Leadership and Senior Management

Quantum Materials has assembled a world-class team of business leaders, advanced materials experts, technologists and financial operations executives to form its core leadership team. 

Stephen Squires

Stephen Squires

President & CEO

Stephen Squires has more than 30 years experience in advanced materials, nanotechnology and other emerging technologies. Prior to forming Quantum Materials Corporation, Mr. Squires consulted on these fields with emphasis on applications engineering, strategic planning, commercialization and marketing. From 1983 to 2001, he was Founder and CEO of Aviation Composite Technologies Inc., which he grew to more than 200 employees and $20 million in revenue. ACT was merged with USDR Aerospace in 2001. In the late 1970s at McDonnell Douglas he developed and adapted advanced materials for combat aircraft applications. 

Mr. Squires continues to pursue his lifelong interest in advanced materials, especially Tetrapod Quantum Dots and other semiconductor nanocrystals with unique nanoscale quantum features. Under his leadership, Quantum Materials has gathered or originated quantum dot technology related to unique QD synthesis, scaling of QD production, and QD printing technologies to position the company for leadership and growth in these areas.

Robert Phillips CFO

Robert Phillips


Robert Phillips has extensive experience as a consultant with positions in accounting, finance, Securities and Exchange Commission (SEC) financial reporting, Sarbanes Oxley (SOX) compliance and strategic planning in industries as diverse as software, hardware manufacturing, medical technology and global communication services.

 Less than two years after completing his MBA at Texas A&M, he became CFO of a publicly traded company that was experiencing a difficult turnaround.  A few years later he again became CFO and Chief Strategy Officer at publicly traded SecureCare Technologies, a medical technology spin-out.

His early CFO experience led him to positions and consulting engagements ranging from the CFO of iStream Technologies, a startup business process management company specializing in regulatory compliance, to global scale Apple, where he was a managing consultant of a high transaction volume stock operations team. There he managed accounting and related 10-Q and 10-K financial equity disclosure and technical accounting assessments, as well as the transitioning of the department's operational site from Cupertino to Austin. 

He was also VP of Venture Development at a venture backed e-commerce startup incubator in Austin. He has served as Controller of Rocket Gaming Systems as well as Financial Reporting and Planning Director at Multimedia Games, and at Rignet during its IPO.  

As financial consultant at Bridgepoint Consulting Group, he has held CFO services, Interim Controller and SEC Financial Reporting positions at Phunware, Crossroads Systems, ActivePower, Harden Healthcare, ArthroCare, Boardbooks.com, Rainmaker Technologies and Fallbrook Technologies.  He also undertook financial consulting and CFO services engagements at multinational companie,s including BMC Software, Natco Group, Respironics and FIC Group. 

Jay Williams CTO

Jay Williams


Jay Williams has been a Chief Technology Officer and consultant to many companies in the Fortune 500. As a consultant, he has developed a highly refined process for managing a company’s technology infrastructure, including applications, security, and network assets.

Mr. Williams is a highly sought-after enterprise systems architect and problem solver. He has advised a number of high profile technology companies on their products and is known for a rare combination of deep technology expertise, expert problem solving ability and business acumen. 

He is widely respected by peers and has influenced many pivotal technology consortia and industry steering groups. Mr. Williams regularly consults with senior technology and business executives and is frequently consulted by venture and capital investors for analyses of new technology strategies.

John Hartigan

John Hartigan


John Hartigan founded the first of his many businesses at 15 years of age: a tennis court washing service. When the rapid growth of the business began to interfere with his education, his parents made him sell it and focus on his schoolwork. Now, 30 years on, Mr. Hartigan has founded and led multiple startups and early growth projects, achieving success through strategic partnerships with a number of Fortune 500 companies. 

Over the past four years, he has focused on practical business applications of blockchain and distributed ledger technologies. Most recently, Mr. Hartigan served as CEO of Intiva Health, launching the first enterprise decentralized application for healthcare provider credentialing.

As a blockchain and DLT evangelist, Mr. Hartigan is frequently invited to speak at events around the world to share and discuss the impact of blockchain in our daily lives.