About Us

As long-time users of DNA from Fiserv (formerly Open Solutions), we've gained a wealth of knowledge about the ins and outs of the program. Now, we'd like to put our experience to work for you. Our team represents over 35 years of IT experience. From reports to in-depth programming, GTG can assist with all your DNA needs.

Kevin Zimmer

President, GTG

SVP, Chief Information Officer

Allen Hamlin

Software Architect

Angela Pannetti

Systems Analyst

Emma Ferry

Junior Programmer

Jeremy Warren

Manager, Programming

and Project Manager

Neil VonFlatern


    75 Kellogg Street

    Pittsfield, MA 01201

    Phone: 413-236-4045

    413-236-4040 Kevin Zimmer

    © 2019 by Greylock Technology Group

    Greylock Technology Group, LLC (GTG, LLC), is a wholly owned subsidiary (CUSO – Credit Union Service Organization) of Greylock Federal Credit Union, based in Pittsfield, MA