Invesco, the Atlanta-based asset management firm, wants to sell its $18 billion wealth management business, Atlantic Trust Private Wealth Management, Reuters reported, citing a number of named and unnamed sources.

The Atlantic Trust business has $18 billion of assets under management. It is not a core business for Invesco, one of the sources is quoted by the news service as saying.

Invesco did not respond to this publication’s request for comment at the time of going to press. Reuters said Invesco declined to comment.

Atlantic Trust has 11 offices across the US and serves clients with at least $5 million in assets. With its nationwide presence and strong brand name, it could be an attractive acquisition, said Jim Campbell, director at Riotto-Jones & Company, a family office consulting firm. He was also one of the sources of the story.

Atlantic Trust was the most well-known brand among 35 private wealth management firms, according to the 2011 Luxury Brand Institute Survey of high net worth individuals.