| Test Company Name 1 | 123456uk 2 | 14 Test Street 3 | Test Town 4 | TE5ET 6 | United Kingdom 7 | |
| dfdf | dfdf | xcxc | xcxc | xcxc | United Kingdom | |
| Gateshead Council | | Civic Centre | Regent Street | NE8 1HH | United Kingdom | |
| Northumbrian Water Group Limited | 4760441 | Northumbria House Abbey Road, Pity Me Durham | | DH1 5FJ | United Kingdom | |
| OS Energy Ltd. | 12580949 | Unit 33 North Tyne Industrial Estate, Benton | | NE12 9SZ | United Kingdom | |
| Lithium Salvage | 13617609 | Low Byre Low Fawnlees Farm, Leazes Lane | Wolsingham | DL13 3LP | United Kingdom | |
| PPSL District Heating Limited | 08359510 | A7 (Rear) Ashworth House, Suites 1&3 Deakins Business Park | Blackburn Road | BL7 9RP | United Kingdom | |
| Recovolt Ltd | 15498067 | 69 Church way | North Shields | NE29 0AE | United Kingdom | |
| METzero Technologies LTD | 15345831 | 2.22 Cassie Building | Newcastle University | NE1 7RU | United Kingdom | |
| Levidian Nanosystems Ltd | 08186993 | 17 Mercers Row | Cambridge | CB5 8HY | United Kingdom | |
| SSE Heat Networks | Durham University | The Software Centre Tavistock Place | Sunderland | SR1 1PB | United Kingdom | |
| Literal Labs | 14746541 | 3rd Floor Maybrook House | 27-35 Grainger Street | NE1 5JE | United Kingdom | |
| National Geothermal Centre | Durham University | Netpark Research Institute | Joseph Swan Road | TS21 3FB | United Kingdom | |
| AtkinsRéalis | | 5 Wellbrook Court | Cambridge | CB3 0NA | United Kingdom | |
| Carbon-Z | | 24 Watermint Quay | Craven Walk | N16 6DD | United Kingdom | |
| Johnson Matthey | | 1 Belasis Ave | Stockton-on-Tees | TS23 1LA | United Kingdom | |
| equiwatt | 09871368 | PROTO | Baltic Business Quarter | NE8 3DF | United Kingdom | |
| Levidian Nanosystems Ltd | 08186993 | 17 Mercers Row | Cambridge | CB5 8HY | United Kingdom | |
| STRYDE LIMITED | 12136455 | C/O Halkin, 1-2 Paris Garden, | London | SE1 8ND | United Kingdom | |
| OCULAR Metrology Limited | 16098192 | 71 Grey Street | | NE1 6EF | Newcastle upon Tyne | |
| AtkinsRealis | | Albany Court | Monarch Rd | NE4 7YB | United Kingdom | |
| North East Autism Society | 2859620 | 15 Lumley Court | Drum Industrial Estate | DH2 1AN | United Kindgom | |
| Jackson's Bakery Limited | 03974455 | 40 Derringham Street | Kingston-Upon-Hull | HU3 1EW | UK | |
| The Faraday Institution | 10959095 | Suite 4, 2nd Floor, Quad One, Becquerel Avenue, Harwell Campus, | Didcot | OX11 0RA | United Kingdom | |
| Johnson Matthey | | Technology Centre, Princeton Drive | Stockton-on-Tees | TS17 6PY | United Kingdom | |
| Biorenewables Development Centre Ltd | | Unit 1, Hassacarr Lane | Chessingham Park | YO19 5SN | United Kingdom | |
| Robinson Brothers Ltd | 00201053 | Phoenix Street | West Bromwich | B70 0AH | United Kingdom | |
| Consortium Drilling Ltd | 13475714 | Humber Road | Barton-Upon-Humber | DN18 5BN | United Kingdom | |
| Eden Geothermal Limited | 10216419 | Bodelva | Par | PL24 2SG | United Kingdom | |
| Orsted | | Eastside Road | Grimsby | DN31 3NB | United Kingdom | |
