| OWENS-CORNING VEIL U.K. LTD. | Liversedge | 1951 | Full accounts |
| BERKSHIRE OPHTHALMIC LABORATORIES LIMITED | Thatcham | 1952 | Total exemption (full) |
| STOCKS BROS. LIMITED | Maryport | 1952 | Small company accounts |
| MARSHALLS MONO LIMITED | Elland | 1952 | Full accounts |
| S.A.V. UNITED KINGDOM LIMITED | Woking | 1952 | Medium company accounts |
| BORDER CONCRETE PRODUCTS LIMITED | Roxburghshire | 1952 | Total exemption (full) |
| FRED ARMSTRONG (GLASS) LIMITED | — | 1953 | Unaudited abridged |
| O-I GLASS LIMITED | Essex | 1953 | Full accounts |
| CLWYD CONCRETE CO.LIMITED | Denbigh | 1954 | Total exemption (full) |
| MI GLASS LIMITED | West Midlands | 1955 | Small company accounts |
| 00557167 LIMITED | Leeds | 1955 | Full accounts |
| VSM ABRASIVES LIMITED | Milton Keynes | 1955 | Small company accounts |
| ARDAGH GLASS LIMITED | West Yorkshire | 1956 | Full accounts |
| JACO-SUMAL LIMITED | Birmingham | 1957 | Total exemption (full) |
| POTTERS-BALLOTINI LIMITED | Bishop Auckland | 1957 | Full accounts |
| HINTON PERRY & DAVENHILL LIMITED | Brierley Hill | 1958 | Full accounts |
| ST. GEORGE GLASS COMPANY (BURY) LIMITED | Lancashire | 1958 | Unaudited abridged |
| E.WILTSHIRE & SON (TORQUAY) LIMITED | Torquay | 1958 | Small company accounts |
| JOHN BOURNE & CO. LTD. | Cranbrook | 1959 | Total exemption (full) |
| INIGO JONES AND CO. LIMITED | Caernarfon | 1959 | Total exemption (full) |
| DUPRE MINERALS LIMITED | Stoke on Trent | 1959 | Full accounts |
| P.BRANT AND SONS LIMITED | Herts | 1959 | Total exemption (full) |
| BRETT CONCRETE LIMITED | Canterbury | 1959 | Full accounts |
| PLASMOR LIMITED | Knottingley | 1959 | Full accounts |
| PATON HAWKSLEY EDUCATION LIMITED | Bristol | 1959 | Total exemption (full) |
| DAVID HART (ALCESTER) LIMITED | Feckenham | 1960 | Total exemption (full) |
| MEXBORO CONCRETE LIMITED | Bristol | 1960 | Audit-exempt subsidiary |
| SOUTHPORT GLASS CO. LIMITED | Southport | 1960 | Total exemption (full) |
| F A FIRMAN (HAROLD WOOD) LIMITED | Romford | 1960 | Total exemption (full) |
| RICHARD HAMBLIN LIMITED | South Shields | 1960 | Total exemption (full) |
| LAIRD BROTHERS (FORFAR) LIMITED | Forfar | 1961 | Full accounts |
| CERAMIC SEALS LTD. | Oldham | 1961 | Total exemption (full) |
| FRANK ENGLAND & CO. LIMITED | Birmingham | 1961 | Unaudited abridged |
| KETLEY BRICK COMPANY,LIMITED(THE) | West Midlands | 1961 | Small company accounts |
| W.H.COLLIER LIMITED | Colchester | 1961 | Total exemption (full) |
| GPE SCIENTIFIC LIMITED | Leighton Buzzard | 1962 | Total exemption (full) |
| MORRIS & PERRY LIMITED | Somerton | 1962 | Full accounts |
| QUARTZTEC EUROPE LIMITED | London | 1962 | Full accounts |
| INSTRUMENT GLASSES,LIMITED | Potters Bar | 1962 | Unaudited abridged |
| PILKINGTON TECHNOLOGY MANAGEMENT LIMITED | Oban | 1963 | Full accounts |
| A. & J. ROBERTSON (GRANITE) LIMITED | Westhill | 1963 | Group accounts |
| REDUCTA (SALES) LIMITED | Watford | 1963 | Unaudited abridged |
| SAIT ABRASIVES (UK) LIMITED | Leicester | 1963 | Small company accounts |
| S MORRIS LIMITED | Somerton | 1963 | Full accounts |
| HOBEN INTERNATIONAL LIMITED | Derbyshire | 1963 | Full accounts |
| SGL CARBON LIMITED | Altrincham | 1963 | Full accounts |
| P R ROAST & COMPANY LIMITED | Ipswich | 1964 | Total exemption (full) |
| THOMAS ARMSTRONG (CONCRETE BLOCKS) LIMITED | Maryport | 1964 | Full accounts |
| STRESSLINE LIMITED | Leicestershire | 1964 | Medium company accounts |
| MS-GROUP LIMITED | Cardiff | 1964 | Total exemption (full) |
| L.F.MOON LIMITED | Merseyside | 1964 | Unaudited abridged |
| POWYS READY MIXED CONCRETE COMPANY LIMITED | Shropshire | 1965 | Total exemption (full) |
| C. & H. QUICK-MIX LIMITED | Norwich | 1965 | Small company accounts |
| THE VOBSTER CAST STONE COMPANY LIMITED | Clifton | 1965 | Audit-exempt subsidiary |
| METROPOLITAN MASONRY LIMITED | Essex | 1965 | Total exemption (full) |
| FRANCIS MCCONE & SONS LIMITED | Co Armagh | 1965 | Total exemption (full) |
| INTERFUSE LIMITED | — | 1965 | Full accounts |
| CERAMTEC UK LTD | Southampton | 1965 | Full accounts |
| STEVENAGE GLASS COMPANY LIMITED | Herts, | 1966 | Unaudited abridged |
| CASTACRETE LIMITED | Maidstone | 1966 | Group accounts |