Associate Real Estate Broker

With an ideal combination of empathy, skill, and experience, Associate Broker William Greig leads buyers and sellers to success throughout the Boulder area. A genuine people-person, he leverages his knowledge and calming demeanor to deliver seamless, stress-free experiences.

As a lifelong athlete and former professional triathlete, William is no stranger to hard work, discipline, and perseverance. He formed his entrepreneurial drive as a business owner and later honed his empathic and intuitive nature while earning a master’s degree in Social Work, with an emphasis on interpersonal practice and mental health. Drawn to real estate by his personal experience buying and remodeling homes, William has established a notable reputation for connecting deeply with buyers and sellers and helping them fine-tune their exact objectives. He addresses every situation with a level-headed approach. As a member of The Patrick Brown Group, William truly thrives on helping everyone find their place to feel at home.

A New York native, William now resides in gorgeous Lake of the Pines with his wife Becca, and their wonderful pup, Bella. There, they enjoy hiking, biking, paddle boarding, and swimming.

Agent Details


As a Compass founding agent, Patrick has assembled a team that puts the client first. The Patrick Brown Group provides an edge when helping clients navigate through buying and selling luxury homes, assessing new developments, or designing their dream home from the ground up. Our resourceful in-house team has the knowledge and flexibility to provide our clients with the best service possible.