Abellio has committed to continue working with 21st Century Fleet Systems, a Journeo company, for a further three years following the renewal of a framework agreement.
The deal will see Abellio become one of the first London operators to benefit from 4G video transfer.
Under the contract, 21st Century will continue to provide CCTV and associated equipment on all new Abellio buses, along with those transferred into their fleet through tendering in London.
In addition, approximately 200 vehicles already installed with the Journeo EDGE internet of things (IoT) gateway will be connected into a new cloud-based Video Management System (VMS), Journeo Transit, which uses 4G video transfer.
The Journeo Transit platform also allows Abellio to connect a wide array of other systems on the bus into a central cloud server, offering real-time access to information.
Russ Singleton, Journeo chief executive, said: "We are delighted that Abellio have asked us to continue providing support services for their safety-critical video systems and supply our innovative solutions for their London bus fleet.
"Our R&D, engineering network and dedicated London support team has helped Abellio consistently achieve first-place rankings in Transport for London's (TfL) measurement of CCTV systems availability and our latest IoT systems provide further enhancements."