The Heinrich Hecker Construction Company was founded on 1 April 1949 by Heinrich Hecker, a construction engineer. The young company started with 35 employees (32 skilled craftsmen and 3 salary earners). The first construction equipment and machines were stored at a place at Melkbrink in the town of Oldenburg. The first contracts included some smaller buildings and the machine hall of the peat power plant in Rühle. The time for founding a construction company was ideal concerning the historical background. There was a major housing shortage: each citizen had on the average a living space of 6 square metres.

The young company was developing rapidly. In the year following the foundation it doubled both its turnover and the number of its staff.

The positive development of he company led to the enlargement of the equipment and machine fleet. A storage place was rented along with an office in 1951 at Johann-Justus-Street in Oldenburg.

The office building at Johann-Justus-Way couldn´t meet the requirements of the expanding company for long, thus a decision was made in 1953 about acquiring a commercial property at Elsässer Street. By 1954 the engineer office became an independent division. The company purchased a second excavator and by using a frame leader and a Delmag Dieselbär excavator it was able to execute excavation and pile driving works. It was the first time for the company to cooperate in a partnership: in executing the Weser-Ems-Hall project. The company just turning seven years old expanded from then on not only in Oldenburg where the head office was located but they founded a branch in the town of Bremen.

In the following years the company made major investments in construction machines and equipment which enabled to execute a wide range of projects in structural and civil engineering. In 1962, when the most devastating storm flood of the century happened, the water management office in Brake contracted with the Hecker Company and other consortium members to execute the dam construction in Elsfleth-Lienen.


In 1963 the company started to get involved in large-scale projects in water engineering. The first step was made by the construction of the North Pier in Brake. The company was proud of being the owner of the first steam-powered Menck pile driver.

The storage area at Johann-Justus Street became too small for the ambitious construction company, so an estate was purchased in Tweebälke near Hatten and by 1968 it was turned into a contractor´s yard. Up till now it has been accommodating both the construction machines and equipment and the repair hall of the company.


In 1968 the individual enterprise was turned into a limited partnership with a limited liability company as general partner. Shortly afterwards Heinrich Hecker, the company´s founder and managing partner died at the age of 56. He was succeeded on 1 May 1968 by his son, Detlev Hecker, a construction engineer, as a personally liable partner.


The company continued to expand under the leadership of Detlev Hecker in terms of both region and technical equipment. The branch in Osnabrück was founded after the purchase of the company RAHE Gebr. Bridge Construction and Civil Engineering Company. Due to the oil price shock in 1973 the company was searching for new markets to be active in. The company soon returned to its core business: as a construction service company it has been offering high quality in all its divisions. The company built a new administrative office at 147 Johann-Justus-Street und moved into it just in time for the 25th jubilee of the company in 1974.

The next regional expansion took place in 1977: a branch was founded in Kiebitzreihe, Bundesland Schleswig-Holstein. 12 years later this branch moved to Bad Bramstedt.

Under the new name Hecker Bau GmbH & Co.KG the company has been incorporated into the Depenbrock Company Group with competences focusing on civil and water engineering. The Depenbrock Group is with its annual turnover of €350 million ten times larger than the Heinrich Hecker GmbH & Co. KG and it has currently 995 employees.

Mr. Dipl.-Ing. Karl-Heinrich Depenbrock is shareholder and managing director of the company, Mr. Dipl.-Ing. Uwe Wickmann is the operative managing director. Ms. Hannelotte Hecker is in charge of the human resources management and the employee development at the entire Depenbrock Company Group.