The following list of website links is by no means exhaustive but provides easy access to sites which those with an interest in the UK motorway system may find useful.
| Sponsor | Website address |
| The Chartered Institution of Highways & Transportation | www.ciht.org.uk |
| The Institution of Civil Engineers | www.ice.org.uk |
| The Rees Jeffreys Road Fund | www.charitiesdirect.com |
| The Transport Research Laboratory | www.trl.co.uk |
| Alfred McAlpine | www.carillionplc.com |
| AMEC/McAlpine Joint Venture | www.amec.com |
| Amey | www.amey.co.uk |
| Babtie Group | Not known |
| Balfour Beatty | www.balfourbeatty.co.uk |
| Bullen Consultants | www.bullen.co.uk |
| Calouste Gulbenkian Foundation | www.gulbenkian.pt |
| Carillion Construction | www.carillionplc.com |
| Fitzpatrick | www.fitzpatrick.co.uk |
| Great Queen Street Trust | Not known |
| Hanson Trust | Not known |
| John Mowlem Construction | Not known |
| Johnston Construction | Not known |
| Kier Group | www.kier.co.uk |
| John Laing | www.laing.com |
| Owen Williams Group | www.owenwilliams.co.uk |
| Shell UK | www.shell.com |
| Tarmac Ltd | www.tarmac.co.uk |
| Charles Tennant | Not known |
| Tilbury Douglas Construction | Not known |
| Wrekin Construction | Not known |
| W S Atkins | www.wsatkins.com |
| Lord Parkinson | Not known |
| Laing O'Rourke | Not known |
| Trusthouse Charitable Foundation | www.nelincs.gov.uk |
| Aggregate Industries | www.aggregate.com |
| ** This list is still far from complete ** | |
