NOTABLE OMISSIONS: Wood, Jacobs, Farallon Consulting and Brown & Caldwell would have likely ranked high on The List but did not respond to the information request. ABOUT THE LIST: Information was obtained from firm representatives through questionnaires and could not be independently verified by the Portland Business Journal. In case of ties, companies are listed alphabetically. The Portland metro-area is defined as Clackamas, Multnomah and Washington counties in Oregon and Clark County, Washington.
The system, known as NeuFuel, differs from compressed natural gas because it can be used at a lower pressure than CNG.