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Welysis

Welysis designs, builds, and operates modular chlor-alkali electrolysis plants worldwide.

Chemical Manufacturing
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Headquarters
Santa Cruz De Tenerife, Canary Islands, SpainSource: RevenueBaseRetrieved October 13, 2026
Employee range
11 to 50Source: RevenueBaseRetrieved October 13, 2026
Founded
2019Source: RevenueBaseRetrieved October 13, 2026
Published list appearances
9 supported appearances ↗Source: RevenueBase lists
The company at a glance

What does Welysis do?

Based in the Canary Islands, Spain, Welysis delivers fully engineered, pre-assembled plants for local production of sodium hypochlorite, caustic soda, hydrochloric acid, and chlorine gas. Its technology combines high-efficiency electrolysis systems, modular and scalable plant design, and WIN digitalisation for remote monitoring and predictive maintenance.

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

Who it serves

Welysis supports governments, industries, and water utilities through projects across Europe, Africa, and the Americas.

What the business offers

Services & capabilities.

Plant monitoring digitalisation

WIN digitalisation enables remote monitoring and predictive maintenance.

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

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BADGE PREVIEWWelysis listed #7 on Electrolysis companies, September 18, 2026Open the published source list.
Welysis

#7 Electrolysis companies

Snapshot: September 18, 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 4, 2026. Directory positions use company-contact counts from separate saved list snapshots dated September 15, 2026, September 18, 2026, October 8, 2026 and October 10, 2026. How the company lists are built.

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