Each Downeast Energy and Building Supply office or site supports organizations within the local community; Downeast as a whole also supports various events and organizations in Maine and New Hampshire.

Among many others, these organizations include:

Biddeford:

Brunswick Office/Companywide:

• American Cancer Society's Relay For Life
• American Red Cross
• Alzheimer's Association of Brunswick and Topsham
• Alliance for Multiple Sclerosis
• Ararat Babe Ruth League
• Bangor Theological Seminary
• Bigelow Lab
• Bowdoin College
• Brunswick Community Complex
• Brunswick Downtown Master Development Plan
• Brunswick Hospice Volunteers
• Brunswick Intown Group
• Boothbay Harbor Chamber of Commerce
• Windjammer Days
• Coastal Maine Botanical Gardens
• Curtis Memorial Library
• Fifty Five Plus
• Friends of Cox Pinnacle
• Good Shepherd Food Bank
• Habitat for Humanity - Brunswick/Youthbuild
• Harpswell Fesitval
• Harpswell Heritage Land Trust
• Hunger Prevention
• Joshua Chamberlain Memorial
• KIDS Consortium
• Lincoln Arts Festival
• Maine Development Foundation
• Maine Distance Festival
• Maine Maritime Museum
• Maine State Music Theater
• Midcoast Hospital
• National Audubon Society
• Opportunity Farm
• Friends of Parkview Hospital
• Pejepscot Historical Society
• The Puffin Project
• Sweetser Holiday Toy Drive
• Topsham Library
• WGMX Feed the Hungry Food Drive

Dover Office:

• United Way of the Greater Seacoast
• South Berwick Children's Leadership
• Dover Rotary Club

Hallowell Office:

• Habitat for Humanity
• Kennebec Valley Chamber of Commerce
• YMCA of the Kennebec Valley
• Kennebec Valley Arts Association

Kennebunk Office:

• YMCA of Northern York County Youth Outreach Program
• Southern Maine Medical Center

Mount Vernon:

South Portland Office:

• Baxter Memorial Library
• Institute for Civic Leadership Scholarship Fund
• Cystic Fibrosis Alliance Fishing Tournament
• Maine Arts

Springvale Office:

• Sanford Boosters
• Sanford Mainers Baseball

Waterville Office:

• Waterville YMCA
• Mid-Maine Chamber of Commerce
• Waterville Area Boys & Girls Club
• Waterville Regional Arts and Cultural Center

Windham Office:

• Camp Sunshine (Moonlight Charity Challenge)
• Raymond Baseball/Softball

Yarmouth Office:

• Yarmouth Clam Festival
• YMCA of Casco Bay Youth Scholarship Fund

York Office:

• York Parks & Recreation