The Dutch renewable energy consultants has also opened its first permanent US office in Boston.
Mayflower Wind is a joint venture of Shell New Energies and Ocean Winds, the global offshore wind collaboration between EDP Renewables and ENGIE.
The project is expected to generate enough clean electricity to power more than half a million Massachusetts homes when it comes onstream in 2025.
The project is using a Federal lease area about 30 miles south of Martha’s Vineyard and 23 miles south of Nantucket and has PPAs in place with Massachusetts utilities.
Ventolines’ director of contracting and construction Thibaut de Groen said: "As America begins to catch up to Europe, we are proud to be part of the team bringing more wind farms and sustainable energy to the US."