In 1963 Horst Jörß and Hans Blunck founded the engineering office “Jörss+Blunck”, which was located in the Weidenallee at that time. In 1972 the office moved to Isestraße 6 in Hamburg Harvestehude. In the same year Mr Jörß was appointed as examiner for structural analysis in the fields of solid, steel and timber construction, opening the office to the new business sector examination of civil engineering projects alongside the established sectors building planning and structural design. In July 1987 the present owner Horst-Ulrich Ordemann joined the company. 1990 Mr Ordemann became partner of the company together with the founders Jörß and Blunck and the name changed to Jörss – Blunck – Ordemann. In September 1993 Mr Ordemann received the nomination as examiner for structural analysis in the fields of solid and steel construction and subsequently got approved as structural examiner by the federal railway authority.

After the retirement of Mr Jörß in 2002 and Mr Blunck in 2012 Mr Ordemann leads the office as sole owner.

With the entry of Dr. Falk Lüddecke as co-owner, the company established a new line of business with the design of support structures for offshore wind turbines. Mr. Lüddecke already worked successfully in offshore structures and is now expanding this field at Jörss – Blunck – Ordemann. Since 2016 Jörss – Blunck – Ordemann is an accredited certifier/examiner by the Federal Maritime and Hydrographic Agency (BSH). Also in 2016 Mr Lüddecke became examiner for structural analysis.