Corporate Retreats in Portland, ME

Bring your team—and their families—to an island retreat where work and play come together in the most memorable way. Set along the waterfront on Great Diamond Island, Diamond’s Edge Restaurant & Marina offers a distinctive setting for corporate outings, retreats, and celebrations. With scenic views of Casco Bay, thoughtful hospitality, and fresh coastal dining, it’s a place where business gatherings feel relaxed and unforgettable.

Perfect For:

  • Corporate Outings & Team-Building Retreats

  • Family Outings, Company Picnics & Appreciation Days

  • Client Events with a Personal Touch

  • Summer Celebrations & Milestone Parties

Our Event Spaces:
With over 6,600 square feet of flexible event space, Diamond’s Edge accommodates everything from executive board meetings to large-scale corporate dinners.

Catering by Culinary Experts:
Our in-house team crafts menus tailored to your group — from elegant plated dinners to casual buffets and hors d’oeuvres — all inspired by the flavors of the Maine coast.

From paddleboarding and lawn games to sunset toasts and shared meals, this is more than an outing — it’s an experience your team (and their families) won’t forget.

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  • Unique Setting

    Set on Great Diamond Island, Diamond’s Edge offers a distinctive backdrop for any corporate event. Indoor and outdoor spaces are thoughtfully designed to host meetings, retreats, or social gatherings in a setting that blends natural beauty with refined hospitality.on goes here

  • Team Building

    From scavenger hunts and trust-building exercises to lawn games, Diamond’s Edge provides an engaging environment for team building in Portland, Maine. The waterfront setting on Great Diamond Island encourages collaboration, creativity, and connection among colleagues.

  • Lobster Bakes

    Experience a taste of Maine with our classic lobster bakes, perfect for corporate gatherings. Enjoy fresh seafood and casual waterfront dining while taking in scenic views, creating a memorable and relaxed atmosphere for company retreats, offsite meetings, or celebrations.

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