Oasis acquired by private equity group

Defense contractor Oasis Systems has been acquired by GF Fund, a private equity group, the two companies announced today.

Tom Colatosti, who led the acquisition effort for GF Fund, has been named president and chief executive officer of Oasis.

Colatosti has a long track record in the government market, including senior executive positions with Digital Equipment Corp.’s government systems group. He also was president and CEO of Viisage Technology.

Most recently he was president and CEO of American Security Ventures, which provides strategic management services to new companies in the physical and cybersecurity and biometrics industries.

Oasis was founded in 1997 by Tom Chelliah, who will remain as a consultant to the company.

Oasis has 500 employees and is headquartered in Lexington, Mass.

The company provides information technology, systems engineering, enterprise applications and program management services to Defense Department customers.