Atrenta Secures $16M in Series D Funding

SAN JOSE, Calif.--October 19, 2006 -- Atrenta, the leading provider of broad-based design analysis solutions with the industry standard SpyGlass technology, has successfully secured $16 million in new equity financing. Investor Growth Capital led the financing in this Series D round. Samsung Ventures and Hercules Technology Growth Capital, Inc. joined existing investors, Venrock Associates, TL Ventures, Smart Technology Ventures, Investcorp Technology Ventures and Finaventures, in the financing round. In conjunction with the financing, Jose Suarez of Investor Growth Capital has joined Atrentas Board, and Bill Byun of Samsung Ventures joins as an observer on the Board. The funds will be used to fuel the company's continued growth by expanding Atrenta's product offerings in chip design software and its worldwide presence for sales and support.

"EDA is going through an interesting transformation with the migration to higher levels of abstraction, presenting exciting opportunities for visionary technology companies like Atrenta," said Jose Suarez of Investor Growth Capital. "Atrenta is uniquely positioned to lead in the marketplace with its new class of automation tools for early design analysis and implementation methodologies. Atrenta has achieved significant traction in the EDA software space, evidenced by its expanding roster of customers and partners. The company's value proposition of early design closure addresses concerns that are critical to its customers' success, and it fits perfectly with our present portfolio of innovative technology companies delivering elegant solutions to recognized bottlenecks in semiconductor development. We are committed to contributing to Atrenta's long-term success and are pleased to lead in this round of funding."

"Samsung is excited to assist Atrenta in fulfilling its vision of helping chip designers with early design closure," said Bill Byun of Samsung Ventures. "Atrenta is the first EDA company we have invested in, and we selected them based on their product leadership and outstanding customer traction that includes all the top semiconductor companies worldwide."

"Our growth and continued success is the result of the recognition we have received with our novel offering in EDA," said Dr. Ajoy Bose, chairman, president and CEO of Atrenta Inc. "When we founded Atrenta, we knew that the key to unlocking design productivity in the near future rested in early design closure tools. We pioneered RTL Predictive Analysis with SpyGlass and rapidly evolved the tool, transforming design development into a continuous realization of design closure at the RTL phase. Our success with over 100 companies, including all of the top semiconductor companies in the world, demonstrates that we are offering a value that the semiconductor industry appreciates. We will use the additional capital to extend our solution and expand our markets to take the company to the next level."

About Atrenta

Atrenta is the leading provider of broad-based design analysis solutions based on industry standard SpyGlass technology. Atrenta's design analysis tools deliver early design closure by eliminating downstream design problems and iterative discoveries. This leads to improved predictability and efficiency in SoC design phases that span RTL design, IP reuse, Verification, Constraints Management, Testability, Timing improvement, and Power reduction leading to logical and physical closure at RTL. Atrenta has over 100 customers including the world's top 10 semiconductor companies. Think Early Design Closure, Think Atrenta! For more info, please visit www.atrenta.com .

About Investor Growth Capital

Investor Growth Capital (IGC) is the wholly-owned venture capital arm of Investor AB, a publicly traded industrial holding company, listed on the Stockholm Exchange with a market capitalization of $20 billion. IGC was formed in the mid-1990s to invest in high quality, growth oriented companies, primarily in the IT and Healthcare industries. Today its 30 investment professionals are developing a portfolio whose value exceeds $850 million from offices located in New York, Menlo Park, Stockholm, Hong Kong, Tokyo and Beijing. Investor AB is a leading shareholder in a number of European multinational corporations, including Astra Zeneca, Ericsson, Atlas Copco and SEB. For almost a century Investor AB's business philosophy has been to build best-in-class companies in sectors where the group has strong knowledge and a networking advantage. IGC shares that approach and benefits from Investor AB's extensive global network of companies and senior managers.

For more information, go to www.investorgrowthcapital.com

About Samsung Venture Investment Corporation

Samsung Venture Investment Corporation manages investment and investment-related activities for the Samsung Group. The investment mandate for Samsung Venture Investment Corporation tracks closely to the strategic priorities of Samsung Electronics and other Group companies core operating divisions, and encompasses investments in semiconductors, displays, telecommunications, and consumer electronics.

About Hercules Technology Growth Capital, Inc.

Founded in December 2003, Hercules Technology Growth Capital, Inc. is a NASDAQ traded specialty finance company providing debt and equity growth capital to technology-related companies at all stages of development. The Company primarily finances privately-held companies backed by leading venture capital and private equity firms and also may finance certain publicly-traded companies. Hercules strategy is to evaluate and invest in a broad range of ventures active in technology and life science industries and to offer a full suite of growth capital products up and down the capital structure to prospective clients ranging from early-stage growth to expansion stage companies. The Company's investments are originated through its principal office located in Silicon Valley, as well as additional offices in the Boston, Boulder and Chicago areas. Providing capital to publicly-traded or privately-held companies backed by leading venture capital and private equity firms involves a high degree of credit risk and may result in potential losses of capital.

For more information, please visit www.herculestech.com, or www.htgc.com . Companies interested in learning more about financing opportunities should contact info@htgc.com, or call 650.289.3060.