- EPC in Oadby
- EPC in Oakham
- EPC in Oban
- EPC in Okehampton
- EPC in Oldbury
- EPC in Oldham
- EPC in Oldmeldrum
- EPC in Olney
- EPC in Omagh
- EPC in Orkney
- EPC in Ormskirk
- EPC in Orpington (London)
- EPC in Ossett
- EPC in Oswaldtwistle
- EPC in Oswestry
- EPC in Otley
- EPC in Ottery St. Mary
- EPC in Oundle
- EPC in Oxford
- EPC in Oxfordshire
- EPC in Oxted
Certified by the following organisations
