Isles of Shoals Steamship Company

The Isles of Shoals Steamship Company is a maritime tourism business located in Portsmouth, New Hampshire, United States. The company offers a variety of cruises, charters, and special events, including history tours of the Portsmouth Harbor, the Isles of Shoals, and the New Hampshire seacoast. The M/V Thomas Laighton, the company's 300-capacity passenger vessel, is available for private events such as weddings, company outings, and celebratory parties.