LINX - London Internet Exchange Ltd. focus on investing our service and membership fees into strengthening all LINX network services. This ensures that their infrastructure is as up to date as possible and that they remain at the forefront of the IXP industry. By doing so, they can confidently provide our members with improved network performance, low latency and more control.

Littlewood Fencing Ltd is one of the most diverse fencing contractors in the United Kingdom. They provide gate automation solutions, access control solutions, CCTV systems, safety devices and many more.

Locksmiths in Liverpool; Lock and Key Master Ltd are the source for Locksmithing, High Security Locks, Master Key Systems, Electronic Locking Systems, Access Control, Home Security, Ingress/Egress Controlled Solutions, CCTV, Intercom and Electrical Installations. The company offers tomorrows security for both the domestic and commercial sectors today. LKM is accredited by The Master Locksmith Association.

Lochrin Bain are suppliers and manufacturers of steel palisade security fences. They also provide site survey where they examine the existing perimeter systems and then advise the right level of product to enhance the system which is already installed.

Lock Shop & Security Services Ltd. have provided a quality service to its customers and have assisted them in assessing and maintaining their own individual levels of security, based on their requirements. The company have been providing Security Solutions for both Business and domestic properties in and around the Tayside Region. Lock Shop & Security is highest priority is satisfied customers.

Lock-Tec is a Company Member of the Trade Division of the Master Locksmith Association and an installer of electric locking systems, access control, door entry systems, master key systems and mechanical locking products.

Lodge Service have years of experience in the security industry to deliver intelligent, data-enabled security solutions for optimum protection of people, property, business operations and profits. Based in London, the company services include remote monitoring, incident management systems, guarding, detection and security integration etc.

LogiScan Security Systems Ltd provide a complete service to its clients, from the design and consultation stage, planning and installation of security products intruder alarms, fire alarms, access control systems, perimeter detection systems etc. The company aims to provide powerful safety and security solutions and the very highest levels of service. LogiScan are a NSI NACOSS Gold Approved Company.

London East Security Centre Ltd is installer and distributor of safes, locks, padlocks, CCTv etc.

Longcross Security Ltd provides security installations, maintenance, and design that allow for maximum flexibility enabling to integrate CCTV with other security systems such as access control, intruder alarms, fire alarms, EAS tagging and ANPR systems. The company is NSI (NACOSS) Gold accredited. Based in Surrey, Longcross Security is dedicated to identifying and undertaking activities which go above and beyond compliance.

Longmore Electronics provides supply, design and installs security systems including CCTV, access control, intruder alarms etc. The company provides both domestic and commercial security solutions. Longmore Electronics also offer 24 hour call outs for emergencies and cover most of Northern Ireland.

Lorient Polyproducts designs and manufactures high-performance door sealing systems. Lorient's intumescent seals are a vital part of a fire door assembly, helping to defend buildings against the spread of fire. Lorient manufactures smoke seals which restricts smoke movement around a building - giving people time to escape, and reducing property damage.

Lupovis is pioneering network and cloud security, by fighting a different battle than conventional cybersecurity companies. Lupovis focuses on protecting organizations using active defense. It deceives and tricks adversaries. It turns the table on attackers and detracts them from crown jewels.

Lynx Networks plc provides the infrastructure that underpins these systems; powerful solutions with the resilience to perform now and for the future of your enterprise. The company provides premises cabling, data center cabling, wireless networking, fibre & backbone cabling. Lynx Networks provide and support rock solid IT infrastructures to enable our customers to build thriving businesses and services.

UK's Lyrico Systems design, install, commission, maintain, and monitor CCTV, fire alarms, access, intruder alarms, and intercom systems for wide range of clients including local authorities, shopping centers, schools, hospitals, and commercial businesses. Lyrico's network of engineers are based across the UK to offer a nationwide coverage and are dedicated to delivering exceptional customer service.

M & E Alarms (Barnstaple) Ltd design and installs security systems such as Access Control, Electric Gates, Wireless Equipment, External Beam Alarms to list just a few. The company provide a comprehensive and professional fire and security service to the Homes and Businesses in the South West. M & E Alarms have worked closely with local authorities, maintaining fire and security systems in many schools, hospitals and council buildings.

M.A.C. Security Solutions are specialists in CCTV, Alarm and Security Systems.

M.J. Quinn Integrated Services Ltd provide design, installation and maintenance of telecoms, mechanical, electrical, fire detection and suppression systems, LED Lighting, Air Cooling and building services. The company's clients base include transport, retail, commerce, public services, education and hospitality. Based in Liverpool, M.J. Quinn provides tailor-made solutions on both fire protection and detection systems to major companies.

M.P. Alarms (Fire & Security) Ltd are into supplying and installing alarm systems, CCTV, access control systems, and fire alarms. The company's professional team of dedicated managers, supervisors and security Officers provide effective and efficient security services 24 hours a day. M.P. Alarms is continually inspected to ensure continually provide a high standard of work in the office and on site.