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Company profilehyjack.tech ↗

Hyjack

HyJack is a start-up created in early 2021.

Environmental Services
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Headquarters
Paris, FranceSource: RevenueBaseRetrieved October 13, 2026
Employee range
1 to 10Source: RevenueBaseRetrieved October 13, 2026
Founded
2021Source: RevenueBaseRetrieved October 13, 2026
Published list appearances
19 supported appearances ↗Source: RevenueBase lists
The company at a glance

What does Hyjack do?

HyJack brings together expertise in hydrogen and digital tools.

Based on the company’s public LinkedIn information, supplied through RevenueBase.

What the business offers

Services & capabilities.

Hydrogen sizing and costing tool

Its platform is designed to facilitate hydrogen project prefeasibility and accelerate introductions within the hydrogen ecosystem.

Source: LinkedIn company description · Retrieved October 13, 2026

Hydrogen equipment calculations

The tool streamlines routine calculations for equipment including electrolysers, fuel cells, compressors, storage and methanation.

Source: LinkedIn company description · Retrieved October 13, 2026

Explore the business in context

Company lists.

Supported appearances on published RevenueBase lists, including available memberships beyond displayed rankings.

Positions describe ordering within each source list. See how lists are built ↗

Share your recognition

Embeddable award for your website

BADGE PREVIEWHyjack listed #11 on Green hydrogen consultants, September 20, 2026Open the published source list.
Hyjack

#11 Green hydrogen consultants

Snapshot: September 20, 2026

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Company information

Sources & data notes.

RevenueBase prepared this profile from the company’s public LinkedIn information and RevenueBase company data. These source records were retrieved on October 13, 2026. AI helped summarize these sources, with a separate automated check against the source text completed on November 3, 2026. Directory positions use company-contact counts from separate saved list snapshots dated September 2, 2026, September 15, 2026, September 16, 2026, September 19, 2026, September 20, 2026, September 27, 2026 and September 29, 2026. How the company lists are built.

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