California · Private foundation
Amateur Radio Digital Communications
TO SUPPORT, PROMOTE, AND ENHANCE AMATEUR RADIO DIGITAL COMMUNICATIONS AND BROADER COMMUNICATION SCIENCE AND TECHNOLOGY. THIS CORPORATION SERVES AND PROMOTES AMATEUR RADIO, SCIENTIFIC RESEARCH, EXPERIMENTATION, EDUCATION, OPEN ACCESS, AND INNOVATION IN INFORMATION AND COMMUNICATION TECHNOLOGY. Its FY2025 filing reports that it funds…
- $3.5M
- Granted FY2025(still arriving)
- 111
- Grants FY2025
- 81
- Organizations funded FY2024
- 73%
- First-time grantees FY2024
- Median grant, FY2025
- $10,662
- Largest grant, FY2025
- $507,500
- Organizations funded a year
- 2 to 91
- FY2019 to FY2024
- States reached, FY2025
- 32
- Total assets, FY2025
- $143M
- Applications
- Preselected organizations only
- Per its most recent filing; check its own site
How open it is to new grantees
In FY2024, 73% of the organizations Amateur Radio Digital Communications funded were first-time grantees, receiving 59% of its grant dollars.
New vs renewed · share of each year
In FY2024, 41% of grant dollars renewed an existing relationship; $2.4M went to new ones.
RenewedFirst-time
Where new relationships form · theme of each grantee’s first grant
EducationScience & TechArts & CultureHuman ServicesPhilanthropyPublic Safety & DisasterOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.
The numbers by year
| Fiscal year | Organizations funded | To those organizations | First-time grantees |
|---|---|---|---|
| FY2025still arriving | 101 | $3.5M | 74% |
| FY2024 | 81 | $4.0M | 73% |
| FY2023 | 74 | $5.8M | 66% |
| FY2022 | 91 | $8.0M | 89% |
| FY2021 | 69 | $7.6M | 93% |
| FY2020 | 15 | $3.0M | 100% |
| FY2019 | 2 | $120k | n/a |
99% classified
What it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2019 to 2025.
Science & Tech$17MEducation$6.2MArts & Culture$2.7MCommunity Improvement$2.1MPublic Safety & Disaster$1.9MInternational$1.3MPublic Benefit$545kHuman Services$407kOther$0
Where its grants go
Grant dollars by states, across the years we hold.
Which US states its grants reach
AK
ME
NH
WA
ID
ND
MN
IL
WI
MI
NY
MA
OR
NV
SD
IN
OH
PA
NJ
CT
RI
CA
UT
CO
MO
KY
WV
VA
MD
DE
AZ
NM
KS
AR
TN
NC
SC
DC
OK
LA
MS
AL
GA
TX
FL
Top grantees
Largest recipients by total granted, FY2019 to FY2025, and the share of each one’s budget the grants supplied at peak.
| Grantee | Total granted | Years | Share of their budget |
|---|---|---|---|
| Arrl Foundation Inc | $4,569,264 | 6 | 34% |
| Software Freedom Conservancy Inc | $1,972,000 | 6 | 18% |
| Amateur Radio on the International Space Station | $1,292,515 | 1 | 40% |
| Internet Archive | $1,214,515 | 4 | 3% |
| Society of Women Engineers | $959,200 | 4 | 2% |
| Rhizomatica Communications | $882,151 | 3 | 80% |
| Open Research Institute Inc | $776,483 | 2 | 100% |
| Franklin W Olin College of Engineering Inc | $671,878 | 1 | 2% |
| Seti Institute | $583,142 | 3 | 1% |
| Tucson Amateur Packet Radio Corporation | $529,300 | 3 | 89% |
Show all 202 grantees
| Grantee | Total granted | Years | Share of their budget |
|---|---|---|---|
| Arrl Foundation Inc | $4,569,264 | 6 | 34% |
| Software Freedom Conservancy Inc | $1,972,000 | 6 | 18% |
| Amateur Radio on the International Space Station | $1,292,515 | 1 | 40% |
| Internet Archive | $1,214,515 | 4 | 3% |
| Society of Women Engineers | $959,200 | 4 | 2% |
| Rhizomatica Communications | $882,151 | 3 | 80% |
| Open Research Institute Inc | $776,483 | 2 | 100% |
