Custom Software Developer Home / Software Development / Maryland, USA / Gaithersburg / 20878 / The JK Group, Inc. The JK Group, Inc. - Software Development services, Maryland, USA The JK Group, Inc. Software Development services, Maryland. The JK Group, Inc., 267 Kentlands Blvd, Gaithersburg, MD 20878, 20878, USA(301) 948-2134http://www.thejkgroup.com Custom Software Developer Services offered in Maryland: Bespoke Software Development, Custom Software Development, Software Design, Application Development, Embedded Software Development, Business Software Solutions