By Scott Austin 
    Of DOW JONES VENTUREWIRE 
 

As EMC Corp. (EMC) and NetApp Inc. (NTAP) wage a bidding war for the rights to acquire storage-device maker Data Domain Inc. (DDUP), two venture capital firms stand to benefit mightily from the rising sale price.

On Monday, Data Domain's eight-member board - which consists of three venture capitalists - struck down EMC's offer to buy the company at $30 a share, or $1.8 billion, instead backing NetApp's $1.9 billion proposal.

Such an acquisition of Santa Clara, Calif.-based Data Domain would cap a strong run for Greylock Partners and New Enterprise Associates, highlighting how beneficial the IPO market can be for the venture capital industry.

Founded in 2001, Data Domain raised more than $40 million from investors including Greylock, NEA and Sutter Hill Ventures. In June 2007, the company's IPO wowed the market, with the share price rocketing 66% to $24.95 from $15. At the end of the day, Greylock's 26% stake was worth $338 million, NEA's 25% ownership was valued at $323 million, and Sutter Hill's stake was valued at $188 million.

That's a collective $849 million, more than 20 times the original investment.

That November, Data Domain held a secondary offering allowing investors to dump 3.2 million shares at $27 apiece. Greylock unloaded $27 million worth of stock, NEA sold $26 million in shares, and Sutter Hill sold $10 million total.

Over time, the firms dwindled down their stakes, distributing stock to partners of the respective funds or selling shares in the open market. While NEA and Greylock still own a piece, Sutter Hill distributed its remaining stake to limited partners last summer. Ronald Bernal, who was a partner from 2002 to 2006 at Sutter Hill and is now a partner at Sequel Venture Partners, is on Data Domain's board.

According to a filing, NEA now owns 13.8% of Data Domain, meaning a sale of the company to NetApp for $30 a share would reap the firm $260 million, up from $217 million in NetApp's original $25-a-share offer. Longtime NEA partner Scott Sandell serves as a Data Domain director.

Greylock, which is represented on the board by partner Aneel Bhusri, now owns just 3.9%, worth $74 million at the current offer price.

Overall, these firms will make out in a big way - quite a feat at a time when liquidity is hard to come by. IPOs remain the best way for venture firms to generate lofty investment returns, but since 2001 these offerings have made up only 13% of exits, compared with 56% in the 1990s, according to the National Venture Capital Association.

(Dow Jones VentureWire covers news about venture-capital investing and start-up companies)

-By Scott Austin, Dow Jones VentureWire; 212-416-2024; scott.austin@dowjones.com