Directories

Allthingseco :

- Directory for environmentally friendly, sustainable, fair trade, organic, natural, ethical and socially responsible products, services and information.
CleanEnergy :

- Worldwide directory of renewable energy related companies, products, news, and events. Free companies registration. Many with web pages.
EcoBusinessLinks - Green Directory :

- A renewable energy resource with +300 categories +11,000 green links.
The Green Pages :

- A comprehensive guide to the full spectrum of environmental products & services, featuring 7'000 leading suppliers from 148 countries since 1994.
Momentum Technologies LLC :

- A guide to more than 3000 renewable energy businesses and organizations. Businesses by product type, business type, and location.
Power Technology :

- A portal for the electrical power industry: international product and service catalogue, event calendar, associations directory, and related links.
Sustainable Energy Finance Directory :

- The Sustainable Energy Finance Directory is a free-of-charge online database of lenders and investors who actively provide finance to the sustainable energy (renewable energy and energy efficiency) sector worldwide
Tsinghua-BP Clean Energy Center Directory :

- Renewable Energy Information on Markets, Policy, Investment, and Future Pathways
The Utility Connection :

- Links to 4,000 electric, gas, water and wastewater utilities, utility associations, organizations, news, magazines, utility financial resources, and related state and federal regulatory and information sites.