| Lansdown Ventures Ltd | Wholesale & retail | 2022 |
| Lansdown View Ltd | Construction | 2020 |
| Lansdown Villas (Bath) Management Company Limited | Households | 2013 |
| Lanston House Properties Ltd | Real estate | 2018 |
| Lanterna Magicka Films Limited | Information & communication | 2009 |
| Lanz Properties Limited | Professional & scientific | 2020 |
| Lapin Restaurant Ltd | Hospitality | 2025 |
| Larchmont Construction Ltd | Construction | 2026 |
| Larchmont Ltd | Financial services | 2026 |
| Larchventures Ltd | Wholesale & retail | 2026 |
| Larkhall Athletic Football Club Foundation | Education | 2026 |
| Larkhall Butchers (Widcombe) Ltd | Wholesale & retail | 2020 |
| Larkhall Butchers Limited | Wholesale & retail | 2015 |
| Larkhall Festival | Arts & recreation | 2012 |
| Larkhall Hardware Limited | Wholesale & retail | 2025 |
| Larkhall Provisions Limited | Wholesale & retail | 2025 |
| Larkhall Sports Club | Arts & recreation | 2015 |
| Larkyn Limited | Wholesale & retail | 2017 |
| Larsson Consultancy Ltd | Arts & recreation | 2018 |
| LAS Bandas BE Brave Ltd | Information & communication | 2015 |
| Laser-Dent Limited | Health & social care | 2011 |
| Latchem Roofing Limited | Construction | 2003 |
| Lateral Ventures Limited | Wholesale & retail | 2014 |
| Latona Leisure Limited | Hospitality | 1993 |
| Laura Heald Consultancy Limited | Professional & scientific | 2025 |
| Laurie Hillie Creative Ltd | Information & communication | 2019 |
| Laurie House Management Company Limited | Households | 2005 |
| Laverton Consultancy Limited | Administrative & support | 2013 |
| Lawrence Harrison Limited | Administrative & support | 2006 |
| Layer Cakez Limited | Manufacturing | 2024 |
| Laymui Limited | Real estate | 2007 |
| Lazzez Kebab Shop Ltd | Hospitality | 2024 |
| LB Contract & Maintenance Limited | Construction | 2025 |
| LB3 Ltd | Professional & scientific | 2023 |
| Lcas Property Limited | Real estate | 2021 |
| LE Barbier Limited | Other services | 2021 |
| LE Fevre Management UK Ltd | Transport & logistics | 2024 |
| LE FOU Retail Investments Limited | Wholesale & retail | 2025 |
| Leadership Coaching Limited | Professional & scientific | 2000 |
| Leadership Together Limited | Professional & scientific | 2023 |
| Leads the Field Ltd | Hospitality | 2019 |
| Lean Legal Limited | Professional & scientific | 2014 |
| Leap and Bound Ltd | Arts & recreation | 2018 |
| Leap Creative Collective Ltd | Professional & scientific | 2024 |
| Learnhgv.Tuition Limited | Education | 2025 |
| Learning Five Limited | Information & communication | 2015 |
| Leather Chairs of Bath Limited | Wholesale & retail | 2003 |
| Leaze and Heath Limited | Wholesale & retail | 2018 |
| Ledborough Consulting Services Ltd | Hospitality | 2023 |
| LEE George Properties and Lettings Ltd | Real estate | 2024 |
| Left Right and Centre Ltd | Other services | 2017 |
| Legal Project Management Limited | Professional & scientific | 2012 |
| Legg & Willis Ltd | Hospitality | 2012 |
| Leigh Goodchild Limited | Construction | 2008 |
| Leleka UK Ltd | Wholesale & retail | 2015 |
| Lemon Cove Consultants Ltd | Professional & scientific | 2016 |
| Leones Homes Limited | Health & social care | 1987 |
| Leonreidoly Limited | Arts & recreation | 2024 |
| Lepus Energy Limited | Professional & scientific | 2025 |
| Lequin Ltd | Professional & scientific | 2003 |
| LES Amandiers Ltd | Wholesale & retail | 2011 |
| Let's Go Girls Ltd | Arts & recreation | 2025 |
| Let's Talk Dirty Ltd | Administrative & support | 2024 |
| Letora Property Management Ltd | Real estate | 2025 |
| Letsource Limited | Real estate | 2021 |
| Letting Properties.Com Ltd | Real estate | 1999 |
| Lewis Gray (Estate Agents) Limited | Real estate | 2007 |
| Lewis Property Estates Ltd | Real estate | 2024 |
| LG Data Solutions Limited | Information & communication | 2015 |
| Liam Fahy Limited | Administrative & support | 2010 |
| Liam Goldstone Limited | Hospitality | 2025 |
| Liane Hanks Holdings Ltd | Financial services | 2026 |
| Liane Hanks Residential Limited | Real estate | 2013 |
| Liberating IO Limited | Professional & scientific | 2024 |
| Lick IT Limited | Hospitality | 2002 |
| Lido Property Ltd | Real estate | 2015 |
| Lieb Productions Limited | Real estate | 2018 |
| Life in the Old Dogs CIC | Health & social care | 2025 |
| Lifebold Ltd | Professional & scientific | 2026 |
| Lifecare Chemistry Ltd | Professional & scientific | 2022 |
| Lifeflow Manifestation Ltd | Other services | 2025 |
| Lifepsycle Limited | Health & social care | 2001 |
| Lifestyle Pharmacy Westgate Limited | Wholesale & retail | 2012 |
| Lifestyle Without Limits Ltd | Professional & scientific | 2025 |
| Lift the Bar Limited | Arts & recreation | 2016 |
| Light Education Training Ltd | Wholesale & retail | 2014 |
| Light in the Tower Games Ltd | Information & communication | 2024 |
| Light in the Tower LLP | | 2022 |
| Lighthouse Experience Limited | Information & communication | 2007 |
| Lighthouse Psychology Associates Limited | Professional & scientific | 2002 |
| Lightistry Ltd | Professional & scientific | 2018 |
| Like SO Ltd | Professional & scientific | 2024 |
| Likeminded Autoworks Ltd | Wholesale & retail | 2022 |
| Likeminded Group Ltd | Financial services | 2022 |
| Lily Fivefold Limited | Health & social care | 2023 |
| Lily-Flame Holdings Ltd | Manufacturing | 2020 |
| Lily-Flame Ltd | Manufacturing | 2005 |
| Lilybean Ltd | Professional & scientific | 2025 |
| Lime Tree Meadow Ltd | Hospitality | 2026 |
| Lin&Studio Ltd | Wholesale & retail | 2025 |