Through major programmes such as ASTOR (Airborne Stand-Off Radar) Raytheon Systems Limited has become a first tier supplier to the UK Ministry of Defence. The company has consequently developed a close working relationship with the Defence Procurement Agency (DPA), located at Abbey Wood, and RSL's Bristol office offers convenience and expediency for company personnel who are working with DPA officials.

With the growth of RSL's naval programme activities the Bristol office is currently being expanded to accommodate additional pesonnel.