all ongoing filings on autopilot. Firstbase will generate and file your annual reports, franchise tax reports, and more.


Special offer for foreign founders: if you purchase Autopilot, and appoint us as your Agent in the state of incorporation, you will get access to a self-service tool for forms 5472 & pro-forma Form 1120 for FREE! So if you are a foreign-owned US entity with filing obligations in the US, you will be able to file it directly from your Firstbase dashboard!


Agent Payroll ($599/year) – register for payroll in any of the 50 states to hire employees compliantly. Get payroll account numbers. Put ongoing compliance – and all filings – in each of those states on autopilot. 

Agent Payroll also includes a feature called Track (launching in Q1 2023) – we will retrieve all notices, balances and more, directly from your online accounts with each of the states and display them in your Firstbase dashboard.



Sign up as an existing business here: https://www.firstbase.io/agent or use Firstbase Start to launch a new company:)

Also email me with any questions: mark@firstbase.io

PS Each plan will require you to appoint us as your registered agent so we can process filings on your behalf, take care of your compliance, and give you access to all features. If you already appointed someone as your registered agent in one of the states where you are purchasing Agent, we will take care of the change-of-agent paperwork during onboarding, free of charge.