- Enermodal Engineering - Visit our web site to see examples of our energy and resource efficient buildings and to download design software. Denver, Colorado.
- Epaminondas K. Demos, Ph.D. - Environmental Consulting
- GeoSpatial Consultants - GeoSpatial Consultants provides environmental and geotechnical support cleanup efforts to prevent the contamination of government and private resources.
- Harding Lawson Associates - Full Service Environmental Services Firm
- John Reiss, Jr. & Associates, Inc. - Environmental consultant and remediation specialist