Revenue from clean-energy companies worldwide increased nearly 39% to $55.4 billion last year, according to a report by Clean Edge, a technology research firm in California. By 2016, the collective revenue of such companies could reach $226.5 billion.

Among the 65 companies that comprised the coalition were Allianz AG in Munich, Germany, the California Public Employees Retirement System in Sacramento, Domini Social Investments LLC in New York, F&C Asset Management PLC in London, Merrill Lynch & Co. Inc. in New York, The Calvert Group Ltd. in Bethesda, Md. and Walden Asset Management in Boston.

The coalition called for three specific steps from government : A market-based national policy that will achieve a 60% to 90% long-term decrease of greenhouse gas emissions; realignment of national incentives to stimulate new clean technologies; and clarification of company disclosure requirements from the SEC.