Kooiman Marine Group is a cluster of related maritime businesses. The group head is Gebr. Kooiman Holding BV. The directors of Gebr. Kooiman Holding BV are M.B. (Rinus) Kooiman and W. (Wim) Kooiman. The group comprises six companies.
Shipyard Gebr. Kooiman BV in Zwijndrecht, Shipyard Kooiman Hoebee BV in Dordrecht, Shipyard Kooiman Van Os BV in Yerseke, Kooiman Engineering BV in Zwijndrecht, Kooiman Ship Electric BV in Zwijndrecht, Kooiman Ship Interiors BV also in Zwijndrecht.