The heart of the Bicycle Coalition of Maine is a hard-working, fun-loving, and dynamic staff that works collaboratively on education and advocacy efforts to improve walking and biking conditions across the state!

Jean Sideris (she/her)
Executive Director

Jean enjoys biking, hiking, skiing, and the many other ways to take advantage of Maine’s outdoor wonders.  A lifetime environmental and civil engagement advocate, she has spent her career in non-profits advocating for effective solutions to our most pressing issues and is eager to help shape a path to making biking and walking safer for all Mainers. Jean has an undergraduate degree from the University of Colorado, Boulder and a master’s in Journalism from Northeastern University. She grew up in Colorado, moved to Massachusetts after college, and eventually made her way up to Maine in 2016.

Erik daSilva (he/him)
Safety Education Manager

Erik found his love for two wheels at a young age and has never looked back—to bike is to live! He has been coordinating the Maine Bicycle & Pedestrian Safety Education Program since 2012 and looks forward to a Maine where every driver, walker, and bicyclist has mutual awareness and respect for one another. In addition to being an avid cyclist, Erik has a BS in Engineering, an MS in Education, is a League of American Bicyclists League Cycling Instructor, and an IMBA Level I-certified mountain bike instructor. He and his family live on the confluence of the Penobscot and Stillwater Rivers in Orono.

Will Elting (he/him)
Event Director

Will has always loved adventures outdoors, whether it’s hiking New Hampshire’s 4,000 footers, sailing the coast of the Baja peninsula, or cycling the length of the Erie Canal in his home state of New York. He has a BS in Parks, Recreation, and Ecotourism from Unity College, a graduate certificate in Nonprofit Management from USM, and more than a decade of experience working with recreation-focused nonprofits. He and his wife, Emily, live on Portland’s Back Cove, where they can frequently be seen riding their tandem bike.

Mariah Healy (she/her)
Mission Advancement Director

A native Mainer, Mariah has always loved being outside, whether hiking, biking, or sitting on the Eastern Prom with a book. Mariah has spent her career working for non-profits, primarily focused on education in Latin America. Mariah lived in Chile for six years before moving back to Maine in 2014. She joined the Bicycle Coalition Staff in 2019, and is excited to help make Maine a friendlier place for cyclists and pedestrians.

Chloe Hoffman (she/her)
Development Assistant & Office Manager

A passionate environmentalist and a lover of the outdoors, Chloe is excited to be part of the Bicycle Coalition of Maine. Chloe’s passion for the outdoors stems from growing up in Central New York, where she enjoyed exploring the many trails and natural wonders of her home state. Chloe graduated from SUNY Geneseo with a B.A. in History with particular attention to civil rights and environmental history, and she is eager to apply her career in non-profit organizing, advocacy, and fundraising to improve biking and walking in Maine!

Angela King (she/her)
Advocacy Manager

The Bicycle Coalition of Maine was the first organization Angela joined when she moved to Maine. She believes cycling for recreation and transportation leads to healthier people and communities. As a teacher, attorney, and community activist, Angela has been motivated by the confidence that supporting people empowers them to make positive changes in their lives and communities. She is thrilled to now work with people throughout the state on issues that make Maine’s roads safer for all.

Dan Knowles (he/him)
Accounting Manager

Dan grew up in Ellsworth, Maine, and spent much of his time in and around Acadia National Park, kayaking, hiking, and biking all that the region has to offer.  He is a Maine CPA who brings extensive experience with non-profits and accounting software to the Coalition.  He volunteers time as Treasurer of Stanwood Wildlife Sanctuary (Birdsacre) in Ellsworth, and enjoys helping his lovely wife raise three boys during the time he’s not sneaking off to play bass in a local band.

Emily Lozeau (she/her)
Event Coordinator

Originally from Massachusetts, Emily found her way to Portland in 2019 by way of Vermont, Wyoming, and Washington. A University of Vermont grad— she has dabbled in coordinating everything and everyone from volunteers and staff, to fish— which has helped her tremendously with her role at the Coalition. Emily’s fondest biking memory is being gifted a boatload of freshly smoked salmon from perfect strangers while cycling the Pacific Coast Highway for a month. She loves sandy beaches, teaching her cockatiel tricks, rummaging around flea markets, curling, and bowling. 

Matt Sulem (he/him)
Communications Manager
Editor-in-Chief, The Maine Cyclist

Matt was born and raised in Upstate New York, but moved to Maine after stops in South Carolina, Italy, China, and Brooklyn. He is an alumnus of the University of South Carolina—where he graduated with a B.A. in Journalism and Mass Communications in 2009—and has been professionally writing, editing, and passionately supporting the Oxford comma ever since. In his free time, Matt can be found biking the trails near his home in Westbrook, watching horror movies with his wife, jamming to rock and metal music, cheering for his beloved New York Yankees, or visiting any of the outstanding local breweries in the Portland area.

Jim Tassé (he/him)
Assistant Director

Jim joined the Coalition in 2010 as the education director, and became assistant director in August 2014. In that time, he has expanded the education program run in partnership with the MaineDOT and brought mountain biking back into the Coalition’s programming. He developed and launched the Community Spokes advocacy program as well as the Coalition’s innovative demonstration project campaign, “Imagine People Here.” He is a League of American Bicyclists League Cycling Instructor (LCI, #1308), an IMBA Level I-certified mountain bike instructor and trail designer, and a graduate of the Lift360 Community Leadership Intensive.

Julia von Ehr (she/her)
Education & Advocacy Coordinator

Hailing from Southwestern Connecticut, Julia moved to Maine for college and hasn’t left the state since! She is an alumna of Colby College—where she graduated with a B.A. in Environmental Policy and Cinemas Studies—and has been pursuing her passions for environmental justice and outdoor education ever since. Julia is an avid cyclist, hiker, rock climber, and ultimate frisbee player. When not outdoors, she can be found at the movie theater or in her apartment making copious amounts of gazpacho. Julia is thrilled to advance the BCM’s education and advocacy work, and improve biking and walking for all Mainers!