PRESS RELEASE
For Immediate Release
June 25, 2003

CARROLLTON BANK EXPANDS RELATIONSHIP WITH METAVANTE FOR COMPREHENSIVE BANK OUTSOURCING SOLUTION


MILWAUKEE, June 25, 2003 - Carrollton Bank, the banking subsidiary of Carrollton Bancorp (Nasdaq: CRRB) with more than $324 million in assets, has signed a long-term agreement for a comprehensive suite of bank technology solutions with Metavante Corporation, the financial technology subsidiary of Marshall & Ilsley Corporation (NYSE: MI).

"Our expanded agreement with Carrollton Bank represents the Metavante commitment to building stronger relationships with our clients and delivering the highest level of quality and service that continues to differentiate us from our competitors," said Frank R. Martire, Metavante president and chief executive officer. "We look forward to extending our relationship with Carrollton Bank and we're confident our comprehensive suite of solutions will provide a solid technology platform for Carrollton to deliver competitive products and services to its valued customers."

Carrollton Bank has been a Metavante client since 2000 for ATM management services which include the driving and monitoring of ATM transactions. With this new agreement, Metavante will also provide Carrollton Bank with products and services that support financial account processing, electronic banking, and customer relationship management (CRM). Metavante anticipates converting Carrollton Bank to its integrated banking system in October 2003.

"Part of our business strategy was to align with an established financial services provider that could provide our company with a total solution of products and services to meet the diverse needs of our consumer and business clientele," said Ted Bootey, senior vice president, Carrollton Bank. "We value the flexibility and ability of the Metavante system to support the total integration of solutions, from deposit and loan processing to its branch automation platform and electronic banking services."

Metavante Financial Technology Services offers the most comprehensive set of integrated products and services for over 900 financial services providers that are centered on customer and account management, specializing in deposit, loan and investment accounts. Solutions include core accounting services, retail delivery systems, card solutions, productivity tools, and trust and professional services. Metavante provides core account outsourcing to 520 financial services providers, and is a leading deposit system outsourcer for the top 100 U.S. banks.

About Carrollton
Carrollton Bancorp is the parent company of Carrollton Bank, a commercial bank serving the deposit and financing needs of both consumers and businesses through a system of ten branch offices in central Maryland and a network of 152 ATMs located in Maryland, Virginia, and West Virginia. Carrollton Bank, celebrating its 100th anniversary, provides brokerage services through Carrollton Financial Services, Inc. and mortgage services through Carrollton Mortgage Services, Inc., both subsidiaries of the Bank. For additional information, visit the Company's Internet site at www.carrolltonbank.com.

About Metavante
To improve the financial experience for more than 5,100 clients - including the largest 20 banks in the United States - and their thousands of customers, Metavante Corporation delivers virtually all of the technology that an organization needs to offer financial services. Metavante offers financial technology solutions that drive customer relationship management, electronic banking, electronic funds transfer and card solutions, electronic presentment and payment, financial technology services, and wealth management. Headquartered in Milwaukee, Wis., Metavante is wholly owned by Marshall & Ilsley Corporation (NYSE: MI). Metavante is a registered trademark of Metavante Corporation. For more information see www.metavante.com.

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