No one understands the IT needs of a financial institution better than another financial institution. Born as the IT Department for Greylock Federal Credit Union, Greylock Technology Group has the skills, knowledge and experience to help your institution. 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. 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