| STATUS | INST | LOCATION | CITY | STATE | COUNTRY |
| RP | A | RIVIERA TH | LARKINS | FL | USA |
| RP | B | PROGRESSIVE STUDIO | ST PAUL | MN | USA |
| SD | C | RB FILMAPHONE STUDIO | LONDON | ENG | UK |
| SD | D | RB CRYSTALATE RCRDNG | W HAMPSTEAD | ENG | UK |
| SD | E | BRTSH MFG RSCH LTD | GRANTHAM | ENG | UK |
| SD | F | CLAUDE BURKS RS | HGH WYCOMBE | ENG | UK |
| SD | G | RB EDWARD RANSOM | KINGS LYNN | ENG | UK |
| SD | H | BOB FREEMAN | MIDDLESBURGH | ENG | UK |
| OK | I | JOHN HATTERSLEY | DUMFRIES | SCT | UK |