Mark Hilbert Dierkes

Dearborn Partners LLC (Dearborn) is an independent, privately held boutique investment management firm headquartered in Chicago, Illinois. The firm was founded in 1997 by Jerome Hickey. The firm provides investment management services to investment advisors, high net-worth families, and institutional investor.

William Blair & Co. LLC (William Blair) is a SEC-registered broker/dealer firm headquartered in Chicago, Illinois. The firm was founded by William McCormick Blair in 1935 and is a subsidiary of WBC Holdings LP. Until 1941, they were known as Blair, Bonner & Co. William Blair provides broking services to individual, institutional and issuing clients.

Protection Mutual Insurance Co/Il provides highly protected risk underwriting for property. The private company is based in Park Ridge, IL and has subsidiaries in United States.

Wintrust Capital Management LLC is a registered investment advisor headquartered in Chicago. The firm is also known as Great Lakes Advisors LLC. Wintrust traces its origin to 1931 when Wayne Hummer, George Barnes and Harry Baum formed a financial services firm that provided investment advice to small and medium-sized banks. In 1981, after serving investors for 50 years, Wayne Hummer Management Co. was formed to provide discretionary, fee-based, investment management services. In 2002, Wayne Hummer Management Co. merged with Wintrust Financial Corp. (NasdaqGS: WTFC), a Chicago-based a financial services holding company and the firm became known as Wintrust Capital Management. Wintrust Capital Management consists of 3 divisions: Wayne Hummer Investments, the Chicago Trust Co. and Wayne Hummer Asset Management Co.