Green Seal Environmental, Inc. (GSE) is headquartered in Sandwich, Massachusetts.

Sandwich, MA - 28 Route 6A Sandwich, MA - Phone: (508) 888-6034 / Fax: (508) 888-1506

• 495 South turns into 25 South
• Go across the Bourne Bridge (over the Cape Cod Canal)
• Go ¾ the way around the rotary to Route 6A East
• Follow Route 6A East approximately 5 miles
• GSE is on the right in The Johnson Building
• Entrance is on the front left side of the building
• View Larger Map of 28 Route 6A, Sandwich, MA