| 6 Jesmond Gardens Limited | Newcastle Upon Tyne | 1985 |
| 6 Jubilee Road 2022 Management Company Limited | Weston-Super-Mare | 2022 |
| 6 Keppel Street Management Company Limited | Torpoint | 2007 |
| 6 Kestrel Avenue Property Limited | London | 2018 |
| 6 Kidderpore Gardens Management Company Limited | | 2002 |
| 6 Kilbourn Street Management Company Limited | Epping | 2020 |
| 6 King Edward's RD, Hackney Limited | London | 2001 |
| 6 Kings Road (Wimbledon) Management Limited | London | 1997 |
| 6 Kirkstall Road Limited | Croydon | 2004 |
| 6 Ladbroke Gardens Management Limited | Stanmore | 2001 |
| 6 Ladbroke Square Limited | | 2004 |
| 6 Lady Somerset Road Limited | Birmingham | 2005 |
| 6 Lanark Road Limited | London | 1983 |
| 6 Lancing Road Limited | Ilford | 2014 |
| 6 Lansdowne Square Limited | Dorchester | 2015 |
| 6 Larkfield Road Management Company Limited | Richmond | 2007 |
| 6 Lennard Road Management Company Limited | Croydon | 1993 |
| 6 Lewes Crescent Management Limited | | 1994 |
| 6 Lingfield Avenue Management Limited | Shoreham-By-Sea | 2010 |
| 6 Lofting Road Limited | London | 2024 |
| 6 Lombard Street RTM Company Limited | Ilford | 2007 |
| 6 London Road Cheltenham Management Company Limited | Harlow | 1992 |
| 6 London Road Residents Company Limited | Yaxley | 2021 |
| 6 Longbrook Terrace (Exeter) Management Company Limited | Twickenham | 2023 |
| 6 Lower Oldfield Park Management Company Limited | Bath | 1984 |
| 6 Lunham Road (Freehold) Limited | London | 2015 |
| 6 Lymington Road (NW6) Limited | London | 1998 |
| 6 Magdalen Road Ltd. | Bexhill-On-Sea | 2007 |
| 6 Major Terrace (Seaton) Limited | Seaton | 2019 |
| 6 Manor Drive (Surbiton) Management Limited | Surbiton | 1999 |
| 6 Maplestead Road Freehold Limited | London | 2020 |
| 6 Marine Parade (Hythe) RTM Company Limited | Horsham | 2013 |
| 6 Marine Parade Limited | Hythe | 2016 |
| 6 Marine Terrace Management Limited | Folkestone | 2025 |
| 6 Market Street (WEM) Management Limited | Shrewsbury | 2008 |
| 6 Marlborough Crescent Management Company Limited | London | 2022 |
| 6 Marlborough Road Management Company Limited | Altrincham | 2022 |
| 6 Marmora Road (Freehold) Ltd | London | 2017 |
| 6 Mason Avenue Limited | Whitley Bay | 1997 |
| 6 Maude Road Management Limited | London | 1998 |
| 6 Meadow Hill Road, Management Co. Limited | Marden | 1987 |
| 6 Melrose Place Limited | Bristol | 1973 |
| 6 Merchants Road Limited | Bristol | 2005 |
| 6 Mildmay Grove Limited | Waltham Abbey | 1989 |
| 6 Minet Gardens Management Limited | Oxon | 2018 |
| 6 Minford Gardens (Management) Limited | London | 2012 |
| 6 Mitcham Park Limited | Gerrards Cross | 2012 |
| 6 Model Terrace Ltd | London | 2020 |
| 6 Monmouth Place Residents Association Limited | Stanmore | 1995 |
| 6 Montpelier Grove Limited | Kings Lynn | 2007 |
| 6 Montpelier Road RTM Company Limited | Harlow | 2015 |
| 6 Moreton Place Limited | | 1997 |
| 6 Morna Road Management Limited | London | 2009 |
| 6 Mount Road Freehold Limited | London | 2024 |
| 6 Mount Street Ltd | Plymouth | 2025 |
| 6 Nairn Road Management Company Ltd | Bournemouth | 2025 |
| 6 Nassington Road Management Company Limited | | 2001 |
| 6 Nevill Terrace Limited | Tunbridge Wells | 2022 |
| 6 New Church Road Hove Residents Limited | East Sussex | 2000 |
| 6 Newport Terrace Management Company Limited | Barnstaple | 1991 |
| 6 Nightingale Court Colchester Limited | Colchester | 2000 |
| 6 Nile Path Freehold Limited | London | 2024 |
| 6 Norrisville Management Company Limited | | 2005 |
| 6 North Common Road Limited | London | 2003 |
| 6 Northcote Road Clifton Management Company Limited | Bristol | 1999 |
| 6 Oakfield Road Management Company Limited | Bristol | 2015 |
| 6 Oakwood Court Freehold Limited | London | 2023 |
| 6 Offord Road N1 Limited | London | 2016 |
| 6 Oldfield Road (Bath) Limited | Bath | 1984 |
| 6 Orchard Gardens RTM Company Limited | Teignmouth | 2021 |
| 6 Orchard Gardens Teignmouth Management Company Limited | Torquay | 2001 |
| 6 Osborne Road Management Company Limited | Bristol | 1995 |
| 6 Ospringe Road NW5 Limited | | 1996 |
| 6 Owls Road Freehold Limited | Bournemouth | 2002 |
| 6 Owls Road Management Company Limited | Bournemouth | 2000 |
| 6 Paddenswick Road Limited | London | 2014 |
| 6 Palace Gate Property Managment Limited | London | 2011 |
| 6 Palmeira Avenue Limited | Hove | 2000 |
| 6 Palmeira Square (Hove) Limited | Hove | 2004 |
| 6 Park Avenue Limited | Thatcham | 2000 |
| 6 Park Place Management Company Limited | Weston-Super-Mare | 2021 |
| 6 Park Road Harrogate Limited | Harrogate | 2002 |
| 6 Park Road Management Company Limited | Purley | 2008 |
| 6 Park Road Residents Ltd | Bognor Regis | 2014 |
| 6 Pembridge Villas Management Limited | Croydon | 1990 |
| 6 Percival Terrace Management Company Limited | Hove | 2001 |
| 6 Petherton Road Limited | London | 2001 |
| 6 Phillimore Gardens Limited | London | 2000 |
| 6 Pinhoe Road Flat Management Company Limited | Exeter | 2008 |
| 6 Portland Place (Kemptown) Limited | Hove | 2020 |
| 6 Portland Place Bath Limited | Bath | 1991 |
| 6 Portland Rise (Freehold) Limited | Maldon | 2016 |
| 6 Portland Street Management Company Limited | Southampton | 2001 |
| 6 Preston Park Avenue (Brighton) Limited | East Sussex | 2001 |
| 6 Prince's Buildings (Clifton Bristol) Management Company Limited | Bristol | 1981 |
| 6 Priors Terrace Management Company Limited | North Shields | 2019 |
| 6 Queens Avenue, London N10 Limited | London | 1997 |
| 6 Queens Parade Limited | Bath | 1978 |
| 6 Queens Parade Management Company Limited | Cheltenham | 2008 |
| 6 Ramuz Drive RTM Company Limited | London | 2007 |