Violin Memory, which includes Toshiba and Juniper Networks among its backers, reportedly expects to appoint a banker by September.

Google Ventures is reportedly being given more support by its parent company, through staff as well as firepower, as one of it portfolio companies gears up for a float.

LivingSocial, a US-based discount coupon company backed by online retailer Amazon in December, has reportedly appointed banks for a flotation with a $10bn to $15bn valuation.

ASF Group and BASF are alongside One Equity and Kleiner Perkins looking to cash in on the cleantech company's flotation.

The conflicting signals for corporate venturing-backed flotations came among wider concerns about public equity capital markets.

Intel CApital-backed BCD listed 4.3 million American Depositary Shares (ADS) at $10.50 before expenses, with shareholders selling a further 1.6 million ADSs, according to the company's prospectus.

In a regulatory filing this month, Intel said it corporate venturing unit as well as the Middlefield Ventures portfolio held stakes in listed portfolio companies worth an aggregate $192.1m at the end of June.

The Chevron-backed data filing firm is hoping it will be second time lucky, after it pulled a previous IPO during the financial crash in 2008.

Softbank and Google are set to be among the big paper winners in an initial public offering of the social gaming business reportedly valuing the company at $15bn to $20bn.

Liposcience, previously backed by General Electric among others, is hoping for better results this time around, after an abortive float almost 10 years ago.