London-based recruitment and systems consultancy firm Delphi Group Plc has made its third US acquisition in a year. This this time it’s Marlboro, Massachusetts-based Network Defenders Inc, a three year-old company with a network management capacity measurement and planning tool called Pro-vision. Delphi will pay $580,000 in cash, and a further $330,000 payable over two years, with a maximum earn-out payment of $3.5m over the three years to 31 December 2000. The company’ management will stay with the business, which will continue to trade under its own name. Pro- vision produces customised network performance reports to help companies manage their internal information technology. Delphi says it is continuing to broaden its range from its core recruitment business – it used to be known as Computer People – into services and consultancy, and says the Network Defenders business is complementary with its Computer People Inc US subsidiary. Delphi, which has a revenue of around 210m pounds (CI No 3,109), bought Boston, Massachusetts-based systems integrator Alpine Computer Services Inc last September (CI No 3,000) and King of Prussia, Pennsylvania based SystemsLink Inc soon after (CI No 3,071).