All Shell Locations - Massachusetts
- Agawam
- Arlington
- Ashland
- Attleboro
- Auburn
- Bedford
- Belmont
- Berlin
- Beverly
- Billerica
- Bondsville
- Boston
- Bourne
- Bradford
- Braintree
- Brighton
- Brockton
- Burlington
- Cambridge
- Canton
- Charlestown
- Chelmsford
- Cheshire
- Chicopee
- Dalton
- Danvers
- Dedham
- Dorchester
- Douglas
- Dracut
- East Boston
- East Templeton
- Eastham
- Edgartown
- Fall River
- Foxboro
- Framingham
- Franklin
- Gardner
- Great Barrington
- Greenfield
- Groton
- Hadley
- Hampden
- Hanover
- Holbrook
- Holyoke
- Hudson
- Hyde Park
- Lee
- Leominster
- Lexington
- Littleton
- Longmeadow
- Lowell
- Ludlow
- Lynn
- Marlborough
- Marshfield
- Mashpee
- Medway
- Melrose
- Methuen
- Middleboro
- Milford
- Milton
- Natick
- Needham Heights
- Newburyport
- Newton
- North Adams
- North Andover
- North Attleboro
- North Dartmouth
- North Grafton
- North Oxford
- North Weymouth
- Northampton
- Norwood
- Orange
- Palmer
- Peabody
- Pembroke
- Pittsfield
- Plainville
- Plymouth
- Quincy
- Randolph
- Raynham
- Reading
- Revere
- Roslindale
- Sagamore
- Salem
- Scituate
- Seekonk
- Shrewsbury
- Somerset
- South Attleboro
- South Boston
- South Dennis
- South Hadley
- South Yarmouth
- Southborough
- Southbridge
- Southwick
- Springfield
- Stoughton
- Sturbridge
- Swansea
- Tewksbury
- Topsfield
- Wakefield
- Waltham
- Ware
- Wellesley
- West Boylston
- West Bridgewater
- West Newton
- West Roxbury
- West Springfield
- Westborough
- Westfield
- Weston
- Westwood
- Wilbraham
- Wilmington
- Woburn
- Worcester
- Wrentham