Our People

Tim Purinton

Executive Director, Maryland/DC

Bethesda, MD

A man wearing a blue shirt stands above a river that runs through a deep gorge. The steep walls of the gorge form a backdrop behind him.

Tim Purinton Executive Director © Severn Smith / TNC

Areas of Expertise

ecological restoration, program implementation, fresh water protection, policy, fundraising

Media Contact

Matt Kane


Tim’s diversity of work—ranging from leading the implementation of our conservation vision and launching new initiatives to working closely with the chapter’s volunteer trustees—is for a single purpose: to address the most pressing environmental issues facing Maryland and the District of Columbia. 

The outcomes, if successful, will be cleaner water, healthier forests, and more resilient urban and coastal communities.

While the states' geography occupy a relatively small footprint, they are critical to the health of the mid-Atlantic region. Maryland’s western forests are a key wildlife corridor along the Appalachian Mountains. The intact watersheds on the Eastern Shore represent some of the best opportunities for ameliorating the impacts of sea level rise. And Washington, D.C., is on the forefront of creating new and replicable mechanisms for financing stormwater pollution treatment.

Before joining TNC in 2017, Tim served as the director of the Massachusetts Division of Ecological Restoration, part of the commonwealth’s Department of Fish and Game. It was a division he co-created in 2009 to help the state adapt to climate change, provide clean water, revitalize cities and protect biodiversity.

In his previous roles, Tim worked alongside TNC staff restoring ecosystems, influencing environmental policy and instituting climate change mitigation and adaptation strategies in Massachusetts as a state government official for over a decade. 

Tim holds a Master of Public Administration (MPA) degree from Harvard University and a Bachelor of Arts in Geography from McGill University.

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