![Jan Olaf Siebert](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Jan Olaf Siebert
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Profile
Jan Olaf Siebert formerly worked at KraussMaffei Group GmbH, as Chairman-Management Board & CEO from 2012 to 2015, Kelvion Holding GmbH, as President & Chief Executive Officer in 2011, KraussMaffei Technologies GmbH, as Chairman-Supervisory Board, Compañía Europea de Cospeles SA, as Managing Director from 1999 to 2001, Rieter Holding AG, as Head-Business Group Machines & System, GEA Group AG, as Principal in 2011, Deutsche Nickel AG, as Member-Management board from 1999 to 2004, Joh.
Vaillant GmbH & Co. KG, as Principal in 1996, and Vaillant Gmbh & Co. KG, as Product Manager from 1992 to 1995.
Mr. Siebert received his graduate degree from Universität Stuttgart.
Former positions of Jan Olaf Siebert
| Companies | Position | End |
|---|---|---|
| RIETER HOLDING AG | Corporate Officer/Principal | 2018-09-29 |
KraussMaffei Group GmbH
 KraussMaffei Group GmbH Industrial MachineryProducer Manufacturing Manufactures machines and systems for producing and processing plastics and rubber | Chief Executive Officer | 2015-07-26 |
KraussMaffei Technologies GmbH
 KraussMaffei Technologies GmbH Industrial MachineryProducer Manufacturing Manufactures plastic and rubber processing machinery and components | Chairman | 2015-07-25 |
Kelvion Holding GmbH
 Kelvion Holding GmbH Industrial MachineryProducer Manufacturing Manufactures and develops heat exchangers | President | 2010-12-31 |
| GEA GROUP AG | Corporate Officer/Principal | 2010-12-31 |
Training of Jan Olaf Siebert
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
3
1st degree connections
10
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 10 |
|---|---|
Rieter Holding AG
 Rieter Holding AG Industrial MachineryProducer Manufacturing Manufactures motor vehicle parts and textile machinery | Producer Manufacturing |
GEA Group AG
 GEA Group AG Industrial MachineryProducer Manufacturing Provides mechanical engineering and technology services, and manufactures heat exchangers, valves and pumps, refrigeration compressors, and milking machines | Producer Manufacturing |
Universität Stuttgart
 Universität Stuttgart Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
KraussMaffei Group GmbH
KraussMaffei Group GmbH Industrial MachineryProducer Manufacturing Manufactures machines and systems for producing and processing plastics and rubber | Producer Manufacturing |
Deutsche Nickel AG
 Deutsche Nickel AG Other Metals/MineralsNon-Energy Minerals Manufactures and supplies nickel & nickel-alloy materials | Non-Energy Minerals |
Joh. Vaillant GmbH & Co. KG
 Joh. Vaillant GmbH & Co. KG MiscellaneousMiscellaneous Functions as an investment holding company | Miscellaneous |
KraussMaffei Technologies GmbH
KraussMaffei Technologies GmbH Industrial MachineryProducer Manufacturing Manufactures plastic and rubber processing machinery and components | Producer Manufacturing |
Compañía Europea de Cospeles SA
 Compañía Europea de Cospeles SA Other Consumer SpecialtiesConsumer Durables Manufactures as well as distributes coin-blanks | Consumer Durables |
Kelvion Holding GmbH
Kelvion Holding GmbH Industrial MachineryProducer Manufacturing Manufactures and develops heat exchangers | Producer Manufacturing |
Vaillant Gmbh & Co. KG |
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