PROACTIVE SECURITY MANAGEMENT LLP Company number OC440802 · Monitor this company Active Overview People 2 Financial Control Documents Analysis Location Related Registered office AddressProgress Business Centre, Unit 18, Whittle Parkway, Slough, England, SL1 6DQ PostcodeSL1 6DQ Companies at this postcode 240 Average house price in SL1 6DQ £548,000 (6 sales) Map