Board Memberships

HR Advisory Board, Marymount University (2014-present)

Advanced Academic Programs Advisory Council, Fairfax County Public Schools (2012-present)

National Advisory Council, Andre Sobel River of Life Foundation (2009-present)

President & Vice President, Parent Teacher Organization/ Association Boards (2015-2016; 2014-2015; 2008-2009)

National Advisory Board, Leadership America (1994-1996)

Representative, National Petroleum Industry Advisory Council for North American Free Trade Agreement (1991)

Media Mentions
Women Grow Business
Business Insanity Radio
Annandale Blog

M. Beacon Enterprises, LLC

who we are

Tara Rethore

Tara Rethore delivers results by matching the “people side” with business strategy and effective processes – typically executing across geographic and organizational boundaries. She is adept at breaking down complex concepts and situations into a few, critical themes that can be addressed and managed to create results. Four key capabilities underpin her success in working with clients:

  • solid strategic thinking
  • deep knowledge about how organizations work
  • proven execution of strategies, processes, and project
  • ability to identify, then use the unique strengths of individuals and teams to accomplish specific objectives and actively manage interdependencies

Through her roles as both leader and consultant, Ms. Rethore understands how functional roles must integrate to gain sustainable advantage. She’s worked across multiple industries and brings that broad perspective to all of her work. Having a solid foundation in leadership and team dynamics, Ms. Rethore is effective in managing complex teams at all levels of an organization – from shop floor to senior leadership.

She has successfully applied these concepts in both for-profit and mission-driven contexts. Ms. Rethore has worked with a wide range of organizations globally and has held executive leadership roles (in both line and staff functions) with Lafarge North America and Arthur D. Little.

Ms. Rethore is a frequent speaker at industry and professional conferences and a trusted content provider to publications on a variety of topics.

Holding dual US and Irish citizenship (and passports), Ms. Rethore is authorized to work in the US and the European Union. She is conversant in Spanish and fundamental French. Ms. Rethore earned an MBA from the University of Chicago (1990) and an A.B. cum laude from Mount Holyoke College (1986).

Glen Van Zandt
Glen Van Zandt

Glen Van Zandt brings over 20 years of experience as an internal consulting practitioner and leader in both government and private sector roles. His work focuses on building and implementing effective human capital strategies to support sustainable business practices and triple bottom-line performance.

Mr. Van Zandt is experienced in organizational assessment, performance measurement and management, change management and process consultation, and partnership development to assist clients in building internal talent to deliver results. His passion lies at the nexus of business strategy and corporate sustainability — creating sustainable value and competitive advantage through triple bottom-line thinking and practice.

Mr. Van Zandt earned a Master's Degree from Yale's School of Forestry and Environmental Studies, and both an M.S. in Human Resources Management and a B.B.A. from Texas A&M University. He is a member of the Society of American Foresters and the Sustainability Practice Network.