| Cater Care U.K. Limited | Birmingham | 2009 |
| Cater Guard Ltd | Egham | 2025 |
| Cater Master Fabrications Ltd | Accrington | 2025 |
| Cater Point UK Ltd | Paignton | 2025 |
| Cater Rent UK Limited | Ashton-Under-Lyne | 2014 |
| Cater Source Ltd | Leicester | 2025 |
| Cater Wight Limited | Wootton Bridge | 2003 |
| Cater Works Ltd | Paignton | 2026 |
| Cater-Equip Ltd | Pontyclun | 2005 |
| Cater-Force Food Service Engineers Ltd | Saltaire | 2015 |
| Cater-Moore Ltd | Basildon | 2025 |
| Cater-Trailer Limited | Huddersfield | 2005 |
| Cateraid Ltd | Bewdley | 2012 |
| Caterbee UK Co., Ltd | Stafford | 2021 |
| Catercall Ltd | Redhill | 2011 |
| Catercall Services Limited | Ipswich | 2000 |
| Catercare Warewash Systems Ltd | Weymouth | 2018 |
| Catercombi Ltd | Hawkinge, Folkestone | 2016 |
| Catercool NW Limited | Liverpool | 2005 |
| Catercounter Ltd | Salisbury | 2025 |
| Catercraft Supplies Limited | Liverpool | 1997 |
| Caterfab Engineering Limited | Ballymena | 2015 |
| Caterfab Limited | Oldham | 2005 |
| Caterfix (Midlands) Limited | Wigston | 2002 |
| Caterfix (Scotland) Limited | Glasgow | 2022 |
| Caterfix Equipment Services Ltd | Didcot | 2017 |
| Caterfix Kitchens Limited | Chippenham | 2012 |
| Caterfix Pro Limited | Croydon | 2025 |
| Caterform Limited | Walker | 1987 |
| Caterform Stainless Steel Fabrications Limited | Bradford | 1987 |
| Catergas Limited | Worthing | 2015 |
| Caterglobe Limited | London | 2013 |
| Caterham Cars Group Limited | Dartford | 2004 |
| Caterham Cars Ltd. | Dartford | 1974 |
| Caterham EVO Limited | Dartford | 2023 |
| Caterham Interiors Ltd | Seaford | 2008 |
| Caterham Marble and Granite Limited | Stoke-On-Trent | 1995 |
| Caterham Technology and Innovation Limited | Leafield | 2011 |
| Caterhaus Ltd | Hunslow | 2026 |
| Caterin Investments Ltd | Woodford Green | 2011 |
| Caterina Belluardo Ltd | Stratford-Upon-Avon | 2013 |
| Catering & Beverage Services Limited | Carryduff | 2015 |
| Catering & Home Accessories Limited | Blackburn | 2021 |
| Catering and Exhibition Limited | Colchester | 2021 |
| Catering and Refrigeration Specialists Ltd | Erith | 2024 |
| Catering Bakery and Refrigeration Spares Limited | Bolton | 2017 |
| Catering Canopies Scotland Limited | Motherwell | 2021 |
| Catering Components Ltd | Bristol | 1997 |
| Catering Connection Ltd | Witham | 2023 |
| Catering Craftsman Ltd | Bridgwater | 2025 |
| Catering Equipment Remedies Ltd | Gosport | 2023 |
| Catering Equipment Repairs and Maintenance Limited | Edinburgh | 2009 |
| Catering Equipment Warehouse Ltd | Bradford | 2018 |
| Catering Fabrications Limited | Swansea | 2017 |
| Catering HQ Limited | Enniskillen | 2011 |
| Catering Installation & Service Ltd | Farnborough | 2023 |
| Catering Maintenance Services Highland Ltd | Tain | 2019 |
| Catering Materials Handling Ltd | Bexley | 2024 |
| Catering Partnership Limited | Preston | 2015 |
| Catering Repair Services Ltd | Norwich | 2018 |
| Catering Repair Services NE Ltd | Gateshead | 2024 |
| Catering Repairs Limited | Brighton | 2026 |
| Catering Services and Installations Limited | Ormskirk | 2008 |
| Catering Sparky Ltd | Slough | 2023 |
| Catering Spice Ltd | Pinner | 2022 |
| Catering Tech Ltd | Harrow | 2025 |
| Catering Tech Services Limited | Swindon | 2010 |
| Catering Technical Services Limited | Aberdeen | 2010 |
| Catering Trailers Scotland Limited | Motherwell | 2016 |
| Catering Units and Van Conversions Limited | Chester Le Street | 2021 |
| Catering Units Limited | Gateshead | 2018 |
| Catering Vans Ltd | St. Neots | 2019 |
| Catering-Van Conversions Limited | St. Ives | 2016 |
| Caterkit Services Limited | Stevenage | 1990 |
| Caterkool Limited | Maidstone | 2023 |
| Caterkwik Fabs Limited | Ulverston | 2014 |
| Caterlec Services Limited | Norwich | 1994 |
| Caterlee Limited | Cardiff | 2020 |
| Caterline Limited | Coventry | 1987 |
| Caterlink UK Limited | Aldridge | 2003 |
| Catermek South West Ltd | Bridgwater | 2013 |
| Caterpac Limited | Scarborough | 1968 |
| Caterpillar (NI) Limited | Larne | 1966 |
| Caterpillar (U.K.) Limited | Leicester | 1950 |
| Caterpillar Marine Power UK Limited | Wimborne | 1968 |
| Caterpillar Shrewsbury Limited | Shrewsbury | 1999 |
| Caterpillar Skinningrove Limited | Saltburn By The Sea | 1987 |
| Caterpoint Engineering Ltd | Hailsham | 2022 |
| Caterpro Direct Ltd | Hyde | 2023 |
| Caterpro Engineering Services Ltd | Manchester | 2018 |
| Caterprompt Ltd | Wokingham | 2016 |
| Caterquip Ventilation Limited | Wellesbourne | 2000 |
| Caterserv (Scotland) Ltd | Glasgow | 2008 |
| Caterserv Ltd | Eastbourne | 2018 |
| Caterserve (NI) Ltd | Dundonald | 2006 |
| Catertec Highland Ltd | Inverness | 2020 |
| Catertec Ltd | Wisbech | 2003 |
| Catertech (North East) Limited | Ferryhill | 2008 |
| Catertech Services Limited | Cardiff | 1995 |
| Catertek Limited | Westerham | 1994 |