Our History

SDEM Started as a French international contractor specializing in industrial installations and hydraulic works

Our Milestones

SDEM’s engineering background spans decades and sectors. As a subsidiary of the French company Société d’Etudes et de Montages, an international contractor specializing in industrial installations and hydraulic works worldwide, Société d’Etudes et de Montages (SDEM) Erectors Nigeria Limited was established in Nigeria in 1981.

After GEC Alstom purchased Société d’Etudes et de Montages in France in 1994 and the company changed its name to GEC ALSTOM SDEM, the Company was now a subsidiary of the GEC Alstom Group.

In order to emphasize its hydraulics business, GEC ALSTOM sold off its stake in the business in 1996, which allowed SDEM Erectors Nigeria Limited to be spun off as a separate entity.

1981

SDEM Erectors Nigeria Limited started as a subsidiary of the French company Société d’Etudes et de Montages, an international contractor specializing in industrial installations and hydraulic works worldwide. It was established in Nigeria in 1981.

1994

GEC Alstom acquired Société d’Etudes et de Montages in France 1994 and the firm became GEC ALSTOM SDEM.

1996

GEC ALSTOM divested from the company leading to the spin off of SDEM Erectors Nigeria Limited as an independent company now owned by the family of the French Managing Director at the time and the original Nigerian shareholder at inception of the Company in 1981.

2004

Global Energy Company Limited acquired majority (90%) shareholding in the Company with the French Family retaining 10% thereby making SDEM a subsidiary of Global energy Company.

2010

Global Energy Company divests from the company and a new investor group backing the management team took over the company.