Greg has held numerous executive level positions throughout his professional career. Greg Lopez is a Colorado businessman and former mayor of the Town of Parker, Colorado. He and his family have two businesses. One is a small neighborhood bar and grill restauranteur and the other is President of GNL Concepts, a business/project management consulting firm that his wife, Lisa, manages and oversees.

Greg was elected at the age of 27 and was both the Mayor and City Manager at the same time. He is the only veteran (disabled) running for Governor on either side of the isle.

Greg won 33% of the delegate vote at the Republican State Assembly landing him on the ballot for Republican candidate for Colorado Governor in 2018.