| 2018 | 30 Jahre RHG Jubiläum Jubiläumsfeier mit Mitarbeitern, Kunden, Lieferanten und Freunden des Hauses 1. Platz bei ALC Award NÖ 2018 |
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| 2017 | Rezertifizierung nach der neuen Norm ISO9001:2015 Hallenerweiterung um 430 m², 35 Mitarbeiter |
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| 2013 | 25 Jahre RHG Jubiläum, 32 employees |
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| 2012 | Recertification according to ISO 9001, 31 employees |
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| 2010 | Expansion of the production hall by 460 m², 30 employees |
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| 2008 | 20 years RHG anniversary celebration, 30 employees |
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| 2003 | Move to the new production building in January 2003: which includes additional offices, meeting rooms, small-parts and outdoor storage: 260 m2 office space, 550 m2 production area, 700 m2 storage area 30 employees |
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| 2000 | Certification according to ISO 9001 Move to the new office building in July 2000: 560 m2 office space, 400 m2 production area 28 employees |
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| 1997 | Foundation of the Robert Hörtner Holding GmbH 20 employees |
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| 1995 | Foundation of the Robert Hörtner Personalberatung GmbH office is enlarged by 60 m2 14 employees |
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| 1994 | Renting of an additional 400 m2 in a neighbouring hall 10 employees |
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| 1993 | Move to the newly-erected business park in St. Valentin 160 m2 for office and production 7 employees |
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| 1988 | Foundation of the Robert Hörtner GmbH on 11.4.1988 by Mr Robert Hörtner 3 employees, office and production in his own private house |
