Phase Four Competitors and Similar CompaniesClear all

Phase Four's competitors and similar companies include Apollo Fusion and Revolution Space.

	Phase Four Phase Four is a company that develops electric propulsion systems for satellites.	Apollo Fusion Apollo Fusion is a company that develops electric space propulsion systems.	Revolution Space Revolution Space (also known as Accion Systems) is a company that develops in-space propulsion systems for satellite platforms.
Founding Date	Founding Date 2015	Founding Date 2016	Founding Date 2014
Type	Type Private	Type Subsidiary	Type Private
Tags	Tags Manufacturing & Industrial electronics engines	Tags Manufacturing & Industrial aerospace electronic components engines mechanical components satellite	Tags Manufacturing & Industrial aerospace engines satellite
Locations	Locations Hawthorne, US HQ	Locations Alameda, US HQ	Locations Boston, US HQ
Employees	Employees 407% decrease	Employees 1	Employees 462% decrease
Funding
Latest funding round	Latest funding round $ 26m (almost 5 years ago)	Latest funding round N/A	Latest funding round $ 42m (almost 5 years ago)
Total funding raised	Total funding raised $ 30.7m	Total funding raised $ 18m	Total funding raised $ 68.5m

For sources of this data, please see the company profile

Alameda, US

Apollo Fusion is a company that develops electric space propulsion systems.

Boston, US

Employees

46↓ 2% decrease

Revolution Space (also known as Accion Systems) is a company that develops in-space propulsion systems for satellite platforms.

Funding