Iroquois Gas Transmission System Iroquois Gas Transmission System Search | Advanced Search | New Members | Coupons and Discounts | All Categories Other >> Utilities Iroquois Gas Transmission System One Corporate Drive Ste 600Shelton, CT 06484 203-925-7200 | fax: 203-925-7210 Visit Site Connect With Us Send a message to: Iroquois Gas Transmission System Your Name: Your Email: Subject: Message: (Date: 2/5/2025) If your business isn't here, contact us today to get listed!