London, 16 November 2004 - OneSource Information Services Limited, a global provider of business information solutions, announced today that the UK part of COLT Telecom Group plc (COLT), a leading pan-European provider of business communications solutions and services, is using OneSource business information as a cornerstone in its initiative to gain advantage in the intensely-competitive market for high bandwidth data, internet, voice, and advanced telecommunication services. Sales and Account Managers in COLT’s Retail,Enterprise, Wholesale, and Multinational Business units use the UK Edition of OneSource’s Global Business Browser subscription service, which delivers daily news feeds, industry and company profiles, as well as executive biographies and corporate family details. COLT credits OneSource for helping optimise sales performance and win new business through better prospecting, more effective account planning, and improved consultative selling.

“OneSource is helping us stand out from the crowd in the very competitive business-to-business communications market,” said Mark Ryder, Sales Director of COLT’s Retail Corporate Sales Group. “Most companies in our industry compete on the basis of price. Using OneSource, we can take a more consultative approach with our prospects where we look deeper into the company, understand its industry, build a more effective account strategy, and match our solutions to each client’s specific objectives.”

Within the Retail Corporate Sales Group, OneSource business information is used in support of several core sales processes, including the following:

• Sales Managers use OneSource as a top-level research tool to evaluate vertical industries, understand key business drivers, and hone market development strategies.
• Account Executives use OneSource to select and tier prospect lists based on revenue, number of employees, and other criteria. They also use the Business Browser Alert feature to monitor significant events at top prospect accounts.
• Account Managers use OneSource to profile assigned accounts, qualify opportunities, develop account strategies, and prepare more thoroughly for client meetings.

According to Ryder, OneSource also helps the Retail Corporate Sales Group uncover new opportunities within existing accounts by delving deeper into corporate structures. As an example, Ryder cites one of Europe’s leading financial institutions, a COLT customer with approximately 110 subsidiaries in a broad range of industries outside of banking. The Account Manager used OneSource business information to identify all of the subsidiaries, understand their markets, and then leverage the parent relationship to win new business within the account.

“OneSource is the only research tool we use because it supports our entire sales process, from prospecting to staying on top of existing clients,” concludes Ryder.

The OneSource® Business Browser family of business information subscriptions provides robust, integrated information on over 3.2 million public and private companies worldwide. Global Business Browser is tailored for business professionals who require global perspectives to complement detailed coverage of local markets. Through Global Business Browser, business professionals can access in-depth intelligence on companies whose operations reach beyond any one region or continent.

Over 750 leading companies worldwide have chosen OneSource to provide the vital business information that powers their sales, marketing, finance, customer service, and consulting organisations.

About COLT

COLT Telecom Group plc is a leading pan-European provider of business communications services. COLT has over 19,000 network services and data centre solutions customers. The company owns an integrated 20,000 kilometre network that directly connects 32 major cities in 13 countries augmented with a further 42 points of presence across Europe and 11 Data Solution Centres. COLT supplies customers across the full spectrum of industry, service and government sectors with unrivalled end-to-end network security, reliability and service. COLT Telecom Group plc is listed on the London Stock Exchange (CTM.L) and NASDAQ (COLT). Information about COLT and its products and services can be found on the web at www.colt.net .

About OneSource Information Services, Inc.

OneSource, a Donnelley Group company of info USA, and a recognised leader in business information solutions, delivers unparalleled company, executive, and industry intelligence that makes business professionals more effective and productive in completing their critical daily tasks. OneSource products and services support a company''s vital business processes, including serving customers, finding and leveraging new opportunities, and managing suppliers and partners.

OneSource combines and organizes content from over 2,500 information sources supplied by more than 35 world-class content providers, creating an unequalled information resource encompassing company profiles, corporate families, industries, executives, financials, news, analyst reports, and trade and business press articles.

OneSource is headquartered in Concord, MA, with offices located in North America, Europe, and the Pacific Rim. Product information is available at www.onesource.com. Customers include Bank One, Chubb, Citigroup, Deloitte & Touche, HP, i2 Technologies, Orange, Royal & SunAlliance, SAS Institute, and Sun Microsystems.

OneSource, Business Browser, AppLink, Synergy, Catalyst, Global Business Taxonomy, and/or other OneSource product and service names referenced herein are either trademarks or service marks or registered trademarks or service marks of OneSource Information Services, Inc. or its subsidiaries in the United States and/or other countries. All other product and service names mentioned herein are trademarks or service marks of their respective owners.