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Klumpjan Gmbh

Klumpjan is a metal construction company with more than 70 employees.

Construction
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Headquarters
Velen, Nordrhein-Westfalen, GermanySource: RevenueBaseRetrieved October 13, 2026
Employee range
51 to 200Source: RevenueBaseRetrieved October 13, 2026
Founded
1930Source: RevenueBaseRetrieved October 13, 2026
Published list appearances
13 supported appearances ↗Source: RevenueBase lists
The company at a glance

What does Klumpjan Gmbh do?

Klumpjan has manufactured doors, windows and facades for decades. Its products are sought after worldwide.

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

What the business offers

Services & capabilities.

Doors, windows and facades

Klumpjan manufactures high-quality doors, windows and facades using aluminium.

Source: LinkedIn company description · Retrieved October 13, 2026

Custom solutions

Klumpjan develops solutions with stated standards for aesthetics, workmanship, durability and energy efficiency.

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 PREVIEWKlumpjan Gmbh listed #9 on Aluminum formwork manufacturers, September 28, 2026Open the published source list.
Klumpjan Gmbh

#9 Aluminum formwork manufacturers

Snapshot: September 28, 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 19, 2026, September 28, 2026, September 29, 2026 and October 10, 2026. How the company lists are built.

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