Clientele
Optima has successfully worked with the following companies and organizations:
- Alaska Department of Transportation
- Arizona Department of Transportation
- British Gas Corporation
- California Department of Transportation
- Central Hudson Gas and Electric Corporation
- City of Beijing
- City of Detroit
- City San Francisco
- Con Edison of New York
- Dominion (Ohio)
- Dominion (Pennsylvania)
- Federal Highway Administration
- The Gas Research Institute
- The Gas Technology Institute
- Kansas Department of Transportation
- KeySpan Energy Corporation
- Long Island Lighting Company
- Ministry of Communications, Saudi Arabia
- Ministry of Public Works, Portugal
- Minnesota Department of Transportation
- New Jersey Natural Gas
- Niagara Mohawk Corporation
- North Carolina Department of Transportation
- Oklahoma Natural Gas
- ONEOK Corporation
- Pacific Gas and Electric Corporation
- Public Service Electrical and Gas
- Road Directorate of Portugal
- Rochester Gas and Electric Corporation
- San Diego Gas and Electric
- San Francisco International Airport
- Transportation Research Board of the National Academies
- U.S. Department of Energy
- Urban Institute
- Vermont Department of Transportation
- Washington Department of Transportation
- The World Bank