Greg is a founding partner of Anton Collins Mitchell LLP (ACM) and has helped lead ACM in becoming a premier CPA firm in the Rocky Mountain Region having been named a “Fastest Growing Private Company” and a “Best Company to Work For”. He served as Chair of the Board of Directors of the American Institute of Certified Public Accountants (AICPA) 2011/2012. Greg has been Recognized as one of the 2011 Top Most Influential People by Accounting Today. He is also a past Chair of the Colorado Society of CPA's Board of Directors. His career as a CPA began with BDO USA, LLP where he became the Office Managing Partner of the Assurance Business Line for BDO’s Denver office.

During his career Greg has provided accounting auditing and consulting services to clients in many industries. He has consulted on debt and equity offerings ranging from $5 to $250 million and M&A transactions over $1.0 billion, including IPO’s in the United States of America and the United Kingdom.

Greg is a past President of the University of Northern Colorado (UNC) Alumni Association and past chair of the UNC School of Accountancy Advisory Board. He also co-chaired the Colorado Society of CPA's Foundation Centennial Scholarship Campaign which successfully raised over $1.0 million for college accounting scholarships. Greg is a recipient of the Honored Alumni Award from UNC for his contributions to business, and he has been recognized as a top business news maker by the Denver Business Journal. He has a numerous community and charitable involvements including: Junior Achievement Board Member, Colorado Concern Member, Appointment to Governor’s Early Childhood Leadership Commission and a member of the CEO Roundtable of Executives Partnering to Invest in Children (EPIC).