Gregory J. Rossmann

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

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.

Summit Microelectronics, Inc. designs, develops, and manufactures Designs and manufactures programmable power integrated circuits. It provides integrated power management solutions combining precision power regulation with sophisticated digital control in a single chip. The firm's fast charging solutions are found in a variety of leading mobile phones, tablets, and e-readers. The company was founded in 1997 and is headquartered in San Diego, 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.

Acterna is the provider of communications test solutions for telecommunications and cable network operators. A trusted communications test partner for more than eight decades, Acterna offers portfolio of instruments, systems, software and services that help its customers reduce network costs while improving performance and reliability. Headquartered in Germantown, Maryland, US

Securify, inc. provides identity-based monitoring and verification solutions. Its clients include Banco Santander, Deutsche Bank, Guardian Life, VISA - America and EU, Defense Exchange Commissary Agency and Defense Finance and Accounting Service. The company was founded in 1998 by Geoffrey Cooper, Dan Kolkowitz, and Taher A. Elgama and is headquartered in Cupertino, CA.