Phase Four
Valuation
$35.1M
2025 Revenue
$11.7M
Funding
$0
Team
34
Founded
2015
How Phase Four CEO Kevin O'Connell grew Phase Four to $11.7M revenue with a 34 person team in 2025.
Phase Four designs, manufactures and services hardware and software systems for in-space satellite electric propulsion, supporting today's missions and enabling the exponential growth of satellite constellations by solving the satellite's costliest problem, the propulsion system.
Last updated
Phase Four Revenue
In 2025, Phase Four's revenue reached $11.7M. Since its launch in 2015, Phase Four has shown consistent revenue growth.
| Year | Milestone |
|---|---|
| 2025 | Phase Four Hit $11.7m revenue in September 2025 |
| 2015 | Launched with $0 revenue |
Phase Four Valuation, Funding Rounds
Phase Four's most recent disclosed valuation is $35.1M.
Phase Four is a bootstrapped SaaS startup. Founded in 2015, Phase Four has grown to $11.7M in revenue without raising any venture capital or outside funding.
As a self-funded SaaS company, Phase Four has built its business with no outside investment.
| Year | Round | Amount | Valuation | % Sold |
|---|
Phase Four Employees & Team Size
Phase Four employs approximately 34 people as of 2026.
Phase Four has 34 total employees in different roles and functions.
| Year | Milestone |
|---|---|
| 2025 | Reached 34 employees (September 2025) |
Founder / CEO
Kevin O'Connell
Kevin O'Connell is listed as Founder / CEO at Phase Four.
Q&A
| Question | Answer |
|---|---|
| What's your age? | - |
| Favorite online tool? | - |
| Favorite book? | - |
| Favorite CEO? | - |
| Advice for 20 year old self | - |
Customers
We do not have customer count information for Phase Four yet.
Frequently Asked Questions about Phase Four
What is Phase Four's revenue?
Phase Four generates $11.7M in revenue.
Who is the CEO of Phase Four?
The CEO of Phase Four is Kevin O'Connell.
How much funding does Phase Four have?
Phase Four raised $0.
How many employees does Phase Four have?
Phase Four has 34 employees.
Where is Phase Four headquarters?
Phase Four is headquartered in Hawthorne, California, United States.
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Source Attribution
Source: all data was collected from GetLatka company research and founder interviews. Revenue, funding, team, and customer figures are presented as company-reported or GetLatka-estimated metrics where the profile data identifies them that way.
Company data last updated .