Alternative Fuel Systems Inc. (AFS)
Emission reduction technologies including natural gas and natural gas/diesel systems and components plus catalytic converter technologies.
Green Car Group
Offers marketing and communications services and independent research through its nonprofit institute.
Green Star Products
A holding company with various equity positions in energy and transportation technology companies.
Natural Gas Vehicle Institute.
Provides natural gas vehicle education, training, consulting, and technical assistance to vehicle manufacturers, fuel retailers, utilities, NGV users, consultants, and others.
Design and development of electric and hybrid-electric vehicle propulsion systems and electrical components.