| Benacre (FB) Limited | Real estate | 2022 |
| Benacre (Holding) Limited | Financial services | 2016 |
| Benacre Properties (Holding) Limited | Financial services | 2016 |
| Benacre Properties Company Limited | Real estate | 2016 |
| Benechos Limited | Real estate | 2024 |
| Bengal Dine Ltd | Hospitality | 2023 |
| Bennetts Retail Trading Limited | Extraterritorial | 2011 |
| Best Start Puppy Training Ltd | Other services | 2023 |
| BGP Group Limited | Administrative & support | 2015 |
| Big Dog Services Limited | Other services | 2023 |
| Bison Electrical Services Ltd | Construction | 2015 |
| BKM Solutions Ltd | Administrative & support | 2020 |
| Blackcoat Limited | Extraterritorial | 2006 |
| Blackshore Investments Limited | Real estate | 2022 |
| Block Engineering Ltd | Professional & scientific | 2016 |
| Block Property Developments Limited | Construction | 2026 |
| Bmch Properties Ltd | Hospitality | 2010 |
| Boaters Hill Enterprises Limited | Other services | 2017 |
| Boddingtons Shipping Limited | Transport & logistics | 2001 |
| Bodyworkzone Limited | Wholesale & retail | 2011 |
| Bonneys Barn Ltd | Real estate | 2023 |
| Borderbus Limited | Transport & logistics | 2013 |
| Boujee Fizz Limited | Manufacturing | 2024 |
| Bounce Magazine Ltd | Information & communication | 2012 |
| Box Office UK Limited | Arts & recreation | 1999 |
| Boxtrees Nursery Limited | Wholesale & retail | 2009 |
| BPS (Stumps Cross) Limited | Agriculture & fishing | 2006 |
| Brampton Properties Limited | Real estate | 1999 |
| Breach Analytics Limited | Administrative & support | 2025 |
| Brennan Energy Ltd | Construction | 2018 |
| Brett Snowling Electrical Contractors Limited | Construction | 2009 |
| Brian Sabberton Limited | Construction | 1964 |
| BRICK2INVESTING Ltd | Real estate | 2022 |
| Bridgehead Foods Limited | Extraterritorial | 2002 |
| Brint Construction Project Management Ltd | Construction | 2019 |
| Broads Equestrian Ltd | Hospitality | 2026 |
| Bromley Homes Limited | Construction | 2005 |
| Bronzed Glow Ltd | Other services | 2023 |
| Brookfield Support Limited | Health & social care | 2026 |
| Broomacre Ltd | Real estate | 2018 |
| Brunch on the Go Ltd | Hospitality | 2025 |
| Brya Supplies Ltd | Wholesale & retail | 2024 |
| Bt&Prt Ltd | Administrative & support | 2026 |
| Buckenham Blast Cleaning Services Limited | Administrative & support | 2006 |
| Buckley & Lovell Ltd | Financial services | 2022 |
| Bumbletoft Limited | Extraterritorial | 2020 |
| Bungay School of Motoring Limited | Education | 2012 |
| Bunns Butchers Ltd | Wholesale & retail | 2024 |
| Bybethanyellentaylor Ltd | Other services | 2026 |
| C Harrison Business Services Ltd | Professional & scientific | 2021 |
| C Howlett and SON Limited | Construction | 2017 |
| C M Robinson Roofing Limited | Construction | 2010 |
| C&C Plant Ltd | Wholesale & retail | 2026 |
| C.C. Betts & SON Limited | Wholesale & retail | 2011 |
| CA Cole International Ltd | Wholesale & retail | 2017 |
| Cahira Nitinol Limited | Wholesale & retail | 2019 |
| California Sands Estate Ltd | Hospitality | 2021 |
| Capps-Jenner Electrical Contractors Limited | Administrative & support | 2017 |
| Carcom Bodyworks Ltd | Wholesale & retail | 2011 |
| Carey Offshore Services Ltd | Mining & quarrying | 2009 |
| Caring Forever Limited | Health & social care | 2012 |
| Carmanere Ltd | Professional & scientific | 2021 |
| Carpfishing Europe Ltd | Wholesale & retail | 2018 |
| Cascade Logic Ltd | Information & communication | 2025 |
| Cash Inn Limited | Wholesale & retail | 1999 |
| Castle Mews (Beccles) Limited | Households | 2019 |
| Catherine Thomas Ltd | Real estate | 2021 |
| Cclautos Ltd | Wholesale & retail | 2024 |
| Chairs and Tables Limited | Wholesale & retail | 2002 |
| Champion Design Conservatories Ltd | Construction | 2014 |
| Chapman Barmes Associates Limited | Real estate | 2007 |
| Chenerys Farm Ltd | Hospitality | 2022 |
| Chequerhouse Farm Limited | Agriculture & fishing | 2019 |
| Chicken Roundabout Finance Limited | Professional & scientific | 2017 |
| Church Products UK Limited | Manufacturing | 2020 |
| Cilerna Investments Ltd | Hospitality | 2019 |
| Cinnamon Beauty & Foot Health Ltd | Health & social care | 2026 |
| Circles for Communities Ltd | Information & communication | 2019 |
| CJB Roofing & Maintenance Limited | Construction | 2023 |
| CJB Safety Systems Limited | Construction | 2023 |
| CJB Scaffolding Ltd | Construction | 2017 |
| Cladiadent Ltd | Health & social care | 2024 |
| Clay Interiors Imports Ltd | Wholesale & retail | 2023 |
| Clay Interiors Ltd | Wholesale & retail | 2015 |
| Cleaver Transport Limited | Transport & logistics | 2018 |
| Clinks Care Farm | Professional & scientific | 2009 |
| CMA Heating Ltd | Construction | 2023 |
| Coastal Carpentry EA Ltd. | Construction | 2019 |
| Coastline Psychology Limited | Health & social care | 2015 |
| COD House Ltd | Hospitality | 2013 |
| Collect & Protect (UK) Ltd | Information & communication | 2016 |
| Commando Productions Limited | Administrative & support | 2002 |
| Concresco Ltd | Professional & scientific | 2003 |
| Consort Precision Engineering Limited | Professional & scientific | 2019 |
| Constructive Individuals (Builders) Limited | Professional & scientific | 2003 |
| Contemporary Supply Chain Ltd | Professional & scientific | 2025 |
| Cottage Farm Trustee Company Limited | Professional & scientific | 2003 |
| COX Construction and Groundworks Limited | Construction | 2023 |
| Cracking Crystals Ltd | Wholesale & retail | 2019 |
| Cracks Pet Foods Limited | Wholesale & retail | 2003 |