The acquisition of DMQA, which is headquartered in Maltby, South Yorkshire and has offices in York, gives Downer EDI a foothold in the UK market.
DMQA, which is to be renamed Works Infrastructure, has track maintenance and rail safety training contracts with Network Rail, among others.
DMQA Holdings, the company behind the revitalisation of The Boulevard, have now signed a lease with the local council, who own the stadium, and work has now commenced to bring it up to the required standard.
Shaun Rennison, operations manager for DMQA, said: "We had hoped to open this month, but we've been held up by paperwork.
The boss of DMQA Holdings, a development and leisure company, is now very close to completing the deal that will see The Boulevard open its doors once again to racegoers.
However, the council have been in discussions with DMQA for some time now and are delighted with the prospect of greyhound racing returning.
GREYHOUND racing could return to Hull by the end of June after leisure firm DMQA
Holdings Ltd agreed in principle a deal to take over the running of the Boulevard stadium with owners Hull City Council, writes Jonathan Kay.