1. people or things that provide support, nourishment, or help to maintain something
Usage: plural of sustainer

Examples

• The volunteers were the main sustainers of the community food bank.
• Parents are often the primary sustainers of their children’s dreams.
• These donors have been faithful sustainers of our charity for years.
• The organization relies on monthly sustainers to fund its programs.
• Local businesses became sustainers of the arts festival.
• The sustainers of the movement worked tirelessly behind the scenes.