Helix Competitors and Similar CompaniesClear all

Mainstream Engineering's competitors and similar companies include Rolls-Royce and General Atomics Europe.

	Mainstream Engineering Mainstream Engineering is a designer and manufacturer of thermal control and energy conversion systems.	Rolls-Royce Rolls-Royce Holdings is a company that develops power and propulsion products.	General Atomics Europe General Atomics Europe (GAE) is a company that specializes in the business areas of aeronautics, infrastructure, and sustainability.
Founding Date	Founding Date 1986	Founding Date 1884	Founding Date 1992
Type	Type Private	Type Public	Type Subsidiary
Tags	Tags Manufacturing & Industrial electronic components electronics engines	Tags Manufacturing & Industrial electronic components electronics engines vehicles	Tags Manufacturing & Industrial aerospace batteries infrastructure sustainability vehicles
Locations	Locations Rockledge, US HQ	Locations London, GB HQ Grâce Hollogne, BE São Paulo, BR Montréal, CA Peterborough, CA Beijing, CN Beijing, CN see more	Locations Dresden, DE HQ Berlin, DE
Employees	Employees 1301% increase	Employees 43,162	Employees 1,000
Financial
Revenue (est.)	Revenue (est.) N/A	Revenue (est.) £21.2b (FY, 2025)	Revenue (est.) €17m (FY, 2024)
Gross profit	Gross profit N/A	Gross profit £6.9b (FY, 2025)	Gross profit €11.1m (FY, 2024)
Net income	Net income N/A	Net income £5.8b (FY, 2025)	Net income €9.9m (FY, 2024)
Funding
Total funding raised	Total funding raised $ 28.3m	Total funding raised $ 12m	Total funding raised N/A