- 14forty
- 1st Eclipse Cleaning
- 3Way Cleaning Limited
- Accelerate Facilities
- Accomplished Contract Services Ltd
- ACM Environmental plc
- Advanced Cleaning Services
- AIM Commercial Cleaning
- All Clean Services
- Allander Security Limited
- AMFM Ltd
- Andron Facilities Management
- Apleona HSG Limited
- Arc Hospitality Recruitment Solutions Limited
- Arc Recruitment Solutions Limited
- ASA Recruitment
- Ashdown Phillips & Partners
- Assured Cleaning Services Limited
- Aston Services Ltd
- Astrum Commercial Cleaning Services
- Atlantic Resource (Services) Ltd.
- Baltimore FM
- BAM FM
- Bayleaf Cleaning Limited
- Bespoke Commercial Cleaning
- Bidvest Noonan (UK) Ltd
- Birkin Cleaning Services Limited
- Bold Security Group (UK) Ltd
- Capital Cleaning Service
- Carlisle Support Services
- CBRE GWS
- CCM Facilites Ltd
- Chamberlaine Cleaning Services Ltd
- Chartwells
- Churchill Contract Services
- CIS Security Limited
- City & Essex Limited
- City Central Cleaning & Support Services Ltd
- City Cleaning
- City Group Managed Serviced Ltd
- City West Support Services
- CleanEvent Services
- Cleaning Express
- Cleanology
- Clear Watch Security
- Compass Group
- Consortio Security Ltd
- Corps Security
- Croma Vigilant
- Crown Workplace Services
- Crystalcare Cleaning Services
- Cynergi Cleaning & Support Services
- Distinct Group
- Diverse Commercial Solutions
- DMJ Services
- DOC Cleaning Limited
- Eboracum UK Ltd
- Ecocleen Services Ltd
- Edinburgh Commercial Cleaning Limited
- Edsential
- Elite Support Services [London] Limited
- Elizabethan Security Ltd
- EMCOR UK
- Enhance
- ESS
- Ethos Facilities
- Eurest
- Excellerate Services UK
- Exclusec Group
- Expeditious Services
- 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
- Hawkey Cleaning & Support Services
- Heath and Wiltshire Ltd
- 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.
- Kingdom Cleaning
- Levy
- Light & Airey Cleaning Services
- LSS
- MAR Facilities Management
- Mara Facility Services
- MaxxClean Limited
- Medirest
- Melton Group
- Mitie
- MN Support Services Ltd
- NECS (UK) Ltd
- NJC
- Nth Degree Catering Company Limited
- NuServe Limited
- OCS
- Olivers Mill Cleaning and Maintenance LLP
- Paice Complete Office Services
- Pareto FM
- Peartree Cleaning Services Ltd
- Pilgrims Group
- Premium Support Services Ltd
- Prime Clean
- Principle Cleaning Services Limited
- Property Support Services UK Ltd
- Prospectus
- Purgo Supply Services Ltd
- Q3 Services Group Limited
- Quality & Service Limited
- RA Group
- Radiance Services
- Redwood Security Management
- Regent Samsic & Regent Samsic London
- Regional Services
- Regular Cleaning Services Ltd
- Ridge Crest Cleaning
- S&M Cleaning & Support Services Ltd
- Salus Support Services
- SecuraClean Support Services
- SecuriGroup
- Securist Limited
- Securitas
- Securitay Limited
- ServiceMaster Mercia
- Shield Service Group Ltd
- Sidekick Group
- Sight & Sound Security
- Signal 88 Security
- Signature Recruitment
- SNSG
- So Clean Cleaning & Support Services
- Sodexo
- Spotless Commercial Cleaning ltd
- Stafflex Limited
- Supacleen Limited
- Super Clean South Ltd
- Sussex Cleaning & Care Ltd
- Sword Security
- Tarem Services Ltd
- Tatry Group Ltd
- Thames Cleaning & Support Services Limited
- The Clean Space
- The Exclusive Services Group
- The Security Group (National) Limited
- Think FM
- Tidy Green Clean
- Total Security Services
- Total Support Services
- Trigion
- Tudor Group Ltd
- Universal Security Limited
- Versailles Cleaning Ltd
- Vinci Facilities
- VSG
- Ward Security
- Wates Facilities Management
- Wates Residential
- Westgrove Group
- Wetton Cleaning Services Limited
- Wilson James Ltd
- Wilson Vale Catering
- WORKPLACE
- Xenon Services Ltd