US Ecology has agreed to acquire EQ, a portfolio company of private equity firm Kinderhook Industries, for $465 million. The transaction is expected to be completed in either the second or third quarter of 2014. Houlihan Lokey is advising US Ecology on the deal while Stifel is advising EQ. Wells Fargo Securities and Credit Suisse Securities are arranging for the financing. Based in Wayne, Michigan, EQ is an environmental services and waste management firm.