Stefan Tirtey

CommerzVentures GmbH (CommerzVentures) is the corporate venture capital arm of Commerzbank AG. It was founded in 2014 and is headquartered in Frankfurt, Germany.

Doughty Hanson & Co Technology Ltd. (Doughty Hanson Technology Ventures) is the venture capital subsidiary of Doughty Hanson & Co. Managers Ltd. founded by Nigel P. Grierson and George W. Powlick in 2000. The firm is headquartered in London, United Kingdom.

Ubidyne, Inc. manufactures and markets radio antenna and digital frequency transmitters. Its patent-pending technology significantly improves the operating economics of wireless networks. It reduces energy consumption, enables simple, flexible deployment, and increases the coverage and capacity of wireless networks. The firm has locations in Arizona, Germany and Ulm. The company was founded in 2005 and is headquartered in Scottsdale, AZ.

Ubidyne develops dynamic digital antenna embedded radio technology for wireless communications. Ubidyne's standards-agnostic micro-radio technology is integrated with wireless antennas and revolutionizes the economics of mobile communications. These integrated active antenna systems are compatible with current and next generation standards. They eliminate the need for coaxial feeder cables, remote electrical tilt and additional amplifiers on antenna towers and masts. The Ubidyne technology significantly reduces energy consumption while improving radio performance, deployment flexibility, coverage and capacity of mobile communications networks globally.

Lucent Technologies used to design, develop and manufacture telecommunications systems, software and products. The company was headquartered in Welwyn Garden City, UK.