| Franklin W Olin College of Engineering Inc | $671,878 | 1 | 2% |
| Seti Institute | $583,142 | 3 | 1% |
| Tucson Amateur Packet Radio Corporation | $529,300 | 3 | 89% |
| Hampton University | $404,548 | 2 | n/a |
| Rocky Mountain Ham Radio Inc | $374,233 | 1 | n/a |
| Society of Women Engineers | $365,000 | 1 | n/a |
| The Deep Space Exploration Society | $350,049 | 2 | 99% |
| Associated Universities Inc | $315,123 | 1 | 0% |
| University of Scranton | $287,480 | 3 | 0% |
| Central Michigan Amateur Network | $250,945 | 1 | 100% |
| Native Forward Scholars Fund | $250,000 | 1 | 2% |
| Portland State University Foundation | $242,240 | 1 | 1% |
| Uc San Diego Foundation | $225,533 | 1 | 0% |
| American Indian Science and Engineering Society | $216,000 | 3 | 1% |
| University of Pittsburgh | $211,971 | 1 | 0% |
| Radio Amateur Satellite Corp | $208,295 | 3 | 19% |
| Institute of Electrical and Electronics Engineers Inc | $200,000 | 1 | 0% |
| Healthcare Community Amateur Radio Club | $198,946 | 1 | 100% |
| Highline Amateur Radio Club | $183,229 | 1 | 100% |
| Pleasant Valley Telecommunications Advisory Council-Pvtac | $170,356 | 1 | n/a |
| Utah Vhf Society | $160,555 | 1 | n/a |
| Washington Women in Need | $160,000 | 2 | 6% |
| Yurok Tribe | $159,319 | 1 | n/a |
| Papa System Inc | $157,425 | 1 | 49% |
| Cascade Amateur Radio Society | $154,393 | 3 | n/a |
| Electronic Applications Radio Service | $152,747 | 4 | n/a |
| Calnet Amateur Radio Group | $152,250 | 1 | 100% |
| Colorado School of Mines Foundation | $150,000 | 1 | 0% |
| Opencollective Foundation | $150,000 | 1 | 1% |
| East Tennessee Repeater Association | $142,513 | 2 | 96% |
| Ricomu | $120,700 | 1 | n/a |
| Mississippi Valley Amateur Radio Association Inc | $116,399 | 1 | n/a |
| New England Sci-Tech Inc | $112,315 | 3 | 23% |
| Social and Environmental Entrepreneurs (See) Inc | $112,200 | 1 | 0% |
| Karuk Tribe | $110,177 | 1 | n/a |
| Teachers in Space Inc | $110,107 | 1 | 12% |
| University of California Santa Barbara | $109,648 | 1 | n/a |
| Wx5fwd Skywarn Team | $101,303 | 1 | n/a |
| Software in the Public Interest Inc | $100,000 | 1 | 14% |
| San Francisco Wireless Emergency Mesh Inc | $100,000 | 1 | n/a |
| York County Amateur Radio Society Club Inc | $99,723 | 1 | 79% |
| Southwest Louisiana Amateur Repeater Club Inc | $95,000 | 1 | n/a |
| Radio Scouting Inc | $93,320 | 2 | 96% |
| Marin County Sheriffs Office Races-Acs Unit | $92,000 | 1 | n/a |
| Case Western Reserve University | $89,763 | 3 | 0% |
| Southeast Community Development Corporation | $82,320 | 2 | 7% |
| Aircraft Carrier Hornet Foundation | $80,438 | 1 | 3% |
| Ece Repeater Group Inc | $78,929 | 2 | n/a |
| Estero Radio Club Inc | $77,000 | 1 | n/a |
| Regents Univ of California | $69,053 | 1 | n/a |
| Trustees of Purdue University | $64,213 | 1 | n/a |
| Bellingham Makerspace | $62,785 | 1 | 36% |
| Military Heritage Museum Inc | $61,115 | 1 | 5% |
| African Community Housing & Development | $60,492 | 1 | 1% |
| Valencia County Amateur Radio Association Inc | $57,451 | 2 | n/a |
| Haiti International Friendship Amateur Radio Club | $57,275 | 2 | n/a |
| Chippewa Valley Amateur Radio Club Inc | $53,200 | 1 | n/a |
| Science Is Elementary Inc | $52,600 | 1 | 13% |
| Free Software Foundation Inc | $52,100 | 2 | 4% |
| Cal Poly Pomona Foundation Inc | $51,945 | 1 | 0% |
| Merrimack Valley Amateur Radio Association | $46,125 | 1 | n/a |
