California · Nonprofit
EXAQUEST CARBON
EXAQUEST CARBON (California) receives grants from 2 organizations whose IRS filings report $50,069 to it, the largest being The Sky Foundation Inc ($50,000). 1 of them have funded it in more than one year.
- Revenue FY2023
- $251
- Funders on record
- 2
- Grants received
- $50k
- Net assets
- $12k
What Exaquest Carbon does
Mission
To conduct scientific research within the meaning of section 501(c)(3)
As stated on its FY2023 Form 990-EZ.
Programs
Program Service #1 = Biomass storage research. 1ST PARAGRAPH: Exaquest Carbon has continued the wood chip drying and storage experiment on the property of Dr. Arnold Forman in Nevada City, CA. Since June 2022, the tank has been capped, and we have been collecting data showing that the dry wood inside the container will remain dry indefinitely without decomposing. (No significant dry matter loss has been observed during the entire experiment.) This data collection is ongoing. 2ND PARAGRAPH: As of 11/1/2022, Exaquest's lease of approximately 1500 square feet of light industrial workspace in Alameda, CA terminated, and Tau Carbon Inc. began leasing the same workspace. Tau Carbon has allowed Exaquest Carbon to continue collecting data on experiments that were ongoing in the Alameda workspace when the lease was taken over by Tau Carbon. These experiments include one 55-gallon drum containing dried wood chips and one 55-gallon drum containing a mixture of wood chips and larger wood chunks. Those two drums are still being weighed regularly, and we continue to observe no dry matter loss or other decomposition in the stored wood. 3RD PARAGRAPH: At the end of June 2022, Exaquest launched an…
$10,851 spent97% of program spendingProgram Service #2 = Outreach to inform the public and other interested groups about the potential for long-term biomass storage to remove CO2 from the atmosphere. Exaquest Carbon's directors and officers engaged in informational outreach activities over the course of the fiscal year that ended on June 30, 2023. In January 2023, Exaquest director and CTO Dr. Amber Janda published a report on the Exaquest Carbon website titled "Wood drying and preservation research results for January 2022-present." On June 28, 2023, Dr. Janda presented the results from her January 2023 report to the Puro.earth Advisory Board as part of its consideration of the new "Terrestrial Storage of Biomass" methodology for carbon removal. Finally, Dr. Janda and Exaquest President John Lin regularly posted updates about Exaquest's work - including Dr. Janda's January 2023 research report - on social media (LinkedIn, Facebook, Instagram, and Twitter) and on climate-focused Slack groups including My Climate Journey, AirMiners, and Work on Climate. All of these outreach activities drove traffic to Exaquest's website (www.exaquest.org), which provides additional information to the public about the potential for…
$358 spent3% of program spending
The 2 programs described on its FY2022 Form 990-EZ. Program spending in total: $11,209.
The organization over time
Each line starts at 100 in 2021, so what you read is the shape rather than the size: 150 means half as much again as 2021, 50 means half. The number beside each label in the key is where it ended. The shaded band is where the middle 50% of its peers' revenue would sit, given their growth.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2021 to 2022, from $46k to $26k (−44%).
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
100% of EXAQUEST CARBON’s revenue is contributions — more donation-reliant than the typical peer (89% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 2 of the last 3 reported years ran a deficit.
Who funds it, year by year
2021 → 2023: the base narrowed from 2 funders to 1 funder, grant income fell $50k → $25.
1 of 2 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 0% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
From the IRS filings of EXAQUEST CARBON’s funders (the co-funder graph). Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How concentrated its funding is
EXAQUEST CARBON leans on a few funders — its largest provides 100% of grant income and the top three 100%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
Largest funder’s share by year: 2021 100% · 2022 100% · 2023 100% — broadly stable.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Where its funders are
EXAQUEST CARBON draws 100% of its grant income from funders outside California, across 1 state in all.
Funder states come from each funder’s own filing. $69 arriving through sponsors registered in 1 state is excluded from the map and the split above: a sponsor holds money on a donor’s behalf, so its registered address would place those dollars somewhere no donor need ever have been. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Against its field
EXAQUEST CARBON's revenue fell 100% between 2021 and 2023.
this organization peer median middle 50% of peers· 626 science & tech nonprofits under $100k, FY2023
Organizations like EXAQUEST CARBON
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.
In California
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Footprint & structure
Files a return copy in 12 states
Screen this organization
A dated, signed PDF of the compliance screen for EXAQUEST CARBON: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds EXAQUEST CARBON?
- EXAQUEST CARBON (California) receives grants from 2 organizations whose IRS filings report $50,069 to it, the largest being The Sky Foundation Inc ($50,000). 1 of them have funded it in more than one year.
- How many funders does EXAQUEST CARBON have?
- IRS filings report 2 organizations giving $50,069 in grants to EXAQUEST CARBON, 1 of which have funded it in more than one year.
- Who is the largest funder of EXAQUEST CARBON?
- The Sky Foundation Inc is the largest funder on record, with $50,000 in grants. The full list of funders is on this page.
- How can an organization like EXAQUEST CARBON find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in California. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
Play a game about who funds Exaquest Carbon →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2023 (financials across 2021–2023), and the filings of 2 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 14, 2026. What this page cannot tell you · view filing