These foundations have a track record of funding environment work in Delaware, based on IRS 990 grant data. Use the list below to find funders aligned with your mission, then sign up free to see how well your nonprofit fits each one.
Open Grant Opportunities
Live programs funding environment in Delaware that your nonprofit can apply to now.
Open nowCloses in 13 days (Nov 25, 2026)Award: Up to $100K
Impact100 Philadelphia Core Mission Operating Grant
Who can apply: Applicants must be tax-exempt under Section 501(c)(3) or contractually linked to a 501(c)(3) fiscal sponsor or eligible parent organization; located in and serving residents of Bucks, Chester, Delaware, Montgomery, or Philadelphia counties in Pennsylvania; have at least three full years of independently prepared audited or reviewed financial statements; demonstrate local control of funds; have most recent annual operating expenses above $300,000 and below $3,000,000; and have a core mission addressing unmet needs through programs or services in Arts & Culture, Education, Environment, Family, or Health & Wellness. Applicants cannot have received an Impact100 Philadelphia $100,000 grant in the past six grant cycles or a grant under $100,000 in the past three grant cycles. Funds may not support debt reduction, operating deficits, interim or bridge funding, endowments, individuals, private foundations, religious or political activities, fund drives, fundraising events, or general capital campaigns.
Who can apply: Applicants must be tax-exempt under Section 501(c)(3), or contractually linked to a 501(c)(3) fiscal sponsor or eligible parent organization; be located in and serve residents of Bucks, Chester, Delaware, Montgomery, or Philadelphia counties in Pennsylvania; have at least three full years of independently prepared audited or reviewed financial statements; demonstrate local control of funds; have most recent annual operating expenses above $300,000 and below $3,000,000; and not have received an Impact100 Philadelphia $100,000 grant in the past six grant cycles or a grant under $100,000 in the past three grant cycles. Proposed work must support the organization's core mission in one or more of the five focus areas and funds must be expended within 24 months. Grants may not fund debt reduction, operating deficits, interim or bridge funding, endowments, religious or political activities, fund drives, annual appeals, fundraising events, or general capital campaigns.
Indoor air qualityHealthy indoor environmentsAir pollution interventions+1 more
Who can apply: Applicants must be authorized to work in the United States and employed by a U.S. not-for-profit institution. Applicants may submit only one application or LOI per review cycle.
Who can apply: Open to faculty currently teaching at a professionally accredited bachelor's, master's, or PhD program in architecture, landscape architecture, interior architecture, urban design, or engineering in the United States. Research must be developed in an institutional studio or seminar, with interdisciplinary collaboration and student engagement. SOM Foundation affiliated members, SOM employees, and faculty from previously awarded proposals are ineligible.
Who can apply: Applications are open to DEED member organizations. Public power utilities, joint action agencies, state and regional associations, and federal service contractors that are APPA members are eligible to join DEED.
Animal welfareChild and family welfareFamilies of fallen law enforcement officers and military KIA+5 more
Who can apply: Applicants must be nonprofit organizations based in the United States that qualify for public charity status under Section 501(c)(3) of the Internal Revenue Code and address one or more of the Foundation’s stated funding interests. Applicants must submit the IRS determination letter, most recent Form 990, current and prior annual operating budgets, and required program or project budgets where applicable. Organizations that previously received funding must wait two years before submitting another request. The Foundation does not fund individuals, for-profit businesses, unqualified international organizations, private foundations, political lobbying, or indirect costs.
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