- MAESTRO INVESTMENTS provides customized consulting and investment solutions. We are a group company of MAESTRO CORPORATE GROUP. We partner with exceptional founders with unique insights, from inception through all phases of growth. MAESTRO CORPORATE GROUP is headquartered in Chicago and has also offices in New York, Washington, D.C. and London. With 21 subsidiaries we are growing every day. Our expertise varies from international trade to art. Our London office is a center for our European investments.