Securicor plc was one of the United Kingdom's largest security businesses. It was once a constituent of the FTSE 100 Index but merged with Group 4 Falck in 2004.

2001: Securicor comes under fire after September 11 terrorist attacks; the company sells off Securicor Wireless and exits mobile communications market. Company History: Securicor Plc has its eye on global leadership in its core security and distribution businesses, which contribute 97 percent of the company's revenues (communications contribute ...

杰富仕（英語： G4S ）是一家大型保安公司，G4S前身為Securicor，於2004年與Group 4 Falck合併，改名為G4S。

The company was set up in July 2004 when London-based Securicor amalgamated with Danish firm Group 4 Falck. The company offers a range of services, including the supply of security personnel, monitoring equipment, response units and secure prisoner transportation. G4S also works with governments overseas to deliver security services.

Two Global Industry Leaders to Explore Solutions for Renewable Power, Innovative Energy Solutions and Decarbonizing Mobility Operations Allied Universal®, the leading global security and facility services company, and its international business, G4S, have signed a Memorandum of Understanding (MoU) with Shell to accelerate the transition to sustainable solutions for customers and employees ...

Securicor formed a new subsidiary, Securicor Omega Express, and began offering dedicated business-to-business delivery services in 1971. In that year, also, Securicor went public on the London Stock Exchange.

G4S provide integrated security services and products for a wide range of organisations and events across the UK. As a world-leading security system supplier, G4S combine innovation and quality guarding to provide a full end to end solution combining cutting edge technology with high-class manpower services.

Jardine Securicor嘅核心業務計劃有：安保服務、押鈔、貴重物品專遞及儲存服務及電子安全業務等，服務遍及汶萊、中國、香港、印尼、澳門、馬來西亞、泰國同台灣。Jardine Securicor擁有超過800架安保車輛，並為亞洲各地2,000多部自動櫃員機提供服務。

士瑞克保全公司，英文名称为G4S Secure Solutions，缩写为G4S。全球第一大保安公司，为2012年伦敦奥运安保承包商。它于1901年在哥本哈根成立，后迁往英国，公司主要从事小到物业、高级商店和银行的保安，大到名人保镖、现金珠宝押送和警报系统等服务。而在亚洲，士瑞克保全则收购了怡和集团的 ...

G4S（LSE ： GFS、 OMX: G4S）是全球领先的国际安全解决方案供应商，中文名為杰富仕，目前為全球第一大保安公司，也是全球最大的私营雇主，目前在全球125个国家有65.7万名G4S员工；G4S前身為Securicor，於2004年與Group 4 Falck合併，改名為G4S。