Annecy, France-based Facilities Management International SA has bought East Grinstead, Sussex-based Digital Networks International Ltd for an undisclosed sum. The purchase went through in May but Facilities Management only announced the acquisition on July 28; chairman Walter Zwick said there was no particular reason for the delay. He added that Facilities Management has so far invested UKP600,000 in Digital Networks. The acquired company, which employs 30, will remain at its current offices. Facilities Management, with offices in London and Boston, Massachusetts as well as the French office, provides software and services for distributed systems management. Digital Networks specialises in help desk expert systems. Zwick says the purchase of the company will expand its expertise and its customer base. Facilities Management’s customers are predominantly in the service sector and Digital Networks’ in the corporate.