At the time, it operated a fleet of five buses on a route connecting the Sydney suburbs of Canley Vale and Edensor Park.

[9] Members of the founding Bosnjak family including Jim continued to hold the remaining shares.

In December 2004, Westbus' Northmead and Seven Hills operations were merged with those of the newly acquired Glenorie Bus Company under the Hillsbus brand.

With debts of $90 million and National Express unwilling to provide further funding, in January 2005 the company was placed into voluntary administration.

[10] The change of ownership saw the company exchange one politically well-connected shareholder, the Bosnjak family,[11] for another, Cabcharge's Reg Kermode.

In August 2006 the routes of Baxter's Bus Lines were purchased by and absorbed into Westbus Region 3 operations.

In 2010 the Transport for NSW white and blue livery began to be applied in line with contractual obligations.