A part of Stanley Black & Decker, STANLEY Convergent Security Solutions, Inc. is the second largest electronic security company based on total revenue and one of the largest system integrators in the United States. STANLEY CSS designs, installs, monitors and services security systems for industrial, government, commercial, residential and national account customers.

A division of Stanley Black & Decker (SWK), STANLEY Security is one of the leading security providers in the United Kingdom and around the world. STANLEY designs, installs, monitors and services security systems for industrial, government, commercial and national account customers. STANLEY's employees have the training, the equipment and the processes they need to deliver the finest security solutions in the industry.

With a presence in over 25 countries globally, Star Defense Logistics & Engineering (SDLE) has extensive experience as an independent distributor of spare parts for military vehicles and equipment. They are also the official supplier of NATO and the United Nations. SDLE is also a global manufacturer and designer of UAVs/Drones. They also specialise in the development and integration of unmanned aerial systems for defense and security.

Starr Computer Solutions provides various security services, such as alarm system monitoring, alarm system installation, alarm system installation and camera system installation.

Established in 1992, State Digital Security Ltd. installs security alarms in the home and security systems for business premises. The company is headquartered in Cranleigh, Surrey and its services cover London, the Home Counties and the South of England.

Status Alarms Limited is a fully approved NSI GOLD MEMBER for intruder alarms, closed circuit television and door access control installations. The company has installed and maintained all types of security from a single circuit garden shed to residential homes, public buildings, schools, colleges, universities, police stations, fire stations, hotels, leisure complexes, museums and art galleries. Status Alarms has over 7,500 clients locally.

Incorporated in 2001, Status Security Systems specialise in the design, installation and maintenance of all aspects of electronic security equipment in the domestic, commercial and industrial markets.

Stay In Sight provides top quality security cameras & installation for an affordable price. The company provides live viewing cameras viewable from anywhere in the world on any laptop, CPU, smartphone or tablet at anytime.

Established for over twenty years, the Steadfast Group Ltd is a leading provider of security systems and services throughout County Durham, North East England. The company has expertise across a diverse range of industry sectors and provide both security systems and services from manned guarding and mobile patrols to CCTV installations and remote monitoring.

Steadicopter designs, builds and manufactures state of the art Rotary Unmanned Aerial Systems (RUAS). Over the past several years, Steadicopter developed various unmanned rotorcrafts based on its successful Flight Control System. They are a globally renowned provider of advanced Unmanned Robotics Helicopters.

Steehold is a major security solutions provider, predominantly for Africa, based in Ghana. The company provides IP CCTV and video surveillance systems, fire engineering systems and fleet management systems, among other solutions.

Stefanton is a security company that deals in the installation of cctv cameras, GPS trackers and other electronic security systems.

Stewart Intruder Alarms Ltd offers security products like CCTV with solid after sales support in Belfast. The company provides a wide range of security services and equipment in Belfast. Security services include a variety of jobs ranging from personnel services, equipment and devices, along with the planning and deployment necessary to make them effective.

Stocksigns Ltd is a supplier of health and safety signs. The company covers signage requirements of fire safety, quarries, water safety, first aid, traffic & highways. The wide services provided by Stocksigns Ltd. extend till MoD signage and local housing associations.

Stokoe Communications offer Turnkey Solutions for any Communication Application. Its comprehensive product line includes the latest in cutting-edge Digital CCTV, Structured Cabling, Process Monitoring, Access Control , Commercial Paging Systems, A/V and Presentation Products. Stokoe supplies and installs products and services for hospitals, child care centres, police, government, schools, universities, airports, corporations and more.

Stölting Service Group provides qualified personnel and state-of-the-art technology, while guaranteeing the smooth execution and processing of events. Stölting provides services such as alarm activation & alarm tracking, video disconnection & video alert tracking, fire protection and fire services, emergency call and service centres, intruder alarm systems, access control systems and video surveillance systems.

Stone Security has been driving the implementation of network-based surveillance, access control and intrusion systems for nearly 8 years. Stone has been nationally recognised for their work by two of the most influential IP surveillance companies in the industry. This recognition along with a distinguished list of clients has made Stone Security the most trusted and sought after security integrator in the region

Stran Security Systems specialises in supplying and installing security systems for commercial and residential customers throughout Northern Ireland. From fire alarms and burglar alarms to CCTV surveillance and access control, Stran Security provides safety to its customers.

Strauss Security Solutions was established in 1927 by E.O. Strauss with one simple philosophy in mind.

StrongBox Security Systesms is an SSAIB accredited, insurance approved company who both supply and install monitored burglar alarm systems connected to a dedicated 24hr monitoring station. The company designs and installs bespoke security systems for both the modern home and business premises. Specialising in intruder alarms, CCTV, access control, active fire systems, gate automation and lock smithing.

Stronghold Lock & Security is a locksmith/security integration company in the New Hampshire region helping businesses and individuals to better protect themselves.

Stronghold Lock & Security LLC helps people, organisations, & small businesses looking for a locksmith in Portsmouth NH and Southern NH who care about their security and struggle with issues of theft or other crimes. Stronghold Lock & Security offers access control, security camera, & lock sales & installations.

Stroud Alarms Ltd is Gloucestershire’s provider in specialist fire, safety and security solutions for domestic or commercial concerns. The company offers access control, barriers and gates, CCTV, emergency lighting, fire alarms, fire extinguishers, lone worker devices, intruder alarm and monitoring services etc.