| The University of Cincinnati Foundation | $45,203 | 1 | 0% |
| The Freedom Academy Foundation | $43,000 | 1 | 0% |
| Lee County Amateur Radio Emergency Service | $40,600 | 1 | n/a |
| Duval County Amateur Radio Emergency Service Inc | $40,000 | 1 | n/a |
| Jay County Amateur Radio Club Inc | $39,334 | 1 | n/a |
| Ham Radio Village Inc | $37,189 | 2 | n/a |
| Ufb New England | $35,725 | 1 | n/a |
| Central Kansas Amateur Radio Club Inc | $35,640 | 1 | n/a |
| Santa Barbara Amateur Radio Club Inc | $35,550 | 1 | n/a |
| Emergency Volunteer Corps of Nehalem Bay | $34,101 | 1 | 60% |
| Rose-Hulman Institute of Technology | $32,690 | 1 | 0% |
| Milford Amateur Radio Club | $31,255 | 2 | n/a |
| The Leffell School | $31,200 | 1 | n/a |
| Artisan's Asylum Inc | $30,878 | 2 | 1% |
| Porter County Amateur Radio Club Inc | $30,812 | 1 | n/a |
| San Angelo Amateur Radio Club | $30,642 | 1 | n/a |
| Excellence for All Steam School Network Inc | $30,000 | 1 | n/a |
| Sarasota Military Academy Inc | $29,875 | 1 | 0% |
| San Diego-Imperial Council Boy Scouts of America | $29,290 | 1 | 1% |
| Skyhublink System | $28,917 | 1 | n/a |
| Western Lake Superior Amateur Responders | $28,282 | 1 | n/a |
| Walters State Community College Foundation | $26,971 | 1 | 2% |
| Hazel Park Amateur Radio Club Inc | $26,743 | 1 | n/a |
| Hacdc Amateur Radio Club Inc | $26,319 | 1 | n/a |
| Bonner County Amateur Radio Club Inc | $26,150 | 1 | n/a |
| The National Voice of America Museum of Broadcasting | $25,500 | 1 | 12% |
| Half Moon Bay Amateur Radio Club | $25,000 | 1 | n/a |
| Northeastern Indiana Amateur Radio Association | $24,927 | 1 | n/a |
| Okaw Valley Amateur Radio Club Inc | $24,750 | 1 | 83% |
| Areslax Inc | $23,600 | 1 | n/a |
| The Museum of Information Explosion | $23,503 | 2 | 2% |
| Lamorinda Cert Foundation | $23,220 | 1 | n/a |
| Irvine Valley College Foundation | $23,038 | 1 | 2% |
| Lake Monroe Amateur Radio Society Inc | $22,976 | 2 | n/a |
| Vintage Radio & Communications Museum of Ct | $22,351 | 2 | 19% |
| Western Wayne Schools | $22,275 | 1 | n/a |
| Associated Students Inc California Polytechnic State Univ San Luis Obispo | $22,000 | 1 | 0% |
| Mercatus Center Inc | $21,860 | 2 | 0% |
| Topanga Coalition for Emergency Preparedness | $20,891 | 1 | 12% |
| World Genesis Foundation Inc | $20,000 | 1 | n/a |
| Delaware Valley Radio Association | $20,000 | 1 | n/a |
| Boston Amateur Radio Club | $19,301 | 1 | n/a |
| Schenectady Museum Amateur Radio Association | $19,033 | 1 | n/a |
| Emergency Preparedness in Calabasas- Fire Safe Council | $19,000 | 1 | 67% |
| Bridgerland Amateur Radio Club Inc | $18,831 | 2 | n/a |
| Pra Foundation | $18,500 | 1 | n/a |
| Louisiana Delta Radio Club | $18,493 | 1 | n/a |
| Hampden County Radio Association Inc | $18,300 | 2 | n/a |
| STEM Amateur Radio Club | $18,075 | 1 | n/a |
| Valley Radio Club of Oregon Inc | $16,525 | 1 | n/a |
| Great Southbay Amateur Radio Club | $15,985 | 1 | n/a |
| Msd of Lawrence Township | $15,700 | 1 | n/a |
| Friends of Yavapai County Ares Races Inc | $15,028 | 1 | n/a |
| Omik Scholarship Fund | $15,000 | 1 | n/a |
| West Virginia University Foundation Inc | $14,988 | 1 | 0% |
| University of South Florida Foundation Inc | $14,900 | 1 | 0% |
| Hot Springs Amateur Radio Club | $14,430 | 2 | n/a |
| Von Braun Astronomical Association | $14,321 | 1 | n/a |
| Raleigh Amateur Radio Society Inc | $14,065 | 1 | 38% |