| RPS (Tetra Tech) | | Atholl Exchange | 1st Floor, 6 Canning Street | EH3 8EG | United Kingdom | |
| CPI Innovation Services Limited | 05735040 | The Wilton Centre | Wilton | TS10 4RF | United Kingdom | |
| Renewable Energy Northeast Universities Plus (ReNU+) | n/a | Northumbria University, Faculty of Engineering & Environment | Newcastle upon Tyne | NE1 8ST | United Kingdom | |
| Hydrogen Integration for Accelerated Energy Transitions (HI-ACT) | n/a | School of Chemical Engineering, College of Engineering and Physical Sciences | University of Birmingham | B15 2TT | United Kingdom | |
| Newcastle City Council | | Civic Centre, Newcastle upon Tyne | | NE1 8QH | UK | |
| Humber FreePort | 13470809 | Marina Court | Castle Street | HU1 1TJ | The United Kingdom | |
| Royal Air Force | Newcastle University | RAF Leeming | Northallerton | DL7 9NJ | United Kingdom | |
| Akzo Nobel Coatings International BV | | Christian Neefestraat 2 | | 1077 WW Amsterdam | the Netherlands | |
| Hull City Council | University of Hull | Guildhall Alfred Gelder Street | Kingston Upon Hull | HU1 2AA | United Kingdom | |
| East Riding of Yorkshire Council | University of Hull | County Hall Cross Street | Beverley | HU17 9BA | United Kingdom | |
| Durham County Council | | County Hall | Durham | DH1 5UF | United Kingdom | |
| City of Bradford Metropolitan District Council | University of Hull | Britannia House | Hall Ings | BD1 1HX | United Kingdom | |
| Siemens Gamesa Renewable Energy | | Sir William Siemens Way | Alexandra Dock (West) | HU9 1TA | United Kingdom | |
| Natural Engalnd | Lancaster House | Hampshire Court | Monarch Road, | NE4 7YH | United Kingdom | |
| The Marine Management Organisation | | Lancaster House | Hampshire Court | NE4 7YH | United Kingdom | |
| North East Combined Authority | | The Lumen | St James Boulevard | NE4 5BZ | United Kingdom | |
| Northern Powergrid | 03271033 | Lloyds Court | 78 Grey St | NE1 6AF | UK | |
| GEOTHERMAL WELLS UK LIMITED | 15621788 | Portland House | Belmont Business Park | DH1 1TW | England | |
| Tarmac, a CRH company | 453791 | Ground Floor T3 Trinity Park | Bickenhill Lane | B37 7ES | United Kingdom | |
| Cleansing Service Group (CSG) Limited | | Stapylton Street | Bolckow Ind Est | TS6 7BJ | United Kingdom | |
| ITA GmbH | | Otto-Blumenthal-Str. 1 | Aachen | 52074 | Germany | |
| Ryder Geotechnical Limited | 10468471 | Earl Grey House | Grey Street | NE1 6EF | United Kingdom | |
| NATIONAL TRUST (ENTERPRISES) LIMITED (THE) | 01083105 | Holy Jesus Hospital | City Rd | NE1 2AS | United Kingdom | |
| Hybrid Gasification Ltd | 06399083 | West Road | Newcastle Upon Tyne | NE15 6PR | United Kingdom | |
| Red Engineering Design Ltd | | 2nd Floor Maling Exchange | Hoults Yard | NE6 2HL | UK | |
| Cathie Associates Limited | 05675974 | Solomon House | 2-4 Hanover Square | NE1 3NP | United Kingdom | |
| Sustainable Energy Efficient Designed Structures Ltd | | Netpark Plexus | Thomas Wright Way | TS21 3FD | United Kingdom | |
