Boston Harbor Cruises
- Three hour narrated whale watches aboard high-speed catamarans to Stellwagen Bank. Tours, charters, tickets, schedules, photos, whale facts, and contacts.
- http://www.bostonharborcruises.com/whale_main.html

Portuguese Princess Excursions
- Three hour tours of Stellwagen Bank. Information on weather, what to bring, and what to expect to see.
- http://www.provincetownwhalewatch.com/

Cape Ann Whale Watch
- Boat tours for whale watching with guarantee of sightings.
- http://www.seethewhales.com/

Seven Seas Whale Watch
- One of the oldest Gloucester whale watch companies. Offers guaranteed sightings. Operates late April through October.
- http://www.7seas-whalewatch.com/

New England Aquarium
- Trips from Downtown Boston with on-board exhibits and interactive programs. Operates June through October.
- http://www.neaq.org/visit/wwatch.html

Dolphin Fleet
- Sailing mid-April through October with 3-4 hour cruises, departing from MacMillan Pier in Provincetown.
- http://www.whalewatch.com/

Yankee Fleet
- Whale watching and deep sea fishing fleet with daily trips from Gloucester. Naturalist led marine life sight seeing.
- http://yankeefleet.com/

Newburyport Whale Watch
- Information on whale watch tours and dinner cruises, including school trips and private charters.
- http://www.newburyportwhalewatch.com/

Capt. John Boats
- Crosses Cape Cod Bay from Plymouth, April - October. 4 hour trips teach about whales, whale behavior and seabirds.
- http://www.whalewatchingplymouth.com/

Hyannis Whale Watcher Cruises
- Whale watching cruises in Barnstable. Includes sighting reports, biology, and information about internships.
- http://www.whales.net/