- 1st Eclipse Cleaning
- 3Way Cleaning Limited
- Accelerate Facilities
- Accomplished Contract Services Ltd
- ACM Environmental plc
- AliMo Care Ltd
- All Clean Services
- Allander Security Limited
- AMFM Ltd
- Andron Facilities Management
- Apleona HSG Limited
- ASA Recruitment
- Assured Cleaning Services Limited
- Aston Services Ltd
- Astrum Commercial Cleaning Services
- Atlantic Resource (Services) Ltd.
- Axis Security
- Bayleaf Cleaning Limited
- Bespoke Commercial Cleaning
- Birkin Cleaning Services Limited
- Brightwork
- Carlisle Support Services
- CCM Facilites Ltd
- Chamberlaine Cleaning Services Ltd
- Churchill Contract Services
- CIS Security Limited
- City & Essex Limited
- City Central Cleaning & Support Services Ltd
- City Cleaning
- City West Support Services
- Cleaning Express
- Cleanology
- Consortio Security Ltd
- Cordant Security Limited
- Croma Vigilant
- Crystalcare Cleaning Services
- Cynergi Cleaning & Support Services
- Diverse Commercial Solutions
- DOC Cleaning Limited
- Ecocleen Services Ltd
- Edinburgh Commercial Cleaning Limited
- Edsential
- Elite Support Services [London] Limited
- ENGIE Services Ltd
- Enhance
- Ethos Facilities
- Exclusec Group
- Facilicom
- FGH Security Ltd
- First Response Group
- Glenn Cleaning and Support Services Ltd
- Green Facilities Management Ltd
- Greenzest Limited
- Greenzone Cleaning & Support Services Ltd
- GSF Sandylight/GSF London Ltd
- HATS Group
- Heritage Healthcare Chelmsford
- IC Blue LTD
- Incentive FM Group Limited
- Inner London Cleaning Ltd
- IOC Ltd
- ISS UK
- Jane Jefferson Cleaning
- JLL Resources Ltd
- JLL Services UK
- Julius Rutherfoord & Co. Ltd.
- K. Burrett Cleaning Services Ltd.
- LCC Support Services Ltd
- Light & Airey Cleaning Services
- MAR Facilities Support Services
- Mara Facilities Services
- Millards Cleaning Services Ltd
- MN Support Services Ltd
- NJC
- Nth Degree Catering Company Limited
- NuServe Limited
- OCS Group UK Ltd
- Olivers Mill Cleaning and Maintenance LLP
- Paice Complete Office Services
- Pareto FM
- Peartree Cleaning Services Ltd
- Pilgrims Group
- Premier Workplace Services
- Prime Clean
- Principle Cleaning Services Limited
- Property Support Services UK Ltd
- Prospectus Ltd
- Quality & Service Limited
- QX Services
- QX Services Limited
- Regent Samsic & Regent Samsic London
- Regional Services
- Regular Cleaning Services Ltd
- Restaurant Associates
- Ridge Crest Cleaning
- Salus Support Services
- SecuriGroup
- Securist Limited
- Securitas
- Securitay Limited
- Shield Service Group Ltd
- Sidekick Group
- Sight & Sound Security
- Signal 88 Security
- Signature Recruitment
- So Clean Cleaning & Support Services
- Sodexo
- Stafflex Limited
- Supacleen Limited
- Super Clean South Ltd
- Superclean Services Ltd
- Thames Cleaning & Support Services Limited
- The Clean Space
- The Security Group (National) Limited
- The Westgrove Group
- Think FM
- Total Solutions Group
- Total Support Services
- Trigion
- Ultimate
- Universal Security Limited
- Versailles Cleaning Ltd
- VSG
- Ward Security
- Westgrove Support Services Ltd
- Wilson Vale Catering
- WORKPLACE
- Xenon Services Ltd