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Outsourcing model



The outsourcing of tasks that have been managed internally for years to an external service provider requires a high degree of trust in the outsourcing partner and their qualities.

At Dettmer Rail GmbH, your outsourcing projects,
be they complete or partial services, are in safe hands.
We entrust your project, from the initial idea to completion, to a small team of selected specialists.

Our areas of expertise:

  • Fleet management including takeover of your rental agreements
  • Takeover of your freight contracts, commissioning of haulage partners and simplification of administrative processes, such as invoicing
  • Planning, control and monitoring of wagon scheduling in line with your orders
  • Procurement of haulage services and wagon availability
  • Advice in areas such as wagon technology as well as market and project development

Is it important for you to maintain maximum commercial control? No problem, our open-book model means commercial decisions will continue to be made only after they have been approved.

The success of such a process depends on the dynamic team comprising you and us. You will get to know our team of specialists in an in-depth introduction phase and work together on all operational and commercial processes relevant for implementation.

In this way, a customised outsourcing solution is created for you based on the Dettmer Group’s expertise.

Have we aroused your interest? Feel free to contact us, we look forward to hearing your ideas.


Gert Sieksmeyer
Managing Director

T +49 (0) 40 1813009-51
M +49 172 3791841

Contact for:
Block Train Services | Supply Chain Management | Outsourcing Model

Mr Sieksmeyer is the operational managing director of Dettmer Rail GmbH.
After completing his commercial training as a forwarding agent in Bielefeld, Mr Sieksmeyer studied transport management at the Bremerhaven University of Applied Sciences, graduating as an industrial engineer.
After working for several years as a specialist area manager for rail logistics in a German mineral oil company, he moved to Transpetrol GmbH as a project manager in 1997 and later took over the management of the newly founded ChemOil Logistics AG in Switzerland. After his return in 2002, he was appointed Managing Director of Transpetrol GmbH and in 2011 also assumed overall responsibility for the Rail Logistics Division of VTG AG.

Jan Diercks
Authorised signatory

T +49 (0) 40 1813009-52
M +49 172 3791842

Contact for:
Fleet Management | Block Train Services | Supply Chain Management | Outsourcing Model

Mr Diercks is an authorised signatory of Dettmer Rail GmbH and is responsible for all activities relating to wagons, single wagon transportation and invoicing. This activity is supplemented by the operational management of our block train transportation.
After completing his commercial training as a forwarding agent with a well-known Hamburg forwarding company, Mr Diercks joined DEA Mineraloel AG in 1992. He started his career in Supply & Transport and later took on new responsibilities in Sales, where he was most recently Head of Sales, Petrochemicals. From 2002 to 2013, Mr Diercks was at Transpetrol GmbH, initially with responsibility for the Fleet Management and Block Train Operating departments, and latterly as Divisional Manager with responsibility for group-wide fleet management and European-wide sales and management of liquefied petroleum gas transportation.