| Peel Ports Group Ltd | 05965116 | Maritime Centre | Port of Liverpool | L21 1LA | UK | |
| Prozomx | 06517696 | Building 4 West End Industrial Estate | | NE49 9HA | UK | |
| Ebac | Maher Al-Greer, Associate Professor, Teesside University | Ketton Way, Aycliffe Business Park, Newton | Aycliffe, County Durham | DL5 6SQ | United Kingdom | |
| Cleansing Service Group (CSG) Limited | 00530446 | Stapylton Street | Bolckow Ind Est | TS6 7BJ | United Kingdom | |
| UNASYS LIMITED | 04057330 | Boho One | Bridge Street West | TS2 1AE | United Kingdom | |
| AIRHIVE LTD | 14368524 | Camburgh House | 27 New Dover Road | CT1 3DN | United Kingdom | |
| Ebac | | Ketton Way, Aycliffe Business Park, Newton | Aycliffe, County Durham | DL5 6SQ | United Kingdom | |
| Entoplast Ltd | 13285951 | 87a High Street, The Old Town | Hemel, Hempstead | HP1 3AH | United Kingdom | |
| Adaptavate Limited | 09214364 | Unit 7, Vertex Business Park, Oakwood Drive, Emersons Green, Bristol | | BS16 7LB | United Kingdom | |
| The Expanded Metal Company Ltd. | | Stranton Works | Greatham Street, Longhill Industrial Estate North | TS251PU | United Kingdom | |
| North Pier Brew Co | 15468413 | Harbour View | Roker | SR6 0PQ | UK | |
| SCOTT BROS. LIMITED | 06329873 | Scott Business Park, Haverton Hill Road, Billingham | | TS23 1PY | United Kingdo | |
| Diffusion Alloys (UK) Ltd. | | Teesport Commerce Park | Dockside Road, South Bank | TS6 6UZ | United Kingdom | |
| THREE BROTHERS BREWING COMPANY LIMITED | 10043786 | Unit 4 Clayton Court, Bowesfield Industrial Estate, Stockton On Tees, England | | TS18 3QX | United Kingdom | |
| | | | | | |
| TCC Plant Ltd | | Middlesbrough Rd E | | TS6 6TZ | United Kingdom | |
| Associated Asphalt Contracting LTD. | 08815372 | Regus House | Victory Way Crossways Business park | DA2 6QD | United Kingdom | |
| MILES WATKINS CONSULTING LTD | 15433620 | Level Q | Surtees Business Park | TS18 3HR | United Kingdom | |
| Transvac Systems Ltd. | Monsal House | 1 Bramble Way, Alfreton, Derbyshire | | DE55 4RH | United Kingdom | |
| Transvac Systems Ltd. | Monsal House | 1 Bramble Way, Alfreton, Derbyshire | | DE55 4RH | United Kingdom | |
| PSI Global | 01252181 | Glenarm Rd, Wynyard | Stockton-on-Tees | TS22 5FE | United Kingdom | |
| Cambridge Graphene Limited (CGL) | | Units 1a-D Longhope Business Park, Monmouth Road, Longhope, Gloucestershire | | GL17 0QZ | UK | |
| Tarmac Trading LTD | 453791 | Ground Floor T3 Trinity Park | Bickenhill Lane | B37 7ES | United Kingdom | |
| ChangeMaker 3D | 10711380 | The Foundry Building | 6 Brindley Place | B1 2JB | United Kingdom | |
| International Fugitive Emissions Abatement Association | 12577040 | Carne Crest, Mawgan Porth, Newquay, England, | | TR8 4BZ | UK | |
| Valio | | Valio Ltd, P.O. BOX 10, FI-00039 Valio, FINLAND | | FI-00039 | FINLAND | |
| Intelligen International Ltd | 09589887 | the Border Pine Building | Aesica Road, Haltwhistle | NE49 9DE | UK | |
| Red Barn Farm | | Aston Abbotts Cublington Road Aylesbury HP22 4ND | | HP22 4ND | UK | |
