Rotan Managing Director and Authorized Signatory in front of an industrial facilityRotan Managing Director and Authorized Signatory in front of an industrial facility

We are Rotan

We tackle every challenge with total dedication

Rotan – Comprehensive solutions that deliver results

Rotan is synonymous with comprehensive solutions in tank farm and plant construction, as well as in control and measurement technology and cleaning technology. With approximately 250 skilled professionals, we work on cutting-edge technologies, uphold the highest quality standards, and find a solution for every challenge – because our motto is: “Nothing is impossible.” 

Our strength lies in the combination of scale and flexibility. We are large enough to tackle the most challenging projects, yet agile enough to act quickly and efficiently. Through our dedication and expertise, we lay the foundation for sustainable success –—today and in the future.
 

Strong Leadership, Family Roots

Thomas Holzwarth, Managing Director of Rotan GmbH, in front of an industrial facility

Strong Leadership, Family Roots

Thomas Holzwarth has served as the sole managing director of Rotan GmbH since 2020. With a degree in engineering and experience working on major international projects under his belt, the son of co-founder Bernd Holzwarth joined the management team at – and has since been ensuring, with passion and expertise, that Rotan remains prepared for the future.  

In doing so, he can always rely on his executives from a wide variety of disciplines. Together, they drive the continued development of the family-owned business while remaining true to the ideals of an owner-managed company –, looking ahead to constantly readjust the sails for the right course into the future.   

Milestones in a
Successful Development

Historical photo of a company gathering at Rotan featuring management and employees
Historical photo of a company gathering at Rotan featuring management and employees
1987

Rotan was founded in Dannstadt by Messrs. Heil, Hammer, Seegmüller, and Holzwarth as specialists in pipeline construction and tank storage.

Rotan GmbH headquarters in Dannstadt, featuring the company logo and its fleet of vehicles on the premises
Rotan GmbH headquarters in Dannstadt, featuring the company logo and its fleet of vehicles on the premises
1988–, 1991

Construction of the administrative and workshop building in Dannstadt.

Opening of the Leuna branch, headed by M. Wüsthof. 

Historic group photo of the Rotan team from the early days of cleaning system technology
Historic group photo of the Rotan team from the early days of cleaning system technology
1992

Launch of the Cleaning Technology Division under the leadership of Wolfgang Haucke. 

Groundbreaking Ceremony for the Rotan Building with a Commemorative Speech in Leuna
Groundbreaking Ceremony for the Rotan Building with a Commemorative Speech in Leuna
1994–, 1999

Construction of the administration and workshop building in Leuna.

Expansion of the workshop building and renovation of a staff quarters wing in Leuna.

Construction and expansion of an administrative and workshop building for the cleaning technology division. 

Rotan buildings at the Rostock site
Rotan buildings at the Rostock site
2001

Acquisition of Thönnes+Grimus Rostock and opening of the Rostock branch under the leadership of Volker Zimmer. 

Thomas and Bernd Holzwarth –, managing directors and founders of Rotan GmbH –, together at the company’s headquarters
Thomas and Bernd Holzwarth –, managing directors and founders of Rotan GmbH –, together at the company’s headquarters
2013

Holm Herfurth will take over as head of the Leuna branch.

Thomas Holzwarth joins the management team at – Rotan is run by Bernd and Thomas Holzwarth as an owner-managed family business.

Exterior view of the former Rotan headquarters in Gelsenkirchen, featuring its fleet of vehicles and striking architecture
Exterior view of the former Rotan headquarters in Gelsenkirchen, featuring its fleet of vehicles and striking architecture
2014

Acquisition of Geritzmann Rohrleitungsbau and opening of the Gelsenkirchen branch.

Thomas Holzwarth, Managing Director of Rotan GmbH, in front of an industrial facility
Thomas Holzwarth, Managing Director of Rotan GmbH, in front of an industrial facility
2020

Thomas Holzwarth will take over as the sole managing director.

19871988–, 199119921994–, 19992001201320142020

Our Team–: The People Behind the Projects

Rotan employees at a festive company event with festively set tables and stage lighting

Our Team–: The People Behind the Projects

Passion, technical expertise, and the joy of working together –—that’s what drives our team. We put our hearts and full dedication into every project. Each of us contributes our knowledge and skills so that, together, we can achieve great things.

Close to the Customer–—Ready for Action Anywhere

Map of Germany showing the following locations: Rostock, Gelsenkirchen, Leuna, and Dannstadt

Close to the Customer–—Ready for Action Anywhere

With our headquarters in Dannstadt and locations in Rostock, Leuna, and Gelsenkirchen, we’re always close to our customers. And even across state lines, the same applies: We’re there wherever our customers need us—–—flexible and ready to go.

Two employees look out at a lit-up industrial facility at night

Creating Great Things Together

Two employees look out at a lit-up industrial facility at night

Creating Great Things Together

Whether you’re rolling up your sleeves right on the job or applying your expertise behind the scenes –—with us, you’re the focus. You’ll play an active role in shaping the future, continue to grow, and we’ll support you every step of the way—always in a way that suits you and your strengths.


Rotan Pipeline, Tank Remediation, and Plant Construction, LLC

Riedstraße 3
67125 Dannstadt