He was previously a managing partner for Davis Langdon in the northwest.
At Mace, Mr Stanion will have a business development role.
He said: “The move to Mace is an exciting opportunity for me and I am confident that through bringing together the great relationships and experience I’ve developed over the past 30 years, I can help to reinforce the strengths that Mace has already shown in this region. It’s an exciting time to be joining this team.”
Mace regional director Steve Gillingham said: “He is a leading professional in construction consultancy in the northwest region and I know we will benefit enormously from his support.”