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JustGiving fund set up in memory of road worker tragically killed on M6

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

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Our Solutions

A64 Carriageway Renewal Team

Ouse Bridge Safety Mock Up

Cusworth Park and Gardens Preservation

Integrated Area Programme

LATEST NEWS / 30.03.2022
The end of an era - thank you and goodbye.

"Together we have had some incredible achievements, delivering £800m of work on the network over the MAC and ASC, providing the...

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LATEST NEWS / 04.03.2022
A-One team member volunteers to drive humanitarian aid to Poland – help fuel the journey 

Mike Eastwood, a Lead Quantity Surveyor working with A-one+, is about to set off on a journey to deliver much needed medical...

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LATEST NEWS / 02.03.2022
JustGiving fund set up in memory of road worker tragically killed on M6

The dangers faced by highway workers were brought sharply into focus yet again this weekend after the tragic death of traffic...

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LATEST NEWS / 15.10.2021
Seven million hours

A-one+ exceeds landmark SEVEN million hours reportable injury free National Highways Area 12 Asset Support Contract in...

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