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.

In Posse

Member since 2014
In Posse provides consulting and engineering design services for high performance, deep green projects with a special expertise in net-zero energy. At In Posse, we focus exclusively on the energy and sustainable design sectors of the built environment for clients in a broad range of market sectors. Our services address all aspects of building performance including modeling and analysis of building systems, engineering high performance building systems, commissioning and occupant education and engagement. In Posse is a subsidiary of AKF Group and is headquartered in Philadelphia, PA with an office in New York, NY.
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