John-Thomas Ellinwood

Nissint Technologies LLC provides software and electrical engineering services. The firm’s software engineering services include custom software development in Java and C++, web applications and web services, geospatial information systems, network design and security, database services, and software systems integration. Its electrical engineering services include radar system development, board design and layout, digital systems design and simulation, FPGA (field-programmable gate array), CPLD (complex programmable logic device), and DSP (digital signal processing) design, and VHDL (VHSIC hardware description language), Matlab, and Simulink programming. The company was founded by Nissa O. Ellinwood and John-Thomas Ellinwood in 2006 and is headquartered in Davidsonville, MD.

Essex Corp., a subsidiary of Northrop Grumman's Mission Systems sector, is a provider of signal processing services and products and optoelectronic imaging for government intelligent and defense customers. The company was founded in 1969 and is headquartered in Columbia, MD.

Sybase, Inc. engages in the development and provision of mobile and wireless software solutions for data integration. The company was founded in 1984 and is headquartered in San Ramon, CA.

Caelum Research Corp. provides information technology services. It offers applied science, system engineering, and program management solutions. The company was founded by Michael Yeh and Diana Yeh in 1987 and is headquartered in Rockville, MA.