Mission Focused. Legacy Inspired. Community Driven.
A Wholly Owned Navajo Nation Corporation

DDC - A Holding Company


Leverage our legacy to advance the future of the Navajo Nation and achieve sustainable community prosperity.


To provide government agencies and commercial organizations with high-quality IT, professional, environmental, and research and development services that support our clients’ missions while building upon the legacy of the Navajo Nation to elevate our people and the communities we serve.


Commitment to Excellence
Devoted Service
Unwavering Integrity
Bold Ingenuity
Community Conscious
Heritage Inspired

Our Story

Navajo People, Diné, uphold a storied legacy of resourcefulness and adaptability. Resilient by nature, Navajos have leveraged their ingenuity to drive advancement throughout history.

Inspired by our legacy, Diné Development Corporation (DDC) was created to generate economic prosperity for the Navajo Nation by providing government agencies and commercial firms with high-quality IT, professional, environmental, research and development services. Through strategic expansion, our corporation has grown to encompass a dynamic portfolio of companies that offer a wide range of capabilities. Since our inception in 2004, our subsidiaries have built an extensive track record of excellence in solving our clients’ dynamic challenges.

Our core values reflect our heritage-inspired identity and present-day calling as an extension of the Navajo Nation. They guide us in fulfilling our commitment to our clients while extending the influence, visibility, and impact of our firm. Leading with quality, integrity, and ingenuity, our teams build value-driven, innovative solutions to advance the missions of defense, healthcare, energy, security, law enforcement, agriculture, and intelligence organizations. Our industry-leading specialists cultivate trusted customer and partner relationships to achieve excellence in support of global operations. Our ability to unite industry best practices and innovation has contributed to our success for more than 17 years.

As DDC evolves, we are committed to building on our legacy by becoming a premier IT, professional, environmental, and research and development service leader. With a central focus on growth, we strive to advance the Navajo Nation and communities across the world.

Years of Experience
States Operating
Countries Operating
Number of Subsidiaries
0 M
Austin CEO Headshot

A Message From Our CEO

2023 represents a year of strategic growth and opportunity for DDC. The challenges of the past two years have only made us stronger, and we are fueled by an elevated sense of clarity and focus.

Rooted in our Navajo DNA, our organization upholds a vibrant legacy that we celebrate while striving to reach new heights – within our organization, in support of our clients and partners, in alignment with the Navajo Nation, and among our community. As our family of companies evolve, we affirm our 19-year commitment to our clients and the Nation while heralding a new era of strategic growth.

In alignment with this expansion, we have launched a brand transformation that reflects our guiding vision and embodies our core values. Our new look and feel highlights our momentum in advancing government agencies and commercial organizations, the Navajo Nation, and communities across the world as a premier IT, professional, environmental, and research and development service leader.

I encourage you to familiarize yourselves with our brand. Through this transformation, we remain committed to our founding identity in continuing to deliver best-in-class services while empowering the Navajo Nation for future generations.

We are mission focused – legacy inspired – community driven. We Are DDC.


Austin Tsosie, CEO, Diné Development Corporation

Navajo Impact

Inspired by our rich legacy, DDC is rooted in our commitment to the Navajo Nation. We strive to create sustainable economic prosperity to overcome the Nation’s challenges and ensure the growth and empowerment of its People for future generations. Through strategic expansion, DDC contributes economic, leadership, and direct programming resources to promote the advancement of the Navajo Nation and its People. 

Learn more about our DDC sponsorship initiatives by visiting the sponsorship page below or sending inquiries and/or requests  to ddcdonations@ddc-dine.com.

Our History

Meet Our Leadership

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Chief Executive Officer

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Chief Growth and Strategy Officer

Jackie Murray WP 1


Chief Operating Officer

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Chief Financial Officer

Board Of Directors


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Shareholder Representatives

Mr. Vince James, Shareholder Representative

Shawna Ann Claw, Shareholder Representative

Norman M. Begay, Shareholder Representative

Dr. Andy Nez, Shareholder Representative

Nathan Notah, Shareholder Representative

Contact Us

Give us a call


Email Us


Headquarters Address

8840 E. Chaparral Rd.
Suite 145
Scottsdale, AZ 85250

Austin Tsosie
Chief Executive Officer

As DDC Chief Executive Officer, former President of DDC IT Services, and Diné tribal member, Austin Tsosie has been very successful in shaping the organization’s culture, building operations, fueling business development, and enhancing tribal relations to position DDC subsidiaries as elite, Navajo owned businesses.

