DSET Among "Fast 50" Technology Companies in New Jersey.

BRIDGEWATER, NJ--(BUSINESS WIRE)--Aug. 30, 1999--

(NASDAQ:DSET) DSET Corporation has been designated one of New Jersey's "Fast 50" technology companies for 1999 in the annual list compiled by the accounting and consulting firm of Deloitte & Touche. The Fast 50 showcases the fastest-growing technology companies in 26 regions in the United States, Canada, and the United Kingdom.

To earn a place in the 1999 Fast 50 ranking, a company had to demonstrate exceptional revenue growth over the last five years. With growth of 630% from 1994 to 1998, DSET ranked twenty-sixth among the select group of New Jersey companies specializing in areas such as telecommunications, computers, and biotechnology.

"Recognition as a Fast 50 company has several important dimensions," said Bill McHale, president and chief executive officer of DSET. "First, it's a testimonial to the success we've achieved as a supplier of leading-edge software solutions for the telecommunications industry. But it also reflects the contribution we're making to the economy of New Jersey as part of the expanding group of technology companies creating solid career opportunities for the twenty-first century."

About DSET:

DSET Corporation is a leading provider of software solutions created specifically for the global telecommunications marketplace. Network-equipment suppliers worldwide use DSET application development tools to build software applications that manage network components and support new services. The DSET suite of electronic-bonding gateways is designed to interconnect the operations support systems (OSSs) of competing service providers that must trade information and share network capabilities to provision a growing range of services for customers. DSET's local number portability solutions also play a key role in enabling business and residential customers to change service providers without changing their local phone numbers. DSET is headquartered in Bridgewater, New Jersey, and the company's Web site can be viewed at www.dset.com.

Statements regarding financial matters contained in this press release, other than historical facts, are forward-looking. Since all statements about DSET's plans, estimates, and expectations are based on current projections that involve risks and uncertainties, and are subject to change at any time, the company's actual results may differ materially from expected results. Investors should consider these risks and uncertainties, which are discussed in documents filed by DSET with the Securities and Exchange Commission. These documents identify important factors that could cause the actual results to differ materially from those contained in the projections or forward-looking statements. DSET expressly disclaims any obligation to update any forward-looking statements.

DSET and the DSET logo are registered trademarks of DSET Corporation.