Executive Committee

Sean McCone, PE, CCM

Sean McCone is an Executive Vice President and Board Member at Johnson, Mirmiran & Thompson, Inc. (JMT), an employee-owned firm, that provides a full range of multi-disciplined engineering, architectural, and…

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James P. Hoffman, PE, LEED AP O+M, CEM

Jim Hoffman is President of Summer Consultants, Inc., a small business providing mechanical, electrical, plumbing, and fire protection engineering and commissioning services for designing government, institutional, and historic facility projects.…

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Gary W. Raba, P.E., D.Eng

Gary W. Raba. leads organic and inorganic growth for Raba Kistner, Inc. (RK). Before taking this responsibility, Gary served as CEO of Raba Kistner, Inc. He has also served as…

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Elizabeth Stolfus, P.E., FACEC

Elizabeth Stolfus is President and founder of Stolfus & Associates, Inc., a Colorado transportation engineering, and planning consulting firm. She has been active at state and national levels of ACEC…

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Dan Meckes, P.E.

Daniel Meckes is the CEO of Crawford, Murphy & Tilly, Inc. (CMT), a full-service professional services firm with 25 offices in 9 states. Dan is a member of the ACEC…

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Derek Clyburn, P.E.

Derek L. Clyburn currently serves as the President of ECS Southeast, LLP. Derek is a member of the Board of Directors for the ECS Group of Companies and has been…

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Robin Greenleaf Portrait

Robin Greenleaf

Firm: Architectural Engineers, now IMEG Location: Boston, Massachusetts Ms. Greenleaf is Executive Vice President of IMEG Corp. She is located in the Boston office. She has served as President of…

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Linda Bauer Darr Portrait

Linda Bauer Darr

Organization: ACEC Location: Washington, DC Linda is the President & CEO of ACEC and joined the Council in August 2018. She is a veteran trade association CEO, having begun her…

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John A. Rathke, PE, SE, FACEC

Firm: Mead & Hunt Location: Middleton, Wisconsin Mr. Rathke is a Vice President and Principal at Mead & Hunt, Inc. in Wisconsin. He is active on ACEC’s Transportation Committee and…

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Janice Headshot

Janice Marsters, PhD, P.E., FACEC

Firm: Hayley & Aldrich, Inc. Location: Honolulu, Hawai’i Dr. Marsters is a Senior Principal at Haley & Aldrich, Inc. and manages the firm’s Hawai‘i/Pacific operations. Dr. Marsters is an ACEC…

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