Gregory J. Rossmann

Oak Investment Partners (Oak Investment Partners) is a venture capital firm founded in 1978 by Ed F Glassmeyer and Stewart H Greenfield. The firm is headquartered in Wilton, Connecticut.

Nexant, Inc. provides intelligent grid software and clean energy solutions. It is a globally recognized software, consulting and services leader that provides innovative solutions to utilities, energy enterprises, chemical companies and government entities worldwide. The firm provides intelligent grid software and clean energy solutions that advance electric power grid and alternative energy services. Nexant was founded by Basem Y. Sarandah on January 1, 2000 and is headquartered in San Francisco, CA.

Jefferies Broadview, a division of Jefferies & Company, Inc. provides services to the information technology, communications, healthcare technology and digital media industries. The firm addresses six major technology segments: communications technology, semiconductors and electronics manufacturing, enterprise software, digital media, and information technology services. Jefferies Broadview consists of 90 investment bankers operating in the US, Europe and Asia. The company provides investment banking services including debt and equity underwriting, private placements, M&A and restructuring advisory services. The company is headquartered in New York, NY.

FirstMark Capital LLC (FirstMark Capital) is venture capital firm founded by Rick Heitzmann and Amish Jani in 1996. The firm is headquartered in New York.

Hammerhead Systems, Inc. manufactures data communications equipment. It provides layer 2.5 aggregation, interworking and migration solutions for telecommunications service providers, which include wire-line and wireless carriers. The company's solutions include the HSX 6000 layer 2.5 aggregation switch, and its pegador SOA element management system. Hammerhead Systems was founded in January 2002 by Robert Keil & John Yu and is located in Mountain View, CA

GCT Semiconductor, Inc. provides wireless communication solutions. The firm designs and supplies advanced 4G LTE and 5G semiconductor solutions. GCT’s market-proven LTE solutions, commercially available since 2010, have enabled fast and reliable LTE connectivity to numerous commercial devices such as smartphones, tablets, hotspots, CPEs, USB dongles, routers, M2M applications, and more, to the world’s top LTE carriers. It's system-on-chip solutions integrate radio frequency, baseband modem and digital signal processing functions into a single die, therefore offering complete 4G platform solutions with small form factors, low power consumption, high performance, high reliability and cost effectiveness. The company was founded by Kyeong-Ho H. Lee and Ki-Sub Lee in 1998 and is headquartered in San Jose, CA.

Mantaro Networks, Inc. provides custom engineering design and product development services. It offers turnkey product development, analog hardware, digital hardware, DSP design services, software development, FPGA design, wireless design, and wireless power design. The firm caters consumer, product, medical, telecommunications and transportation sectors. The company was founded by Gabriel Mayo and Jeremy Parsons in 2010 and is headquartered in Germantown, MD.

Oak Investment Management Group provides real estate services. The private company is based in Belgravia, UK.