Our history
| 1984 | The company was founded Founding members:
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| 1989 | Pilot project |
| 1991 | Implementation |
| 1992 | Reorganization – the company transforms into a limited liability company under the name "Dorogi Hulladékégető Kft." (Dorog Waste Incinerator Ltd.) |
| 1993 | Privatization through international tender, with French strategic investor Group SARP INDUSTRIES winning |
| 1994 | New owner: the SARP INDUSTRIES group |
| 1999 | Receives the ISO 14001 certificate |
| 2001 | The company’s new name ("ONYX Magyarország SARP INDUSTRIES Környezetvédelmi Szolgáltató Kft.") emphasizes its relationship to the world’s leading environmental services group |
| 2004 | Implements the OHSAS 18001 Occupational Health and Safety Management System |
| 2006 | Change of name of the owner: Veolia Propreté SARP INDUSTRIES |
| 2007 | Company name change: SARPI Dorog Környezetvédelmi Kft. The company today:
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