ST. LOUIS -- December 16, 2003 – SAVVIS Communications (NASDAQ: SVVS), a global managed services provider, today announced an agreement with EasyScreen Inc., a subsidiary of EasyScreen Plc (LSE:EAS), a global supplier of software to electronic exchanges, to provide integrated hosting and network services for EasyXchange, EasyScreen’s multi-asset class trading solution. SAVVIS Financial XchangeSM will serve as the network integration platform for EasyScreen, leveraging SAVVIS’private and secure IP infrastructure and Chicago hosting facility.

EasyScreen is committed to delivering the best-in-class integrated trading systems to global customers. EasyXchange provides trading software and multi asset class connectivity to global financial institutions, banks, brokers and trading houses and also hosts and manages the connectivity to exchanges. EasyScreen selected SAVVIS for U.S. hosting of EasyXchange based on SAVVIS’ leadership in financial services industry, proven connectivity into all the major exchanges, brokers and banks, as well as SAVVIS’ industry-leading guaranteed Service Level Agreement (SLA).

“SAVVIS’ well-documented network performance, combined with their pedigree in the financial services sector and virtualized approach to service delivery, made them the clear choice for launching and establishing the EasyXchange trading platform in the United States,” said Philip Docker, chairman of EasyScreen. “Maintaining EasyXchange’s rapid trading speed was a vital consideration for EasyScreen. I am delighted that EasyXchange will run on the SAVVIS network and look forward to delivering this cutting edge, cost-effective service to our customers in the U.S.”

SAVVIS’ Financial XchangeSM services will provide “24 by 7” hosting for the EasyScreen applications and network access via SAVVIS’ award-winning Intelligent IP NetworkSM .. EasyScreen will deliver four integrated applications over the SAVVIS network in the United States:

· EasyRouter – EasyScreen’s core trading platform, connectivity and administration middleware;

· Easy Active Trade (“EAT”) – The client application for Easy Router, which includes a functionality rich multi-asset class trading screen; and;

· EasyShield – A fast, sophisticated pre-trade risk management system that aggregates margins across multi-asset classes for the most effective use of capital, and;

· EasyFIX API – a FIX translation interface for the connection of client front end trading screens and black box applications, integration of back, middle office and client order management systems, and connection to proprietary APIs.

EasyXchange will connect to Euronext Liffe, EUREX, Euronext Paris, Chicago Board of Trade e-CBOT, Chicago Mercantile Exchange, Montreal Derivatives Exchange, Singapore Exchange, the Sydney Futures Exchange and vendor connected equity and FX markets worldwide, with more to follow in the future, including EUREX U.S.

“EasyScreen and SAVVIS together offer a new level of service and performance to EasyScreen customers wishing to connect to and trade on the world’s electronic financial exchanges,” said Jack Finlayson, president and chief operating officer of SAVVIS. “The EasyScreen system takes full advantage of the SAVVIS managed utility model, including hosting, private IP VPN and Internet services, that also distinguishes SAVVIS Financial XchangeSM.”

The SAVVIS IP network now spans 1,300 cities in 45 countries, encompassing the United States, Canada, Latin America, Europe, The Middle East, and Asia. SAVVIS also operates six managed hosting centers in the United States, Europe and the Pacific Rim.

About EasyScreen
EasyScreen (LSE:EAS) is a global supplier of trading software and connectivity to electronic exchanges. The company is rated as a Tier One Independent Software Vendor (ISV) by Euronext-liffe and connects to EUREX, Chicago Board of Trade e-CBOT, Chicago Mercantile Exchange, Montreal Derivatives Exchange, Singapore Exchange, the Sydney Futures Exchange, the NQLX and vendor connected equity and FX markets worldwide. EasyScreen supplies trading software to a client base of global financial institutions, banks, brokers and trading houses. More information may be found at

SAVVIS Communications (NASDAQ: SVVS) is a leading Managed Services Provider that delivers private IP VPNs (virtual private networks), hosting, IP voice and application services to businesses. SAVVIS solutions are designed for industries with demanding IP requirements, including legal, media, retail, professional services, healthcare, manufacturing, and financial services. With its recent acquisition of the commercial business of WAM!NET, the company now delivers fully managed media services that enable organizations to share, collaborate, store and manage content with their partners and clients, and accelerate their workflows in the process.

SAVVIS was ranked #3 in IP VPN market share by IDC in its 2003 report, trailing only AT&T and MCI/WorldCom. Known as The Network that Powers Wall StreetSM, its network reliability was declared “perfect” in Network World magazine’s groundbreaking study of backbone performance. SAVVIS recently won the American Business Awards “Stevie”TM in the category of Best Customer Service Organization. SAVVIS’ managed hosting services were awarded the Service Provider Excellence Award by Boardwatch magazine for its virtualized approach to managed hosting, and the Market Engineering Award from Frost & Sullivan for product differentiation and innovation.

For more information about SAVVIS’ Intelligent IP NetworkSM and managed hosting solutions, visit: . For information about WAM!NET visit:

Forward-Looking Statements
This document contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Actual results may differ materially from SAVVIS’ expectations. Certain factors that could affect actual results are set forth as risk factors in SAVVIS’ SEC reports and filings, including its annual report on Form 10-K for the year ended December 31, 2002, as filed with the Securities and Exchange Commission on February 28, 2003, and all subsequent filings


Carter B. Cromley
SAVVIS Communications
(703) 234-8033

Liz Hays
(202) 828-8802

Zoe Droy
EasyScreen Inc.
(847) 433 5769

Tom Barr
EasyScreen Plc
+44 (0)207 6454606