| Advanced Cleaning Ultimate Services Ltd | Renfrew | 2025 |
| Advanced Cleaning (Midlands) Limited | Stratford-Upon-Avon | 2009 |
| Advanced Cleaning Experts Limited | Enniskillen | 2016 |
| Advanced Cleaning Ltd | Belfast | 2018 |
| Advanced Cleaning Services Limited | Slough | 2013 |
| Advanced Cleaning Solutions Exterior Ltd | Worksop | 2025 |
| Advanced Cleaning Solutions Group Limited | Basildon | 2025 |
| Advanced Cleaning Technology Ltd | Slough | 1987 |
| Advanced Client Support Ltd | London | 2026 |
| Advanced Climate Rentals Ltd | Chipping Ongar | 2013 |
| Advanced Clinical Conferencing Ltd | Brentwood | 2024 |
| Advanced Coffee Equipment & Supplies Limited | Abingdon | 2002 |
| Advanced Comms Limited | Stockport | 2015 |
| Advanced Communication Projects Limited | Leeds | 1998 |
| Advanced Composites & Engineering Technology Limited | London | 2003 |
| Advanced Construction & Development Limited | Wolverhampton | 2017 |
| Advanced Consulting Partnership Limited | London | 2023 |
| Advanced Consumer Technology Limited | Middlesbrough | 2015 |
| Advanced Contractors Driveways and Roofing Limited | Derby | 2019 |
| Advanced Control Solutions Limited | Guildford | 1991 |
| Advanced Control Technologies Limited | London | 2020 |
| Advanced Controls & Management Systems Limited | Norwich | 2002 |
| Advanced Cooling Services Limited | Portsmouth | 2007 |
| Advanced Coordination Services Ltd | London | 2017 |
| Advanced Deep Clean Solutions Ltd | Brackley | 2021 |
| Advanced Dental Care Limited | Barnet | 2012 |
| Advanced Dental Equipment Ltd | Kilmarnock | 2018 |
| Advanced Detection Systems Limited | Oldham | 2003 |
| Advanced Devops Solutions Limited | Edinburgh | 2016 |
| Advanced Dietics Limited | Bury | 2009 |
| Advanced Direct Mail Limited | Netherton, Dudley | 2002 |
| Advanced Domestic Security Ltd | Woking | 2010 |
| Advanced Downhole Petrophysics Ltd | Edinburgh | 2012 |
| Advanced Drive Ltd | Rotherham | 2020 |
| Advanced Drives & Patios by Design Ltd | Grays | 2013 |
| Advanced Driveways & Patios Ltd | Crowborough | 2020 |
| Advanced Driveways (Northants) Ltd | Cannock | 2023 |
| Advanced Drone Security Limited | Ongar | 2023 |
| Advanced Dynamics Limited | Bradford | 2004 |
| Advanced Electrical Solutions Limited | Newport | 2010 |
| Advanced Electro Ltd. | Doncaster | 2003 |
| Advanced Endoscopy London Limited | London | 2019 |
| Advanced Energy Limited | Swanland | 2007 |
| Advanced Environments Ltd | London | 2024 |
| Advanced Exterior Cleaning Ltd | Stockport | 2023 |
| Advanced External Cleaning Limited | Cardiff | 2024 |
| Advanced Facility Management Ltd | Stanstead Abbotts | 2010 |
| Advanced Fencing & Gates Limited | Wigan | 2016 |
| Advanced Fencing & Landscaping Limited | Bristol | 2019 |
| Advanced Field Solutions UK Limited | Warwick | 2010 |
| Advanced Fire & Security Ltd | Accrington | 2019 |
| Advanced Fire & Security Systems Ltd | Glasgow | 2018 |
| Advanced Fire Ltd | Ferndown | 2017 |
| Advanced Fire Protection Limited | Treforest Industrial Estate | 2000 |
| Advanced Fluid Technologies Ltd | Sheffield | 2003 |
| Advanced Food Safety Limited | Shevington | 1999 |
| Advanced Forklift Services (Midlands) Limited | Atherstone | 1973 |
| Advanced Form Consulting Ltd | London | 2020 |
| Advanced Fuel Development Limited | Bridport | 2022 |
| Advanced Garden Fencing Limited | Farnham | 2005 |
| Advanced Global Consulting - London Ltd | Potters Bar | 2015 |
| Advanced Global Group Limited | Cardiff | 2016 |
| Advanced Global Ideas UK Limited | Stapleford Tawney | 2012 |
| Advanced Healthcare Staffing Limited | Brimstage Road | 2022 |
| Advanced Hire Services Ltd | Ilford | 2024 |
| Advanced HR Solutions Ltd | Doncaster | 2010 |
| Advanced Imaging Systems Limited | Wiltshire | 2006 |
| Advanced Individual Training Limited | Redditch | 2007 |
| Advanced Industrial Cleaning Limited | Upminster | 2003 |
| Advanced Industrial Solutions Limited | Christchurch | 2023 |
| Advanced Information Development & Consulting Ltd. | Stockport | 2006 |
| Advanced Intelligence Ltd | Bury | 2021 |
| Advanced IT Security Ltd | Bordon | 2018 |
| Advanced Joinery Solutions Limited | Bedford | 1999 |
| Advanced Landscape Enterprise Limited | Chatham | 2018 |
| Advanced Landscapes (North West) Ltd | Fleetwood | 2009 |
| Advanced Landscapes and Driveways Limited | Derby | 2024 |
| Advanced Landscapes Ltd | Bramley | 2024 |
| Advanced Leasing Limited | London | 2001 |
| Advanced Leather Care Limited | Chester | 2016 |
| Advanced Lifting Equipment and Services Ltd | Topsham, Exeter | 2007 |
| Advanced Lock Skills Limited | Hereford | 2005 |
| Advanced Locking and Locksmithing Limited | Eastleigh | 1984 |
| Advanced Mailing Solutions Limited | East Kilbride | 2002 |
| Advanced Maintenance Services (West Midlands) Ltd | Solihull | 2014 |
| Advanced Marking Services Limited | London | 2005 |
| Advanced Measuring Systems Ltd | Swindon | 2015 |
| Advanced Media Services Ltd | Stevenage | 2009 |
| Advanced Microcomputer Applications Limited | Nottingham | 1987 |
| Advanced Mineral Processing Limited | Bristol | 2018 |
| Advanced Motoring Limited | Birmingham | 2019 |
| Advanced Numeracy Transfers UK Limited | Northampton | 2011 |
| Advanced Office Networks Ltd | Harold Wood | 2015 |
| Advanced Office Solutions Ltd | Ashington | 2023 |
| Advanced Oxford CIC | Oxford | 2017 |
| Advanced Packaging Materials Limited | Cramlington | 1996 |
| Advanced Packaging Solutions Limited | Stoke-On-Trent | 2009 |
| Advanced Packing Solutions Limited | Reading | 2006 |
| Advanced Painting Contractors Ltd | Essex | 2016 |
| Advanced Paving and Landscaping NE Ltd | Bishop Auckland | 2026 |