Comverge Technologies Inc. Hires Wall Street Executive.

Business & Technology Editors

FLORHAM PARK, N.J.--(BUSINESS WIRE)--April 5, 2001

Comverge Technologies Inc. today announced that Joseph D. Esteves, formerly Executive Director of Global Power & Pipelines at UBS Warburg LLC, has joined Comverge as Executive Vice President. Prior to UBS Warburg, Mr. Esteves was Vice President at Goldman Sachs (now Goldman Sachs Group) and Salomon Brothers. During his 15 year investment banking career, Mr. Esteves specialized in the power sector with extensive experience in corporate finance, project finance and mergers and acquisitions. He has been involved in closing transactions with an aggregate value in excess of $10 billion, mostly in the electric utility sector.

Commenting on his appointment, Mr. Esteves stated: "The combination of utility deregulation and the current energy shortage affecting various parts of the country offers unprecedented opportunities for Comverge's sophisticated load management products. I am very excited to be joining a company that will play a significant role in mitigating this country's energy crisis with environment-friendly solutions."

"As the need for load management is increasing throughout the country, we see many opportunities to create joint ventures and large infrastructure projects which require specialized experience and expertise in the development of these opportunities and in raising the capital necessary to fund them. We are very happy to have an executive of the caliber of Mr. Esteves that brings these specific skills to the leadership of the company." stated Frank Magnotti, President of Comverge.

Comverge Technologies, a subsidiary of Data Systems & Software Inc. (NASDAQ:DSSI), is the "new power in power technologies" providing over 5000 MW of peak load reduction to over 450 energy companies worldwide. Comverge provides end-to-end, two-way communication solutions including automated meter reading, utility and/or customer controlled appliance cycling, outage detection, load profiling, home automation, environmental monitoring and distributed generation monitoring. Comverge is headquartered in Florham Park, NJ, with offices, research facilities, representatives and agents around the world. For more information visit Comverge's website at www.comverge-tech.com. In addition to the energy product solutions business conducted through Comverge, DSSI is a provider of computer consulting and development services, and is an authorized direct seller and value added reseller of computer hardware.

This press release includes forward-looking statements, which are subject to risks and uncertainties, including risks associated with (i) conditions in the market for utility solutions and (ii) the pace and consequences of deregulation. Actual results may vary from those projected or implied by such forward-looking statements. A more complete discussion of risks and uncertainties which may affect the accuracy of these statements and Comverge's business generally is included in "Business-Factors Which May Affect Future Results-Risks Related to the Utility Solutions Segment" in the most recent Annual Report on Form 10-K of Data Systems & Software Inc. as filed with the Securities and Exchange Commission.