Lee Security London Ltd have been keeping businesses and homes safe from fire, theft and intrusion by installing fire alarms, CCTV, access control systems, security gates, integrated security, and fibre optics etc. The company is experienced to make sure fire alarm system is effective, compliant and professionally installed, without breaking the bank. Based in London, Lee Security provides the most suitable specification for its clients needs.

Leigh Visual designs, installs and maintains electronic security systems, particularly larger CCTV and Access Control systems for public sector and commercial customers. The company seek to understand a customer's business and their security issues and will recommend the most cost effective solution. Leigh Visual expertise in large access control systems and IP CCTV as well as covering traditional CCTV, perimeter, intruder and fire systems.

Lifeline Alarm Systems Ltd specialises in the design, installation and maintenance of Electronic Fire & Security Systems for domestic, residential, private sector, and heritage sites. The company haven gained NACOSS for Intruder Alarm Systems and maintained high levels of achievement in these approvals ever since. Lifeline Alarm strive hard to provide leading edge technology to all its clients.

Limitless Security specialise in security systems, fire alarm systems and man guarding services for business premises and homes. The company provides reputable, qualified security personnel for all purposes, from event staff and stewards to door security and personal protection. Limitless Security also offers professional intruder alarm system installations and maintenance contracts for both homes and businesses.

Lincoln Security has expanded to become one of the UK's most respected security solution providers. The company protects some of the most critical national infrastructure sites in the UK with its security systems including access control, CCTV, alarms systems, and key cutting services etc. Located on the Lincoln’s high street, Lincoln Security offer selection of products to installation and long-term maintenance.

Link CCTV Systems now design, install and maintain premium integrated security systems for some of Europe’s biggest corporations and groups on over 450 sites nationally. Link currently maintain a range of systems from large schools and universities to government and corporate offices, retail parks, haulage depots and high-profile shopping centres

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.