Kaarel Rahu

GrabCAD, Inc. manufactures and markets 3D printers and production systems. It operates as a social computer-aided design network. The company was founded by Hardi Meybaum and Indrek Narusk on February 18, 2011 and is headquartered in Cambridge, MA.

Plan9 Technology Incubator provides investment services. The company was founded by Umar Saif in August 2012 and is headquartered in Lahore, Pakistan.

Utilitas OÜ distributes thermal energy and electricity. It provides district heating services. The company was founded on December 14, 2011 and is headquartered in Tallinn, Estonia.

UG Investeeringud OÜ is a holding private company based in Maakri, Estonia. and has subsidiaries in Finland and Estonia. The Estonian company operates as a holding company. The CEO of the company is Kristjan Rahu.

UG Investments OÜ is an Estonian investment holding company founded by Kristjan Rahu. The private company is based in Tallinn, Estonia. The company's vision is to create a better and more sustainable living environment through investments. UG Investments mainly invests in sustainable and export potential companies in the energy and industrial sector, infrastructure, and communal sector. The company's investment horizon is flexible, and action is fast based on the needs of a specific project. UG Investments puts its capital into companies with a solid time horizon and professional management, and the lion's share of the capital is invested in Estonian and neighboring companies.