Featured Members: Featured Members are top-level SBN members who are deeply invested in a building a just, green, and thriving, local economy.

Locally-Owned: Privately-held businesses headquartered in the Greater Philadelphia Area (a requirement for SBN membership)

B Corp: Certified B Corporations are businesses voluntarily meeting higher standards of transparency, accountability, and performance, while offering a positive vision of a better way to do business. Learn more.

The Green Stormwater Infrastructure (GSI) Partners is a priority initiative of SBN working to advance the local GSI industry and innovation. Learn more.

Marianne Leone

Member since 2016
Marianne Leone has successfully held her own Limited Liability Corporation for 15 years serving the sustainability industry as a professional event planner and a consultant that specializes in organizational excellence for nonprofits. With over 50 clients and 300 events in her experience wheelhouse Marianne continues to strive to make the world a better place one project, one event, one team at a time. Past and present clients include the U S Green Building Council. Mid-Atlantic Solar Energy Industries Association and Licensed Site Remediation Professionals Association. Marianne also holds a second career reflecting her passion as a professional photographer, focusing on species in danger and our national parks. Check out her photography at
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