[3] A new company, Trans-Island Bus Services, was founded on 31 May 1982, ordering a fleet of 250 buses including 90 Hinos.

[8] On 27 April, TIBS was listed on SESDAQ, although Ng Ser Miang retained a majority shareholding.

[12] In 1995, as part of the government's plan to make the local bus system more competitive, 16 SBS Transit services were handed over to TIBS along with the tender to operate bus services in the north-east corridor, mainly the developing towns Sengkang and Punggol as well as Bukit Panjang.

On 26 November 2012, 170 bus drivers (all of whom were foreign nationals from China), refused to leave their living quarters for work.

The Ministry of Manpower considered it an illegal strike since the group failed to give a 14 days notice prior to disrupting an essential public service, as is required by the local laws.

In 2014, SMRT bought its first double decker bus, the Alexander Dennis Enviro 500 MMC.

[32] On 18 and 25 March 2018, SMRT handed over Yishun services under Seletar package to SBS Transit.

On 23 January 2021, SMRT relocated Bukit Panjang Temporary Bus Park to Gali Batu Terminal.

On 13 June, SMRT opened its third and also largest integrated transport hub in Singapore, Woodlands.

[34] From 5 September to 3 October, SMRT handed over management of Yishun Integrated Transport Hub & Sembawang Interchange and Yishun, Woodlands & Sembawang / Yio Chu Kang services under Sembawang-Yishun package to Tower Transit Singapore in 3 separate tranches.

On 18 August 2023, the Land Transport Authority announced that SMRT had won the bid for the Jurong West Bus Package.

[35] On 1 & 15 September 2024, SMRT took over management of Soon Lee Depot, Boon Lay & Joo Koon Integrated Transport Hub and Tuas Terminal and Boon Lay, Joo Koon / Tuas / Soon Lee services under Jurong West package from SBS Transit.

[43] It was the only operator of articulated buses in Singapore until 2018, when the Seletar Package transitioned to a Tendered Contract (TC).

These buses are Volvo B9TL (Wright Eclipse Gemini 2), Scania K230UB, and Mercedes-Benz O530 Citaro, all originally built to SBS Transit technical and interior specifications.

[49] Subsequent bus purchases during the 1990s included the Mercedes-Benz O405, the Scania L113CRL, Dennis Lance and Hino HS3KRKK.

SBS Transit became a tenant as they have insufficient parking at Bukit Batok & Ulu Pandan depots.