| Eigent UK Ltd | | 344-354 Gray's Inn Road, London | | WC1X 8BP | London | |
| Sabre Technology (Hull) Ltd | | Heron House | Woodmansey Business Park | HU17 0RT | Beverley | |
| TownRock Energy | SC454937 | 36 St Andrew Square | Edinburgh | EH2 2AD | United Kingdom | |
| Global Solar Council | | 6th Floor One Canada Square | London | E14 5AA | UK | |
| Warmatic Ltd. | 12509153 | Vaughan Court | Stapylton Street | TS6 7BJ | England, UK | |
| EcoJoule Energy Pty Ltd | | 1/8-12 Monte Khoury Dr | Loganholme | QLD 4129 | Australia | |
| TownRock Energy | SC454937 | 36 St Andrew Square | Edinburgh | EH2 2AD | United Kingdom | |
| Weardale Lithium Limited | 11495063 | Venture House | Aykley Heads Business Centre | DH1 5TS | UK | |
| Aimist Limited | | 8 Skye Court | Yarnells Hill | OX2 9BE | United Kingdom | |
| Alvatek Limited | | Unit 11 Westwood Court | Brunel Road | SO40 3WX | United Kingdom | |
| Apollo Engineering Consultants Limited | | Prince Arthur House 10 Queen's Terrace Aberdeen | | AB10 1XL | UK | |
| Asset Risk Consult Ltd. | 12759457 | Newohm Church St Bishop Middleham Co Durham | | DL17 9AF | UK | |
| AVGO Biotech | 9348039 | 17 North Parade | Grantham | NG31 8AT | UK | |
| Beamish Museum | 05751540 | Regional Resource Centre | Beamish | DH9 0rg | United Kingdom | |
| Northern Gas Networks Limited | 05167070 | 1100 Century Way | Thorpe Business Park | LS15 8TU | United Kingdom | |
| DNV | 09208322 | 3 Rivergate 4th Floor | Temple Quay | BS1 6EW | United Kingdom | |
| EBAC LIMITED | 01089991 | Ketton Way, Aycliffe Industrial Park, Newton Aycliffe, County Durham | | DL5 6SR | United Kingdom | |
| Zebec Biogas Ltd | SC345051 | Unit 5 44-46 Morningside Road | | EH10 4BF | United Kingdom | |
| Teesside University | | Tees Valley | | TS1 3BX | United Kingdom | |
| H-DEUX LTD | 14880635 | 38 Laurel Avenue, Durham | | DH1 2EZ | UK | |
| ADD | | ADD | | ADD | ADD | |
| Heinzmann UK Limited | 01777894 | Stanley House, Wallis Road | Skippers Lane Industrial Estate | TS6 6JB | United Kingdom | |
| Offshore Renewable Energy (ORE) Catapult | 04659351 | Offshore House, Albert Street | Blyth | NE24 1LZ | United Kingdom | |
| Procter and Gamble Technical Centres Ltd | 03281294 | Whitley Road | | NE12 9BZ | United Kingdom | |
| PERSIMMON PUBLIC LIMITED COMPANY | 01818486 | Persimmon House | Roseden Way, Great Park | NE13 9EA | United Kingdom | |
| RECKITT BENCKISER HEALTHCARE (UK) LIMITED | 00261312 | Dansom Ln S, Hull | | HU8 7DS | UK | |
| DAM GEOTECHNICAL SERVICES LIMITED | SC268869 | 69 Glasgow Road | Dumbarton | G82 1RE | Scotland | |
| HMP Durham | | Old Elvet | Durham | DH1 3HU | UK | |
| County Durham and Darlington NHS Foundation Trust | | University Hospital of North Durham | | DH1 5TW | UK | |
| ARUP GROUP LIMITED | 01312454 | Central Square | Forth St | NE1 3PL | United Kingdom | |
| HULL TRUCK THEATRE COMPANY LIMITED | 01210050 | 50 Ferensway | Hull | HU2 8LB | UK | |
