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Index Every US public charity, on the record

Environment in District of Columbia

313 public charities the IRS codes as environment, 188 of them reporting revenue of $50,000 or more.

Organizations

Largest first

By revenue on the last return. Organizations that file Form 990-N report no figures and come last.

Organization	Return	Revenue
Planet Asap IncWashington	Form 990 or 990-EZ	No figure
International Science FoundationWashington	Form 990 or 990-EZ	No figure
Textile Renewal AllianceWashington	Form 990 or 990-EZ	No figure
Young Professionals in Energy DCWashington	Form 990-N	No figure
Lighthouse Energy InstituteWashington	Form 990 or 990-EZ	No figure
The Glover ProjectWashington	Form 990-N	No figure
Foundation for Biodiversity IncWashington	Form 990 or 990-EZ	No figure
Grid AlternativesWashington	Form 990 or 990-EZ	No figure
World Foundation for EnvironmentWashington	None required	No figure
Laudato Si MovementWashington	None required	No figure
American Friends of Green Lebanon ClubWashington	Form 990-N	No figure
Where Good Things Grow 501C3 FoundationWashington	Form 990-N	No figure
Ocean Lab IncWashington	Form 990 or 990-EZ	No figure

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By size

Under $50K101
$50K to $500K38
$500K to $1M22
$1M to $2.5M30
$2.5M to $5M22
Over $5M79
No figure on file21

Size classes

Peers are ranked inside these.

$50K to $500K
36 organizations, median $201K
$500K to $5M
73 organizations, median $1.52M
Over $5M
79 organizations, median $13.7M

Most common codes

Natural resources conservation and protection
NTEE C30
43
Alliances and advocacy
NTEE C01
37
Research institutes and public policy analysis
NTEE C05
31
Energy resources conservation and development
NTEE C35
28
Environmental education
NTEE C60
24
Environmental beautification
NTEE C50
22
Water resources, wetlands conservation and management
NTEE C32
16
Professional societies and associations
NTEE C03
15

Cities

Washington
312
District of Columbia
1

Source. IRS public records, as of October 13, 2026. Financial figures are from the most recent return on file. Street addresses are not published here.

Peers. Public charities with the same focus group, state and size class, and a return no more than 33 months old.

Scope. The Index covers the 501(c)(3) organizations the IRS classes as publicly supported charities, in the 50 states and the District of Columbia. Churches, schools, hospitals and supporting organizations are classed separately and are not included.