close menu
Home About Capabilities Our Solutions News Our People Vacancies Contact

Parent Companies


Shortlisted for three Highways Awards tonight. Good luck everyone!

Introducing integrated highway engineering provider A-one+.
We have the capabilities to design, construct and operate thousands of miles of road networks.
A-one+ works as one team delivering highway excellence.
Discover exactly what we do for your road network by viewing our capabilities and solutions now.

What we do

About Us

A-one+ is a key group of integrated highway engineering providers, having been established by industry leaders Jacobs, Colas and Costain.


You can depend on our capabilities to provide a quality integrated highway service and our solutions to develop pioneering industry innovation.


People are our most important asset. Being un-incorporated means that parent company expertise and support for our employees plays a vital role in our success.

We offer a wide range of services, click the button to find out more

View all capabilities

Our Solutions

A64 Carriageway Renewal Team

Ouse Bridge Safety Mock Up

Cusworth Park and Gardens Preservation

Integrated Area Programme

LATEST NEWS / 25.10.2019
Highways WINNERS

A-one+ Area 12 Highways Awards 2019 Team of the Year WINNERS and Most Innovative Highways Product highly commended. Our Team...

Read more
LATEST NEWS / 24.10.2019
Sawtooth Bridge Technology

Most drivers have experienced that familiar loud thud as tyres drive over a bridge joint, A-one+ found a solution by using ground...

Read more
LATEST NEWS / 20.08.2019
Another Coup for Connor

Congratulations once more to Connor Coupland recently announced as Yorkshire and Humber finalist for the National Apprenticeship...

Read more
LATEST NEWS / 15.08.2019

The eagerly awaited shortlist for the Highways Awards 2019 has been announced this week ahead of the ceremony in October and we...

Read more