Austin obtained a Bachelor of Science in computer science from Weber State University and master’s degree in business administration from the University of Dallas. He began his career as a network administrator and software engineer for small companies. As his career progressed, he fulfilled project management positions in support of worldwide operations. He led the creation of project management offices and developed management processes for three large companies across various industries. He served as a Principal PPM consultant for a global company that offers business consulting, technology, engineering, and outsourcing services. Austin served as the United States PPM resource in supporting firms that spanned the manufacturing, entertainment, and banking industries. Austin served as DDC IT Services President, in which he grew the company from one employee to more than 100 employees and $16 million in revenue over five years.

Daniel Riggs
Chief Growth Officer

Daniel (Dan) Riggs, Chief Strategy Officer, possesses 20 years of portfolio management and leadership experience in the federal contracting industry. In these roles, he oversaw portfolios across Department of Defense, NASA, and commercial markets. As an innovative thought leader in the industry, he brings success in business development and growth sectors.

Dan Riggs holds a Bachelor of Science in management information systems and finance from Wright State University. He was also a member of the Ohio Air National Guard and distinguished graduate of Basic Military Training School and Reserve Officer Training Corps. Dan has obtained multiple project management and technology certifications in a variety of disciplines throughout his career.

Jacqueline "Jackie" Murray
Chief OPerating Officer

Jacqueline “Jackie” Murray, Chief Operating Officer, brings more than 30 years of experience in developing and operating large-scale, data-intensive software solutions for the Department of Defense, federal agencies, state and local governments, and commercial clients. Her background in various roles including federal employee for the U.S. Air Force, member of a Federally Funded Research and Development Center, senior leader of a Fortune 500 company, and growth strategist for a DoD engineering company uniquely positions Jackie to leverage a wealth of experience to lead operations, optimize standardization, and enable growth across the DDC family of companies.

Jackie holds a Master of Science in Applied Mathematics, Master of Science in Management Science, and Bachelor of Science in Mathematics from the University of Dayton. Jackie has obtained various Defense Acquisition University, project management, and information technology certifications in a variety of disciplines throughout her career. Jackie’s passion lies in mentoring and investing in the development of people and ensuring that individuals are given opportunities to be their best selves.

Zachary Sampson
Chief Financial Officer

Zachary Sampson’s background is a blend of corporate finance and entrepreneurship. He is the Chief Financial Officer for Diné Development Corporation (DDC), a Navajo Nation owned company. He earned an undergraduate degree in finance from the University of Massachusetts, a CPA designation, and an MBA in finance from Rice University. Working for some of the largest and most prestigious international firms, Zach’s corporate experience includes running the finance group for a publicly traded biotech firm, mergers and acquisitions for several Fortune 50 companies, and commodities and equity derivatives trading. As a successful entrepreneur, Zach has a proven track record of developing and growing businesses across different industries.

Tazbah Mccullah
Board Member

Tazbah McCullah is a Diné tribal member and possesses an extensive career in communications. She was recently appointed as the General Manager for KSFR 101.1 FM, Santa Fe Public Radio. Previously, Ms. McCullah served as the Marketing/Advertising Director for Indian Pueblos Marketing, Inc./Indian Pueblo Cultural Center, Inc. Ms. McCullah served in leading communications roles, including Vice President of the Navajo Nation; Press Secretary for the Navajo Nation Office of the President; General Manager for KTNN/KWRK Radio; and Associate Producer for KAET-TV, an award-winning weekly news analysis program.

Ms. McCullah was also the managing partner of the TM Group, a land-use planning and architectural design company that produces designs used on the Navajo Nation. Ms. McCullah holds a Bachelor of Arts degree in journalism from the University of New Mexico. She is also a member of the NOVA Scholarship Committee, which she helped to establish in 2010.

Nicole Johnny
Board Member

Nicole Johnny is a Diné tribal member and possesses extensive experience in real estate and investment financing with a specialty in researching and analyzing business development. Her background is highlighted by experience in investment banking with RBC Capital Markets, tribal land valuations from both federal and Tribal perspectives, and commercial real estate development. She received a Master of Business Administration in finance from Pepperdine University and undergraduate degree in finance and economics.

Elwood Pahi
Board Member

Elwood Pahi is a Diné tribal member and cofounder and President of Nahata Dziil 14-R Ranch Corporation – Navajo Beef Program. 14-R Ranch is a nonprofit, co-op model organization founded in 2012 to support displaced Navajo ranchers to enable them to thrive in the cattle industry. Elwood previously served as a Senior System Health Engineer and Mechanical Engineer for the Arizona Public Service for 36 years.

