Mark Callin

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.

Real Foundation, Inc. is a holding company, which provides management and technology consulting services to real estate industries. Its services include business process improvement, business intelligence, diagnostic analysis, solutions implementation, strategic information systems planning, and system integration services. The company was founded by Christopher Shaida, Mark Callin, and David W. Stanford in 2000 and is headquartered in Addison, TX.