After Hamburg’s worst flood disaster in 1962, Dipl.-Ing. Bodo Sellhorn started his first business as a consulting engineer in the field of flood protection. In 1965, together with a partner, he opened his own engineering office. The Schaartorschleuse became his first well-known project and the foundation of today's Sellhorn Group was set.

Dipl.-Ing.Bodo Sellhorn founded Sellhorn Ingenieurgesellschaft mbH to continue his growing business as a consulting engineer. Still today, this company is the core of the Sellhorn Group.

Sellhorn Consult GmbH was founded as the parent company of Sellhorn Ingenieurgesellschaft mbH. Other divisions and companies followed in the fields of building services, real estate and traffic planning. The development of a company-group had begun.

VVB Vierländer Betriebsgesellschaft mbH & Co. KG was founded to manage the hotel and restaurant business of the company’s own property, Zollenspieker Fährhaus, in Hamburg and does so still today.

Dipl.-Ing. Olav Sellhorn was appointed to the management of Sellhorn Consult GmbH, thereby initiating the second generation of the family business.

After 45 years as head of the family business Dipl.-Ing. Bodo Sellhorn passed away. The company remains family-owned and is from now on managed by his son Dipl.-Ing. Olav Sellhorn.

Sellhorn Consult GmbH is renamed as Sellhorn Holding GmbH. The restructuring of the group started with the main goals being the reorganization of the business areas, a more efficient organization and preparing the group for future strategic growth.

In 2010, Sellhorn Middle East SARL was founded in Beirut as the first foreign subsidiary of the Sellhorn Group to offer civil engineering services in the Middle East region.

With the founding of Sellhorn Hafkemeyer GmbH (SH+), the field of project management was established as an independent business area within the group.

The exclusive four-star hotel combines modern hotel comfort and more than 750 years of history at the southernmost point of Hamburg by the Elbe. Project development, planning and financing of the project was carried out within the Sellhorn Group. Admiraliät 56 Grundstücks- und Verwaltungsgesellschaft mbH is the owner of the hotel, while the operations are carried out by VVB Vierländer Betriebsgesellschaft mbH & Co. KG.

With the founding of Sellhorn Africa Consulting Ltd.  in Dar Es Salaam, Tanzania, the Sellhorn Group expanded its international activities and is now also present on the African continent with its full range of services.

Sellhorn Ingenieurgesellschaft, together with Oiltech Group of India, founds the joint venture Sellhorn Technomech Marine and Infrastructure Consult Private Ltd. With this, engineering planning is now offered with a focus on hydraulic engineering and coastal protection within the Indian region.

Acquisition and integration of A.C.E. Ingenieurgesellschaft für Flughafenplanung und Verkehrswesen mbH into the group. The specialised field of airport planning was now strengthened with the addition of the Cologne office.

The Sellhorn Group consists of 18 companies in 14 locations. Sellhorn Holding GmbH, as the parent company, is still today an owner-managed family business.