Green technology companies, specifically those focusing on clean energy, are poised to become IPO darlings by the end of the decade. The Wall Street Journal reports that roughly $10 billion was invested in clean energy last year. Kevin Keyes, head of the technology equity capital markets group at Merrill Lynch & Co., anticipates those investments evolving into green IPOs.

Currently there is little action in the market, but Jeffrey Lipton, head of clean technology investment banking at Jeffries Cos., believes there will be a considerable amount of activity during the second half of the year.

The influx of green investment has many believing the sector is in the midst of a bubble. According to this Boston.com article, Lux Research counted 930 energy startups in its Cleantech Report. The flood of companies will ultimately lead to some misses, but the companies that are on the mark stand to benefit immensely.