| Lxryweekends Ltd | Administrative & support | 2025 |
| Lynton Lodge(Sutton)Limited | Households | 1961 |
| M Harvey Associates Ltd | Health & social care | 2010 |
| M. G. Motors of Cheam Limited | Wholesale & retail | 2009 |
| Manning Fish Bar Limited | Hospitality | 2014 |
| Mars Commercial Ltd | Construction | 2022 |
| Master DJC Ltd | Information & communication | 2023 |
| Matte Creative Ltd | Information & communication | 2014 |
| MBA Commercial Lending Limited | Financial services | 2024 |
| Mcgovern Carpentry & Design Limited | Construction | 2010 |
| Medical Admin Limited | Administrative & support | 2024 |
| Mercury Translations Limited | Professional & scientific | 2005 |
| Metro Timber Limited | Wholesale & retail | 2010 |
| MG & TC Limited | Hospitality | 2011 |
| Michael D Giles Limited | Professional & scientific | 2005 |
| Michelle Bench Limited | Information & communication | 2010 |
| Midi Hideaways Limited | Real estate | 2003 |
| Mighty Minis Limited | Arts & recreation | 2002 |
| Milfrajan Limited | Other services | 2012 |
| Millie Whizz Ltd | Education | 2010 |
| Minimaster Limited | Administrative & support | 1998 |
| Monica Bradley Associates Limited | Financial services | 2014 |
| Motor Racing Medics Limited | Administrative & support | 2006 |
| Mount Doom Enterprises Limited | Professional & scientific | 2013 |
| Mumma Elves Childminding Limited | Health & social care | 2024 |
| N J Brown Design Consultancy Limited | Professional & scientific | 2010 |
| Naasa Limited | Health & social care | 2008 |
| Nafama Sports Ltd | Professional & scientific | 2020 |
| Nayargroup Limited | Construction | 2024 |
| Neil Janin Limited | Professional & scientific | 2014 |
| Neocyclos Limited | Health & social care | 2017 |
| Nexus Project Services Ltd | Construction | 2024 |
| Nimco Properties LLP | | 2021 |
| NKM Consulting Services Limited | Professional & scientific | 2026 |
| NML Property Limited | Real estate | 2021 |
| Nonsuch High School Charitable Trust | Education | 2010 |
| Norma Jean Holdings Ltd | Financial services | 2019 |
| Nossa Casa Ltd | Real estate | 2020 |
| Nurdin Investments Ltd | Real estate | 2013 |
| NZM Solutions Ltd | Other services | 2012 |
| Ocean House Cheam Limited | Households | 2024 |
| Old Coroners Court Ltd | Construction | 2017 |
| Online Video Productions Limited | Administrative & support | 2006 |
| Opal Group London Limited | Real estate | 2016 |
| Opal Investments London Limited | Real estate | 2016 |
| Opal LJ Limited | Real estate | 2024 |
| Oriental Delight (UK) Limited | Wholesale & retail | 2013 |
| Osharma Limited | Real estate | 2025 |
| Oumar K Ltd | Professional & scientific | 2010 |
| Overlander Holdings Limited | Extraterritorial | 2017 |
| Parky Productions Ltd | Information & communication | 2017 |
| Perilous Ventures Ltd | Professional & scientific | 2021 |
| Pillar Promotions Limited | Administrative & support | 1994 |
| Pink Penguin Productions Ltd | Information & communication | 2020 |
| PJ Triangle Ltd | Financial services | 2026 |
| Playdays Pre-School Limited | Education | 2008 |
| Premier Land Ltd | Real estate | 2003 |
| Pretty Plants Limited | Agriculture & fishing | 2023 |
| Prime Medical Care Limited | Health & social care | 2011 |
| Printbarn Limited | Real estate | 1976 |
| Prodecorations Limited | Construction | 2018 |
| PT2022 Limited | Financial services | 2022 |
| Quiet Counsel III Ltd | Professional & scientific | 2022 |
| R & W LE Serve Limited | Construction | 2002 |
| R&D Steelwork Erection Ltd | Construction | 2023 |
| Rec-Sense Recruitment Ltd | Administrative & support | 2013 |
| Redirect Marketing Ltd | Wholesale & retail | 2011 |
| Reeve Property Group Ltd | Construction | 2024 |
| Remulate Protect Ltd | Administrative & support | 2009 |
| Remulate Wealth Ltd | Administrative & support | 2022 |
| Renukaravi Limited | Health & social care | 2014 |
| Rhkb Investments Ltd | Real estate | 2019 |
| Richard Covey Fencing Ltd | Construction | 2017 |
| Ridgeway Sutton Corner Limited | Extraterritorial | 2015 |
| Rjkh Management Limited | Professional & scientific | 2015 |
| Robert E Price & Co Ltd | Professional & scientific | 2017 |
| Robson & Francis Rewinds Limited | Administrative & support | 1997 |
| Robyn Falck Interiors Limited | Administrative & support | 2008 |
| Ronin-Pentest. Ltd | Information & communication | 2019 |
| Roselea Cafe (Morden) Ltd | Hospitality | 2011 |
| Russell Cawberry Holdings Limited | Financial services | 2024 |
| Russell Cawberry Limited | Construction | 1986 |
| S R Redgrove Limited | Wholesale & retail | 1994 |
| Sakura Enterprises Limited | Hospitality | 2024 |
| Salion Limited | Mining & quarrying | 2018 |
| Sanchez & Family Enterprises Limited | Hospitality | 2025 |
| Sandpiper Carhire Ltd. | Transport & logistics | 2007 |
| Sansith Illam Ltd | Real estate | 2017 |
| Scanlon Tree Care Ltd | Administrative & support | 2025 |
| Scott Hill Management Limited | Professional & scientific | 2011 |
| SG Trustee Limited | Financial services | 2025 |
| SH Creations Limited | Information & communication | 2017 |
| SH Futures Ltd | Real estate | 2020 |
| Sherwood Park Associates Ltd | Real estate | 2010 |
| Silent Water Limited | Hospitality | 2003 |
| Silverdale Solutions Limited | Professional & scientific | 1998 |
| Simply Robert Foster Limited | Hospitality | 2012 |
| Sjjb Consultants Limited | Professional & scientific | 2023 |
| Skywaypath Limited | Extraterritorial | 2014 |
| Solarlec Renewable Energy Services Ltd | Professional & scientific | 2026 |