Church Street Security Systems is a security systems installer in the UK. The company provides CCTV, intruder alarms, access control, fire systems, audibile/24 hour monitoring and BT redcare/dual signaling to residential and commercial installations.

Churchill Security Systems Ltd is an independent security companies in the UK. The company designs and installs electronic security systems including: access control, CCTV systems, intruder alarms in accordance with the requirements of BS EN ISO 9001: 2010 and NSI Quality Schedule SSQS 101.

CIA Fire and Security Ltd, formerly Cirencester Intruder Alarms is a security systems provider in Cirencester, UK. The company offers intruder alarms, CCTV systems, access control, burglar alarms systems, gate automation and fire alarms etc.

Cielotec is a full-time security provider company. They install, service, and maintain all the installations professionally by their employees and never use subcontractors.

Cinemagic Entertainment offers a cost-effective security cameras installation service in entire New Jersey, specialising in the design and installation of custom home theatre systems, home automation installation, lighting control, wireless networks, telephone systems, and surveillance systems.

Cinos is a specialist security and audio visual systems integrator, providing reliable cost effective solutions and professional services to public and private sector clients in the UK and overseas.

Cipro Uganda Ltd is a Ugandan-based professional consulting firm focusing in a wide array of businesses such as logistics management, asset tracking, fleet management, business advisory, it procurement supply and installations and management services.

Citadel Co is a technology-driven company dedicated to delivering smart, secure, and connected solutions. They specialise in the installation, integration, maintenance, and repair of cutting-edge systems across four key areas: Security Systems, Home & Building Automation, Data & Communications, and Audio Visual Systems.​​ Whether it’s a new build, retrofit, or service upgrade, they deliver reliable solutions that work now and into the future.

Citiguard provides security services for companies and home since 1966. Their strength lies in their proven track record of delivering quality service solutions. With over 40 years experience as a security services agency for home, companies and government premises throughout Sydney and Australia.

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,

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.

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.