The $160,000 in contracts to former minister Greg Combet and a former Labor adviser prompted questions from the opposition about the use of closed procurement processes.
A Queensland Audit Office report also found more than 23,500 “unused” mobile devices and phones across 20 departments.
State public service departments spent $175 million on consultants last year with one firm scooping nearly $37 million in fees.
MPs investigating the state of the public service say increasing reliance on outsourcing to labour hire firms affects assistance to veterans.
Wielding power over the corporate world with expensive advice is not McKinsey's only skill.
The federal government is spending more than ever on contracts with the companies.