DO2 began operations in 1936 under the leadership of its original owner Roland Boulanger. The company was active in the repairs of various industrial equipments and the sales of welding and metal products. Later, one of its main activity was to make dynamite boxes.

Now firmly established, DO2 is known for sale and distribution of welding products, propane equipments and various types of steel. We are also distributors for Air Liquide products for over 50 years.

In 2006, DO2 was bought by four developers specializing in the manufacture of industrial equipments. Much development has since been brought to the original service offering :

Developed the niche of specialized industrial equipment manufacturing under the banner "DO2 industrial";
Implemented an engineering department consisting of two mechanical engineers and four engineering technicians;
Implemented a technical advisory service.

In addition, in a 2007 partnership with four engineers, "DO2 Control" is founded.