Openaq Inc
Only null% goes to programs Strong reserves Growing revenue
Openaq Inc is a 501(c)(3) organization based in Washington, District of Columbia, registered in 2018, with $747,665 in FY2025 revenue. CharityIndex grades it B.
818 18th St Nw Ste 810 Pmb, Washington, DC, 20006 EIN 47-5324172 Since 2018
Revenue (FY2025)
$748K
▼ 2.2% vs prior year
Environment median: $250K
Expenses (FY2025)
$679K
Net assets
$543K
Employees
—
CharityIndex rating
One independent A+ to F grade from four published criteria, each scored separately from IRS filings and combined by weight.
B
★★★★
Rated on 2 of 4 criteria — the rest aren't reported in this filing type.
Held down by its weakest criterion — a strong score on one criterion can't hide a weak one.
How the rating works →—Program efficiency40% of the ratingNo expense breakdown in filings
Measures how much of every dollar spent actually reaches programs, plus what it costs to raise $100 of donations. The worse of the two measures sets the letter (85%+ to programs is an A; under $15 to raise $100 is an A), averaged over the three most recent filings. Not scored for Openaq Inc— this filing type doesn't report it, and the rating simply skips it (never counts it against the organization). See the exact thresholds →
AFinancial health25% of the rating10 mo reserves · +9% margin
Measures whether the organization is built to last: how many months its reserves would cover expenses (3+ months earns an A-range score, but hoarding 5+ years of budget is capped) and whether it runs a surplus or a deficit. For Openaq Inc: 10 mo reserves · +9% margin earns a A on this criterion. See the exact thresholds →
—Governance25% of the ratingNot reported in this filing type
Checks how the organization is run, from its own Form 990: an independent board majority, a board of five or more, conflict-of-interest, whistleblower and document-retention policies, and independently audited financials. The share of disclosed checks that pass sets the letter. Not scored for Openaq Inc— this filing type doesn't report it, and the rating simply skips it (never counts it against the organization). See the exact thresholds →
CTransparency10% of the rating2 of 5 disclosure signals
Counts five disclosure signals: a recent filing, a mission statement, program descriptions, a listed website, and the full expense breakdown. More disclosure, better letter. For Openaq Inc: 2 of 5 disclosure signals earns a C on this criterion. See the exact thresholds →
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Contact & location
- Address
- 818 18th St Nw Ste 810 Pmb, Washington, DC, 20006
- City
- Washington
- State
- District of Columbia
- Category
- Environment
- Subcategory
- Pollution Abatement & Control
- Website
- …
Financial trends
Revenue grew from $141K (FY2018) to $748K (FY2025) across 8 reported years.
Financial snapshot
Financial health & position (FY2025)
Liabilities $8,518Net assets $543K
Operating margin
9.2%
Revenue exceeded expenses in the latest fiscal year.
Total assets
$551K
Total liabilities
$8,518
Net assets
$543K
Financials by year
| Fiscal year | Revenue | Expenses | Net assets | Total assets | Form |
|---|---|---|---|---|---|
| 2025 | $747,665▼2.2% | $678,661▲0.8% | $542,517▲14.6% | $551,035▼18.8% | 990 |
| 2024 | $764,306▲11.2% | $673,591▼6.4% | $473,513▲23.7% | $678,235▲30.8% | 990 |
| 2023 | $687,491▲6.0% | $719,548▲17.2% | $382,798▼7.7% | $518,685▼15.7% | 990 |
| 2022 | $648,318▲15.8% | $613,723▲9.5% | $414,855▲9.1% | $614,928▲8.2% | 990 |
| 2021 | $559,682 | $560,530▲23.3% | $380,260▼0.2% | $568,080▼9.3% | 990 |
| 2020 | $559,493▲26.4% | $454,479▲135% | $381,108▲40.6% | $626,127▲126% | 990 |
| 2019 | $442,782▲214% | $193,531▲62.1% | $270,962▲1148% | $276,924▲1176% | 990 |
| 2018 | $141,101 | $119,391 | $21,710 | $21,710 | 990EZ |
Original Form 990 PDFs (the Form column) are served by ProPublica Nonprofit Explorer, as filed with the IRS. Create a free account to download the CSV report.
Grants received · $1.0M total
17 grants to Openaq Inc totaling $1.0M, reported by foundations on their Schedule I filings — showing the 15 most recent.
| Grantmaker | Purpose | Year | Amount |
|---|---|---|---|
| American Online Giving Foundation Inc | General support | 2024 | $15,767 |
| World Resources Institute | Promote envir sustainable transport solutions | 2023 | $15,000 |
| Fidelity Investments Charitable Gift Fund | For grant recipient's exempt purposes | 2023 | $15,000 |
| Tides Foundation | Healthy individuals and communities | 2022 | $50,000 |
| Tides Foundation | Healthy individuals and communities | 2022 | $50,000 |
| World Resources Institute | Promote envir sustainable transport solutions | 2022 | $15,000 |
| Fidelity Investments Charitable Gift Fund | For grant recipient's exempt purposes | 2022 | $15,000 |
| World Resources Institute | Promote envir sustainable transport solutions | 2021 | $111,200 |
| Fidelity Investments Charitable Gift Fund | For grant recipient's exempt purposes | 2021 | $15,000 |
| Fidelity Investments Charitable Gift Fund | For grant recipient's exempt purposes | 2021 | $15,000 |
| Climateworks Foundation | Project support | 2020 | $150,000 |
| Environmental Defense Fund Incorporated | Ocs | 2020 | $101,375 |
| Fidelity Investments Charitable Gift Fund | For grant recipient's exempt purposes | 2020 | $8,500 |
| Environmental Defense Fund Incorporated | Ocs | 2019 | $173,000 |
| Climateworks Foundation | Program support | 2019 | $150,000 |
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Frequently asked questions
- Is Openaq Inc a legitimate nonprofit?
- Yes. Openaq Inc is a 501(c)(3) organization registered with the U.S. Internal Revenue Service under EIN 47-5324172, based in Washington, District of Columbia. Donations are tax-deductible.
- What is Openaq Inc's EIN?
- Openaq Inc's Employer Identification Number (EIN) is 47-5324172.
- How much revenue does Openaq Inc report?
- Openaq Inc reported $747,665 in total revenue on its fiscal year 2025 IRS Form 990 filing.
- What financial grade does Openaq Inc have?
- CharityIndex grades Openaq Inc B, based on financial health (reserves and operating margin).
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Data for Openaq Inc (EIN 47-5324172) comes from the IRS Business Master File and e-filed Form 990 returns, via CharityIndex. Figures reflect what the organization reported to the IRS for each fiscal year.