Peter Kütemann founded Dietsmann in the Netherlands in 1977. His enterprise started as a technical assistance company serving the oil and gas companies operating in the Dutch sector of the North Sea. At that time these companies employed full-time technical personnel for operation and maintenance services. Only in exceptional cases was highly specialized work subcontracted.

Oil companies gradually realized that outsourcing would make them more flexible and enable them to operate more cost-effectively. An increasing number of functions, not considered business-critical, were outsourced. Peter Kütemann was the first to create a workable proposition for outsourcing maintenance without losing control of one’s assets.

Dietsmann expanded rapidly and opened its first international office in Aberdeen early in 1982. Later that year Dietsmann France S.A. was established to focus on the Francophone markets. In 1987 Sudmarine in Marseilles was acquired. This company had a substantial mechanical maintenance business and a well-established French spare parts procurement capability.

In 1989 Dietsmann acquired Setram, a company in the southwest of France with extensive capabilities in the electrical and instrumentation fields and a well-established contract base within the French oil industry. Setram’s branches in Gabon and the Republic of Congo further strengthened Dietsmann’s African presence. The mechanical, electrical and instrumentation capabilities in these countries were merged to create the world’s first multidisciplinary maintenance services company in this sector. This new concept proved advantageous in securing Dietsmann’s first integrated Operation & Maintenance contract from Elf.

Following this success Dietsmann formalized its Integrated Operation & Maintenance (IOM) concept, which became yet another innovation in maintenance contracting. Its ‘shared objectives’ contracting format allowed Dietsmann’s clients to virtually exit day-to-day maintenance operations while remaining in control of their assets’ performance.

In 1996 Comerint was acquired from Italy’s ENI Group. It had a new, but complementary, range of products, markets and clients. Comerint, as Snamprogetti’s main operations service company, was firmly established on the Italian industrial scene. With its focus on services to the refining and petrochemical industry and specialized services in the fields of training and technology transfer, technical assistance and operation and management systems, Comerint strengthened the Company with new regional establishments in Nigeria, Libya and Saudi Arabia.

Dietsmann’s unrelenting focus on its core activities and on the quality of its services has resulted in it becoming the largest independent company specializing in Operation & Maintenance services and Maintenance Engineering & Inspection for continuous-production plant in the oil & gas, conventional and nuclear power generation and mining industries.

In August 2017 Dietsmann acquired 97.5% of the shares of Energoremont Holding in Bulgaria. With Energoremont, Dietsmann not only took control of the largest maintenance company in Bulgaria, but also acquired access to the nuclear and conventional power and mining sectors in the Balkan Peninsula and Eastern Europe.

Dietsmann sees great potential for expansion in Bulgaria and the Balkan countries and will focus on the further development of DietsmannEnergoremont’s core activities – the maintenance, optimization and modification of power generating, refinery and mining facilities, including the introduction and application of new technologies in training, monitoring and inspection. The name of the company was changed to DietsmannEnergoremont in November 2017.

Dietsmann is well positioned to maintain its leading position thanks to its unmatched base of satisfied clients, its experience and expertise and its optimal employment of local resources. This combination ensures the provision of world-class plant Operation & Maintenance plus, at the same time, the creation of good employee relations and local development.

Dietsmann not only serves many international and national energy companies worldwide, it also operates and maintains production plants in the oil & gas, conventional and nuclear power generation and mining industries. The power plants that Dietmann maintains have a combined installed capacity of over 15 Gigawatts of both gas and steam turbine-driven power units.

Dietsmann currently employs more than 6,000 people and has a local presence in more countries in Europe, Africa, Asia and South America than any of its competitors.

Dietsmann is an independent, privately held company and has no plans to change this. Dietsmann is not affiliated with any manufacturer or construction engineering firm and, unlike some other providers of ‘independent’ maintenance services, does not use its services as an outpost for manufacturing and selling spare parts or upgrades.
In 2017 Dietsmann’s total revenue is of EUR 310 million (2016: EUR 325 million).

Dietsmann has always and will always put its clients and their objectives first, but will never compromise the safety of people and the environment or the quality of its services. Dietsmann has always and will always operate in a way that reflects its corporate culture, a culture that includes the ethics values of integrity, respect, loyalty, efficiency and transparency.