CONCORD, Mass., Feb 10, 2003 -- OneSource Information Services, Inc. (Nasdaq: ONES), a leading provider of business information solutions, now offers online access to its CorpTech(R) database through a new and enhanced Website,  . As the definitive source on high-technology company data, the CorpTech database provides in-depth profiles of over 50,000 U.S. public and private technology companies, with special focus on emerging private company data unavailable through any other source. The new site offers multi-tiered subscription options, as well as pay-per-view and list purchase options, delivering convenient and cost-effective solutions tailored to a wide range of information needs.

CorpTech.com access options include: -- Gold Subscription--The Gold premium subscription allows unlimited searching based on 20 different search criteria, and unlimited viewing and downloading of company profiles. -- Silver Subscription--The Silver subscription allows unlimited searching based on 20 different search criteria, and unlimited viewing of company profiles. -- Library Subscription--Offered to public and corporate libraries, the Library subscription allows searching by company name; location, including state, MSA code and zip code; and product, including CorpTech Code, NAICs and SIC. Access through this service is based on IP address, eliminating the requirement of individual or shared passwords. -- Pay-per-view Profiles--Offered to individuals who wish to purchase data as they need it. -- Downloadable Lists--Downloadable lists are available in mailing label, telemarketing and standard profile formats. Prepackaged lists are available for states, U.S. geographic regions and industry selections as well as for customized search results.