| Works 57 Ltd | Construction | 2013 |
| Workshop 2 Limited | Manufacturing | 2005 |
| Workshop Gymnastics Limited | Other services | 2006 |
| Workshop Partnership Gyms Limited | Other services | 2025 |
| Workside Limited | Information & communication | 2014 |
| Worksmarta Ltd | Professional & scientific | 2026 |
| Worksop Furnishings Ltd | Wholesale & retail | 2019 |
| Worksop Indoor Golf Centre Limited | Arts & recreation | 2009 |
| Worksopsofas Limited | Wholesale & retail | 2015 |
| Worktolife Limited | Transport & logistics | 2025 |
| Worktop Distribution Ltd | Transport & logistics | 2023 |
| Worktops and Worksurfaces Ltd | Wholesale & retail | 2019 |
| World Class Super Market Limited | Wholesale & retail | 2020 |
| World Expo Plus LLP | | 2012 |
| World Furnishings Ltd | Manufacturing | 2024 |
| World Hypnosis LLP | | 2009 |
| World Joint Publishing House Ltd | Information & communication | 2025 |
| World Journeys Limited | Administrative & support | 2025 |
| World of Bruce Limited | Arts & recreation | 2002 |
| World of Echo Ltd | Wholesale & retail | 2018 |
| World of Suites Limited | Wholesale & retail | 1997 |
| World of Superheroes Limited | Other services | 2010 |
| World Putting Championships Limited | Arts & recreation | 2012 |
| World Space Studios Limited | Professional & scientific | 2020 |
| Worldcomponents Ltd | Manufacturing | 2019 |
| Worlds Collide Limited | Manufacturing | 2025 |
| Worldwide Cleaning Services Limited | Administrative & support | 2023 |
| Worldwide Energy Limited | Wholesale & retail | 2024 |
| Worldwide Property Investments (2015) Limited | Real estate | 2015 |
| Worldwide Tools Limited | Wholesale & retail | 1973 |
| Worldwide Trim Ltd | Other services | 2025 |
| Worrall Community Association Limited | Other services | 2008 |
| Worrall Financial Management Limited | Financial services | 2015 |
| Worrall Road News Ltd | Wholesale & retail | 2015 |
| Worship.Church Ltd | Education | 2022 |
| Worth Hairdressing Limited | Other services | 2016 |
| Worth Management Ltd | Construction | 2023 |
| Worthington CAD Services Limited | Professional & scientific | 2020 |
| Worthwhile Occupational & Recreational Krafts Limited | Health & social care | 1995 |
| Worthy Developments Limited | Construction | 2010 |
| Wortley Cardiology Ltd | Health & social care | 2022 |
| Wortley Farm Shop Ltd | Wholesale & retail | 2025 |
| Wortley Game Ltd | Agriculture & fishing | 2014 |
| Wortley Golf Club Limited | Arts & recreation | 2020 |
| Wortley Rugby Union Football Club Limited | Arts & recreation | 2011 |
| Wortley Stores Limited | Wholesale & retail | 2009 |
| Wortley Top Forge Model Engineering Society Limited | Administrative & support | 2019 |
| Wortley Wagyu Ltd | Wholesale & retail | 2020 |
| Woteva Ltd | Wholesale & retail | 2024 |
| Wotleez Ltd | Wholesale & retail | 2018 |
| WOW Barber Ltd | Other services | 2026 |
| WOW Fitness Centre Limited | Arts & recreation | 2018 |
| WOW UK Limited | Construction | 2007 |
| WPA Surveyors Limited | Real estate | 2006 |
| Wpbg Ltd | Real estate | 2025 |
| Wplc Services Limited | Construction | 2018 |
| WR Catering Ltd | Hospitality | 2023 |
| WR Flooring Limited | Construction | 2012 |
| WR Project Consultants Ltd | Information & communication | 2014 |
| Wragg's Quality Meats Ltd | Wholesale & retail | 2024 |
| Wraithwood Holdings Limited | Financial services | 2024 |
| Wrbc Ltd | Hospitality | 2021 |
| Wrbcc CIC | Other services | 2024 |
| WRD Building Services Sheffield Ltd | Construction | 2014 |
| Wren Property Services Limited | Real estate | 2004 |
| Wretch 32 Limited | Arts & recreation | 2010 |
| Wretch 32 Touring Ltd | Arts & recreation | 2011 |
| Wrexowl Capital Limited | Real estate | 2025 |
| Wright Choice Carpets Limited | Wholesale & retail | 2015 |
| Wright GAS Services Ltd | Construction | 2026 |
| Wright Lund Holdings Ltd | Health & social care | 2021 |
| Wright Property Holdings Ltd | Real estate | 2024 |
| Wrights Relocation's Limited | Transport & logistics | 2015 |
| WRM Construction Ltd | Construction | 2021 |
| Wrong Number Limited | Information & communication | 2002 |
| Wroot Limited | Professional & scientific | 2025 |
| WRV Services Ltd | Administrative & support | 2019 |
| WRW Consultancy Ltd | Other services | 2020 |
| WRY Car Sales Ltd | Wholesale & retail | 2021 |
| WS (Directors) Limited | Administrative & support | 1998 |
| WS (Secretaries) Limited | Administrative & support | 1998 |
| WS Car Wash Ltd | Wholesale & retail | 2023 |
| WS Electrical Contracting Ltd | Construction | 2020 |
| WS Fire and Risk Compliance Ltd | Public administration | 2021 |
| WS Strategic Ltd | Professional & scientific | 2011 |
| WS Trustee Company Limited | Professional & scientific | 2002 |
| Wsfd Properties Ltd | Real estate | 2025 |
| WSP Guitars Ltd | Manufacturing | 2024 |
| WSS Skips & Waste Ltd | Water & waste | 2017 |
| WT Holdings Limited | Financial services | 2024 |
| WTE Medical Limited | Health & social care | 2024 |
| WTF Property Investing Limited | Information & communication | 2020 |
| WTG Survey Ltd | Professional & scientific | 2019 |
| WTS (Manufacturing) Limited | Manufacturing | 2001 |
| WTS Holdings Limited | Real estate | 2026 |
| WU Yize Snooker Company Limited | Arts & recreation | 2023 |
| WW CQS Limited | Construction | 2026 |
| WW Land & Property Limited | Real estate | 2020 |
| WW Operations Ltd | Other services | 2024 |
| WW Resources Ltd | Administrative & support | 2024 |