SII specializes in project development and engineering related services for utilities, municipalities, and large industrial energy consumers. Our primary focus is on combined heat and power (CHP), natural gas-fired, and renewable-based technologies.

Geophysics, Natural Resource Management, NEPA, Water Resources, Wetlands, ADCP, Geomorphology, GIS, T&E, Limnology, Modeling, Geophysics for Archeology, Marine, River, & Reservoir Studies, Dam Seepage, Embankment Seepage, HEC-2, Environmental Remediation

Software Publishers, Computer Training, Professional and Management Development Training, Flight Training, Apprenticeship Training

Administration of Air and Water Resource and Solid Waste Management Programs

Architectural Services, Engineering Services, Testing Laboratories, Environmental Consulting Services, Facilities Support Services

Nursery and Tree Production, Forest Nurseries and Gathering of Forest Products, Drilling Oil and Gas Wells, Support Activities for Oil and Gas Operations, Support Activities for Coal Mining

Nursery and Tree Production, Forest Nurseries and Gathering of Forest Products, Support Activities for Oil and Gas Operations, Support Activities for Coal Mining, Support Activities for Metal Mining

Water Supply and Irrigation Systems, Sewage Treatment Facilities, Water and Sewer Line and Related Structures Construction, Power and Communication Line and Related Structures Construction, Land Subdivision

Administrative Management and General Management Consulting Services, Administration of Air and Water Resource and Solid Waste Management Programs