21.co Revenue and Competitors

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Total Funding



Estimated Revenue & Valuation

  • 21.co's estimated annual revenue is currently $640k per year.(i)
  • 21.co's estimated revenue per employee is $40,000
  • 21.co's total funding is $40M.
  • 21.co's current valuation is $2B. (September 2022)

Employee Data

  • 21.co has 16 Employees.(i)
  • 21.co grew their employee count by 100% last year.
Competitor NameRevenueNumber of EmployeesEmployee GrowthTotal FundingValuation

21.co allows you to replace your public email with an inbox that pays you. You can set up a 21 profile to receive paid messages from people outside your network. You can keep the money you earn, or donate it to charities like Black Girls Code. And you get paid in bitcoin, so it works in any country.



Total Funding


Number of Employees


Revenue (est)


Employee Growth %





21.co News

2022-04-20 - PA detects first case of "High Path" Avian Influenza at Lancaster Co farm

Even more alarming, the infection hit a farm in the middle of poultry country, Lancaster County. “It is a humbling moment for PA agriculture but...

2022-04-20 - Dorset Police finally shut down illegal Easter Sunday rave after 21 hours

An illegal rave with attracted hundreds of people has been broken up by police after around 21 hours. Dorset Police said it “took some time”...

2022-04-20 - Brooklyn man, 21, arrested after 'attacking a woman before riding scooter into a nearby building'

Brooklyn man, 21, arrested and charged with sexual assault after 'shoving a women to the ground and attacking her before riding his scooter into...

2015-11-18 - Mining (And Learning) With The 21 Bitcoin Computer

A few days ago a $400 charge hit my credit card and Amazon notified me that my 21.co bitcoin computer was on its way. Essentially a Raspberry Pi connected with a custom bitcoin-mining ASIC and a heatsink, the computer is one of the most interesting MVPs in modern memory. While you could easily ...

2015-10-08 - Bitcoin Hardware Startup 21 Hires The Top Bitcoin.org Developers, Opens Education Portal

21 is a mysterious Bitcoin hardware and mining startup backed by Andreessen Horowitz that unwrapped its first product earlier this year. A few weeks ago, they unveiled and began pre-selling a computer that has native hardware and software support for the Bitcoin protocol. Co-founder Balaji Srin ...

Company NameRevenueNumber of EmployeesEmployee GrowthTotal Funding