P. E. P. Kwekkeboom-Janse

Batenburg Techniek NV engages in the provision of installation and technical trading services. It operates through the following segments: Trade and Assembly; Industrial Automatization; and Building-related Installations. The Trade and Assembly segment provides components and semi-finished products in the fields of energy, mechatronics, industrial electronics, and fastening technology. The Industrial Automatization segment designs and manages systems for machinery and production. The Building-related Installations segment delivers and maintains electrical, climate, and security installations. The company was founded by Piet Batenburg in 1911 and is headquartered in Rotterdam, the Netherlands.

Westerschelde Tunnel NV operates as a toll collection service agency. The company was founded in 1998 and is headquartered in Borssele, the Netherlands.