Joe Allen, DSc, MPH, CIH
CEO / Founder
Dr. Joseph G. Allen, DSc, MPH, CIH is Associate Professor and Director of the Healthy Buildings Program at Harvard T.H. Chan School of Public Health and CEO and Founder of 9 Foundations, Inc. He is the coauthor of Healthy Buildings: How Indoor Spaces Can Make You Sick—or Keep You Well. Dr. Allen keynoted the White House’s first ever Indoor Air Quality Summit, is an advisor to The White House Clean Air and Buildings Challenge, and during the COVID-19 pandemic, served as Commissioner of The Lancet COVID-19 Commission and Chair of its Safe Work, Safe Schools, and Safe Travel Task Force. He has authored over 100 peer-reviewed scientific papers, and regularly contributes to the New York Times, Washington Post, Harvard Business Review and The Atlantic.
Uncompromising on the science.
Delivering excellence for our clients.
Marissa Rainbolt, MPH
Vice President / Health Scientist
The strategic guide of 9F, Marissa manages complex client projects and leads executive responsibilities.
Linnea Champ, MPH
Project Executive / Health Scientist
Applying the fundamentals of environmental health into practice, Linnea oversees research, content development, and program management for 9F clients.
Natalie Daranyi, MPH
Project Manager / Health Scientist
A systems thinker, Natalie crafts individualized project plans and leads strategic program implementation for 9F clients.
Maya Bliss, MPH
A healthy buildings practitioner, Maya leverages environmental health principles to support projects across the 9F Health Science Team.
Emily Jones, PhD
Director of Advanced Analytics
Dr. Jones leverages her expertise in the built environment, statistical analysis, advanced modeling techniques, and environmental sampling to manage the Advanced Analytics Team.
Katie Vilardi, PhD
An environmental engineer with expertise in data analysis, Dr. Vilardi utilizes statistical analysis and data visualizations to evaluate building health.
Morgan Davis, MPH
Health Data Analyst
As a member of the Advanced Analytics Team at 9F, Morgan translates information into impact.
Eli Miller, MPH, CIH
Senior Industrial Hygienist
A core member of the Occupational Health Team at 9F, Eli embodies the science of protecting the health and safety of people in the workplace.
Leslie Cadet, MD, MPH
Dr. Cadet is a medical consultant for 9F.
James McDevitt, PhD, CIH
Senior Health Scientist
An environmental health and industrial hygiene expert, Dr. McDevitt has expertise in the airborne transmission of respiratory viruses.
Katie Giasullo, MBA
Director of Operations / Executive Assistant to CEO
Adeptly managing two intersecting dimensions of 9 Foundations, Katie directs the day-to-day administration of 9F and shapes the strategic operations that propel the company forward.
Sarah Pappas, MLA
Director of Communications
Sarah leads 9F’s external and internal communications.
Resiliency | Policy
Professor Kayyem is an international leader in crisis management and homeland security.
Carl Howell, M.S.
Community | Residential | DEI
Carl Howell has over two decades of experience in the not-for-profit sector, dedicating his career to mitigating the impacts of poverty and the disparities across social determinants of health.
Maureen Ehrenberg, FRICS, CRE, LAI
Corporate Real Estate | ESG
Maureen Ehrenberg is CEO of Blue Skrye, Innovation in the Built Environment.