Duane R. Kullberg

Cboe Exchange, Inc. provides options exchange services. It trades equity options, security index options, options on exchange traded notes and products, binary options, one-week and quarterly options, long-term equity anticipation securities options, and flexible exchange options. The firm also provides information on various stock and options trading strategies, options trading tools, stock and option quotes and data; and options information and education. Additionally, they offer access to product information, conference notices, portfolio management tools, and educational materials for institutional investors and products and strategies for advisors to protect client’s portfolios. The company was founded in 1973 and is headquartered in Chicago, IL.

Delos Acquisition Corp. is a blank check company. It is primarily seeking to acquire control of a business services or information services company in North America. The company will liquidate if it has not initiated a business combination within 24 months of its offering. Delos Acquisition Corp. was organized in January 2008 and is located in Northbrook, IL

Nuveen Investments, Inc. provides investment management and related services to retail and institutional investors. It offers investment management capabilities across a diversified set of asset classes and investment strategies through its investment management affiliates, including municipal bond, investment grade, global and high-yield bond, floating-rate bank loan, preferred securities, growth equity, value equity, global and international equity, equity income, core equity, equity index, quantitative and enhanced equity, asset allocation, balanced strategies, real asset and commodity. The company was founded by John Nuveen in 1898 and is headquartered in Chicago, IL.

Carlson, Inc. operates hotels and restaurants. It offers hospitality and travel management services to organizations operating in oil and gas, diversified resources and mining, offshore, marine services, and alternative energies sectors; and government institutions and non-governmental organizations. The firm's Its brands include Radisson Hotels & Resorts, Radisson Seven Seas Cruises, and Carlson Wagonlit Travel, among others. The company was founded by Curtis L. Carlson in 1938 and is headquartered in Minnetonka, MN.

National Association of Corporate Directors provides online and print information services to directors of public companies. It offers in-boardroom education, evaluation, governance reviews, board composition and succession planning, board recruitment, ongoing advisory, insights, and analytics services. The company was founded in 1977 and is headquartered in Arlington, VA.

The Commercial Club of Chicago works to shape the future of the region to make it a better place for everyone to live, work, and do business. The non-profit company is based in Chicago, IL. The company's civic committee has announced violence reduction goals and commitments to help address public safety.