The D.I.A. Institut für Umweltanalytik, based in Diez an der Lahn, specializes in the testing of air filters. The company provides services in the areas of analysis, evaluation, and certification of filter performance, with a specific focus on particle separation. The management is conducted by Gerlinde Weyl-Drache. The company is a small company under § 267 (1) HGB and is therefore not required to publish a profit-and-loss statement.
Die Prüfung von Luftfiltern einschließlich Analyse, Bewertung und Bescheinigung von Filterleistungen, insbesondere für den Bereich Partikelabscheidung.
Converted using the official Destatis and Eurostat correspondence tables; ISIC Rev. 4 is the United Nations' international industry classification.
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Source: German Commercial Register (Handelsregister) Montabaur Local Court, HRB 4237 (as of 1 November 2026)
| Name | Type | City |
|---|---|---|
| Kevin Drache | Geschäftsführer(in) | Hahnstätten |
| Norbert Fischer | Geschäftsführer(in) | Dreieich |
Source: German Commercial Register (Handelsregister) Montabaur Local Court, HRB 4237 (as of 1 November 2026)
| Date | Event Type | Event |
|---|---|---|
| 01.04.2020 | Company Name Change | DIA Prüflabor für Luftfilter GmbH |
| 01.04.2020 | Business Purpose Update | Geändert, nun: Die Prüfung von Luftfiltern einschließlich Analyse, Bewertung und Bescheinigung von Filterleistungen, insbesondere für den Bereich Partikelabscheidung. |
| 01.04.2020 | Gesellschaftsvertrag amended | Gesellschaftsvertrag |
| Date | Type | Change | Total Capital |
|---|---|---|---|
| 19.09.2005 | Share Capital Set | — | 25.600 € |
Source: German Commercial Register (Handelsregister) Montabaur Local Court, HRB 4237 (as of 1 November 2026)
| Year | Revenue | Profit | Balance | Employees |
|---|---|---|---|---|
| 2007 | small company1 | €14,075 | €75,704 | — |
| 2006 | small company1 | -€72 | €72,063 | — |
| 2005 | — | -€17 | €80,382 | — |
1 Small companies are not required to publish a profit-and-loss statement (§ 326 (1) HGB). The figure shown is the statutory ceiling under § 267 HGB where the balance-sheet total makes it binding — a company may exceed at most one of the three size criteria.
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Source: German Commercial Register (Handelsregister) Montabaur Local Court, HRB 4237 (as of 1 November 2026)
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