# Sung and Company, LLC Sung and Company, LLC is an ITIN acceptance agent in Rockville, Maryland, United States. ## Details - Address: 451 Hungerford Drive, Suite 109, Rockville, Maryland, 20850, United States - Phone: [240-599-0988]() - Also trading as: H & R Block - Source note: IRS Acceptance Agent Program list for Maryland (page last reviewed 20-Aug-2026; retrieved 2026-10-02). US federal public domain (17 U.S.C. 105). ## Questions ### Where is Sung and Company, LLC? Sung and Company, LLC is at 451 Hungerford Drive, Suite 109, Rockville, Maryland, 20850, United States. ### How do I contact Sung and Company, LLC? To contact Sung and Company, LLC, call 240-599-0988. ## Source From [U.S. Internal Revenue Service](https://www.irs.gov/individuals/international-taxpayers/acceptance-agents-maryland), license Public domain (17 U.S.C. 105; irs.gov content use terms request credit), checked 2026-10-03. Last updated October 3, 2026. ## Links - This ITIN acceptance agent on the [web page]() - [Certifying acceptance agents in Rockville]() - [IRS acceptance agents in Rockville]() - [More ITIN acceptance agents in Rockville]()