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Miriam Posner

MWPC YP Board President

Miriam Posner serves as the Director of Energy & Environmental Policy at A Better City, a business membership association representing the business and institutional community of Greater Boston.

She leads the organization’s energy and environmental policy efforts. She developed strategic and impactful legislative and research agendas, focused on mitigation of the progression of and adaption to the effects of climate change, as well as the promotion of energy reliability. Miriam collaborates with state and local officials, public-sector staff, and other stakeholders to execute upon those identified priorities.

Further, she manages A Better City’s collaborative renewable power procurement work, which recently resulted in the landmark 60MW solar purchase jointly between MIT, the Boston Medical Center, and The Friends of Post Office Square.

For two years, while in graduate school at the University of Pennsylvania, Miriam worked at the Kleinman Center for Energy Policy. Additionally, she spent a summer interning in the White House Office of Science and Technology Policy’s Energy and Environment division, where she helped implement the Obama Administration’s policies and initiatives. Prior to that, Miriam spent four years supporting the U.S. Department of Energy, working on resilience, infrastructure security, and energy restoration activities, including working as an emergency responder during Hurricane Sandy.

Caitlyn Clarke

MWPC YP Board Vice President

Caitlyn Aerial Clarke works in the Risk Assurance practice at PricewaterhouseCoopers LLC (“PwC”) focusing on delivering internal audit, compliance, and risk management solutions for clients in various sectors (e.g. financial services, pharmaceuticals and life sciences, technology, etc.).

Prior to PwC, Caitlyn spent 7 years in financial services. Caitlyn worked as an Operational Risk Manager with the Enterprise Risk Management team at State Street Global Advisors, where she focused on executing risk consulting projects to help mitigate operational risk and solve business problems. Prior to that, she worked in Internal Audit and was in the Professional Development Program, a high-potential, leadership development and rotational program, at State Street Global Markets. In those roles, Caitlyn analyzed financial statements and consulted on business processes, led analysis and research efforts on prospective clients and competitors, implemented training, tracking, sales pipelines, and marketing materials for various products, as well as managed workstreams which led to successfully integrating a company that had been recently acquired.

Caitlyn additionally has worked for the law firm of Leefe, Gibbs, Sullivan, Dupre, and Aldous, Scholastic Publishing’s International Rights Department, the Children’s Defense Fund, and the LEAD Business Institute at Duke.

As far as community involvement, Caitlyn was a 2017 Emerge Massachusetts Fellow, is a member of the MWPC Political Action Committee, the Victim Rights Law Center’s Shining Star Gala Committee, the Fuqua Minority Advisory Board, the Duke Boston Regional Board, the Philanthropy Connection, a women's collective giving network, and is a proud member of Alpha Kappa Alpha Sorority Incorporated. Caitlyn also speaks four languages and has been volunteering with the Louisiana Hugh O’Brian Youth Leadership seminar for 14 years as a Junior Counselor, Facilitator, and speaker.

Chelsea Aquino

MWPC YP Board Treasurer

Chelsea Aquino serves as the Manager of Government Relations and Public Policy for Mass Mentoring Partnership, where she develops and manages MMP’s policy efforts and advocacy campaigns, maintains relationships with state and local agencies, and constructs approaches for driving public financial resources to the mentoring field.


Prior to her work at MMP, Chelsea served as the Associate Director for the Massachusetts Women’s Political Caucus and was the former Finance Director for Boston City Councilor At-Large Ayanna Pressley’s ticket-topping 2011 and 2013 re-elections. A Cum Laude graduate of UMass Amherst with a BA in Political Science, Chelsea also received a Graduate Certificate from the Center for Women in Politics and Public Policy program at UMass Boston. Chelsea is also involved with Big Sister’s Big for a Day program and the New Frontier Network at the John F. Kennedy Presidential Library. Chelsea is a New Jersey transplant and lives in East Boston with her husband Eric and their rescue puppy Stella. 

Kelleigh Welch

MWPC YP Board Secretary

Kelleigh Welch is a skilled editor, reporter and social media manager, bringing nearly ten years of experience in journalism and media relations. She is currently an account executive at Melwood Global, a communications firm that specializes in media relations, crisis communications, and social media. She works with a range of clients in the Boston area in the fields of criminal justice reform, education policy, higher education, business. 

Kelleigh is also a dedicated preservationist—both historical and environmental—and has worked with organizations including Open House New York, the Appalachian Mountain Club, Walks of New York and The Metropolitan Museum of Art to help achieve their missions. In her spare time, Kelleigh enjoys hiking—both on the trails and in the city—and hopes to hike the entire Appalachian Trail in pieces. She loves to travel, especially to countries that are known for its food, and tries to replicate the dishes in her own kitchen. She’s also a great resource when it comes to useless (mainly pop culture-related) knowledge, and can (confidently) quote every line from her favorite show, ‘Parks and Recreation.’ 

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