| Esh Homes | Durham, County Durham | 5 | 5 |
| Witherslack Care & Education Initiatives | County Durham, Stockton on Tees | 4 | 4 |
| Faye Services | Manchester, Romiley Stockport | 2 | 2 |
| Acorn Care | Darlington | 4 | 3 |
| Jewson | Coventry | 3 | 22 |
| Barchester Healthcare Homes | Islington | 3 | 6 |
| North East Autism Society | County Durham | 3 | 2 |
| Rocsolid | County Durham | 3 | 2 |
| MGL Demolition | County Durham | 2 | 10 |
| Witherslack Group | South Lakeland | 2 | 4 |
| Priory Education Services | Hammersmith and Fulham | 2 | 6 |
| International Railway Heritage Consultancy | Richmondshire | 2 | 2 |
| Ald Group | Gateshead | 2 | 2 |
| Barclay Roofing | Stockton-on-Tees | 2 | 2 |
| Care Matters | Darlington | 2 | 2 |
| as Crocker Plasterers | Darlington | 2 | 2 |
| Durham County Carers Support | County Durham | 2 | 2 |
| IT Systems & Support | Darlington | 2 | 2 |
| Zumtobel Lighting | Hillingdon | 2 | 2 |
| Mott Macdonald | Newcastle upon Tyne | 1 | 60 |
| Jacobs | Leeds | 1 | 62 |
| Barnardos | Bristol, City of | 1 | 32 |
| Tarmac Trading | Birmingham | 1 | 42 |
| Aggregate Industries | Markfield | 1 | 35 |
| Land Use Consultants | Southwark | 1 | 14 |
| PWC | | 1 | 11 |
| Cushman & Wakefield | City of London | 1 | 16 |
| Geoffrey Robinson | Stockton-on-Tees | 1 | 10 |
| Newcastle University | Newcastle upon Tyne | 1 | 11 |
| Lloyd | Bishop Auckland | 1 | 9 |
| Lookers | Stockport | 1 | 8 |
| HC One | Darlington | 1 | 7 |
| Richmond Fellowship | Islington | 1 | 5 |
| Crossling | Newcastle | 1 | 7 |
| Cygnet Health Care | Sevenoaks | 1 | 6 |
| NT Sweeting Roofing Contractors | Stockton-on-Tees | 1 | 5 |
| Thompsons of Prudhoe | Northumberland | 1 | 4 |
| Innogy Emobility | Swindon | 1 | 4 |
| Orchard Information Systems | Newcastle upon Tyne | 1 | 4 |
| Critiqom | Bellshill | 1 | 3 |
| Keyring Living Support Network | Southwark | 1 | 3 |
| on A Roll Sandwich | Middlesbrough | 1 | 3 |
| Voyage Care | Lichfield | 1 | 3 |
| Rainton Construction | County Durham | 1 | 11 |
| Augean | Leeds | 1 | 3 |
| Deerness Fencing & Landscaping | County Durham | 1 | 3 |
| Groundwork North East | County Durham | 1 | 3 |
| Urbis Schreder | Basingstoke and Deane | 1 | 3 |
| A1 Foster Care | Darlington | 1 | 2 |
| DPS Software | Enfield | 1 | 2 |
| Durham County Council | County Durham | 1 | 2 |
| Forevercare | Sunderland | 1 | 2 |
| James A Jobling | Newcastle upon Tyne | 1 | 2 |
| Network Rail | London | 1 | 2 |
| Protocol Education | | 1 | 2 |
| Northumbrian Roads | Leicestershire | 1 | 5 |
| Secureshield | North Lanarkshire | 1 | 3 |
| Westwood Timber & Fencing | Richmondshire | 1 | 3 |
| Bishop Auckland Glazing Coltd | County Durham | 1 | 2 |
| Outdoor Ambition | Darlington | 1 | 2 |
| Ruskin Mill Trust | Stroud | 1 | 2 |
| Anglian Home Improvements | Norwich | 1 | 1 |
| Apse | Trafford | 1 | 1 |
| Arnfield Care | Cheshire East | 1 | 1 |
| Arriva Durham County | Sunderland | 1 | 1 |
| Arriva Transport Solutions | Sunderland | 1 | 1 |
| Benfield Hall D3 Care | County Durham | 1 | 1 |
| Bond Care Willington | County Durham | 1 | 1 |
| Bradbury Group | North Lincolnshire | 1 | 1 |
| Breedon Southern | Derby | 1 | 1 |
| Brian Robinson Machinery | Hambleton | 1 | 1 |
| Cade Care | Chesterfield | 1 | 1 |
| Clervaux Trust | Richmondshire | 1 | 1 |
| 700 Club | Darlington | 1 | 1 |
| Coleman Milne | Bolton | 1 | 1 |
| Connect Property North East | Stockton on Tees | 1 | 1 |
| County Durham & Darlington NHS Trust | County Durham | 1 | 1 |
| Daltons | County Durham | 1 | 1 |
| Darlington Rugby & Football Club | Darlington | 1 | 1 |
| Dene Valley Community Transport | County Durham | 1 | 1 |
| Designe | Gateshead | 1 | 1 |
| Details of Contractors are Published on Contracts Finder & OJEU Under Ref 2020 S255 554980 | Various | 1 | 1 |
| Differentia | Northumberland | 1 | 1 |
| Enhanced Care & Support | Middlesbrough | 1 | 1 |
| Epower Trucks | Oldham | 1 | 1 |
| Eppleton Quarry Products Limites | Durham | 1 | 1 |
| Esh Home Slimited | Durham | 1 | 1 |
| Friends of Stockton & Darlington Railway | Darlington | 1 | 1 |
| Greenblue Urban | Rother | 1 | 1 |
| G&A Security | Darlington | 1 | 1 |
| Hellens Investments Washington | Sunderland | 1 | 1 |
| Horizon Specialist Academies | Hollis Academy | 1 | 1 |
| Horizons Specialist Academy Trust | Stockton-on-Tees | 1 | 1 |
| Hurwoth House Priory | Darlington | 1 | 1 |
| Idpartnership | Newcastle upon Tyne | 1 | 1 |
| Inspire Care | Stoke-on-Trent | 1 | 1 |
| Jontek | Stockport | 1 | 1 |
| Kaleidoscope Care | Rochdale | 1 | 1 |
| KBR Keeping Business Running | Gateshead | 1 | 1 |
| Keys Group Progressive Care & Education | Rossendale | 1 | 1 |