Connecticut
Block Island Express (New London to Block Island, RI)
Maine
Casco Bay Lines (Portland to islands in Casco Bay)
The Cat (Bar Harbor, Maine to Yarmouth, Nova Scotia, Canada)
Monhegan Boat Line (Port Clyde to Monhegan)
Maine State Ferry Service (Rockland to Vinalhaven, North Haven, Matinicus Island)
Maine State Ferry Service (Lincolnville to Islesboro, Bass Harbor, Swans Island, Frenchboro)
Massachusetts
Boston Harbor Cruises (Boston to Provincetown)
Bay State Cruise Company (Boston to Provincetown)
Hy-Line Cruises (Hyannis to Martha’s Vineyard, Nantucket)
Steamship Authority (Hyannis to Nantucket and Wood’s Hole to Martha’s Vineyard)
New Hampshire
The M/V Sophie C mailboat stops at some of the islands
Rhode Island
Block Island Ferry (Point Judith/Newport to Old Harbor)
Block Island Fast ferry (Galilee to New Harbor)
RIPTA, Providence to Newport
Vermont
Fort Ti Ferries (crossing Lake Champlain from Fort Ticonderoga to Larrabees Point)
Lake Champlain Ferries (Plattsburg, NY to Grand Isle, VT; Essex, NY to Charlotte, VT; Burlington, VT to Port Kent, NY)