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Executive Team & Advisory Board
Rion Barnes, Esq., CEO & General Counsel
Rion Barnes, Esq. is the CEO and General Counsel of Attest BioSciences, bringing a strategic vision and strong legal acumen to the company. With a background working in the legal departments of Fortune 500 and 100 companies, including Morgan Stanley and Univar Solutions, Rion has extensive experience navigating complex legal and corporate matters. As a co-founder, Rion has been instrumental in shaping the company's direction and growth, leveraging their expertise in corporate governance and a commitment to health innovation. Dedicated to making cancer screening more accessible and affordable, Rion leads Attest BioSciences with a focus on strategic growth and impactful legal oversight.
Dr. Antoinette Gaston, COO & Chief Scientific Officer
Dr. Antoinette Gaston is the COO and Chief Scientific Officer of Attest BioSciences and a co-founder of the company. She holds a Ph.D. in Molecular Biology and an MBA, combining scientific expertise with strong business acumen. With years of experience in clinical laboratory operations, cancer research, and assay development, Dr. Gaston plays a critical role in the scientific advancement of the company. She is passionate about advancing healthcare through innovative solutions and works tirelessly to ensure that Attest BioSciences delivers high-quality, reliable cancer screening tests. Her leadership and scientific expertise are vital to the company's mission of empowering proactive health management and making proactive health management accessible to all.
Marcus Hall, Chief of Sales and Marketing
Marcus Hall is the Chief of Sales and Marketing at Attest BioSciences, where he leads the company's sales strategies and brand outreach. Marcus brings a wealth of experience from his previous executive roles in sales and marketing at Fortune 500 companies, including Coca-Cola and Caterpillar. His background in working with industry giants has equipped him with a deep understanding of market dynamics and consumer engagement. Marcus is dedicated to driving Attest BioSciences' market presence and fostering strong customer relationships, leveraging his expertise to position the company as a leader in at-home cancer screening.
Alexis Welch-Hoyos, Tech Consultant & Board Member
Alexis Welch-Hoyos is a Tech Consultant and Board Member at Attest BioSciences, bringing her expertise in biomedical engineering and technology development. With a background as a device safety engineer and quality engineer at Abbott, Alexis has a strong foundation in ensuring the safety and reliability of medical devices. Her experience in analyzing and addressing device performance issues has equipped her with a keen eye for quality and innovation. At Attest BioSciences, Alexis provides strategic insights on the technological aspects of the company's services, helping to keep the company at the forefront of health tech innovation. Her role on the board also offers valuable perspectives on leveraging technology to enhance customer experience and streamline operations.
Advisory Board
Attest BioSciences is supported by a distinguished advisory board composed of experts with extensive experience in healthcare, technology, and business. Our board includes former C-suite executives from Fortune 100 companies, successful entrepreneurs with notable startup exits, and leading professionals from the healthcare industry. This diverse and accomplished group provides strategic guidance, industry insights, and valuable connections, helping to drive innovation and ensure the success of Attest BioSciences as we advance our mission to make cancer screening more accessible and effective.