Unica Announces Marketing Success Award Finalists; Charles Schwab Corporation, HDFC Bank, and OCBC Bank Selected by Independent Panel of Industry Judges.

WALTHAM, Mass. -- Unica(R) Corporation (NASDAQ: UNCA), a global provider of Enterprise Marketing Management (EMM) solutions, today announced the finalists for its fifth annual Marketing Success Award. This year's prestigious panel of judges included Don Peppers and Martha Rogers, Ph.D., founding partners of Peppers & Rogers Group; Robert J. Galka of DePaul University; and Sheryl Kingstone, program manager for Customer-Centric Strategies for Yankee Group. After reviewing submissions, the judges selected Charles Schwab Corporation, HDFC Bank, and OCBC Bank for their marketing achievements and innovative use of Unica's Affinium(R) EMM suite. Each year, the Unica Marketing Success Awards honor companies that utilize EMM technology to address marketing challenges.

The three finalists will present their case study results at Unica's upcoming global customer conference - The Marketing Innovation Summit - to be held May 7-9, 2006 at the Sanibel Harbour Resort & Spa in Fort Myers, Florida. Attendees of the conference will vote to select the winner of the Unica Marketing Success Award.

Charles Schwab Corporation, HDFC Bank, and OCBC Bank were chosen from a group of nominees across industries including financial services, retail, and e-commerce. Highlights of finalists' marketing success include:

--Charles Schwab Corporation, a leading provider of financial services with 328 offices, 2.5 million client households, and $1.25 trillion in client assets, had a business goal to automate its database marketing operations in support of the firm's client communications and cross-selling activities. In achieving this goal, Charles Schwab's Database Marketing group successfully improved data quality and its campaign execution process using Affinium, resulting in decreased time to market and greater productivity.

--HDFC Bank, one of India's leading private sector banks, with a wide network of 535 branches across 228 cities and over 9 million customers, brought a new level of innovation and sophistication to its marketing campaigns to take advantage of the opportunities within India, the world's fourth largest economy. In fact, in select campaigns, HDFC Bank increased customer retention by 30 percent using Affinium.

--OCBC Bank, Singapore's longest established local bank with current assets of S$131 billion and a network of 310 branches and representative offices in 15 countries, uses Affinium as the "central communication hub" for coordinating, managing, mathematically optimizing and executing customer communications across all channels. Leveraging Affinium as part of a holistic marketing transformation, OCBC Bank adopted innovative event-based marketing and servicing techniques to improve the timing and relevance of sales and service communications. This transformation has seen a 40 percent increase in marketing velocity and campaign revenues more than doubled in the past three years.

The theme for this year's Unica Marketing Innovation Summit is "Making the Right Connections." The agenda includes informative business and technical track sessions, product updates and demos, and best-practice tips and techniques designed to help organizations market smarter and with more success.

"We are excited by the outstanding submissions we received, each of which tells a great success story about the power of technology and innovation to drive marketing success," said Yuchun Lee, co-founder and CEO of Unica Corporation. "Each of the finalists had different challenges and approaches but shared a common business goal - to use the power of marketing to make the right customer connections and drive business success." Lee continued, "With the results that Charles Schwab, HDFC Bank, and OCBC Bank have been able to achieve, they are setting the standard for marketing that delivers measurable business results. We applaud these companies' achievements, and look forward to partnering with them as they continue to raise the bar."

About Unica

Unica(R) Corporation is a leading global provider of EMM software designed to help businesses increase their revenues and improve the efficiency and measurability of their marketing operations. Unica focuses exclusively on the needs of marketing organizations and its Affinium(R) software addresses the principal functions of EMM including marketing and customer analytics, demand generation and marketing resource management. More than 300 companies in a wide range of industries use Affinium to manage the complexities and processes of marketing and to facilitate the operations of a customer-centric business. Unica's customers include ABN AMRO, Capital One, Choice Hotels, Comcast, Lands' End, Nordstrom, Reader's Digest, Scotiabank and Vodafone. Unica has offices across the United States, including its corporate headquarters in Waltham, Massachusetts, as well offices in the United Kingdom, France, Germany, Singapore and India. For more information, call 781-839-8000 or visit www.unica.com.

Note to editors: Copyright 2006 Unica Corporation. Unica and Affinium are registered trademarks of Unica Corporation. All other product names, service marks, and trademarks mentioned herein are trademarks of their respective owners.

Forward Looking Statements

The information provided in this press release above contains forward-looking statements that relate to future events and future financial performance of Unica. These forward-looking statements are based upon Unica's historical performance and its current plans, estimates and expectations and are not a representation that such plans, estimates, or expectations will be achieved. These forward-looking statements represent Unica's expectations as of the date of this press announcement. Subsequent events may cause these expectations to change, and Unica disclaims any obligation to update or revise the forward-looking statements in the future. Matters subject to forward-looking statements involve known and unknown risks and uncertainties, including the possibility that the market for enterprise software does not develop as anticipated; the volatility of our stock price due to the difficulty in predicting operating results and the long sales cycle for Unica's software; a failure by Unica to develop new software products and enhance existing products; failure to retain key staff; a failure by Unica to maintain historical maintenance renewal rates; and a failure to properly protect Unica's proprietary rights and intellectual property. These and other factors listed in the Annual Report on Form 10K for the fiscal year ended September 30, 2005 under "Risk Factors" could cause Unica's performance or achievements to be materially different from those expressed or implied by the forward-looking statements.