| Wesley Trading Ltd | Professional & scientific | 2023 |
| West 10 Trading Limited | Hospitality | 2015 |
| West 3 PCN Limited | Health & social care | 2022 |
| West and Foster Limited | Extraterritorial | 2010 |
| West Bar Property Rentals Ltd | Construction | 2019 |
| West Bridgford Portraits Limited | Professional & scientific | 2022 |
| West Control Systems Limited | Professional & scientific | 2017 |
| West Cumbria Mining (Holdings) Limited | Mining & quarrying | 2010 |
| West Cumbria Mining Limited | Mining & quarrying | 2010 |
| West Electrical Services Limited | Construction | 2016 |
| West Harmon Ltd | Professional & scientific | 2023 |
| West Hill House Limited | Real estate | 1989 |
| West House Flats Company Limited | Households | 1967 |
| West Istanbul Limited | Hospitality | 2022 |
| West Midlands Sectional Buildings Company Limited | Real estate | 1958 |
| West One Sushi Limited | Hospitality | 2019 |
| West Point One Management Company Limited | Households | 2002 |
| West Royd Amenity Company Limited | Real estate | 1998 |
| West Royd Flats Limited | Households | 2025 |
| West Royd Management Company Limited | Professional & scientific | 1998 |
| West Street Enterprise Ltd | Wholesale & retail | 2011 |
| West Street Leisure Limited | Real estate | 2013 |
| West Street Newsagents (MJ) Limited | Wholesale & retail | 2018 |
| West Street Plaza (Sheffield) Management Company Limited | Households | 2001 |
| West Style Food Ltd | Hospitality | 2024 |
| WEST10 Developments Ltd | Construction | 2022 |
| WEST210 Training Ltd | Education | 2020 |
| Westbeech Music Limited | Information & communication | 2013 |
| Westbourne Art Limited | Wholesale & retail | 2025 |
| Westbourne Court Management Company Limited(The) | Households | 1986 |
| Westbourne Leisure Holdings Limited | Financial services | 2017 |
| Westbourne Management (Sheffield) Limited | Households | 1991 |
| Westbourne Professional Limited | Wholesale & retail | 2016 |
| Westbourne River Ltd | Information & communication | 2012 |
| Westbourne School Trust Limited | Education | 1968 |
| Westbourne Sourdough Bakery Ltd | Manufacturing | 2019 |
| Westbrook Global Ltd | Other services | 2021 |
| Westbrook Holdings Limited | Professional & scientific | 2007 |
| Westbrook Light Alloys Limited | Manufacturing | 2009 |
| Westbrook Metal Powders Limited | Manufacturing | 2009 |
| Westbrook Operations Limited | Professional & scientific | 2008 |
| Westbrook Recycling Limited | Water & waste | 2008 |
| Westbrook Resources Limited | Wholesale & retail | 2000 |
| Westc Ltd | Wholesale & retail | 2026 |
| Westcott Medical Limited | Health & social care | 2019 |
| Westcourt Financial Services Limited | Financial services | 1964 |
| Westcroft Properties Limited | Real estate | 2012 |
| Westcrown Limited | Professional & scientific | 2002 |
| Westdale Services Limited | Construction | 2001 |
| Westerman Analytics Ltd | Information & communication | 2020 |
| Westfield Contributory Health Scheme Limited | Financial services | 1935 |
| Westfield Employment Services Ltd | Administrative & support | 2015 |
| Westfield Health & Wellbeing Ltd | Health & social care | 2015 |
| Westfield Health Ltd | Financial services | 2016 |
| Westfield Property Solutions Ltd. | Real estate | 2009 |
| Westfield Shovels Limited | Administrative & support | 1999 |
| Westfield Terrace Limited | Hospitality | 2026 |
| Westfold Products Limited | Manufacturing | 1985 |
| Westfoot Investments Limited | Financial services | 2013 |
| Westform Limited | Construction | 2018 |
| Westgate Property Investments (Worksop) Limited | Construction | 2012 |
| Westhills Property Ltd | Other services | 2022 |
| Westlake Support Services Ltd | Administrative & support | 2018 |
| Westlon Electrical Contractors Limited | Construction | 2013 |
| Westminster Car Sales Ltd | Wholesale & retail | 2025 |
| Westminster Personal Care Ltd | Administrative & support | 2008 |
| Westmor Developments Ltd | Construction | 2025 |
| Westmor Property Holdings Ltd | Real estate | 2026 |
| Weston Park Trading Limited | Wholesale & retail | 1994 |
| Westrock Ventures Ltd | Wholesale & retail | 2024 |
| Westside Independent Financial Advisors Ltd | Financial services | 2015 |
| Westside Independent Financial Services LLP | | 2004 |
| Westside Inspection Services Ltd | Professional & scientific | 2009 |
| Westside Publications Limited | Information & communication | 1998 |
| Westside Wills & Estate Planning Ltd | Financial services | 2019 |
| Westville Therapy Supplies Limited | Wholesale & retail | 2015 |
| Westwell Court Management Company Limited | Households | 2016 |
| Westwick Holdings Limited | Real estate | 1985 |
| Westwick Works Developments Limited | Real estate | 1993 |
| Westwickhouse Ltd | Construction | 2024 |
| Westwood 2015 Limited | Education | 2015 |
| Westwood Conversions Ltd | Manufacturing | 2023 |
| Westwood Joinery & Construction Limited | Construction | 2007 |
| WET THI Whistle Limited | Hospitality | 2017 |
| Wett & Windy Limited | Construction | 2007 |
| Weverproof Ltd | Arts & recreation | 2015 |
| Wewize Ltd | Wholesale & retail | 2024 |
| WEY Compliance Consulting Limited | Professional & scientific | 2017 |
| Weybridge Sports Ltd | Arts & recreation | 2015 |
| Weyland Road Management Company Limited | Households | 2019 |
| Weymark Limited | Real estate | 1996 |
| Weymead Holdings Limited | Financial services | 2014 |
| Wezee Trading Ltd | Wholesale & retail | 2019 |
| WFM Consulting Solutions Limited | Information & communication | 2014 |
| WG Security Installations Limited | Administrative & support | 2023 |
| WGT Properties Ltd | Real estate | 2021 |
| WH Assess Ltd | Construction | 2026 |
| WH Garage Specialists Limited | Construction | 2017 |
| Whale Selection Limited | Wholesale & retail | 2025 |
| Whall Building Limited | Construction | 2024 |