Michael O'Halleran

Aon Plc is engaged in the provision of a range of risk, retirement, and health solutions. It operates through Aon United segment. The Aon United segment gives advice and solutions to clients focused on risk, retirement, and health through five principal products and service revenue lines: Commercial Risk Solutions, Reinsurance Solutions, Retirement Solutions, Health Solutions, and Data and Analytic Services. The Commercial Risk Solutions includes retail brokerage, cyber solutions, global risk consulting, and captives. The Reinsurance Solutions comprises treaty and facultative reinsurance brokerage and capital markets. The Retirement Solutions consists core retirement, investment consulting, and talent, rewards and performance. The Health Solutions involves in heath and benefits brokerage and healthcare exchanges. The Data and Analytic Services composes of Affinity, Aon InPoint, and ReView. The company was founded in 1979 and is headquartered in London, the United Kingdom.

General Reinsurance Corp. is engaged in the provision of life and non-life reinsurance solutions. Its solution areas encompass aviation, life and health, treaty, and facultative insurance solutions. The firm also offers risk assessment, management, and business consulting services. The company was founded on February 28, 1973 and is headquartered in Stamford, CT.

Employers Insurance Company of Wausau provides property and casualty insurance services. Its products include commercial auto, general liability, workers compensation, and property insurance. The company's services include loss prevention, and claims management services. It was founded in 1911 and is headquartered in Wausau, WI.

NuVasive, Inc. engages in the development, manufacture, sale, and provision of procedural solutions for spine surgery. It offers a comprehensive portfolio of procedurally integrated spine surgery solutions, including surgical access instruments, spinal implants, fixation systems, biologics, and enabling technologies, as well as systems and services for intraoperative neuromonitoring. The company was founded by Alexis V. Lukianov on July 21, 1997 and is headquartered in San Diego, CA.

Aon Corp. provides insurance services. The company is headquartered in Springfield, IL.

Chicago Theatre Group, Inc. encompasses a drama school and professional acting services. It produces classic and contemporary works which gives voice to wide range of artists and visions. The company was founded in July 1922 and is headquartered in Chicago, IL.

Ryan Specialty Group LLC engages in the provision of brokerage, underwriting and insurance services. Its products and services include allied healthcare, alternative energy, commercial property, cargo, distribution and claim management, oil and gas exploration, tax insurance and wind and earthquake buybacks. The firm offers property, casualty, transportation and professional liability risks. The company was founded by Patrick G. Ryan, Sr. in 2010 and is headquartered in Chicago, IL.

The American Ireland Fund raises funds for the support programs of peace and reconciliation, arts and culture, education, and community development throughout the island of Ireland. The company was founded by Anthony J.F. O'Reilly and Daniel M. Rooney in 1976 and is headquartered in Boston, MA.

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.

Part of Cardinal Health, Inc., Allegiance Corp. distributes pharmaceuticals and medical supplies. The company is based in Dublin, OH. Allegiance was acquired by Cardinal Health, Inc. on February 03, 1999 for $5,600.38 million.

Manchesterstory Group LLC (ManchesterStory Group) is a venture capital firm founded in 2017 by Matthew P. Kinley and David Wayne Miles. The firm is headquartered in West Des Moines, Iowa.