The company operates through the following 25 sister websites:

• EPCargyll.com
• EPCaberdeen.info
• EPCinverness.info
• EPCscottishborders.com
• EPCmidlothian.co.uk
• EPCwestlothian.com
• EPCedinburgh.info
• EPCglasgow.com
• EPCfife.com
• EPCeastlothian.com
• EPCayrshire.info
• EPCdumfries.com
• EPCstirling.com
• EPCrochdale.com
• EPCcarlisle.com
• EPCnewcastle.com
• EPCmanchester.co
• EPC-yorkshire.com
• EPCdundee.com
• EPCperth.com
• EPCStockport.com
• legionellariskassessmentregister.com
• fasterEPC.com
• BPHEnergyAssessmentsLimited.com