Pieter Hartog

Holding für Versorgung und Verkehr GmbH Bochum operates as a holding company with interests in the electric, water, and waste management sectors. It also manages shareholdings in other companies. The company was founded on November 30, 1981 and is headquartered in Bochum, Germany.

Stadtwerke Bochum Holding GmbH engages in the supply of electricity, gas, water, and district heating. The company was founded on April 13, 1855 and is headquartered in Bochum, Germany.

Energie- und Wasserversorgung Mittleres Ruhrgebiet GmbH is a holding company, which engages in sale and distribution of electricity and water. It specializes in electricity generation and water supply. The company was founded in 1998 and is headquartered in Bochum, Germany.

Skamol A/S develops, manufactures, and markets thermal insulating materials for heat-intensive industries and passive fire protection. Its products are used in a range of industrial kilns and furnaces and as lining in hearth and heating appliances. The major business areas includes aluminum industry, hearth and heating appliances, high-temperature industries, and for fire protection services. The firm utilizes the deposits of the diatomaceous earth known as "Moler", which is originally used for house building and chimney linings. The company was founded in 1912 and is headquartered in Nykobing Mors, Denmark.

ROXUL, Inc. manufactures stone wool insulation. It offers walls, roofs, attics, floors and ceiling, fire protection, sound absorption, and core solutions. The company was founded in 1988 and is headquartered in Milton, Canada.

Rockwool (India) Ltd. produces stone wool insulation in India. Its products include ROCKINSUL RB slabs, building rolls and lamella. The firm’s solutions include building insulation solutions, industrial insulation solutions and sustainability. The company is headquartered in Hyderabad, India.

Part of ROCKWOOL A/S, ROCKWOOL Peninsular SA is a Spanish company that manufactures and supplies insulation products. The company is based in Caparroso, Spain.

ROCKWOOL France SAS manufactures insulation wool for fire protection and waterproofing. It offers steel flat roofs, acoustic ceilings, panels, facades, spiral bindings, industrial solutions, noise control, energy efficiency, engineered fibers, and accessories. The company was founded on February 24, 1978 and is headquartered in Paris, France.

Stadtwerke Bochum Netz GmbH is a private company that provides energy services, including electricity, gas, and water, to the Bochum region. The company is based in Bochum, Germany. The German company's focus is on providing safe and reliable energy to their customers. Holger Rost has been the CEO of the company since 2011.

ROXUL ROCKWOOL Technical Insulation Middle East FZE engages in the provision of technical insulation solutions. It offers a range of techniques and systems for the thermal and fire safe insulation of industrial & building applications. The company is headquartered in Dubai, United Arab Emirates.

Part of ROCKWOOL A/S, DEUTSCHE ROCKWOOL GmbH & Co. KG is a German company that specializes in non-combustible stone wool insulation materials that improve a building's fire, sound, and thermal protection. The company is based in Gladbeck, Germany. The company offers a range of solutions, including Trittschalldämmung aus Steinwolle, which improves sound insulation and provides more peace and quiet. The company also offers Conlit Duct Board 90, a system solution for lightweight fire protection cladding of ventilation ducts. Additionally, the company has a webshop where customers can easily and directly order products online. The company was founded in 1937. The CEO is Volker Christmann.

Part of ROCKWOOL A/S, Rockwool Beteiligungs GmbH is a German company that specializes in insulation systems. The company is based in Gladbeck, Germany. The CEOs are Robert Meevis and Volker Christmann. The company was founded in 1989.