Headquartered in Nashville, ADS Security currently serves over 70,000 businesses, industrial facilities and residences throughout the southeastern United States. ADS provides a full range of burglar and fire alarms, as well as video surveillance, access control, wireless monitoring, and automation systems. ADS Security is the only security installation company to operate a UL-listed, CSAA Five Diamond Monitoring Center in Middle Tennessee.

Advance Fire is one of the leading fire protection companies in Yorkshire. With over 30 years of experience in Fire Detection, Prevention and Security, the company designs, installs, commissions, and maintains all types of fire alarm systems, emergency lighting, smoke vent systems, and security products etc. Advance Fire also provides fire talks and on site staff training to all businesses.

For over two decades, Advance Services, Inc. has been providing staffing solutions to employers by supplying quality workers at competitive rates. Their company delivers qualified and dependable employees by providing a complete partnership with their Clients and by administering a comprehensive screening process with their employees to ensure they make the best possible match.

Advanced Alarm Technologies provides sales, services and installations of alarms, access control products, intercom systems, security systems and medical alert systems for commercial, residential and industrial business.

Advanced Alarm, Inc. designs, installs, monitors and services a full line of security products for residential and commercial applications. Their range of products and solutions include home automation, intrusion detection, perimeter protection, wireless smoke and heat detectors, video surveillance and security alarm solutions.

Advanced Calibration And Validation Services Pvt. Ltd. specialises in in calibration of process control instruments, electrical, electronic, and mechanical instruments to enable the end user to get accurate and satisfactory results. Their services are highly demanded in many industrial sectors like Pharmaceuticals, Biotech industries, Biomedical & Healthcare, food and beverage etc.

ADVANCED CREATIVE TECHNICAL SERVICES LLC. shortly known as ACTS LLC is one of the companies, established in UAE with the sole purpose and objective to provide best and reliable sales & service support in the field of Automatic Doors, Bi-fold Doors DUBAI -UAE,

Advanced Multimedia Systems established in 2010 in Egypt by Experts and Pioneers coming from various media, Satellite Communications, Telecommunications and Networking, Gathering the power of Excellence.

ANSecurity is a specialist in securing networks and protecting data that helps some of the largest organisations in the UK and global brands to reduce risk and simplify operational management. The comapny will continue to build both point and end-to-end solutions that protect customers’ networks and businesses while continually expanding knowledge to meet the evolving IT security challenge.

Advanced Overwatch are one of Northern Ireland's leading CCTV System, Burglar Alarm and Security System installation companies offering the latest in security technology, installed by expert engineers.

Advanced Security Group is the largest corporate sector, electronic security integrator in New Zealand ,with 16 offices across the country. They are leaders in physical security solutions and secure their customers for the future with physical security solutions that enable organisations to succeed and protect what they value most.

Advanced Tech Systems is a full-service systems integration located in Greensboro, NC. Their capabilities include a wide-range of low-voltage applications in both the residential and commercial fields. The company's mission is to be the premier supplier of systems and services to enhance lifestyles through home computing, home automation, security and entertainment.

Advanced Voice & Data Networks specialise in telecommunications, security and network systems, services, and cabling for small, medium, and large businesses.

Advanced Wiring Solutions provides innovative systems and cabling solutions tailored to fit your needs by offering a consistent quality of service, rapid response time, quality of workmanship, and by utilising the latest technology in the industry.

Advanosys Security and Automation Technologies is a full service Systems Integrator providing a very wide offering of all security, automation, life-safety and disaster prevention. Advanosys offer complete designed, installed, managed/monitored and supported solutions to an equally wide range of clients to meet all types of security and automation requirements.

Advantage Security, Incorporated (ASI) is a locally owned and operated full service security provider with an unmatched reputation as the leading provider throughout Colorado. They offer the following services: unarmed security officers, mobile patrol, integration & technology, concierge services, executive protection, event security and investigations & consulting.

Based from the head office in Gateshead, Advantex Network Solutions are the provider in Mitel, IT Solutions, Networking, and iP surveillance in the North East. Established in 2002, Advantex has evolved with the speed and change of technology; growing from a small cabling company with 5 employees to become the North East's IT, Communication & Security solutions provider employing over 60 local employees.

Established in 2009, Advantio offers a comprehensive portfolio of professional, managed, advisory, and security testing services. Its subject matter expertise and services focus on cybersecurity, data protection, risk, and compliance with a distinct specialisation in the ‘Payment Card Industry.’

Advik delivers security solutions for homes and workplaces. The company manufactures a wide range of security products including network cameras, network video recorder, high definition cameras, video door phones, PTZ cameras, digital video recorder and analog cameras.

Advizex is an information technology provider of infrastructure and enterprise application solutions. Advizex combines the technical expertise of their consultants with the technologies from their strategic business partners to solve information technology issues impacting clients'​ businesses.

AE Industrial Partners is a private equity firm specialising in Aerospace, Defence & Government Services, Space, Power & Utility Services, and Specialty Industrial markets. As one of the largest and most experienced private equity funds specialising in aerospace and related industries, we are able to provide a powerful level of industry insight and strategic direction that helps drive success.

AEGIX AIM is a safety and emergency management platform that is fully customisable. Allowing users to actively manage incidents at the campus, event or facility on any device.

AEI Cables serves key markets in the UK and worldwide including construction, industrial, fire protection, defence, mining and rail. Its products meet the highest industry standards including ISO 9001 and are approved by the organisations nationally and internationally including BASEC, LPCB and Lloyds.

AEI Electrician is based in Liverpool and provides all electrical services throughout Liverpool and Merseyside. We provide all types of high quality electrical services including electrical inspection, testing and certification to domestic and commercial clients in a timely manner. With Fully Qualified and competent personnel, our services are guaranteed and Certified to meet regulations.

Heading an industry group focused on unmanned solutions, systems and subsystems, Aeronautics Ltd, provides integrated turnkey solutions based on unmanned systems platforms, payloads and communications for defence and civil applications.