| Platinum Coast Amateur Radio Society Inc | $13,783 | 1 | n/a |
| South Mountain Repeater Association | $13,452 | 1 | n/a |
| Lehi Amateur Radio Club | $13,317 | 3 | 95% |
| Grace Evangelical Lutheran Church of River Forest | $12,839 | 1 | n/a |
| Alumni and Friends of Gator Amateur Radio Inc | $12,700 | 1 | n/a |
| Center for Amateur Radio Learning | $12,601 | 1 | n/a |
| Lucas County Amateur Radio Emergency Services Inc | $12,395 | 1 | n/a |
| Pima Community College Foundation Inc | $12,268 | 1 | 0% |
| Allstarlink | $12,000 | 1 | n/a |
| Lakes of the Four Season Volunteer INC | $11,694 | 1 | 1% |
| Utah State University | $11,529 | 1 | n/a |
| Sandra Inc | $11,518 | 1 | n/a |
| Gloucester County Amateur Radio Foundation | $11,148 | 1 | n/a |
| Wikimedia Foundation Inc | $11,040 | 4 | 0% |
| St Croix Valley Ares-Races Inc | $11,040 | 1 | n/a |
| Electronic Frontier Foundation Inc | $11,030 | 4 | 0% |
| 801 Labs | $10,911 | 1 | 21% |
| Mid-State Amateur Radio Club | $10,750 | 1 | n/a |
| Southern Amateur Radio Union | $10,602 | 1 | n/a |
| Anchorage Amateur Radio Club | $10,517 | 1 | 16% |
| The Norwich Free Academy | $9,769 | 1 | 0% |
| Cross Roads Ham Radio Club | $9,505 | 1 | n/a |
| Boundary Amateur Radio Club Inc | $9,394 | 1 | n/a |
| Trilogy Amateur Radio Club | $9,143 | 1 | n/a |
| Voice of Idaho Amateur Radio Club Incorporated | $8,950 | 1 | n/a |
| Montrose Amateur Radio Club | $8,850 | 1 | n/a |
| University of Southern Mississippi | $8,098 | 1 | n/a |
| Northwest Missouri Ares Group | $8,000 | 1 | n/a |
| Focusing Our Resources for Community Enlightenment Inc | $8,000 | 1 | n/a |
| Regents of the University of California at San Diego | $7,547 | 1 | n/a |
| Seagull Solar | $7,509 | 1 | n/a |
| Brick Store Museum Inc | $7,275 | 1 | 1% |
| Northwest New Mexico Emcomm Group | $7,100 | 1 | n/a |
| Butler County Amateur Fm Association | $7,000 | 1 | n/a |
| Parents of 1776 Organization | $7,000 | 1 | n/a |
| Central Arkansas Radio Emergency Network | $6,995 | 1 | n/a |
| West Central Louisiana Amateur Radio Club | $6,723 | 1 | n/a |
| Illini Solar Car | $6,300 | 1 | 17% |
| Illinois Space Society | $5,766 | 1 | n/a |
| The California 4-H Foundation | $5,237 | 1 | 0% |
| Regents of the University of Michigan | $5,026 | 1 | n/a |
| Randolph Amateur Radio Club Inc | $5,000 | 1 | n/a |
| Friends of Science East Inc | $5,000 | 1 | 1% |
| The Tor Project Inc | $5,000 | 4 | 0% |
| Navajo Technical University | $5,000 | 1 | 0% |
| The Innovation School | $5,000 | 1 | 2% |
| Rio Hondo Amateur Radio Club | $4,454 | 1 | n/a |
| Jacksonville Range Association Inc | $4,400 | 1 | n/a |
| Museum of Science & Technology Foundation | $4,122 | 1 | 0% |
| Creative Commons Corporation | $4,030 | 4 | 0% |
| Pierce County Amateur Radio Communication Services | $4,000 | 1 | n/a |
| Internet Security Research Group | $4,000 | 2 | 0% |
| Ski Country Amateur Radio Club Inc | $3,561 | 1 | n/a |
| Yavapai Amateur Radio Club | $3,500 | 1 | n/a |
| Pennsylvania State University | $2,628 | 1 | n/a |
| Ham Emergency Radio Operations Inc | $2,100 | 1 | n/a |
| Khan Academy Inc | $2,046 | 2 | 0% |
| Aprs Foundation Inc | $2,044 | 2 | n/a |
| Cibola County Amateur Radio Club of New Mexico Inc | $2,000 | 1 | n/a |
| The Hack Foundation D/B/A Hack Club | $2,000 | 2 | 0% |
| Bradley University | $1,950 | 1 | 0% |
| Sangamon Valley Radio Club Inc | $1,824 | 1 | n/a |
| Intrepid-Dx Group | $1,500 | 1 | 2% |
