About Jörss - Blunck - Ordemann

Engineering office for planning and testing structural and engineering structures as well as foundation structures for offshore wind turbines



Jörss - Blunck - Ordemann GmbH is a planning and engineering office in the construction industry with over 55 years of history. It is active in the preparation and examination of structural planning in the areas of building construction, civil engineering / civil engineering and offshore structures as well as in property planning and structural supervision.

While the areas of building construction and civil engineering have been represented since the beginning, the field of activity offshore structures in the field of renewable energies will be expanded with the entry of Dr. Lüddecke 2014 covered with.

With over 45 engineers and other employees, the engineering office is well positioned for the various tasks from draft to implementation planning as well as testing and construction supervision.



Horst-Ulrich Ordemann

Owner and managing director of the engineering office Jörss - Blunck - Ordemann GmbH. Graduated civil engineer specializing in structural engineering; Approved as a test engineer for structural engineering (steel construction and solid construction) and as an EBA tester for railway bridges; Active in civil engineering since 1980.

Full vita

Mr. Ordemann completed his civil engineering studies with a specialization in structural engineering at the TU Braunschweig in 1980 with a diploma. He then worked for the construction company Dyckerhoff + Widmann AG in the technical office, in the calculation department and in construction management until 1987. Then Mr. Ordemann moved to the engineering office Jörss + Blunck and became a partner in 1990. In 1993, Mr. Ordemann was approved as a test engineer for structural engineering in the fields of solid construction and steel construction and in 1995 as a test engineer for structural engineering and bridge construction at the Federal Railway Authority; In 2001, he was appointed state-approved expert for structural testing tasks. Mr. Ordemann works on a voluntary basis in the Chamber of Engineers Construction and in the Association of Test Engineers for Structural Analysis, here a. as a member of the technical committee (commission) of the states of Lower Saxony, Bremen and Hamburg as well as the technical coordination committee of the federal association.

Dr. Falk Lüddecke

Owner of the engineering office Jörss - Blunck - Ordemann GmbH; approved as a test engineer for structural engineering; active in planning in the field of civil engineering since 2002.

Full vita

Mr. Lüddecke completed his studies at the TU Dresden at the Faculty of Civil Engineering with a diploma. During the subsequent doctorate in the field of upgrading existing steel bridges, Mr. Lüddecke gained further knowledge in the field of fracture mechanics and the fatigue behavior of steel components. In addition, the training to become a welding engineer was completed. During the doctoral period, which was completed in 2006, and afterwards, Mr. Lüddecke gained further knowledge in the construction of engineering structures in solid construction and steel construction. In the period from 2006 to 2009, Mr. Lüddecke was partly testing and setting up in a well-known Berlin engineering office and also worked at BAM (Federal Institute for Materials Research and Testing) in the context of BSH-side reviews of the statics of various offshore wind farms submitted for approval.
In 2009 there was a move to Bremerhaven to the engineering office tkb. GmbH, which is active in the planning of foundation structures for offshore wind turbines. Here, Mr. Lüddecke built up the statics department and became managing director of tkb GmbH in 2010.
In the course of further development, Mr. Lüddecke moved to the engineering office Jörss - Blunck - Ordemann as owner and managing director in 2014. In 2016, Mr. Lüddecke was appointed test engineer for structural engineering (solid construction and steel construction).
Mr. Lüddecke is involved in various DIN 18088 working groups and in the updating of existing standards, such as the BSH standard.

Frank Heitmann

After completing an apprenticeship as a craftsman, Mr. Heitmann began studying civil engineering and graduated in 2007. In parallel to his testing and installation work in structural and civil engineering during his first job in a Berlin engineering office, he took a further postgraduate course to deepen his knowledge at the HTW Dresden and graduated in 2010.

Full vita

With the subsequent training to become a welding engineer and the professional change in 2011, he specialized in the field of renewable energies at sea. Since then his focus has been on the design, dimensioning and technical management in the context of the implementation of offshore substation projects. Mr. Heitmann is a factual strategist and quick decision-maker. Recognizing complex relationships, dividing them up in an editable manner and delegating them sensibly are among his most important talents. He started at Jörss-Blunck-Ordemann GmbH in 2014. In 2018 he received the individual power of attorney for our company.

Walid Al Otaibi

Mr. Al Otaibi, born in Kuwait, started his studies in civil engineering in structural engineering in 2005 at the University of Kassel. During various stays abroad, he was able to gain his first experience in the planning and construction of large engineering structures. He was involved in the construction of several hundred meter high skyscrapers in various megacities on the Persian Gulf.

Full vita

Since his entry into the offshore industry in 2011, he has been involved in the design, dimensioning and construction of foundation structures in offshore wind, and in the meantime his field of activity has even extended to the Southeast Asian region. With his multicultural background, he is considered a real communication talent. This means that he acts as a link to our customers on an international level. He joined Jörss-Blunck-Ordemann GmbH in 2014, meanwhile he is Head of Offshore Structural Department, and in 2018 he received the individual power of attorney for our company.

Company history


– 1963

Founding of the engineering office "Jörss +
Blunck" by Horst Jörß and Hans Blunck

Appointment of Mr. Jörß as exam engineer for structural analysis in the fields of solid construction, steel construction and timber construction
new work area: inspection of construction objects

The office moves to Isestraße

1972 –
Exam Engineer

– 1987

Entry of the current owner
Horst-Ulrich Ordemann

Horst-Ulrich Ordemann becomes a partner
new name: Jörss - Blunck - Ordemann

1990 –
Company name

– 1993
Exam Engineer

Mr. Ordemann also becomes a exam engineer for structural engineering
in the fields of solid construction and steel construction

Mr. Jörß and Mr. Blunk are leaving the company
Mr. Ordemann is initially the sole owner

2002/2012 –

– 2014

Entry of Dr.-Ing. Falk Lüddecke joined the company
as co-owner and managing director

Opening of the new office in Berlin

2015 –

– 2016

Jörss - Blunck - Ordemann GmbH is a certifier and
test expert according to BSH standard construction for
Offshore wind structures recognized

Mr. Lüddecke becomes the exam engineer for
Structural engineering for solid construction and
Steel construction appointed

2016 –
Exam engineer

– 2017

Opening of the new office in Osnabrück

Appointment of two authorized signatories -
Walid Al Otaibi and Frank Heitmann

2018 –
Authorized signatories

2019 –
Location manager Berlin

Appointment of location manager for the Berlin office
Dschingis Amin

The Hamburg office moves to Kaiser-Wilhelm-Straße

2019 –

– 2022

New location in Leer, formerly OWT Wind Technologie

With the strong roots in Hamburg, Germany is the
Jörss-Blunck-Ordemann GmbH now active worldwide.

Guiding principles



We see it as our top priority to offer competent consulting and engineering services on the market and to provide them with the highest possible quality. All activities are subordinate to this goal.


Looking to the future, we also see our duty in the sustainability of our actions and actions. Our office is therefore particularly active in the field of renewable energies.

Customer satisfaction

The highest possible quality means first and foremost error-free advisory and technical services that comply with the rules of technology, the state of the art or, if necessary, the state of the art. We want to achieve the greatest possible customer satisfaction and win our customers for long-term cooperation.

Cooperation and openness

Compliance with ethical and moral values determines our actions in the provision of our services. We strive for a high degree of partnership, cooperation and openness in relationships with our business partners and employees and can expect them to behave accordingly. From our point of view, mutual respect and fairness are the basis for fulfilling the tasks ahead.