Joost ter Doest

e3 Partners BV (e3) is an independent venture capital firm headquartered in Amsterdam, Netherlands. The firm was founded in 2013.

Apparatenfabriek Helpman BV manufactures industrial cooling systems. The company supplies coolers and condensers for the industrial refrigeration market. Its heat exchangers are used for cooling, freezing, and air-conditioning installations. Apparatenfabriek Helpman was founded in 1924 and is headquartered in Groningen, the Netherlands.

Alfa Laval Groningen BV manufactures air heat exchangers for refrigeration and temperature control. The firm specializes in the production of high-grade coolers and condensers for the industrial market. Its products are used for cooling and freezing agriculture products. Alfa Laval Groningen was founded in 1924 and is headquartered in Groningen, the Netherlands.