| 03979297 Limited | Wholesale & retail | 2000 |
| 10 Royal Crescent (Whitby) Management Company Limited | Households | 2002 |
| 13 Bagdale Management Company Limited | Households | 1982 |
| 13 Langcliffe Avenue Management Company Limited | Households | 1997 |
| 134 Acomb Road Management Company Limited | Real estate | 2002 |
| 14 East Parade (Harrogate) Limited | Hospitality | 2005 |
| 154 Castle Road Limited | Households | 2000 |
| 182 Ashmore Road Management Company Limited | Households | 1991 |
| 19 Lancaster Park Road Limited | Households | 1997 |
| 19 Royal Crescent Whitby (Management) Limited | Households | 1994 |
| 2 Foxoak Park Management Company Limited | Real estate | 2009 |
| 2 to 4 Westcliffe Mount (Harrogate) Management Company Limited | Households | 2005 |
| 21 Dragon Avenue (Harrogate) Limited | Households | 2005 |
| 23 Dragon Avenue Management Company Limited | Households | 2000 |
| 24 Esplanade Management Company Limited | Households | 1995 |
| 25 Kings Road, Harrogate Management Company Limited | Households | 1999 |
| 27 the Esplanade (Scarborough) Limited | Administrative & support | 1992 |
| 3 Abbey Terrace Management Company Limited | Households | 2001 |
| 34 Rutland Street Limited | Real estate | 2005 |
| 35 Westbourne Grove Management Company Limited | Households | 1989 |
| 37 Westcliffe Terrace Harrogate Limited | Households | 2003 |
| 3P Holdings Limited | Financial services | 2003 |
| 4 Church Square Property Management Limited | Real estate | 2007 |
| 53 Degree North Limited | Professional & scientific | 2007 |
| 54 Dragon View (Management Company) Limited | Households | 2003 |
| 59 Harlow Moor Drive (Management Company) Limited | Real estate | 2005 |
| 6 ALL Saints Flat Management Co Ltd | Households | 1996 |
| 64, Scarcroft Road, Management Limited | Households | 1984 |
| 68 Cornwall Road Management Company Limited | Households | 2004 |
| 7 Portland Street (York) Limited | Households | 1987 |
| 74 Leeds Road (Management Company) Limited | Real estate | 2004 |
| 83 Queen Street Filey Limited | Households | 1998 |
| A & P Sedman Limited | Wholesale & retail | 2003 |
| A D Lightfoot Limited | Agriculture & fishing | 2003 |
| A T M (York) Limited | Hospitality | 2005 |
| A. & M.E. Sawdon & SON Ltd | Construction | 2003 |
| A.H. O'Neill Language Services Limited | Professional & scientific | 2003 |
| A.P. Hodgson Farm Ltd | Agriculture & fishing | 2007 |
| A.R. Decorators Limited | Construction | 1992 |
| A1 Microwave Limited | Manufacturing | 2003 |
| A1 Utilities Limited | Professional & scientific | 2005 |
| Abbey Galleries (Whitby) Limited | Wholesale & retail | 1964 |
| Abdelsalam for Trade Ltd | Wholesale & retail | 2026 |
| Abka International General Trading Ltd | Wholesale & retail | 2026 |
| Abrasive Finishing Systems Limited | Wholesale & retail | 2002 |
| Absolute Bliss Limited | Other services | 2007 |
| Absolute Business Computing Solutions Limited | Information & communication | 2001 |
| Absolute Data Limited | Information & communication | 2006 |
| Abysis Limited | Professional & scientific | 2024 |
| Access Scaffolding (Yorkshire) Limited | Construction | 2003 |
| ACM Accountancy Limited | Professional & scientific | 2002 |
| Acresun Limited | | 1984 |
| Active Agronomy Ltd | Agriculture & fishing | 2004 |
| Adaptive GEO Limited | Information & communication | 2002 |
| Adgroup Ventures Limited | Manufacturing | 2006 |
| Adler & Allan Limited | Wholesale & retail | 1936 |
| AGA Clean Limited | Other services | 2008 |
| AGE UK Scarborough & District Trading Limited | Professional & scientific | 2000 |
| Aire Valley Builders Limited | Construction | 2007 |
| Airfield Aviation Limited | Professional & scientific | 2005 |
| Alan Kitching Developments Ltd | Construction | 2006 |
| Albion House (Whitby) Limited | Hospitality | 2004 |
| Albion Restaurants | Real estate | 1946 |
| Aldby Field Nurseries Limited | Agriculture & fishing | 2007 |
| Alex Coates (Tattooist) Limited | Other services | 2003 |
| ALL Keep Penning (Yorkshire) Limited | Administrative & support | 2007 |
| ALL Kitchens Great and Small Limited | Construction | 2005 |
| Allanson Limited | Agriculture & fishing | 2004 |
| Alligator Wholefoods Limited | Wholesale & retail | 2005 |
| Alpenrise Marketing Ltd | Professional & scientific | 2026 |
| Alvercroft Limited | Real estate | 1964 |
| Ambrosia Villa Management Limited | Real estate | 2005 |
| American Squeeze Crush Systems Limited | Wholesale & retail | 2006 |
| Amos Nelson,Limited | Agriculture & fishing | 1921 |
| Anagem Ltd | Information & communication | 2007 |
| Anaxas Business Services Ltd. | Professional & scientific | 2003 |
| Anderson Brown (Whitby) Ltd | Financial services | 2001 |
| Andrew Swinton Limited | Professional & scientific | 2004 |
| Andrews of Scarborough Limited | Wholesale & retail | 1971 |
| Anglotec Limited | Education | 1986 |
| Anovar Limited | Construction | 1991 |
| Appetite for Life Limited | Hospitality | 2001 |
| Aptitude Consulting Limited | Information & communication | 1998 |
| Aquavale Properties Ltd | Real estate | 2021 |
| Arbortech Tree Specialists Limited | Agriculture & fishing | 2003 |
| Archdash Limited | | 1985 |
| Areté Learning Services Ltd | Education | 2019 |
| Arrivain Fishing Company Limited | Agriculture & fishing | 1997 |
| Artschool Limited | Wholesale & retail | 1998 |
| Asenby Quarry Limited | Water & waste | 2008 |
| Assam Railways and Trading Company Limited(The) | Extraterritorial | 1881 |
| Assem Atiyah Ltd | Wholesale & retail | 2026 |
| Assigntown Property Management Limited | Households | 1993 |
| AT the Mill Limited | Extraterritorial | 2017 |
| Atlas Scaffolding (Harrogate) Limited | Construction | 2002 |
| Atul Shah Limited | Health & social care | 2002 |
| Austick Construction Limited | Construction | 1994 |
| Austin Reed International Limited | Administrative & support | 1964 |
| Autogas 2000 Leisure Limited | Wholesale & retail | 2002 |
| Aymara Limited | Real estate | 2000 |