The contract for the Port Authority of New York & New Jersey involves the provision of integrity monitoring services on an as-needed basis.
Construction risk manager Hill and accounting firm CohnReznick will assist with the oversight to ensure work is to high ethical standards, free from unethical, improper and illegal conduct.
The multi-year contract has an estimated value to the joint venture of up to US$11.3m (£7.4m).
"The modernisation of LaGuardia Airport is a critical infrastructure project for air passengers in New York City," said Peter Wallace, senior vice president with Hill's Construction Claims Group. "Our joint venture team looks forward to ensuring that this project is implemented with high levels of integrity.”