| Ayup Limited | Professional & scientific | 2006 |
| B & M Watson Ltd | Agriculture & fishing | 2003 |
| B Mann TM Ltd | Construction | 2017 |
| B. & J. Haulage Limited | | 1986 |
| B. & M. Harland Limited | Wholesale & retail | 1998 |
| B. & N. Batty (Builders) Limited | Construction | 1977 |
| B.B. Homes (UK) Limited | Real estate | 2004 |
| B.D. Gilchrist Security & Communications (UK) Limited | Construction | 2003 |
| Back Yard Properties (Long Preston) Limited | Real estate | 2005 |
| BAG & Baggage Limited | Wholesale & retail | 1975 |
| Baltic UK Limited | Professional & scientific | 1995 |
| Bargis Export Ltd | Wholesale & retail | 2026 |
| Barnetts Hair Associates Limited | Other services | 2006 |
| Bathrooms Direct & Bathroom Decor Limited | Wholesale & retail | 2001 |
| Bay Courts Management(Filey)Limited | Real estate | 1961 |
| BE Home Limited | Construction | 2006 |
| Bedale Golf Club Trading Limited | Arts & recreation | 2016 |
| Beedem Limited | Extraterritorial | 2005 |
| Belzona Limited | Manufacturing | 1996 |
| Belzona-Z Limited | Professional & scientific | 2007 |
| Benson Fencing Limited | Construction | 2006 |
| Bentley Holdings Limited | Construction | 2000 |
| Bilton Park Limited | Hospitality | 1993 |
| Bilton Pet Hotel Limited | Administrative & support | 2005 |
| Bitpulse Limited | Information & communication | 2007 |
| Black Cat Tattoo Ltd | Other services | 2005 |
| Blind Tech Limited | Construction | 2002 |
| Blue Event Horizon Limited | Information & communication | 2007 |
| Blue Ocean for Trade Ltd | Wholesale & retail | 2026 |
| Blueline Taxis (Harrogate) (1981) Limited | Professional & scientific | 1981 |
| Boltworthy Limited | Wholesale & retail | 1986 |
| Bond Jewellers (Scarborough) Limited | Wholesale & retail | 2002 |
| Bookjudge Limited | Wholesale & retail | 1995 |
| Bootham School | Education | 1982 |
| Boro Tyres and Exhausts Limited | Wholesale & retail | 1978 |
| Boroughbridge Insurance Brokers Limited | Financial services | 2009 |
| Bossman Limited | Professional & scientific | 1994 |
| Botham Limited | Wholesale & retail | 2018 |
| Bower Road Management Company Limited | Real estate | 2006 |
| Bradleys Jewellers Limited | Wholesale & retail | 2005 |
| Breckenbrough School Limited | Education | 2007 |
| Brian Woods Joinery Limited | Construction | 2003 |
| Brideshead Golf & Country Club Limited | Real estate | 1990 |
| Bright Steels Limited | Manufacturing | 1919 |
| Brittanniacourt Leisure Limited | Hospitality | 1990 |
| Broadland Properties Consultancy Limited | Professional & scientific | 1996 |
| Broadland Properties Estates Limited | Real estate | 1973 |
| Broadland Properties Limited | Agriculture & fishing | 1950 |
| Brockfield Hall Limited | Arts & recreation | 2006 |
| Bronte Caravan Park Limited | Hospitality | 2006 |
| Bronte Caravan Storage Limited | Real estate | 2006 |
| Bronzerapid Limited | Financial services | 2007 |
| Brooksbank Holdings Limited | Professional & scientific | 2007 |
| Bsgt Properties Limited | Real estate | 2007 |
| Buchanan (1983) Limited | Hospitality | 1962 |
| Budge (Holdings) Limited | Financial services | 2004 |
| Budge and Company Limited | Financial services | 1974 |
| Bullough Contract Services Limited | Administrative & support | 2008 |
| Business Continuity Matters Ltd | Professional & scientific | 2023 |
| Buxton Restaurants Ltd | Hospitality | 2021 |
| C & a Brack Ltd | Health & social care | 1998 |
| C & D Scaife Limited | Transport & logistics | 2003 |
| C & K Wood (U.K.) Limited | Agriculture & fishing | 2001 |
| C JAY (Whitby) Ltd | Construction | 2007 |
| C P Houses Ltd | Real estate | 2007 |
| C. M. Slater Limited | Construction | 2003 |
| C. Milner & Sons Limited | Wholesale & retail | 1999 |
| C.H.Major & Co.Limited | Real estate | 1914 |
| C.K.Batchelor Limited | Construction | 1971 |
| Cadwise UK Ltd | Information & communication | 1997 |
| Calamander Consulting Limited | Professional & scientific | 2007 |
| Calverts Carpets Limited | Wholesale & retail | 1999 |
| Canaan Technology Ltd. | Information & communication | 1985 |
| Care & Independence Ltd | Manufacturing | 2001 |
| Caroline Gardner Design Ltd. | Wholesale & retail | 2005 |
| Carprug Limited | Manufacturing | 2003 |
| Casson Developments Limited | Real estate | 1971 |
| Castle Howard Investments Limited | Professional & scientific | 1979 |
| Castle Plan Limited | Wholesale & retail | 1995 |
| Castle Repros. (Skipton) Limited | Wholesale & retail | 1985 |
| CAU Limited | Professional & scientific | 2008 |
| Cavendish Jewellers Ltd | Wholesale & retail | 2003 |
| Ccmc International Ltd | Professional & scientific | 1998 |
| Central Property Developments (Scarborough) Limited | Administrative & support | 2007 |
| Changespan Property Management Limited | Extraterritorial | 1996 |
| Chaos Laboratory Limited | Professional & scientific | 1993 |
| Chapel Flats Management Company Limited | Households | 2005 |
| Chapmans Butchers Limited | Wholesale & retail | 2003 |
| Charles Kendrew (Metalworkers) Limited | Manufacturing | 1960 |
| Charles Wilkinson Financial Planning Limited | Financial services | 2005 |
| Chas.Long & SON Limited | Transport & logistics | 2005 |
| Chris Anderson Plumbing and Heating Limited | Construction | 2004 |
| Chris JAY Music Ltd | Wholesale & retail | 2009 |
| Chris Naylor Research Limited | Information & communication | 1996 |
| Churchside Arcade Limited | Real estate | 2003 |
| CIE International Education Group Limited | Education | 1995 |
| Circuit Music Limited | Information & communication | 1983 |
| CJ Psychology Ltd | Professional & scientific | 2021 |
| Clarity Office Solutions (Pennine) Limited | Information & communication | 2008 |
| Clarke's Environmental Limited | Construction | 2006 |