Donald R. Diamond


Donald Diamond founded Diamond Ventures in 1988, after having been an opportunistic investor in Arizona real estate and partner in a diverse array of operating businesses. A visionary and entrepreneur, Mr. Diamond established Diamond Ventures to expand acquisition and investment activities, while adding management and development capabilities. As Founder, he worked with the Company’s senior management until his passing in 2019, providing strategic guidance and resources for the Diamond Ventures portfolio for today and in the future. Donald Diamond’s legacy with the company continues with his daughter Helaine Levy and grandson Nathan Levy actively involved in the business. Prior to moving to Arizona, Mr. Diamond had a successful career as a commodities broker on Wall Street. Mr. Diamond is remembered for his charismatic personality, keen business acumen, commitment to perpetual learning, engagement in world affairs and government policy and his family’s generous support of charitable causes.

David Goldstein


As President, David Goldstein is responsible for setting the Company’s overall strategic vision and priorities. David determines the market positioning of the Company’s existing portfolio of residential and commercial real estate assets and leads the Company in identifying new investment opportunities. Mr. Goldstein has more than 35 years of experience in real estate and working with various operating companies. David has held the position of President of Diamond Ventures since its inception in 1988. Prior to joining Diamond Ventures, David was a CPA at both Ernst & Whinney and Coopers & Lybrand and was Vice President of Acquisitions and Sales for the Venture West Group, Inc. He received his finance degree from the University of Connecticut and has his M.B.A. degree from the University of Arizona.

Bob Griffin

Managing Partner for DVI Equity Partners

As the Managing Partner for DVI Equity Partners, Bob Griffin is responsible for the companies Technology investments and portfolio management. Bob has been a key player and successful serial entrepreneur in the Software and Services industry for more than 35 years. Prior to joining Diamond Ventures Bob most recently was the Chief Executive Officer for Ayasdi a Silicon Valley Start-up out of Stanford University. In Oct. of 2011 he facilitated the sale of his company, i2, to IBM where he remained as the General Manager for the Safer Planet and Smarter Cities brand until 2017. Bob conducted his undergraduate studies in Business Management at Franklin Pierce College in New Hampshire. He is a distinguished alumnus of the Naval Post Graduate School’s Center for Homeland Defense and Security’s Executive Leadership Program in Monterey, California.

Chad Kolodisner

Executive Vice President

Chad Kolodisner joined Diamond Ventures in 2004. He is responsible for implementing the Company’s strategic plan and operational priorities. He leads company negotiations with strategic partners, including structuring ventures and dispositions. Additionally, Chad oversees new real estate acquisitions and investments in growth companies. Chad has 18 years’ experience in real estate transactions with an emphasis on master-planned communities and serves as the primary contact for the Company’s Rocking K, Saddleback Heights and Verano developments. In addition to his experience as an attorney with private law firms, Chad worked with Del Webb and Pulte Homes in Phoenix. He received his finance degree from Arizona State University and his juris doctorate degree from Harvard Law School.

William Kelley

Chief Financial Officer

Bill Kelley is responsible for project and corporate financing. In addition, Bill heads the Company’s Commercial Division, which consists of a portfolio of industrial, office, retail, mixed-use and hospitality assets. Bill is active in regional economic development efforts and directing the Company’s acquisition of income producing properties. Bill has more than 27 years of commercial real estate experience and has been involved in over $1 billion dollars in real estate transactions.  Prior to joining Diamond Ventures in 2000, Bill had senior management and executive positions with Bourn Properties, Inc., Venture West Group, Inc., and Ernst & Whinney. He received his accounting and finance degree from University of Arizona.

Mark Weinberg

Senior Vice President

Mark Weinberg leads the Company’s Residential Division which includes acquisition, planning, entitlement, construction and management of custom lot communities, builder neighborhoods and master planned communities. In addition, Mark oversees Red Rock Utilities, the Company’s water and sewer utility. Mark leads the Company’s commitment to acquire and develop new residential properties, as well as property due diligence. Mark has more than 30 years of experience in Arizona land development and project construction. Prior to joining Diamond Ventures in 1994, Mark served as the General Manager for the Canada Hills Development Company where he was responsible for overseeing the development and management of a resort hotel and country club, several golf courses, a utility company and various real estate projects. He received his business administration and psychology degree from the University of New Hampshire.

Priscilla Storm

Vice President

With more than 30 years of diverse real estate and business experience, Priscilla Storm oversees special projects for the Company’s real estate portfolio. She leads the Company’s evaluation of the real estate regulations specializing in environmental and natural resource conservation issues. She coordinates federal, state and regional government relations. Priscilla serves as the bi-lingual management liaison to investors and Diamond U.S. and Mexico affiliate companies. She is actively involved in identifying new initiatives for the Company. Prior to joining Diamond Ventures in 2001, Priscilla was an executive at the Pascua Yaqui Indian Tribe. She received her degree in communications and border studies from Trinity University and her M.B.A. degree from Texas A & M International University.

Robert Tucker

Project Manager

A licensed civil engineer, Robert Tucker is responsible for managing the Company’s residential and commercial development projects including preliminary due diligence, acquisition, entitlement, design and construction. Robert has more than 15 years of experience in project management. Prior to joining Diamond Ventures in 2004, Robert was an engineer at MMLA Psomas where he specialized in infrastructure and commercial development and residential subdivisions with an emphasis on master-planned community work with national and regional homebuilders. He received his civil engineering degree from the University of Arizona.

Helaine Diamond Levy

Executive Director

Helaine serves as the Executive Director of Diamond Family Philanthropies and also serves as the Director of Community Relations for Diamond Ventures, Inc.  She oversees the philanthropy for her family, the Diamond Foundation and Diamond Ventures and participates with senior management on the Company’s strategic decisions. Helaine actively engages with community leadership organizations on behalf of the Company and the Foundation.  She has been associated with the Company since 1998.  Prior to assuming her current position, Helaine was President of Old Tucson Studios. She received her journalism degree from Boston University.

Nathan Levy

Director of Denver Office

As director of Diamond Venture’s Denver office, Nathan is responsible for developing, acquiring and managing the firm’s real estate and private equity investments in Colorado. He received a master’s degree in business administration and a master’s degree in information systems from Boston University’s Questrom School of Business as well as a bachelor’s degree in international business administration from the University of Denver’s Daniels College of Business.


Dee Alexander, Corporate Secretary/Human Resources
Ngoc Can, Private Equity Analyst
Brian Deatherage, Construction Controller
Bert Dover, Director of Acquisitions
Bob Kolt, Construction Manager
Shannon Murphy, Designated Broker
Tom Zoline, Treasurer/Controller