Connaught Competition Engines are proud to be associated with the following organisations and championships:
| Avon/BMTR Tyres | www.bmtr.co.uk |
| British Racing Drivers' Club (BRDC) | www.brdc.co.uk |
| British Hillclimb Championship | www.top12runoff.co.uk |
| British Sprint Championship | www.britishsprint.org |
| Classic Clubmans | www.classic-clubmans.co.uk |
| Cosworth Engineering | www.cosworth-technology.co.uk |
| Engine Developments Ltd. | www.engdev.com |
| Hillclimb and Sprint Association | www.hillclimbandsprint.co.uk |
| Irish Hillclimb and Sprint Championship | www.irishhillclimb.com |
| Irish Motorsport Photography | www.caoradubha.com |
| M.A.S Car & Commercial Ltd. | www.masrepairs.co.uk |
| Midland Speed Championship | www.midlandspeed.org.uk |
| NGK Spark Plugs | www.ngkntk.co.uk |
| Piper Cams | www.pipercams.co.uk |
| Spectrum Paint Worx Ltd | www.spectrumpaintworx.co.uk |
| Super Clutch | www.superclutch.com |


