Executive Leadership Team
Teri Thomas
Chief Executive Officer and Managing Director
Teri Thomas is the CEO and Managing Director of Mach7 Technologies, bringing global experience in healthcare technology, operational leadership, and strategic growth. Before joining Mach7, Teri was CEO of Volpara Health Technologies (ASX:VHT), where she led a successful turnaround and positioned the company for its acquisition by Lunit, where she also served as Chief Business Officer. She previously spent 20 years in a variety of roles at Epic, the leading US electronic medical record company, and held executive roles at Orion Health, overseeing global sales and corporate development.
A registered nurse with a Master of Science degree, Teri pairs clinical insight with a proven track record in scaling businesses, delivering operational efficiencies, and fostering strong, mission-driven cultures. She is committed to leading Mach7 through its next phase of growth and innovation in medical imaging and data management.
Shawni Hadfield
Interim Chief Financial Officer
Shawni Hadfield serves as Interim Chief Financial Officer at Mach7 Technologies, where she leads the company’s financial strategy, planning, and performance. In this role, she partners closely with the executive team to align financial discipline, capital allocation, and operational execution with Mach7’s growth objectives and commitment to innovation in enterprise imaging.
Previously, Shawni served as Vice President of Commercial Excellence, where she was responsible for optimizing the company’s commercial strategy and revenue operations. During her tenure, she helped build a more scalable commercial foundation by aligning strategy, operations, and analytics across revenue-generating functions to support sustainable growth.
Shawni brings more than 15 years of international experience across finance, strategy, and operations. She previously served as Chief Financial Officer of a high-growth global SaaS business, where she drove strong revenue growth, improved profitability, and supported international expansion. Earlier in her career, she advised organizations across five countries on corporate finance, M&A, restructuring, and operational transformation, working with both growth-stage companies and large enterprises.
A Chartered Accountant and CFA Charterholder, Shawni combines financial rigor with a strong strategic and operational mindset. She is known for translating strategy into execution, building scalable systems, and helping organizations operate with clarity and confidence.
Shawni is passionate about helping healthcare organizations overcome the limitations of siloed technologies and legacy systems, enabling them to unlock the full potential of enterprise imaging for clinicians, patients, and operational leaders alike.
Brian Wehrle
Chief Technology Officer
Brian Wehrle is Chief Technology Officer at Mach7 Technologies, where he leads the company’s global engineering and support organizations, as well as its overall technology strategy. In this role, Brian is responsible for advancing Mach7’s enterprise imaging platform, driving innovation across cloud, AI, and workflow orchestration, and ensuring the company delivers scalable, high-performance solutions with a strong, customer-first focus.
Brian brings more than 25 years of experience in healthcare technology, software engineering, and product development. Prior to joining Mach7, he served as Vice President of Software Engineering – Medical Imaging at Clario, where he led a global team of approximately 150 professionals across engineering and related functions and drove the expansion of AI and machine learning capabilities across the organization.
Earlier in his career, Brian held senior leadership roles at Asure Software and GE Healthcare, where he led large-scale engineering teams, modernized development practices, and delivered measurable improvements in product quality, operational efficiency, and customer satisfaction. His experience spans SaaS platforms, enterprise healthcare systems, and the application of emerging technologies to solve complex clinical and operational challenges.
Brian is passionate about building high-performing teams and fostering a culture of continuous improvement, collaboration, and accountability. He is known for combining technical depth with a pragmatic, customer-focused approach, ensuring that innovation is closely aligned with real-world customer needs and outcomes.
Todd Stallard
EVP, Commercial
Todd Stallard is Executive Vice President of Commercial at Mach7 Technologies, where he leads the company’s global revenue engine across enterprise sales, channel partnerships, and marketing. In this role, he is responsible for driving growth, strengthening strategic alliances, and advancing Mach7’s position as a leader in enterprise imaging.
Todd brings more than two decades of experience in product marketing, go-to-market strategy, and commercial leadership across SaaS, enterprise software, and emerging technologies. He has a proven track record of building and scaling high-performing teams, aligning sales and marketing organizations, and delivering measurable results in competitive, fast-evolving markets.
Prior to joining Mach7, Todd held leadership roles at companies including Microsoft, Sigma Connectivity, and ApoQlar, where he led global partnerships, developed go-to-market strategies, and expanded market presence across healthcare, IoT, and advanced visualization technologies. At Microsoft, he spent 17 years in senior sales and channel leadership roles, driving large-scale partner ecosystems and revenue growth initiatives.
Known for his customer-first mindset, Todd excels at translating complex technology into clear business value. He is passionate about helping healthcare organizations adopt innovative solutions that improve access to imaging, enhance clinical workflows, and ultimately support better patient outcomes.
Ravi Krishnan
Strategic Advisor to the CEO
Ravi is a founding partner of Mach7 Technologies and is an accomplished image management professional with two decades of experience with the technology intricacies that drive medical imaging.
Ravi is a DICOM and image workflow expert. He has been instrumental in the growth of industry-leading healthcare teams, including GE Healthcare and Agfa Healthcare
As one of the two co-founders of Mach7, Ravi has shaped its design philosophy and technical strategy. In his capacity as Strategic Advisor to the CEO, he works closely with the Chief Executive Officer, leveraging his wealth of experience, relationships, and expertise to help drive the future of Mach7.