Early priorities of Transdev were to largely focus upon its four core markets (France, the Netherlands, Germany, and the United States) while disposing of its less profitable ventures based in most other countries to consolidate.

[5] At the time of the announcement, Veolia Transdev declared its intention to concentrate on four main markets (France, the Netherlands, Germany, and the United States), to develop its presence in the United Kingdom, Asia and Australia and to divest from other countries and other activities amounting to about 9–10% of global revenue in 2012/13.

After this announcement, the Caisse des Dépôts et Consignations, for its part, officially reiterated its commitment to Veolia Transdev and its continued support as a shareholder to the group's development.

[6] During early 2012, it was reported that Cube Infrastructure, a fund controlled by the French bank Natixis (Groupe BPCE), was likely to acquire about half of Veolia's stake in Transdev.

[11] The transaction was completed during January 2019, with Rethmann increasing its shareholding to 34% by adding its Rhenus Veniro subsidiary to the Transdev portfolio.

[12] In December 2024, it was announced that Rethmann Group planned to increase its shareholding to 66% with Caisse des Dépôts et Consignations' to reduce its to 34%.

[21] In December 2018, Transdev commenced operating a 10-year contract in the Moravian-Silesian Region serving Bruntál, Krnov, Nový Jičín and Rýmařov.

[22][23] Transdev had previously operated buses in the Czech Republic until they were sold to Arriva in May 2013 (see Central Europe section below).

[24] Transdev's subsidiary Société Varoise de Transports (SVT) has operated two lines of the Bouches du Rhône district network since 1 January 2014, serving a population of more than one million inhabitants.

[25] Transdev also operates many Hérault Transport bus lines in the south of France, and the Montpellier tramway system.

[26] SNCM was finally sold to a Corsican firm Rocca Group in late 2015 and was renamed Maritima Ferries in January 2016.

[32] In June 2019, Transdev was awarded a new contract to operate and maintain the system for another six years, effective 1 December 2019, with an option for a five-year extension.

[34] In November 2018, Transdev was awarded a contract to operate the regional railway network of Hannover; the deal, which covers approximately 9.3 million rail kilometres per year and typically carries in excess of 30 million passengers annually, was valued at in excess of €1.5 billion and is the largest regional rail contract in the history of Transdev Germany to date.

There used to be an additional operation called Veolia Transport Nederland, until the branding was discontinued and replaced by Connexxion during December 2016.

[39] Transdev Netherlands was set up in December 2015 to group the three operations together under one brand, after bringing Connexxion and Veolia Transport Nederland under one management earlier in May that year.

[40] Each operation continued to exist separately with its branding unchanged until the rebranding of Veolia Transport Nederland.

[39] Witte Kruis (Dutch for White Cross) is Transdev's mobile care organization in Netherlands.

[55][56] Transdev also participated in the pre-operation and operation of the Tranvía de Murcia and the Metro Ligero Oeste in Madrid.

[64] During July 2019, Transdev Sweden was awarded a 10-year bus market worth €757 million, comprising five contracts, in the Västra Götaland region in Gothenburg.

[65] Also in July 2019, Transdev announced the acquisition of A Björks AB, a major bus operator active in Central and Northern Sweden.

[24] This acquisition was completed in September 2019, which made Transdev Sweden's third largest public transportation operator.

[67][70] Trident Niven, which was acquired in December 2012, is a London-based private hire company and operates a fleet of 100 cars.

[72] During April 2021, it was announced that Transdev had reached an agreement with Arriva to purchase Yorkshire Tiger, with the business rebranded Team Pennine upon completion in July 2021.

[75] However, the contract was terminated in 2011 when Tramlink Nottingham (a Keolis consortium) was selected as the preferred bidder for the construction of Phase 2 of the light rail and operation of the network.

[76] The last day of operations of Arrow Light Rail was 16 December 2011, few months after the establishment of Veolia Transdev.

[85] Thello was cross-border train services between France and Italy; it was initially organised as a joint venture between Transdev and the Italian state owned railway company Trenitalia.

[89][27] Transdev stated that the operation had been negatively impacted by increased customs controls on account of the European migrant crisis, the Paris terrorist attacks in November 2015 as well as delays caused by railway engineering works.

It was originally named Veolia Transport RATP Asia (VTRA) until the Transdev global rebranding in 2013.

[143] In December 2011, the agreed sale of the Jerusalem Light Rail to Egged was reported to have been held up by the Israeli state.

[146] Transdev, in conjunction with three other operators, runs an 84 km (52 mi) right-of-way bus line of TransMilenio system in Bogotá under the name Connexion Móvil.