| 1927 Trading Limited | Manufacturing | 2021 |
| 214FOODDRINK Ltd | Hospitality | 2023 |
| 53 Elder Avenue Limited | Households | 1995 |
| A & K Hind Limited | Construction | 2003 |
| A Head of Style Ltd | Other services | 2024 |
| Adam Brayton Ltd | Arts & recreation | 2017 |
| Advanced Safety Education and Training Limited | Education | 2014 |
| Advanced Solar Systems Limited | Construction | 2010 |
| Adventure Challenge Limited | Arts & recreation | 2014 |
| Adventure NAC Limited | Professional & scientific | 2024 |
| Ajcw Group Ltd | Financial services | 2018 |
| Andiy Ltd | Information & communication | 2018 |
| APS Partnership Limited | Administrative & support | 2002 |
| Archipelago Azores Limited | Extraterritorial | 2011 |
| Armathwaite Hall Hotel Limited | Hospitality | 1976 |
| Asaya Thai Limited | Hospitality | 2022 |
| Ashness Farm Limited | Other services | 2012 |
| Atack Properties Limited | Real estate | 2020 |
| Atkinson Joinery Limited | Construction | 2003 |
| Atom Packs Limited | Manufacturing | 2018 |
| B & T Developments (Cumbria) Limited | Construction | 2018 |
| Badger Adventure D of E Limited | Administrative & support | 2023 |
| Badger Adventures D of E LLP | | 2018 |
| Barn OWL Property Services Ltd | Construction | 2025 |
| Battersby Hall Management Company Limited | Households | 2020 |
| Bealuk Limited | Wholesale & retail | 2016 |
| Beament Property Group Ltd | Real estate | 2025 |
| Berryclark Limited | Hospitality | 2024 |
| Beyond Fitness Keswick Limited | Arts & recreation | 2022 |
| Biotechnology Business Development Limited | Professional & scientific | 2011 |
| Birkett Civil Engineering Limited | Construction | 2023 |
| Birkett Steel Engineering Ltd | Manufacturing | 2024 |
| Blackrock Geological Limited | Professional & scientific | 2003 |
| Blackthorn Close Residents Management Company Limited | Households | 2023 |
| Blease Road (Threlkeld) Limited | Households | 2022 |
| Blencathra Court Limited | Households | 2003 |
| BOB Graham Limited | Hospitality | 2025 |
| Bond Hospitality Holdings Ltd | Real estate | 2025 |
| Bonmont Accountants Ltd | Professional & scientific | 2025 |
| Book Local Ltd | Hospitality | 2019 |
| Borrowdale Bathrooms Limited | Wholesale & retail | 2019 |
| Bragabout Ltd | Other services | 2012 |
| Braithwaite House Limited | Real estate | 2021 |
| Braithwaite Village Shop Limited | Wholesale & retail | 2021 |
| Breaks in the Lakes Limited | Hospitality | 2025 |
| Brenmatch Limited | Financial services | 1998 |
| Brian Roper Limited | Construction | 2003 |
| Broadbents of Knutsford Limited | Wholesale & retail | 1968 |
| Broughton Cross Limited | Construction | 2004 |
| Brundholme Dental Practice Limited | Health & social care | 2007 |
| Brunswick Apartments Limited | Real estate | 2005 |
| Buttercup Lettings Ltd | Households | 2023 |
| CA12 Limited | Wholesale & retail | 2006 |
| Cafe Bar 26 (Keswick) Limited | Hospitality | 2012 |
| Cafe HNW Ltd | Hospitality | 2022 |
| Cafetable Limited | Hospitality | 2005 |
| Calvert Bridge Keswick Limited | Real estate | 2019 |
| Cape Wrath Ltd | Arts & recreation | 2026 |
| Carrick Wharmby Building Services Limited | Construction | 2022 |
| Carterbrook Investments Limited | Real estate | 2015 |
| Castlerigg Hall Caravan & Camping Park Unlimited | Hospitality | 2012 |
| Certified Organic Music Ltd | Information & communication | 2025 |
| Charm Nails Keswick Limited | Other services | 2023 |
| Charming Music Ltd. | Information & communication | 1988 |
| Chase Adventure Limited | Arts & recreation | 2013 |
| Chilli Tree Counselling Ltd | Health & social care | 2026 |
| Chiltern Adventure Limited | Other services | 2022 |
| Chris Hughes Limited | Professional & scientific | 2003 |
| Claire Barry Communications Limited | Professional & scientific | 2009 |
| Clay Roofing Services Limited | Construction | 2016 |
| Clays Gym Ltd | Arts & recreation | 2026 |
| Clear Approach Management Consultancy Limited | Professional & scientific | 2014 |
| Cloud Eleven Limited | Administrative & support | 2006 |
| Conference Business Agency Limited | Administrative & support | 2008 |
| Conquerlakedistrict Ltd. | Manufacturing | 2018 |
| Cosyboo Ltd. | Wholesale & retail | 2018 |
| County Express Limited | Transport & logistics | 2024 |
| Craft Beer Keswick Limited | Wholesale & retail | 2021 |
| Craig Woods Consulting Ltd | Information & communication | 2025 |
| Cresswell Close Limited | Construction | 2015 |
| Cumbria Arts and Culture Network Ltd | Education | 2022 |
| Cumbria Jewellery & Cash Competitions Limited | Other services | 2025 |
| Cumbria Jewellery Limited | Wholesale & retail | 2024 |
| Cumbria Stonework Limited | Construction | 2009 |
| Cumbria Theatre Trust | Arts & recreation | 1984 |
| Cumbrianeatz Ltd | Hospitality | 2025 |
| Cyclewise Whinlatter Ltd | Arts & recreation | 2007 |
| Cymascope Foundation Ltd | Professional & scientific | 2024 |
| D & a Harrison Limited | Construction | 2003 |
| D Abbott Plumbing and Heating Ltd | Construction | 2025 |
| Dale Head Hall Lakeside Hotel Limited | Hospitality | 1979 |
| DAN Magrin Commercial Property Investments Limited | Real estate | 2026 |
| David's Deliveries Ltd | Administrative & support | 2025 |
| DEB & DEB Enterprises Ltd | Hospitality | 2025 |
| Derwent Bay Investments Limited | Financial services | 2020 |
| Derwent Digital and Wireless Limited | Information & communication | 2016 |
| Derwent Joinery & Glazing Keswick Limited | Manufacturing | 2016 |
| Derwent Properties (1) Ltd | Real estate | 2026 |
| Derwentwater Barrow House Ltd | Hospitality | 2025 |
| Derwentwater Independent Hostel | Hospitality | 2011 |