| 100 Fellows Road Management Company Limited | Households | 2002 |
| 119 Dartmouth Road Ltd | Households | 2007 |
| 239 GHT Limited | Households | 1991 |
| 3 Lyndhurst Road (1990) Limited | Households | 1990 |
| 31 Gunnersbury LLP | | 2026 |
| 48 Priory Road Limited | Real estate | 2009 |
| 528 Limited | Professional & scientific | 2018 |
| Academy School (Hampstead) LLP | | 2009 |
| Advanced Oral Surgery & Implant Ltd | Health & social care | 2019 |
| AE Borehamwood Ltd | Real estate | 2024 |
| Albas Consulting Limited | Education | 2004 |
| Aldun Property Co. Limited | Real estate | 1964 |
| Anthony Nolan | Health & social care | 1989 |
| Aquajet Drains Ltd | Administrative & support | 2025 |
| Artichoke Flowers Ltd | Wholesale & retail | 2023 |
| ASK Learn Share Ltd | Information & communication | 2016 |
| Bcno Limited | Professional & scientific | 1956 |
| Betaglow Limited | Arts & recreation | 1982 |
| Blue Nile Investments LLP | | 2008 |
| Brackman Chopra LLP | | 2001 |
| Burooj Engineering Ltd | Professional & scientific | 2024 |
| Cloveholly Property Management Limited | Households | 2007 |
| Cobbleston Properties Limited | Real estate | 2016 |
| CSJ Homes (N14) Ltd | Construction | 2024 |
| Cynance Consulting Ltd | Information & communication | 2019 |
| Dental Wellness Trust | Health & social care | 2011 |
| Easy Fleet Management Services Ltd | Transport & logistics | 2002 |
| Ebonytree Limited | Arts & recreation | 1982 |
| Einstein Tagore Ltd | Arts & recreation | 2012 |
| Elite Marketing Enterprises Ltd | Wholesale & retail | 1996 |
| Emily Grey Ltd | Other services | 2022 |
| European Leisure Management Group Limited | Arts & recreation | 2016 |
| Eyepiece Media Ltd | Information & communication | 2025 |
| Fairyshari Limited | Arts & recreation | 2011 |
| Flashes & Flames Media Ltd | Information & communication | 2020 |
| Global Jamjar LLP | | 2012 |
| Global Spin Artists LLP | | 2011 |
| Global Spin Productions LLP | | 2011 |
| Hail Mary Publishing Limited | Information & communication | 2020 |
| Hampstead Mansions Ltd | Real estate | 2018 |
| Hashir Design Ltd | Professional & scientific | 2025 |
| Hydrogenie Services Ltd | Energy | 2018 |
| INU & Nini Ltd | Other services | 2018 |
| J Manning Properties (West END) Limited | Real estate | 1954 |
| Jessica Productions Limited | Information & communication | 2011 |
| Lowlands Residents Limited | Households | 1985 |
| Millan Holdings Limited | Real estate | 2018 |
| Naturally Innovative Limited | Professional & scientific | 2006 |
| Nicholas Barker Productions Limited | Arts & recreation | 2010 |
| North & Warren UK Ltd | Information & communication | 2021 |
| NW3 Flooring D.I.Y Ltd | Wholesale & retail | 2022 |
| NW3 Services Ltd | Households | 1999 |
| Okira Holdings Ltd | Professional & scientific | 2018 |
| Omakase Hampstead Ltd | Hospitality | 2023 |
| Oncue Transport Limited | Transport & logistics | 2022 |
| Plumbright Services Limited | Construction | 2003 |
| Positiv LLP | | 2008 |
| Positiv-Id Limited | Arts & recreation | 2000 |
| Positiv-Id Touring Limited | Arts & recreation | 2003 |
| Production Friend Limited | Professional & scientific | 2004 |
| R&Jon Limited | Other services | 2023 |
| Red Thread Ltd | Arts & recreation | 2022 |
| ROB Halford Entertainment Limited | Professional & scientific | 1999 |
| ROB Halford Music Limited | Arts & recreation | 1982 |
| Rosslyn Court(Hampstead)Management Limited | Real estate | 1972 |
| Rovida Advisors (UK) Limited | Professional & scientific | 2014 |
| Russchar Limited | Financial services | 1974 |
| Sanctum Burrows Limited | Real estate | 2022 |
| Souvlakia Hampstead Ltd | Hospitality | 2024 |
| T K (Hampstead) Limited | Real estate | 2001 |
| THE Catto Gallery Limited | Wholesale & retail | 2009 |
| THE Charities Advisory Trust | Health & social care | 1994 |
| THE Heaths Management Co. Ltd. | Extraterritorial | 1999 |
| THE London City Consultancy Ltd | Professional & scientific | 2015 |
| TK (Lettings) Limited | Administrative & support | 2004 |
| TK Residential Limited | Administrative & support | 2017 |
| UCS Education Services Ltd | Education | 2019 |
| Vinyl Room Limited | Arts & recreation | 2001 |
| Watts and Knots Limited | Professional & scientific | 2021 |
| Welford House Residents Limited | Households | 2001 |
| Whisky for Everyone Limited | Information & communication | 2017 |
| Whitestone Property Services Limited | Real estate | 2017 |
| Wyndawn Residents Company Limited | Real estate | 1987 |
| Yuhei Ltd | Other services | 2016 |