Top Shell Oyster

Watercolor on Wood Panel
30 x 24”
$4200

Top Shell Oyster Farm, owned by Liam Cosgrove and Maddie Henson, is the first in Edgartown to raise oysters exclusively in the open ocean. Our two-acre farm sits a mile offshore, where the clean, fast-moving waters of Katama Bay flow into the Nantucket Sound. This dynamic environment produces strong, healthy oysters with a sweet, briny finish—and it’s as beautiful as it is productive.

Their workhorse boat on the water is Oyster Catcher—or, as they like to say, Oystah Catchah. Built tough for open-ocean conditions, she was originally designed to recover undetonated explosives. These days, she’s enjoying a well-earned second life hauling oyster cages, sorting harvests, and keeping them steady no matter what the sea throws their way.

Grown on a rocky, pebble bottom in the open ocean, Top Shell oysters develop a clean, complex flavor you won’t find anywhere else—sweet up front, briny on the finish, with a firm, mineral-rich texture. Raised in a high-energy, nutrient-rich ecosystem, they reflect the distinct character of our offshore waters—wild, honest, and unmistakably local.