NEW YORK (CNNMoney.com) -- After what has been a fairly lackluster summer for companies going public, the market is attempting to gain steam.

Indian outsourcing firm WNS Holdings may help heat up activity. The firm is set to sell 10.4 million American Depositary Shares at a forecast price of $18 to $20 a share. The Bombay-based firm expects to trade on the New York Stock Exchange under the symbol "WNS." (Full story)

Here's a look at the other firms on tap this week:

Chart Industries makes equipment used in the production and storage of hydrocarbon gases. The company, based in Garfield Heights, Ohio, expects to sell 12.5 million shares at about $19 to $21 a share. It plans to trade on the Nasdaq under the ticker "GTLS."

CHG Healthcare Services provides temporary physician staffing services. The Salt Lake City, Utah-based firm plans to sell 4.9 million shares at an estimated range of $15 to $17 a share. The company aims to list on the Nasdaq under the symbol "CHGH."

Real estate investment trust Crystal River Capital plans to sell 9.1 million shares at an estimated price range of $26 to $29 a share. The company, based in New York, NY, plans to list on the New York Stock Exchange under the ticker "CRZ."

Natural gas producer and explorer GeoMet expects to sell 6 million shares at an estimated price of $13 to $15 a share. The Houston, Texas-based company intends to trade under the symbol "GMET" on the Nasdaq.

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