GBB Adds Four New Staff to its Multi-Disciplinary Team

For more information, contact:
Steve Simmons, GBB President / (703) 573-5800

McLean, VA (May 13, 2021) – Gershman, Brickner & Bratton, Inc. (GBB) is pleased to announce the addition of four members to its team of solid waste management professionals:

  • Eugenia Manwelyan – Senior Consultant
  • Theresa Evans – Senior Consultant
  • Danielle Moyer – Consultant I
  • Allyson Del Rosario – Business Manager

“We’re excited to add a group of new consultants and staff members to GBB’s dynamic and entrepreneurial team,” said Steve Simmons, GBB President. “While these four women come from different academic and professional backgrounds, together they have a common passion for sustainability and complement our growing team of professionals who focus on helping clients solve solid waste management issues by providing innovative, responsible, sustainable, and economical strategies and solutions for the benefit of communities and the environment.”

The pandemic served to solidify GBB’s perspective that sustainability planning in the solid waste industry is not only necessary, but financially viable. “I am especially happy to announce that with our recent new staff additions, we are greatly expanding our Sustainability Planning services team, building on our base of other experienced solid waste, recycling, and sustainability consultants at GBB”, said Jennifer Porter, GBB Vice President.

Eugenia Manwelyan – Senior Consultant:

Eugenia ManwelyanA well-versed planning practitioner with more than 10 years of experience in sustainability, resilience, community engagement, and training/education, Ms. Manwelyan joins the GBB team as a Senior Consultant. She most recently held the role of Senior Planner at Sullivan County, NY, and has experience as a consultant, non-profit executive director, and entrepreneur. Through her multidisciplinary background, she has worked with municipalities on resilience planning and sustainability compliance; is adept at working with diverse constituent groups including staff, boards, committees, volunteers, and external audiences; and has initiated and strengthened community and institutional partnerships.

Ms. Manwelyan earned a Master of Science degree in Urban Planning from Columbia University, NY and founded an environmental leadership training program with 500 alumni where she developed, implemented, and taught programs and curricula. Based in the Catskills, NY, Ms. Manwelyan can be reached at and (917) 710-7496.

Theresa Evans – Senior Consultant:

Theresa EvansAn enthusiastic sustainability professional with 8 years of public-sector experience for a Resource Recovery Agency, Ms. Evans joins GBB as a Senior Consultant. She comes to GBB from the Onondaga County Resource Recovery Agency in Central New York, where as a Recycling Specialist she worked on a wide range of projects and programs, including award-winning recycling and composting initiatives; collaboration with a waste-to-energy facility turning non-recyclable trash into electricity and recovering metal for recycling; trash and recycling drop-off sites; and numerous collection programs for recycling and proper disposal of hard-to-manage materials.

A former Board Member of the New York State Association for Reduction, Reuse and Recycling, Ms. Evans is based in Syracuse, NY and earned a Bachelor of Science degree in Environmental Studies from the State University of New York College of Environmental Science and Forestry. Ms. Evans can be reached at and (315) 717-7733.

Danielle Moyer – Consultant I:

Danielle MoyerA recent graduate of Binghamton University with a Master of Science degree in Sustainable Communities as well as a Bachelor of Science degree in Environmental Studies, Ms. Moyer joins GBB as a Consultant I. Since graduating from her Master’s degree program, Ms. Moyer was a Project Coordinator at Binghamton University’s ambitious Living Building project, which aims to design and construct a “Living Building Challenge Certified” environmentally friendly classroom and research facility. At GBB, Ms. Moyer leverages this experience as an integral team member working on GBB’s sustainability projects focused on achieving zero construction and demolition waste for a large retail company’s portfolio of real estate projects. Her knowledge of Living Building principles will additionally assist the GBB team with making recommendations early in the building design stage that contribute to future improvements and success in fostering a circular design and construction industry.

Based in Binghamton, NY, Ms. Moyer can be reached at and (315) 842-0842.

Allyson Del Rosario – Business Manager:

Allyson Del RosarioA CPA and CFE (Certified Fraud Examiner), Allyson Del Rosario joins GBB as its new Business Manager. She has been working in public and private accounting for twenty-eight years in the DC area. She has experience providing financial oversight for various small businesses including law firms, lobbying firms, real estate developers, software companies, retail businesses, non-profits, and trade associations. In the environmental space, Ms. Del Rosario has provided the controller function for a large recycling company in the DC area. Ms. Del Rosario has a B.S. degree in Business Management from Brigham Young University (BYU); she is a member of the Virginia Society of CPAs, the Association of CFEs and the AICPA.

Based out of GBB’s headquarters, in McLean, VA, Ms. Del Rosario can be reached at and (703) 573-5800.

About GBB

GBB is an award-winning national solid waste management consulting and planning firm founded in 1980 that helps public and private entities solve their most challenging waste issues. Our mission is to provide innovative, responsible, sustainable, and economical strategies and solutions for the benefit of communities and the environment. GBB specializes in solid waste collection, processing, recycling, recovery, sustainable materials management, and environmentally responsible disposal, and assists in planning, procuring, and implementing sound, cost-effective facilities and services.

GBB’s Vision: A world where discarded materials are used as resources rather than wasted.

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