Meet Our Leadership Team


Sachin Aggarwal, CEO

As the Chief Executive Officer of Think Research, Sachin Aggarwal understands that health care systems around the world are on the brink of profound, necessary change. Scientific knowledge, clinical best practices and medical data are increasing at an exponential rate, contributing to a global knowledge crisis – with implications for clinicians, patients, governments and countries at large.

In the midst of this growing problem, Sachin sees data as the solution – and the key to system transformation. This principle drives the mission of Think Research: to organize the world’s health knowledge so that everyone gets the best care.

As part of this vision, Sachin led Think Research in 2010 through a strategic transition to become a cloud-based service provider. The move has positioned Think Research as a leader in the global health data economy, allowing the company to standardize care at scale, aggregate knowledge across health systems and improve the quality of care for patients.

When he’s not advocating for disruptive change in health care, Sachin is actively engaged in his community. A recipient of Canada’s Top 40 Under 40 Award in 2017, Sachin also sits on the Board of the Council of Canadian Innovators. He previously served as the Deputy Chief of Staff for the Office of the Leader of the Opposition prior to joining Think Research. He’s currently a Senior Fellow in Public Policy at the Munk School of Global Affairs and Public Policy, and has served as an advisor to numerous start-up and scale-up companies in the innovation sector. He was called to the Bar in Ontario and New York, and holds an MBA from the Rotman School of Management.


Chris O’Connor, President and Founder

Dr. Chris O’Connor is the President and Founder of Think Research and a practicing critical care physician in the Intensive Care Unit at Trillium Health Partners. Chris began his medical career at Trillium Health Partners in 2000 and served as their Director of Medical Informatics. In 2006, he received the Ontario Innovation Award for Improving Quality & Patient Safety after successfully launching the first ever hospital-wide order set project. He also won the Emerging Leader in Canadian Informatics Award in 2007 for innovation in the health care field. Since founding Think Research in 2006, he has been actively involved in the company’s clinical development process.


Mark Sakamoto, Executive Vice President

Mark is the Executive Vice President for Think Research. A lawyer by training, Mark has enjoyed a rich and varied career, having worked at a national law firm and served as a senior political advisor to a national party leader. Prior to joining our Executive Team, Mark worked as an Executive Manager for the Canadian Broadcast Corporation where he led negotiations for hundreds of content deals. He is an entrepreneur and investor in digital health and digital media and has been instrumental in driving the growth of Think Research. In 2014, he authored his first book, Forgiveness: A Gift from My Grandparents, which went on to be a #1 national best seller.

Joanna Carroll

Joanna Carroll, Chief Operating Officer

Joanna is Think Research’s Chief Operating Officer. Over the past five years, Joanna has been instrumental in overseeing the hiring during Think Research’s rapid expansion as it has grown from a small start-up to a team of over 130 full- and part-time staff. Joanna also serves as Think Research’s Chief Privacy Officer and as a legal advisor to our Executive Team. She holds a law degree from the University of Calgary and has over 15 years experience practicing law as an employment lawyer and commercial litigator. Joanna sits on the Board of Directors for two non-profit agencies in downtown Toronto and Chairs the Human Resources Committee of one.

Saurabh Mukhi

Saurabh Mukhi, Chief Technology Officer

With a passion for product and design, Saurabh has adapted agile principles to the field of healthcare technology and leads a multidisciplinary IT team of more than 50 engineers, software developers, UX designers, and security specialists. His efforts have been central to the development of the Think Research’s suite of products which connect clinicians and patients at every stage of the patient journey. Prior to joining Think Research, Saurabh worked as a Management Consultant at KPMG. Saurabh has a Bachelor in Mathematics and Computer Science from the University of Waterloo, and an MBA from the Rotman School of Management.

Kirsten Lewis

Kirsten Lewis, Vice President, Clinical Research and Development

Kirsten is the Vice President on Think Research’s Clinical Research and Development team and has been a registered nurse for nearly 30 years. Since joining Think Research, she has worked extensively on building our Order Set library in collaboration with leading health care associations. Prior to joining Think Research, she worked as a Clinical Manager at the University Health Network. While at Toronto General Hospital, Kirsten focused on improving patient flows, enhancing the quality of care delivered to patients and maximizing capacity. In 2012, she coordinated a province-wide roll out of the Ontario Renal Plan where she provided expert clinical consultation.