# Avance Professional Services Avance Professional Services is an ITIN acceptance agent in Stamford, Connecticut, United States. ## Details - Address: 370 West Main Street, Stamford, Connecticut, 06902, United States - Phone: [203-625-1599]() - Also trading as: Avance Professional Services LLC - Source note: IRS Acceptance Agent Program list for Connecticut (page last reviewed 02-Oct-2026; retrieved 2026-10-02). US federal public domain (17 U.S.C. 105). ## Questions ### Where is Avance Professional Services? Avance Professional Services is at 370 West Main Street, Stamford, Connecticut, 06902, United States. ### How do I contact Avance Professional Services? To contact Avance Professional Services, call 203-625-1599. ## Source From [U.S. Internal Revenue Service](https://www.irs.gov/individuals/international-taxpayers/acceptance-agents-connecticut), 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 Stamford]() - [IRS acceptance agents in Stamford]() - [More ITIN acceptance agents in Stamford]()