| HydroGraph UK Ltd | | New Derwent House | 69-73 Theobalds Road | WC1X 8TA | UK | |
| Carbon Clean Solutions | 08116812 | Fourth Floor, Bronze, The Forge Bankside | 105 Sumner Street | SE1 9HZ | United Kingdom | |
| Casale SA | | Via G. Pocobelli 6 | | 6900 Lugano | Switzerland | |
| Durham Police and Crime Commissioner | Durham University | Durham Police Headquarters | Aykley Heads | DH1 5TT | United Kingdom | |
| Diocese of Durham | Durham University | Cuthbert House | Stonebridge | DH1 3RY | United Kingdom | |
| Durham Constabulary | Durham University | Durham Constabulary Headquarters | Aykley Heads | DH1 5TT | United Kingdom | |
| County Durham and Darlington Fire and Rescue Service | Durham University | County Durham and Darlington Fire and Rescue Service Headquarters | Belmont Business Park | DH1 1TW | United Kingdom | |
| County Durham and Darlington Fire and Rescue Service | | County Durham and Darlington Fire and Rescue Service Headquarters | Belmont Business Park | DH1 1TW | United Kingdom | |
| Diocese of Durham | | Cuthbert House | Stonebridge | DH1 3RY | United Kingdom | |
| Durham Constabulary | | Durham Police Headquarters | Aykley Heads | DH1 5TT | United Kingdom | |
| Durham Police and Crime Commissioner | | Durham Police Headquarters | Aykley Heads | DH1 5TT | United Kingdom | |
| BIFFA WASTE SERVICES LIMITED | 00946107 | Coronation Road | Cressex, High Wycombe, Bucks | HP12 3TZ | UK | |
| Osbit Ltd | Broomhaugh House | Riding Mill, NE44 6AW | | NE44 | United Kingdom | |
| SHD Composite Materials Ltd | | Unit 4, The Reservation | Sleaford Enterprise Park | NG34 7BY | United Kingdom | |
| University of Newcastle | Director | King's Gate | | NE1 7RU | United Kingdom | |
| Synthomer | Synthomer plc | Temple Fields | Harlow | CM20 2BH | United Kingdom | |
| Osbit Ltd | 04091038 | Broomhaugh House | Riding Mill, NE44 6AW | NE44 | United Kingdom | |
| Energy Demand Research Centre (EDRC) | | Jubilee Building | University of Sussex Business School | BN1 9SL | UK | |
| Daisy Chain | 4763989 | Daisy Chain, Calf Fallow Lane | Norton | TS20 1PF | United Kingdom | |
| Osbit Ltd | 04091038 | Broomhaugh House | Riding Mill, NE44 6AW | NE44 | United Kingdom | |
| Norwegian Geotechnical Institute | | Ullevaal Stadion | = | P.O. Box. 3930 | Norway | |
| HULL TRUCK THEATRE COMPANY LIMITED | 01210050 | 50 Ferensway | Hull | HU2 8LB | UK | |
| The Vacuum Glazing Network | Ash house | North Cheshire Trading Estate | Prenton Way | CH433DU | UK | |
| Marlow Foods Limited (trading as Quorn Foods) | 1752242 | Station Road | Stokesly | TS9 7AAB | United Kingdom | |
| Rail Safety and Standards Board Limited | 04655675 | 25 Fenchurch Avenue, | | EC3M 5AD | United Kingdom | |
| BIOGUARD BIOTECH LTD | | Victoria Building | Teesside University | TS1 3AP | UK | |
| Smart Grid Controls Ltd | 11503672 | Unit 6, Princes Park Princes Way North | Team Valley Trading Estate | NE11 0NF | United Kingdom | |
| S3nventus | Durham University | Lynefield Park House | Lynefield Business Park | NE63 9YH | United Kingdom | |