Michael B. Clark

Ernst & Young LLP engages in the provision of accounting, assurance, tax, transaction, and advisory services. It specializes in the actuarial, analytics and big data, cyber security, accounting compliance and reporting, center for board matters, international financial reporting standards, country tax advisory, global trade, tax accounting, and climate change and sustainability. The company was founded in 1989 and is headquartered in New York, NY.

Harland Clarke Corp. engages in provision of testing and assessment of products and services to the educational, financial institution, and commercial markets. It operates in three segments: Printed Products, Software, and Services. It provides services to financial institutional markets, including banks, credit unions, thrifts, brokerage houses, and financial software companies. The company was founded in 2007 and is headquartered in San Antonio, TX.

Xenex Disinfection Services, Inc. provides ultraviolet room disinfection systems for healthcare facilities. The firm's patented pulsed xenon UV room disinfection system is a pesticidal device used for the advanced cleaning of healthcare facilities and due to its speed and ease of use, the Xenex system has proven to integrate smoothly into hospital cleaning operations. The company eliminates harmful bacteria, viruses and spores that can cause hospital acquired infections in the patient environment, and to become the new standard method for disinfection in healthcare facilities worldwide. The company was founded by Julie A. Stachowiak, Brian Cruver and Mark Stibich in August 2008 and is headquartered in San Antonio, TX.

The American Institute of Certified Public Accountants provides vocational education in accounting. The company provides services to the accounting community, regulatory bodies, and other organizations. It also operates in Jersey City, Washington, and Lewisville. It was founded in 1887 and is headquartered in New York City, NY.

HollyFrontier Corp. is an independent petroleum refiner and marketer. It specializes in gasoline, diesel fuel, jet fuel, and modified asphalt. The firm operates through the following segments: Refining, Lubricants and Specialty Products, and Holly Energy Partners LP (HEP). The Refining segment includes the operations in its El Dorado, Tulsa, Navajo, Cheyenne, and Woods Cross Refineries. The Lubricants and Specialty Products segment offers base oil production activities, by-product sales to third parties, and intra-segment base oil sales, which includes the purchase of base oils and the blending, packaging, marketing and distribution, and sales of finished lubricants and specialty products to third parties. The HEP segment relates to all of the operations of HEP. The company was founded in 1947 and is headquartered in Dallas, TX.

Arthur Andersen LLP used to provide accounting services. It was also into consulting services for clients that operate businesses throughout the United States and around the world. Arthur Andersen was founded in 1913 and was headquartered in Chicago, IL.