EHI specializes in; EIS & EA writing, socioeconomic and demographic analysis, land use & neighborhood planning. Community and environmental justice statements, regulatory energy and pipeline safety. Public involvement/participation. SBA 8a certified.

Anti-bullying training, keynotes, presentations and workshops and provides curriculum materials and resources. Presentations and workshops for parents students and school personnel, as well as a Trainer-the-Trainers Workshop.

Other Support Activities for Air Transportation, All Other Professional, Scientific, and Technical Services, Regulation and Administration of Transportation Program, Regulation and Administration of Communications, Electric, Gas, and Other Utilities

Executive Offices, Executive and Legislative Offices, Combined, Administration of Urban Planning and Community and Rural Development, Regulation and Administration of Transportation Program, Regulation and Administration of Communications, Electric, Gas, and Other Utilities