Kier’s purpose is to sustainably deliver infrastructure which is vital to the UK. We are a leading provider of infrastructure services, construction and property developments and committed to delivering for communities and leaving lasting legacies through our work.

At the core of our project delivery is technical excellence, utilising the latest building methods, innovations and technology to ensure we offer the best value for our clients.

Kier launched sustainability framework, focused on two key components; environmental sustainability and social sustainability and this approach aims to safeguard three vital features; a resilient environment, a resilient community and a resilient balance sheet.

Leonardo is an international leader in electronic and information technologies for defence systems, aerospace, data, infrastructures, land security and protection and sustainable 'smart' solutions. Within the civil domain, Leonardo delivers integrated airport solutions - leveraging our capabilities in automation, IT services, security and safety - that incorporate systems for baggage handling, secure communication, security and air traffic management. Our lead in Air Traffic Management operations is built on a proven pedigree in air traffic control, weather systems, surveillance, and navigation aids which see our systems operational in over 150 countries.

We are Morgan Sindall, the construction, infrastructure and design division of Morgan Sindall Group plc, a leading UK and construction and regeneration group. Our company is organised through five businesses of Infrastructure, Tunnelling, Construction, Utility Services and Design. We deliver public and private sector projects of all sizes. Baker Hicks is a leading design consultancy practice specialising in the design of aviation facilities and infrastructure. With over 25 years of experience in delivering facilities for the aviation sector, we offer a comprehensive and flexible approach to working with our customers in helping them achieve and exceed their expectations. We aim to create great results for our customers, partners and ourselves, by providing expertise across a broad range of market sectors. We also collaborate with our sister companies within Morgan Sindall Group to maximise our offering to customers. Airports are unique environments and require a special approach for engineering and construction activity. We have multi-disciplined capabilities, providing multi-disciplined aviation services including pavement and apron works, control tower and terminal construction, tunnelling, and installation of baggage handling facilities. Our aviation customers benefit from our experience as the only UK construction company to provide in-house capabilities across the entire range of airport services (airfield works, terminal construction and baggage handling system installation). This includes control tower and energy centre construction, terminal construction and modernisation, and apron, taxiway and runway works - we are one of the country’s leading airfield pavement contractors, having worked on runways and pavements at more than 20 major UK airports. Because we have built airport terminal buildings, check-in and baggage handling facilities as well as hangars, retail units and lounge areas, we have an in-depth understanding of the security implications of working airside. To assist our customers in meeting capital investment targets and regulatory deadlines, we work closely with airport stakeholders, employees and corporate bodies. This is coupled with a focus on maintaining ‘business as usual’ in live environments, and ensuring that passenger disruption is minimised. Customers also receive the benefit of our expertise in other sectors including rail, roads, bridges, energy, tunnelling and also defence, where we have completed hangar and airfield work.

PDS deliver and support a comprehensive package of airport services and solutions including high integrity Infrastructure Control Systems with SCADA installations, specialist engineering support including surveys and consultation, packages ranging from individual components to fully integrated turnkey solutions.  With 35 years of experience in the UK transport industry and a 25-year relationship with Heathrow Airport, PDS have experience in lighting and ventilation control, traffic control and monitoring, CCTV, Radar, PA Systems, Airfield & Terminal Security, UPS, Power Monitoring and Runway Condition Monitoring Systems.  We also have a key role in Heathrow's (HEART) Heathrow Airport Remote Telemetry system which monitors and controls airport infrastructure.

Specialist services to support the Aviation, construction and facilities management sectors accros the UK.  Premier Technical Services Group Ltd (PTSG) is a multidisciplinary building compliance business specialising in access and safety, electrical services, façade maintenance and cleaning, fire solutions and water treatment.

We work collaboratively, forming an extension of our clients’ teams in order to achieve best-in-market quality. In our commitment to be the best, we have created five independent business divisions from which our 3,000 specialists deliver >170 building compliance, installation and maintenance services to over 30,000 customers throughout the UK.

Redline provide a wide range of government-standard security solutions covering high-quality training, quality assurance, auditing, and risk management software for clients globally. We are proud to be endorsed by the International Civil Aviation Organisation (ICAO) for over 10 years as the UK’s Aviation Security Training Centre (ASTC) and of our long-term trusted relationships with the UK’s major airports, leading global cargo companies and several Critical National Infrastructure (CNI) organisations. Our dynamic, effective and customer focused service means our security solutions can be tailored to each client’s needs.

Vaylia are a security contractor. We act as a main contractor or second tier on projects which involve the supply and installation of security products – whether these are physical security items, such as fences, hostile vehicle mitigation or security doors – or electronic security products such as CCTV, detection systems, access control or electric fencing.

Our employees have a lifetime of experience working on the development and testing of security products and the installation of products on some major contracts protecting critical national infrastructure.