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.

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.

Straten CSL is a specialist aviation consultancy, providing a wide range of support services to airports and developers. Our principal capability is in the field of Air Traffic Management (ATM) with a focus on airspace.  Additional services are airport safeguarding, feasibility studies for developers (including windfarms), Solar PV glint and glare studies and providing Business Continuity Management support.

Tango Check is a trusted and experienced third-party staff vetting company, specialising exclusively in aviation airside ID pass applications and background checks. We work closely with airports, airlines, ground handling companies, and aviation service providers to ensure staff meet all regulatory and security clearance requirements. With knowledge of airside security pass rules, we combine modern technology with human qualities like tenacity, honesty, and integrity. Our processes are clear, efficient, and fully compliant with industry standards, helping our clients streamline their onboarding without compromising on safety. Our dedicated team is knowledgeable, thorough, and accountable—delivering consistent, reliable results in a high-stakes environment. We take pride in removing the stress from what can be a demanding and detail-driven process, offering peace of mind and full transparency every step of the way. When precision and trust matter most, Tango Check leads the way in aviation airside vetting.

With over 70 years experience, our mission is to use technology to develop innovative solutions and services which exceed our customer's expectations.  To achieve sustainable year on year growth through providing quality and innovative products and services.  We will provide a strong market message that will be provide our clients with confidence and trust that their needs will be met in full.  Total customer satisfaction will be the heart beat of the business.  Founded in 1950, Todd Research has a proud history of designing, manufacturing and supplying X-ray scanners, metal detectors and blast suppression equipment across a diverse range of public and private market channels.  In recent years we have our customer base into the Aviation Sector in particular the Aviation logistics supply chain.  We have provided X-ray machines from small conveyor machines for screening loose items to machines capable of screening full size pallets.  Our latest product is a purpose built X-ray machine used to screening Airline Carts.

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.

Wilson James has over 25 years’ experience in the aviation industry, working with airports across the UK.

Our understanding of the unique operational and compliance requirements of the aviation sector enables us to provide safe, efficient solutions. We understand the importance of the passenger experience and ensure that safety and security are always top priorities.

Wilson James delivers a diverse range of services including aviation security, passenger and premium services, airport operations and construction logistics, consultancy and training.