A proven track record

Founded in 1992, we’ve grown into a £50 million company with a multi-skilled,  workforce. Major public and private sector customers rely on our  innovations and maintenance and support services to manage their network assets safely and successfully. Our proven track record of collaborating with our customers to deliver certainty of outcome is backed by our health and safety, quality and environmental accreditations. We operate nationally from our HQ in Staffordshire and offices throughout the UK.


Our values are fundamental to our business. We aim to live and breathe them in everything we do.


We are passionate about the work we do. We are committed to delivering high performance through the continual development of our people and our processes.


We do what we say.
Our reputation is built on being strong, safe, capable and dependable.


We respond quickly and efficiently to the needs of our customers, partners and colleagues and the unique demands of each task.


We continually look for better ways to do things. We’re not afraid of a challenge and we take the lead in proposing innovative, practical solutions.


Carnell have extensive experience of working in safety critical environments.  Safety is integral to all aspects of our operations and we are committed to the promotion of a first class health & safety culture, which we believe is key to our business success.

Our Occupational Health & Safety Management Systems are certified to BS OHSAS 18001:2007 standard.

We are members of RoSPA and have achieved consecutive Gold Awards since 2010.  Prior to this, Carnell won four Silver Awards in as many years and are  fully committed to supporting the Highways England five year safety plan.

We identify and manage hazards and risks through assessment and control systems. Any site incidents and accidents result in a board-led root cause investigation.

We maintained an annual rolling AFR of Zero for almost 3 years, amounting to 2.5 million safe working hours – a testament to the commitment of our workforce and site management teams to creating a safe working environment.

As members of RoSPA we achieved Gold Medal status for Occupational Health & Safety in 2016, signifying seven consecutive Gold Awards.

Our commitment to safety & health is integrated into everything we do, openly sharing a two way flow of knowledge and experience with our staff and everyone we interact with. Our long term aim is to achieve zero incidents, as set out in our 2016 safety plan.


We are committed to improving the health & wellbeing of all our employees, not only ensuring everyone goes home safely at the end of each shift but also ensuring we give them every encouragement in maintaining a long and happy life away from work.

Our Occupational Health & Safety Management Systems are certified to BS OHSAS 18001:2007 standard.

Starting in 2014, all Carnell employees are now enrolled on an independently run health screening programme, with site based employees upgraded to the more stringent Safety Critical Assessment.

To date, we’ve helped many employees identify and manage sight and hearing issues, whilst also identifying early stage HAVS, blood pressure and kidney failure symptoms.

Since 2013, we have distributed quarterly Health and Wellbeing Bulletins, to help keep the workforce informed about relevant subjects.

Carnell recognise the dangers associated with drugs and alcohol in the workplace and carry out extensive D&A testing across our workforce, in conjunction with HE and their supply chain network. In support of this robust testing regime, we offer help and support to those individuals who approach us with D&A problems away from the test arena.



We’re actively committed to minimising the impact of our operations in every way we can, and to protecting flora, fauna and wildlife.

Our management system is fully certified to the environmental standard ISO 14001:2004.

We invest in developing technologies and solutions that cut down waste, carbon emissions and whole life costs.

Our services are designed to minimise any effect caused by our work – for example through innovative recycling, reducing works traffic volumes, and engaging specialist waste management partners to dispose of material.

Our patented STONEmaster process provides significant benefits compared to traditional filter drain recycling methods.

Each STONEmaster unit can recycle 75,000 tonnes of aggregate per annum resulting in savings of:

230,000 HGV miles travelled.

800 tonnes of Carbon emissions.


We are committed to continued excellent delivery of services, linked to an unrivalled understanding of our customers’ requirements.  This ethos extends right across our business activities.

We implement and maintain quality procedures which are accredited to the latest recognised international standard ISO 9001:2008. To support our commitment to this standard and our client training schemes, we’ve also successfully integrated National Highways Sector Schemes (NHSS) 2A, 8, 16 and 18 into our certification.

Documented objectives are set and reviewed during our management system review meetings, and monitored during internal audits and divisional review meetings.  All our staff are involved in the implementation of our quality systems through training and communication.

Continuous improvement is a fundamental component of our customers’ contracts. Sharing our performance management system with our customers helps to promote best practice. By aligning our KPIs with theirs, we’re easy to do business with – and our operations are fast, lean and right first time.

Our performance management system captures and reports information across our four business streams.

Regularly measuring our performance helps us to understand the effectiveness of our activities, so that we can deliver continuous improvement throughout our organisation.

We do it by:
> Benchmarking current performance
> Developing a performance management system for capturing and reporting data
> Setting realistic and challenging targets against performance measures
> Reviewing monthly performance and identifying improvement areas
> Sharing best practice within our business streams and clients



We work together with our clients and other suppliers to improve performance for all.

Carnell achieved BS 11000:2010 Collaborative Business Relationships accreditation in 2016.

We implement our collaborative approach across our contracts, sharing best practices and also learning from each other’s experiences to improve productivity and minimise waste.  We strive to meet mutually agreed goals for the benefit of all parties.

Carnell’s partnership approach has been recognised three times during awards ceremonies in 2016:

The Chartered Institute of Highways & Transportation (CIHT) twice commended Carnell and other alliance members’ entries into their Partnership Award.

The HE Area 9 Delivery Community of which Carnell are a member then won the IHE Mercia Award for Partnership of the Year.



Darren Nelson
Chief Executive / Founder

Aidan Clarke
Managing Director

Liz Bell
Business Director

Peter McNulty
IT Director

James Tyson
Commercial Director

Lee Gill
Plant & Transport Director

Conal Neafcy
Finance Director

Andy Jamieson
Strategic Director

Martin Parry
Head of New Product Roll-out

David Foster
SHEQ Director

Dave Trotter
Operations Director


As a progressive organisation, we have documented many of our principles which show the commitment we have to the health, safety and wellbeing of our employees. By promoting a best-in-class approach to these key issues, we believe the benefits are passed on to our clients, suppliers and customers.

Some of our policies are published here:

Modern Slavery

Our Accreditation / Certification for our management systems are available on the following page: