Verified Nov 2026
Batteries & E-Mobility
·
Augsburg, Bayern
·
Since 1997
Quest One is a German manufacturer of proton exchange membrane (PEM) electrolyzers and electrolysis stacks for green hydrogen production. Founded in 1997 under the name H-TEC Systems, the company is headquartered in Augsburg, Bavaria, and has an estimated 200 to 500 employees and an estimated revenue band of $100 to 250 million. It has been a subsidiary of Everllence since 2021 and serves heavy industry, automotive, electric vehicle, and renewable energy sectors. In April 2025, it supplied two PEM electrolysers to Ingenion for a regional mobility project.
Quest One at a glance
Revenue
$100-250M
Est. band
Employees
200-500
Founded
1997
Headquarters
Augsburg, Bayern
Industries
Automotive
Electric Vehicles
Electronics
Construction
Renewable Energy
Industrial Equipment
Overview
Quest One is a German manufacturer of proton exchange membrane (PEM) electrolyzers and electrolysis stacks for green hydrogen production. Founded in 1997 under the name H-TEC Systems, the company is headquartered in Augsburg, Bavaria, and has an estimated 200 to 500 employees and an estimated revenue band of $100 to 250 million. It has been a subsidiary of Everllence since 2021 and serves heavy industry, automotive, electric vehicle, and renewable energy sectors. In April 2025, it supplied two PEM electrolysers to Ingenion for a regional mobility project.
At a glance
Attribute | Detail |
|---|---|
Founded | 1997 |
Headquarters | Augsburg, Bayern |
Employees | 200-500 |
Revenue | $100-250M (estimated) |
Primary capability | Batteries & E-Mobility |
What Quest One makes
Its flagship product is the Modular Hydrogen Platform, an industrial-scale electrolyzer system, and the company also develops and assembles electrolyzers tailored to regional markets.
Products and capabilities described on the company's own site include LED, Turbocharger, Assembly, Emissions, Battery (source: questone.com).
Latest developments
2026-09-07 — Newsroom | News | Quest One (questone.com)
2026-05-20 — Newsroom | Press | Quest One (questone.com)
2026-05-11 — Quest One provides insights into the construction of a large-scale electrolyzer | Quest One (questone.com)
2025-04-08 — Quest One supplies two PEM electrolysers to Ingenion for regional mobility project (renewableenergymagazine.com)
Company details
Quest One is privately held and operates as a subsidiary of Everllence, with an estimated 200 to 500 employees and an estimated revenue band of $100 to 250 million. Quest One was founded in 1997, has an estimated 200-500 employees, and is headquartered in Augsburg, Bayern.
Frequently asked questions
What does Quest One make?
Quest One is a German manufacturer of proton exchange membrane (PEM) electrolyzers and electrolysis stacks for green hydrogen production. Founded in 1997 under the name H-TEC Systems, the company is headquartered in Augsburg, Bavaria, and has an estimated 200 to 500 employees and an estimated revenue band of $100 to 250 million. It has been a subsidiary of Everllence since 2021 and serves heavy industry, automotive, electric vehicle, and renewable energy sectors. In April 2025, it supplied two PEM electrolysers to Ingenion for a regional mobility project.
Where is Quest One headquartered?
Quest One is headquartered in Augsburg, Bayern (1 Alois-Senefelder-Allee, Augsburg, Bayern, 86153).
When was Quest One founded?
Quest One was founded in 1997.
How big is Quest One?
Quest One has an estimated 200-500 employees, with revenue in the $100-250M range (estimated).
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Last verified Nov 2026. Is this your company? Request a correction.
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