Mr. Pahi received a Bachelor of Science in mechanical engineering from Northern Arizona University and is member of the American Society of Mechanical Engineers and American Indian Science and Engineering Society.

Kim Kanuho
Board Member

Kim Kanuho is Diné from the Tábąąhí (Water’s Edge People) born for the Tódích’íinii (Bitter Water People) clan and originally from Fort Defiance, AZ. Ms. Kanuho is the President of Fourth World Design Group LLC, a Diné-owned community planning consulting firm dedicated to assisting Tribal Nations with their diverse community and economic planning initiatives. Kim is a community planner indigenizing the planning and design process by weaving in cultural values to co-create Tribal communities that best reflect Tribes’ unique culture, language, and traditional way of life. Her expertise is centered on community land use planning, master planning, and economic planning on Tribal lands, which includes an understanding of Tribal sovereignty, land processes, geographical locations, and cultural values. She has over fifteen years of direct experience working on various projects with Tribes in the planning, architecture, and construction field. Growing up on the Navajo Nation, Kim is passionate about applying her education, experience, and cultural knowledge to promote positive planning strategies for the future growth and development toward creating self-sustaining Tribal Nations.

Ms. Kanuho is an alumna of Arizona State University College of Architecture and Design where she received a Bachelor of Science in Urban Planning and Master of Urban and Environmental Planning. Kim actively serves as a member of the following boards and organizations that advances Indigenous planning, communities and economies in Indian Country: American Planning Association Indigenous Division, Construction in Indian Country Board, Phoenix Indian Center Board, American Indian Council of Architects and Engineers, American Indian Chamber of Commerce of Arizona, and the Dineh Chamber of Commerce.

Todd Francis
Board Member

Todd Francis is a Diné tribal member and financial senior executive who has served in senior management roles with small to medium-sized businesses throughout his career. Over the last 20 years, Todd has been committed to affordable housing efforts, particularly those that benefit and impact Native American families and communities. He currently serves as the Chief Financial Officer/Chief Operating Officer for Native Community Capital, which is headquartered in Laguna, NM. Todd’s management experience includes dual roles as Chief Financial Officer/Chief Operating Officer of a nonprofit Community Development Financial Institution (CDFI), in which he managed residential real estate development, affordable housing services, and mortgage loan products to low-to-moderate income families throughout Maricopa County, AZ. He is a graduate of the University of Arizona.

Mark Freeland Board of the DIrector

Mark Freeland is a former Council Delegate of the 24th Navajo Nation Council, the legislative branch of the Navajo Nation Government. In this role, he served on the Council’s Resources and Development Committee (RDC) regulating authority of the Navajo Nation’s environmental and cultural resources, economic development, and other areas vital to Tribal sustainability. Mr. Freeland formerly served as Executive Staff Assistant for the Navajo Nation Office of the President and Vice President and is currently pursuing an MBA from the University of New Mexico.

Sam rosenfeld
Board Member

Sam Rosenfeld is the Managing Director of SR Advisory, a private advisory firm offering bespoke consulting to a variety of clients. He also serves as the Managing Director of Cenerus providing financial and infrastructure management services delivering efficiency, transparency, and flexibility of financial operations. Prior to his current roles, he led organizations that delivered political and operational risk management and asset management in the international defense sector.

He holds an Australian Financial Services License; MBA from Wharton Business School; MSc in Risk, Crisis, and Disaster Management; and BA in International Relations and Strategic Studies from the University of Leicester. Mr. Rosenfeld is published by the Wharton Financial Institution Center, volunteers through international organizations as a mentor to emerging market entrepreneurs, and advises technology start-ups and funds.

Bradley (Brad) J. Preber
Board Member

Bradley (Brad) J. Preber is the former CEO and Chairman of the Board of Grant Thornton (GTUS), one of the largest audit, tax, and advisory services firms in the U.S. and largest member firm of Grant Thornton International, one of six global networks. Prior to joining GTUS, Brad worked for Touche Ross & Co. and Arthur Andersen serving as an Audit and Advisory Partner. During his tenure at GTUS, Brad served on the Board of Directors for various GTUS sectors and the Center for Audit Quality leading the Anti-Fraud Work Group. Brad is currently a Trustee for the University of New Mexico Foundation and serves on the Board of The Plaza Group.

He holds a BBA from the University of New Mexico where he was inducted into the Robert O. Anderson School of Management Hall of Fame. Brad holds certifications including CPA, CGMA, CFF, CFE, and CCA and was qualified as a financial expert under SEC rules. Brad authored the Wiley book, Financial Expert Witness Communications, and co-authored Data Analytics: Elevating Internal Audit’s Value.