J. S. Tjalling Tiemstra

Hagemeyer NV distributes electrical parts and supplies. It offers safety and other maintenance, repairs, and operations products and integrated supply services including procurement, logistics, and inventory management services for various electrical and non-electrical products. The company distributes consumer electronics and other branded products in the Netherlands and Australia as well as luxury goods such as watches, fashion products, and cosmetics in Hong Kong, China, Taiwan, Korea, and Micronesia. Hagemeyer was founded in 1900 and is headquartered in Naarden, the Netherlands.

Ballast Nedam NV provides civil engineering, development and construction services. It's products include non-residential, inner-city, smart solutions, international projects, development, concession and innovation. The company was founded in 1877 and is headquartered in Nieuwegein, the Netherlands.

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.

Koninklijke Haskoning Groep BV used to provide consultancy services. The company was headquartered in Nijmegen, Netherlands.

Twentsche Kabel Holding NV develops and sells cable networks and systems related to information and communication technology.

Netherlands Authority for the Financial Markets operates as an independent market conduct authority for financial markets. The firm serves in the area of financial services, capital markets and financial system and supervises the conduct of the entire financial market sector: savings, investment, insurance, loans, pensions, capital markets, asset management, accountancy and financial reporting. The company was founded on 1 March 2002 and is headquartered in Amsterdam, the Netherlands.