Visual Numerics® Partners with Leading
Indian Distributor Sonata Information Technology Ltd.

Sonata to Sell and Support IMSL™ and PV-WAVE® Data Analysis Solutions

HOUSTON, Texas – July 25, 2006 – Visual Numerics, Inc., celebrating 35 years of producing advanced numerical analysis and visualization software, announced today that it has partnered with Sonata Information Technology Ltd. (Sonata), a leading product marketer and data solutions provider and wholly owned subsidiary of Sonata Software Limited in Bangalore India. Sonata will sell and provide technical support throughout India for Visual Numerics’ IMSL Numerical Libraries for powerful mathematical and statistical analysis, and the PV-WAVE visual data analysis development environment.

The partnership represents Visual Numerics’ most significant relationship with an Indian company and is instrumental in the continued expansion of the company’s presence in that region. For Sonata, the partnership with Visual Numerics presents an opportunity to offer leading edge data analysis and visualization solutions to its growing customer base.

“We chose to partner with Sonata Information Technology because of their strong relationships with reputable technology companies such as IBM, Microsoft and BEA; their deep technology expertise and established practice areas in Application Development and Business Intelligence; and their broad cross-industry coverage in India,” said Phil Fraher, president and CEO of Visual Numerics. “As software development in India continues to grow, we’ll be in a better position through Sonata to supply highly-tested, robust data analytics solutions to India’s extensive software developer community.”

“We have been looking for a technology company that offers sophisticated analytics software tools to complement our product portfolio,” said Sujit Mohanty, Director & AVP, Sonata Information Technology Ltd. “Through this partnership, Visual Numerics’ solutions will help us provide current customers with the best business analytics solution available, and allow us to pursue additional customer channels.”

About Visual Numerics, Inc.

Visual Numerics has provided technical software solutions for numerical analysis and visualization for more than three decades. The company's software products help users understand complex data from a variety of sources and build business-critical applications. Visual Numerics offers two product lines: the IMSL Numerical Libraries for powerful mathematical and statistical analysis and the PV-WAVE® visual data analysis development environment. Visual Numerics also offers customized professional services for applications that involve mathematical, statistical, or visual data analysis to meet today's business analytical needs.

About Sonata Information Technology Ltd.

Established as a wholly owned subsidiary of Sonata Software Ltd in 2000, Sonata Information Technology Ltd (SITL) is a focused company operating in high growth segments of software products, including Enterprise Application Integration, eCommerce Solutions, IT Consulting and eCRM. Sonata Software has seven regional offices in India and ten offices in the US, UK, Germany and Singapore. Sonata has customers in 25 countries across North America, Europe and Asia. For more information about Sonata Information Technology, visit www.sonata-infotech.co.in or www.sonata-software.com.