Kevin Lee Russeth

Tek84, Inc. manufactures body scanners. The company is based in Poway, CA and has subsidiaries in United States. The CEO of the company is Steven W. Smith.

Diversified Opportunities, Inc. develops, markets and supports software products designed to automate the management of computer systems for commercial concerns. It was founded on June 5, 1986 and is headquartered in Encinitas, CA.

QRSciences Holdings Ltd. develops, designs and sells proprietary systems, components and software for use in global commercial security markets. It is a value added reseller of high-end security products including detection, alarm and surveillance systems. The company focuses on the global security market with primary emphasis on the United States, Australia and the United Kingdom. It was founded in November 1995 and is headquartered in Port Melbourne, Australia.

QRSciences Holdings Ltd. develops, designs and sells proprietary systems, components and software for use in global commercial security markets. It is a value added reseller of high-end security products including detection, alarm and surveillance systems. The company focuses on the global security market with primary emphasis on the United States, Australia and the United Kingdom. It was founded in November 1995 and is headquartered in Port Melbourne, Australia.

Part of OSI Systems, Inc., QRSciences Pty Ltd. designs and sells proprietary systems, components and software. The company is based in Port Melbourne, Australia. QRSciences was acquired by Rapiscan Systems, Inc. from QRSciences Holdings Ltd. on April 22, 2010 for $0.15 million.

Rancho Santa Fe Partners provides financial services. The company was founded by Kavin Lee Russeth and Steven James Davis and is headquartered in Fullerton, CA.

Co-founded in 1991, Rancho Santa Fe Technology, Inc. (RSFT) is a privately held, minority-owned business headquartered in San Diego, California, with offices in Alameda, California and Tempe, Arizona. Rancho Santa Fe Technology's focus is to keep mission-critical information systems up and running for businesses that rely on these systems to maintain a competitive advantage. RSFT serves clients ranging from manufacturers, healthcare providers, high-technology leaders, telecommunications providers, research institutions, and government agencies to large financial institutions with branch offices extending over large geographical regions. Rancho Santa Fe Technology is registered and holds construction and architectural/engineering licenses in Arizona, California, Nevada, New Mexico, Oregon, Texas, Utah, Washington and other western states.