| Friends of the West Bend Community Memorial Library Inc | $1,400 | 1 | n/a |
| Pavek Museum | $1,033 | 1 | n/a |
| Young Ladies Radio League Inc | $1,000 | 1 | n/a |
| Signal Technology Foundation | $1,000 | 1 | n/a |
| Techsoup Global | $1,000 | 1 | 0% |
| Apache Software Foundation | $1,000 | 1 | 0% |
| California Historical Radio Society | $1,000 | 1 | n/a |
| Every Org | $1,000 | 1 | 0% |
| Python Software Foundation | $1,000 | 1 | 0% |
| Museum of Applied Computer Technology | $1,000 | 1 | n/a |
| The Mentor Project Inc | $1,000 | 1 | 1% |
| Electronic Privacy Information Center | $1,000 | 1 | 0% |
What it could do for these grantees
Plus 143 recipients with no EIN on record ($8.0M), not named here.
Where it is load-bearing
Amateur Radio Digital Communications supplied at least a quarter of the budget for 20 of its grantees at some point. The chart plots its 92 largest grantees; load-bearing ones sit top left.
Tap a dot to name the grantee.
How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 92.
Co-funders
Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.
The Yasme FoundationWA13.6× affinity4 shared granteesties to 1 of 11Hover any node to trace its alignments.Compare side by side →
Open a dossier: The Yasme Foundation · Arrl Foundation Inc · Internet Society Foundation · Gates Foundation · Texas Instruments Foundation · The Ford Foundation · The William & Flora Hewlett Foundation · Bright Funds Foundation · Marin Community Foundation · The Yelp Foundation · Silicon Valley Community Foundation · John D and Catherine T Macarthur Foundation
How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.
Compare Amateur Radio Digital Communications with peer funders
About Amateur Radio Digital Communications
- How much does Amateur Radio Digital Communications give?
- Amateur Radio Digital Communications reported 111 grants totaling $3,467,865 in its FY2025 IRS filing. It funded between 2 and 91 organizations a year over FY2019 to FY2024.
- What does Amateur Radio Digital Communications fund?
- By grant dollars over FY2019 to FY2025, its largest causes are Science & Tech (50%), Education (18%), Arts & Culture (8%).
- Who are Amateur Radio Digital Communications's largest grantees?
- By total granted over FY2019 to FY2025: Arrl Foundation Inc ($4.6M), Software Freedom Conservancy Inc ($2.0M), Amateur Radio on the International Space Station ($1.3M).
- Does Amateur Radio Digital Communications fund new organizations?
- In FY2024, 73% of the organizations it funded were first-time grantees.
- Does Amateur Radio Digital Communications accept unsolicited applications?
- Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.
- Which funders back the same organizations as Amateur Radio Digital Communications?
- Its strongest co-funders, measured against what their size predicts, include The Yasme Foundation, Arrl Foundation Inc, Internet Society Foundation.
- Where is Amateur Radio Digital Communications based?
- Amateur Radio Digital Communications is based in CA.
Play a game based on Amateur Radio Digital Communications’ filings →
More from the funding graph
The unnamed billions
grants reported with no recipient in the public record
The regranting layer
51% of grant dollars land in the regranting layer
The DAF merry-go-round
$9.7B circulates between donor-advised funds
The endowment market
who holds foundation money, and what just moved
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home