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| 164 Limited | Porthcawl | 2010 |
| 164 Performance Ltd | Cardiff | 2024 |
| 1642 Limited | Wembley | 2000 |
| 1648 Ltd. | London | 2023 |
| 165 Queenstown Road Limited | London | 2003 |
| 165-171 Redlands Road Management Company Limited | Penarth | 1998 |
| 1650 Consulting Limited | Farnham | 2025 |
| 1650 Ltd | Taunton | 2025 |
| 1650 Solutions Ltd | Marlborough | 2026 |
| 1656 Ltd | London | 2018 |
| 166 Freehold Co Ltd | London | 2019 |
| 166 Taxis Ltd. | Edinburgh | 2014 |
| 1664 Coaching Ltd | Hexham | 2024 |
| 1664 Training Solutions Limited | Faringdon | 2024 |
| 167 Holdings Limited | Northwich | 2023 |
| 1671 Ltd | Calverley | 2017 |
| 16760986 Ltd | Bolton | 2025 |
| 16783515 Ltd | Cardiff | 2025 |
| 168 Chapter Road Limited | London | 2007 |
| 168 Money Limited | Birmingham | 2024 |
| 168 Planning Limited | Bromley | 2012 |
| 16829903 Ltd | Cardiff | 2025 |
| 16838254 Limited | London | 2025 |
| 16839509 Ltd | London | 2025 |
| 169 Fentiman Road Management Company Limited | London | 2001 |
| 169 Glenarm Road Management Limited | London | 2005 |
| 169 West END Lane Limited | London | 2007 |
| 1699 Ltd | Derby | 2019 |
| 16A Architecture Limited | Birkenhead | 2026 |
| 16A Productions Limited | Tunbridge Wells | 2021 |
| 16DEGREES67 Ltd | London | 2006 |
| 16EIGHTY Ltd | Ripon | 2020 |
| 16K Agency Limited | London | 2021 |
| 16NEWSTREETED Limited | Enniskillen | 2026 |
| 16S Tech Ltd | Radyr | 2019 |
| 16TH August Ltd | Benfleet | 2022 |
| 16X9 Media Limited | London | 2019 |
| 17 and 17A Uttons Avenue Limited | Leigh-On-Sea | 2007 |
| 17 Belmont Road Residents Company Limited | Wallington | 1989 |
| 17 Books Ltd | Kington | 2024 |
| 17 Burrows Road Limited | London | 2003 |
| 17 Callow Street Chelsea Limited | Lymington | 1978 |
| 17 Calthorpe Road Limited | Banbury | 1985 |
| 17 Capital Management Limited | London | 2026 |
| 17 Cistern Street Limited | Devon | 1998 |
| 17 Consultancy Ltd | London | 2023 |
| 17 Digits Ltd | Ilford | 2024 |
| 17 Energy Limited | London | 2023 |
| 17 Gledhow Gardens Management Company Limited | | 1999 |
| 17 Kingdon Road (Freehold) Company Limited | London | 2009 |
| 17 Lennox Gardens Limited | Hoddesdon | 2004 |
| 17 Lives Limited | Bristol | 2019 |
| 17 Russell Road Management Company Limited | Hampton Hill | 2022 |
| 17 Second Avenue Limited | London | 2010 |
| 17 Shubat Organisation Limited | Bolton | 2025 |
| 17 Solutions Consulting Ltd | Swindon | 2024 |
| 17 Sports Media Limited | London | 2022 |
| 17 Thorney Hedge Road Limited | Harrow | 1992 |
| 17 XL Ltd | Haslemere | 2019 |
| 17-17A Petersfield Road (Acton) Limited | London | 2016 |
| 17-20 Holmwood Close Limited | Sutton | 2013 |
| 17-22 Fairacre Management Company Limited | Maidenhead | 1986 |
| 17/19 Mantilla Road Management Company Limited | | 1999 |
| 17/20 Arlington Villas Management Company Limited | Shepton Mallet | 1988 |
| 170 Whitley Wood Road Reading Management Company Limited | Reading | 1989 |
| 170,000 Words Ltd | London | 2024 |
| 1704 Consulting Limited | Welling | 2013 |
| 1705 Consultancy Ltd | London | 2025 |
| 1708 Consultancy Ltd | Havant | 2026 |
| 171 Connect Ltd | Bristol | 2023 |
| 1710 Gaming Ltd | Twickenham | 2013 |
| 17125149 Ltd | London | 2026 |
| 1714 Partners Limited | Beckenham | 2025 |
| 1717 Studios Ltd | Redditch | 2021 |
| 171SOCIAL Limited | London | 2025 |
| 1729 Holdings Ltd | London | 2019 |
| 1732 Limited | Cannock | 2023 |
| 174 Projects Limited | Bournemouth | 2018 |
| 1749 Ltd. | Altrincham | 2023 |
| 175 Fentiman Road Limited | London | 2008 |
| 176 Blocks Ltd | Dunstable | 2022 |
| 176-178 High Street Management Limited | Aylesbury | 1983 |
| 176SPORT Limited | Romsey | 2022 |
| 177 Electrical Ltd | Sleaford | 2019 |
| 177 Kingsway (Hove) Limited | Hove | 2003 |
| 1775 York Limited | Richmond | 2025 |
| 177A Bleecker Street Limited | Manchester | 2025 |
| 178 - 202 Limited | London | 1887 |
| 178 Adelaide Avenue Management Company Limited | London | 2015 |
| 1781 Investments | London | 2019 |
| 1789 Group Ltd | London | 2020 |
| 1793 Ltd | London | 2024 |
| 1797 Group Ltd | London | 2025 |
| 17A Royds Lane Management Company Limited | Leeds West Yorkshire | 1995 |
| 17BRIDGES Ltd | Orpington | 2025 |
| 17CAPITAL GP Member Limited | London | 2017 |
| 17CAPITAL Newco Limited | London | 2016 |
| 17E Management Ltd | London | 2020 |
| 17G Creative Limited | Ruislip, | 2022 |