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2 million working hours without a reportable accident in Area 4. Aiming for zero AFR.

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

M23 Concrete Replacement Scheme

Embedding Customer Principles

Two Full-Width Lane Paving

Waste Segregation Facility

Our Latest Tweet

@misoportal Great collaboration and great outcome, thank you @misoportal

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LATEST NEWS / 07.01.2019
2 Million Safe Hours

A-one+ in Area 4 is celebrating the start of the year by reaching over 2 million working hours without a reportable incident....

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LATEST NEWS / 21.12.2018
ISO 44001 Accreditation

Finishing the year on a high A-one+ is delighted to receive ISO 44001 Collaborative Business Relationships accreditation. ISO...

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LATEST NEWS / 19.12.2018
Christmas Wishes


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LATEST NEWS / 14.11.2018
CIHT Young Professionals

Considered to be oneĀ of the most unmissable events of the year the CIHT Young Professionals Conference is taking place at...

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