The Larson Group Inc. 12600 Gravenhurst LnGaithersburg, MD, 20878 View Phone 301-977-9697 12600 Gravenhurst LnGaithersburg, MD 20878 View Website Experience & Reliability In Business Since: 1975 Insured Employee Background Checks Employee Drug Testing All Work Owner Supervised Family Owned & Operated About Photos & Videos Connect with this Business: Send to My Email Send to My Phone Print this Page