All in one Company OS 

Year Founded


Company Size

11 - 50 People

Funding Raised

Not Specified


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Not Specified


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, "" has become what they type into their address bars when they think about incorporating a business.

Profile ID: #327216

Latest Jobs

Editorial Lead

New York

Full Time

$45000 - $55000 yearly

Business Lead

New York

Full Time

$70000 - $100000 yearly

Founders & Leadership

Mark Milastsivy

Mark Milastsivy

Co-founder of

Financials Beta

Business Model: Not Specified

Revenues: Not Specified

Expenses: Not Specified

Debt: Request

Operating Status: Active

Funding Raised: $0

Investment Rounds: 0 Rounds

Funding Stage: Not Specified

Last Funding Date: Not Specified

Frequently Asked Questions

Who are's founders and individuals in key leadership positions? has 1 founders and people in key management positions. They are:
  • Mark Milastsivy
  • How long has been in business? was established in 2019 (4 years in business).

    Is currently hiring?

    Yes, is currently hiring for 20 job positions.

    Visit's Jobs Page to view a list of all open positions.

    Which country is headquartered in? is based in United States.

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