United Airlines, Inc

Chicago Convention and Tourism Bureau, founded in 1943, aims to promote Chicago as a destination for all types of customers and generating revenue for the city s visitor industry. It emphasizes on sales and marketing of McCormick Place and Navy Pier as venues for major events. It has various departments, including bureau services that works with the convention sales department as a liaison between meeting planners, its members and city offices. Its One-Stop Chicago department provides housing, transportation and preregistration services for conventions and trade shows. The bureau also has sales-tourism, marketing, public relations, marketing communications, and research departments. Its membership department recruits and retains hospitality-related businesses for membership, and has a promotions and special events department as well. The bureau works in partnership with the Metropolitan Pier and Exposition Authority, and Illinois Department of Commerce and Economic Opportunity s Bureau of Tourism. In addition to its Chicago office, the bureau has an office in Silver Spring, Md.

Critical Mass is a full-service advertising agency that offers a range of marketing opportunities for business clients. The agency has been in operation for more than 10 years. It maintains over five office locations. The agency employs a staff of up to 500 individuals. It conducts field research, as well as competitive audits. Critical Mass offers media design and development services. The agency also provides content and digital asset management services. It offers database and profile development services. In addition, the agency media planning and buying and search engine marketing and optimization solutions. Critical Mass clients include Mercedes-Benz, Dell and Rolex.

AAR is one of the world s leading aviation support companies. Through its diverse family of businesses, it provides a broad range of products and services to meet the demands of its commercial and government customers, such as aircraft engine parts supply, inventory management programs, aircraft modifications and upgrades, systems installation, and aircraft sales and leasing. AAR supports a diverse group of approximately 13,000 customers that manufacture, maintain or fly aircraft, including American Airlines, Southwest Airlines, United Airlines, Airborne Express, Boeing, General Electric and the governments of Israel, Japan and the United States. Founded in 1951, AAR is headquartered in Wood Dale, Ill., a suburb of Chicago. The company employs more than 3,500 people in 40 international facilities.