Our Team

Embold Research is a team of data scientists and communications professionals with deep experience helping leaders translate data into actionable insights.

Embold Research is the nonpartisan, non-political unit of Change Research.

Co-Founder and CEO

Mike Greenfield
VP of Strategic Growth

Robin Pressman
Principal Researcher

Andrea Everett
Analyst

Jessica Mason
National Director

Kris Balderston
Head of Growth

Matt Merriman-Preston 
Senior Analyst

Trenton Marlar

Co-Founder and CEO

Mike Greenfield

Mike is the co-founder of Change Research, and has been at the forefront of data science for the last quarter century. After graduating from Stanford with a degree in Mathematical and Computational Science, Mike was an early fraud analytics scientist at PayPal, building the first ever corporate implementation of random forests. After PayPal, Mike led LinkedIn’s early data science team, helping the company grow from 250,000 to 10,000,000 users. Mike also founded Circle of Moms (sold to PopSugar) and longtime sports analytics leader Team Rankings. Mike co-founded Change Research in 2017 to make public opinion polling fast, accurate, and affordable. Mike lives in Palo Alto, California with his wife and two daughters.

VP of Strategic Growth

Robin Pressman

Robin brings expertise in advocacy with a keen understanding of polling and data driven programs to Embold Research. Serving clients at Pressman Consulting, she provided a wide range of data driven strategies and project management. Prior to starting her firm, she served as Senior Associate at GQR, providing message development, targeting and polling expertise to numerous candidates and non-profit clients. She also served as Field Director for the National Environmental Trust and worked with organizations such as Brady Campaign to Prevent Gun Violence and NARAL Pro-Choice America. Robin has worked on and managed electoral campaigns in New Jersey, Maryland, and Oregon. After more than two decades in DC, Robin, her husband and son relocated to Alameda, California. They love living on this small island in San Francisco Bay.

Principal Researcher

Andrea Everett

Andrea leads the survey research team at Embold. Previously she has served as Senior Director of Survey Research and Data Science at Climate Nexus, led survey and social science research in the tech industry, and worked in academia as an assistant professor of international affairs. She got her start in opinion research in graduate school, where she studied how public attitudes and advocacy affect foreign policy in the humanitarian space. She holds a PhD in politics from Princeton University and a BA in political science from Stanford, and is the author of Humanitarian Hypocrisy (Cornell University Press, 2017). Andrea grew up on the beautiful Olympic Peninsula in Washington and currently lives in Redwood City, CA.

Analyst

Jessica Mason

Jessica joined Embold Research in 2022. She is passionate about utilizing data to craft meaningful stories and messages with impact. Before joining Embold, Jessica worked at Hart Research Associates, managing both quantitative and qualitative projects with the aim of providing actionable insights and effective communications strategies for a variety of corporate, political, and non-profit clients. She also created and managed messaging campaigns for advocacy groups and marketing firms. She graduated Phi Beta Kappa from Wesleyan University with a B.A. in The College of Letters, an interdisciplinary program for the study of literature, history, and philosophy from antiquity to the present. She is based in Washington, D.C., and enjoys hiking in her spare time.

National Director

Kris Balderston

Kris has been in public service at the federal and state level for over three decades, serving governors and in senior positions in the US Senate, State Department, and the White House. He also worked in the private sector as the President of Global Public Affairs for Fleishman Hillard and created Balderston Strategic Partnerships to provide counsel to universities, corporations, and nonprofits.

Head of Growth

Matt Merriman-Preston 

Dr. Matt Merriman-Preston brings expertise in strategic problem-solving, working with people, and business development to Embold Research. Prior to this role, he owned and operated Ampersand Consulting – a firm that provided a wide range of political services to candidates, elected officials, and organizations. Matt has worked with candidates in every branch of government from local to statewide levels, providing key support in dozens of victories. Matt has participated as an invited speaker-trainer to support women and young people running for office for many different organizations. He was elected to chair the City of Pittsburgh’s reapportionment advisory committee following the decennial census of 2011. Matt volunteers as a board member of Western Pennsylvania’s Planned Parenthood Action Council. Matt lives in Pittsburgh, Pennsylvania with his wife and children. 

 

Senior Analyst

Trenton Marlar

Trenton brings over five years of quantitative research experience to Embold Research. As a trained political scientist, he has leveraged survey data to explain the political attitudes and behaviors of individuals living in countries around the world. His strengths include survey questionnaire design, data visualization, and statistical analysis. Trenton recently earned a Ph.D. in Political Science from the University of Colorado Boulder where he researched the effects of economic inequality on citizens’ evaluations of democracy. He also holds a master’s degree from the London School of Economics and a bachelor’s degree from Oregon State University. Trenton currently resides in Colorado.

Embold Research is the nonpartisan unit of Change Research. Our methodology and polling have been featured in:

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