Founded in 2002, Zhongshan Lan Castle Technology Co, Ltd. is a high tech company specializing in research & development, production and sales of security products. For years, Lan Castle Technology has independently researched and developed a series of security products, such as digital video recorders, CCD cameras, network cameras, high speed domes, and digital video servers.

LEA Networks is an international supplier of Power over Ethernet (PoE) and HomePlug Ethernet over powerline (PLC) technologies. It provides unique time and cost-saving solutions developed to support the security and wireless access point industries in North America. LEA Networks is dedicated to providing products and services of the highest quality that conform to the requirements of its customers.

Leachi Enterprises provide IT Infrastructure security via wide range of network cameras ranging from 10x resolution indoor cameras to high resolution outdoor day and night cameras .

Lead Star Security are a fully licenced and insured private security company founded and operated by leadership with over 35 years of executive law enforcement and security experience. Headquartered in California’s State Capitol of Sacramento, they proudly service clientele throughout Sacramento, the surrounding areas and select locations throughout the state of California.

Leadertech Systems of Chicago, Inc. is a distributor of computer chassis and power supplies, main boards, processors, optical drives, video cards, monitors, networking solutions, surveillance systems, and notebooks, in addition to many other accessories and peripheral devices. The company has built its customer base from the Midwest throughout the U.S. and beyond.

Learn CCTV teach the basics of CCTV up to high end IP systems, taking everything step by step. They don’t over complicate things, teaching in a simple hands-on way, which both help learners to understand and remember. Learn CCTV don’t want their learners to just sit there and watch a PowerPoint presentation for 5 hours. They like to add a hands on practical element to all of their courses, which are designed for a wide variety of people.

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.

Legacy Marketing, founded in 1994, is a quality manufacturers' representative firm specialising in audio, video and security products. The firm's commitment to excellence has secured its place in this particularly competitive and demanding field. Legacy Marketing provides in-depth training, technical education, as well as excellent service and support to all of its valued customers.

Legacy protection services is a leading security company offering a wide variety of security guard and investigative services. Legacy Protection Services combines covert surveillance, uniformed security and technology to provide the client with the best possible security solution available on the market.

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.

At Leisure Guard Security, they’re always looking to expand the team of SIA-licensed, experienced and driven security guards and supervisors in Greater Manchester and the North West of England. They pride themselves in the ability to deliver the highest possible standard in security services and they are selective in recruiting only the best to the team.

Lekson Video was founded in 1991, and has been actively involved in security industry, specialising in CCTV products. The company provides wide range of solutions for security professionals, dealers, integrators, & distributors worldwide with cutting-edge line-up of CCTV products. Lekson products include stand-alone DVRs, LCD security monitors, public view monitors, CRT security monitors, system mounting solutions, surveillance cameras, etc.

Lekson Video was founded in 1991, and has been actively involved in the security industry, specialising in CCTV products. Lekson Video provides a wide range of solutions for security professionals, dealers, integrators, and distributors worldwide with our cutting-edge line-up of CCTV products. Lekson products include stand-alone Digital Video Recorders, LCD Security Monitors, Public View Monitors, CRT Security Monitors, system mounting solutions.

Lempäälän Security Services Ltd offers designing, installation, supervision and training of security systems including CCTV, access control, intruder alarms, time & attendance tracking systems etc. Based in Finland, the company's customers range from large chains, such as petrol stations, as well as individual SME sector companies and households. Lempäälän Security Services is a comprehensive real estate security and supervision missions.

Lenel Systems International, Inc. is leading provider of software and turnkey security systems. Lenel has blue chip customer base with a strong presence in vertical markets including healthcare, government, critical infrastructure, education, petrochemical, manufacturing, and telecom. The security platform, OnGuard®, seamlessly integrates a full suite of security management functions and technologies.

Lenovo is one of the world's leading personal technology companies, producing innovative PCs and mobile internet devices. Lenovo also offers Thinkserver racks and towers, network attached storage, video surveillance storage and management, etc. Innovation is how Lenovo achieves competitive differentiation and drives new market opportunities, such as mobile Internet, digital home and cloud computing.

Founded in 1998, Houston-based LENSEC provides physical security solutions to a variety of markets. Perspective VMS™ enables secure remote access and real-time collaboration with first responders during security events. LENSEC serves state & local governments, healthcare and education sectors.

Lenz Technologies limited distributes security and conference solutions including CCTV surveillance systems, access control, intruder/burglar alarm systems, x-ray scanners & metal detectors and video conferencing systems to banks, oil & gas facilities, air & sea ports, shopping malls, offices, estates, industrial complex and government facilities & agencies in Nigeria.

Leonardo is a high-tech company and one of the key players in aerospace, defence, and security. Their Security & Information Systems Division is provider of safety-through-technology, providing tailored solutions for customers in public administration, public safety and security, critical infrastructure, services, transport, large companies, post, and logistics.

LevelOne is a IP networking security products and solutions manufacturer in Germany. The company offers IP network camera, network video recorder, video encoder, video extender, surveillance software, camera enclosure, IR illuminator and lens etc. LevelOne was established by Digital Data Communications GmbH.

LEVER Technology Group PLC is a wireless network consultancy, training and support services provider. They deliver the largest portfolio of vendor-independent training in mobile communications, wireless, telecommunications, data networking and network security.

Leverage DETECT is an industry and technology leader for highly-scalable, comprehensive video surveillance systems. They are a strategic partner for cities, police departments, agencies, utilities, and school districts, enabling the essential video security and proactive response that are hallmark components of their partner’s safety programs.