The UK’s City Alarms specialises in the repair of old security systems. The company also offers intruder alarms, CCTV systems, access control, fire detection systems, door entry systems and locksmith services.

City Smart Systems is known for the best, specialized and uniquely developed electronic and physical home automation and security systems solutions including access control systems and management systems, phone entry and intercom systems, alarm systems, security cameras, video surveillance (CCTV) systems, Structured Cabling Services,

CitySync was formed in the late 1990s specifically to develop innovative technology solutions in the field ANPR / LPR. CitySync automatic number plate recognition (ANPR) family is a part of ISS’ industry leading computer-enabled detection (CED) products.

Dubai based, Citytec LLC is recognised as the market leader for Security Systems, including access control, CCTV, security alarms, security & fire monitoring, automatic barriers & gates, biometrics systems, perimeter protection, patrol tours, intercom systems, fire & safety systems, etc. Working as an integrated security solutions provider, Citytec offers solutions for residential, retail, commercial, industrial, government & other markets.

CIVIC Security supplies, installs and maintains a complete range of security, communications and electrical services. The UK based company provides CCTV, access control, fire alarms and intruder alarms to residential, commercial and industrial sectors, including local authority housing, housing associations and government departments.

CK System specialises in CCTV cameras. The company has supplied worldwide markets with various CCTV products that have high performance, integrated functions and low cost. CK System obtained ISO 9001 to meet global standard. The company offers HD-SDI and IP box, indoor and outdoor domes, outdoor eyeball cameras, bullet cameras, etc. The typical design, durability, competitive price are the core of CK System.

Clantect delivers products and services capable of solving and overcoming major challenges and threats in the security, defence and maritime industries, in the UK and throughout Europe. Their motion detection systems is a key component in the prevention of the illegal cross-border entry of people, by detecting hidden human presence in heavy goods vehicles.

Clare Controls provides clear and exclusive benefits to integrators, builders, and homeowners. Clare Controls product line features home automation solutions that are simple to install, maintain, and use; and that give homeowners the greatest level of control over their own automation experiences. The company's solutions include video surveillance, access control and security integration.

Clarion Security Systems Ltd is a security company in Manchester and are dedicated to the design, installation, service and maintenance of CCTV, Access Control, Intruder Alarms, Intercom, Visitor Management and Integrated Security Systems for commercial enterprises.

Clarion Security Systems is a security company dedicated to the design, installation, service and maintenance of CCTV, access control, intruder alarms, intercom, visitor management and integrated security systems for commercial enterprises.

Class A Alarms is a security company providing CCTV, access control and intruder alarm systems to businesses and home owners across the East Midlands. Class A Alarms is NACOSS Gold and BS EN ISO 9001 accredited.

The UK’s Classic Security Solutions Ltd specialises in design, installation and maintenance of all types of electronic security systems. The company provides CCTV systems, access control, intruder alarms, fire alarm, security monitoring and smoke clock etc. for councils, government offices, premiership football clubs, power stations, schools, retail chains, hospitals, and individual homes.

Classwatch supplies mobile video systems and fixed video systems for the UK education sector. Classwatch is an audiovisual recording system that allows teachers and students to learn from and share their classroom activities.

Clear Cloud Solutions is a full service Security Systems Integration and Electrical Contracting company based out of Southern California. They provide cutting-edge security systems design build, sales, and installation to the industrial, commercial, public, and federal sectors.

Clear Image (CCTV Systems) Ltd is a security solutions provider in the UK. The company provides IP CCTV surveillance, access control, lone worker solution, monitoring systems and maintenance services to universities, clinics, and commercial etc.

Clear Sound Alarms are professional electronic security systems provider in the UK. The company installs CCTV, intruder alarms, access control, remote monitored CCTV, fire alarms, induction loops and public address systems for government authorities, police authorities, council authorities, blue chip companies, chemical factories, newspaper publishers, and vehicle manufacturers etc. Clear Sound Security are NSI NACOSS Gold approved.

Clear Sound Fire & Security provides top-tier electronic fire and security systems for homes and businesses across the West Midlands. NSI Gold and BAFE-approved, they offer CCTV, alarms, and access control with over 45 years of expert service.

Clear Vision Technologies deal with transmission for industrial and commercial networks. IP, wireless and fibre optic transmission for CCTV & surveillance, industrial control and security systems are the main services that the company provide. Ethernet switches, media converters and line drivers including 10/100 and Gigabit as well as PoE units are some of the products of this company.

ClearPix Technology specialises in IP megapixel products. ClearPix Technology offers a full range of megapixel cameras. 1, 2, 3 and 5 megapixel cameras with H.264 technology offering remote zoom and auto focus lenses that provide extraordinary detail of every situation.