AEI Consultants, based in Walnut Creek, California, is an employee-owned company that provides the following mix of services: environmental due diligence and building science consulting, energy efficiency and sustainability, advanced site assessment and remediation, industrial hygiene, and construction consulting & management to a diverse base of real estate, commercial lenders, developers, property management firms, retailers and insurers nationwide, including many Fortune 50 companies. Founded in 1992, AEI has been recognized as one of the nation’s fastest growing environmental firms, with over 20 offices across the U.S. and Europe.