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Institute for Governance and Sustainable Development Inc

EIN 81-0616238 · Washington, DC

Public records show a registered, tax-exempt organization in good standing.

LegitimacyPassesRegistration and standingFinancial healthStrong93 out of 100GovernanceStrong100 out of 100Impact evidenceDescribes programsHow well its results are evidenced

What it says it does

IGSD'S MISSION IS TO PROMOTE FAST CLIMATE MITIGATION TO SLOW NEAR-TERM WARMING AND SELF-PROPAGATING CLIMATE FEEDBACKS, AVOID OR AT LEAST DELAY CATASTROPHIC CLIMATE AND SOCIETAL TIPPING POINTS, AND LIMIT GLOBAL TEMPERATURES TO 1.5 COR AT LEAST KEEP THIS TEMPERATURE GUARDRAIL IN SIGHT AND LIMIT OVERSHOOT.

Income
$13.0 million
Spending
$9.3 million
Spent on programs
99%
Reserves
6.3 months of spending
Largest source of income
donations and private grants, 99%
Employees
22
Volunteers
6
Highest pay
$330,241, president

Source: Form 990 for the year ending June 30, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Financial health

Strong: 93 out of 100. Higher than 86% of charities in its peer group (international, $10m to $100m).

  • Reserves

    28 of 35

    Spendable reserves would cover 6.3 months of spending.

  • Debt

    20 of 20

    It owes 7% of what it owns.

  • Living within its means

    15 of 15

    Income exceeded spending by 29% of income.

  • Income trend

    15 of 15

    Income rose 7% on the year before.

  • Spending floor

    15 of 15

    99% of spending went to programs and raising each dollar of donations cost 0 cents.

Source: Form 990 for the year ending June 30, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Governance

Strong: 100 out of 100. Higher than 35% of charities in its peer group (international, $10m to $100m).

  • Independent board

    25 of 25

    6 of 7 voting board members are independent.

  • Conflict of interest policy

    15 of 15

    Has a written conflict of interest policy.

  • Whistleblower policy

    8 of 8

    Has a written whistleblower policy.

  • Record keeping policy

    7 of 7

    Has a written policy on keeping and destroying records.

  • Board minutes

    5 of 5

    Keeps minutes of board meetings.

  • Board sees the tax return

    10 of 10

    Gave the board a copy of this return before filing it.

  • Pay set independently

    5 of 5

    Sets its chief executive's pay through independent review and comparison.

  • Independent check of accounts

    15 of 15

    Its accounts were audited by an independent accountant.

  • No reported misuse

    10 of 10

    Reports no diversion of assets, excess benefits or loans to insiders.

Source: Form 990 for the year ending June 30, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Impact evidence

Describes programs. Its tax return describes what it does but we have found no measurable results in it.

Programs described in its return (2)
  1. $7.8 million spent. SUSTAINABLE DEVELOPMENTTHE INSTITUTE WORK TO ENSURE FAST CUTS TO THE NON-CARBON DIOXIDE CLIMATE POLLUTANTS AND OTHER FAST CLIMATE MITIGATION STRATEGIES TO SLOW NEAR-TERM WARMING AND SELF-AMPLIFYING CLIMATE FEEDBACKS, AVOID OR AT LEAST DELAY CATASTROPHIC TIPPING POINTS, AND LIMIT GLOBAL TEMPERATURE RISE.
  2. $1.4 million spent. INTERNATIONAL CLIMATE LITIGATIONTHE FAST-ACTION CLIMATE MITIGATION CAMPAIGN - TO PROMOTE NON-CO2 STRATEGIES THAT WILL RESULT IN SIGNIFICANT EMISSIONS REDUCTIONS IN THE NEAR TERM AS WELL AS TO COMPLEMENT CUTS IN CO2 WHICH ARE ESSENTIAL IN THE LONG-TERM.

Source: Form 990 for the year ending June 30, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Legitimacy checks

  1. Is it registered with the IRS? Passed.

    Listed in the IRS master file of tax-exempt organizations as a 501(c)(3) charitable organization.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 2026.

  2. Has the IRS revoked its tax-exempt status? Passed.

    Not on the IRS automatic revocation list.

    Source: Automatic revocation of exemption list, Internal Revenue Service, file dated November 6, 2026.

  3. Are donations tax-deductible? Passed.

    On the IRS list of organizations eligible to receive tax-deductible contributions.

    Source: Publication 78 data: organizations eligible for tax-deductible contributions, Internal Revenue Service, file dated October 13, 2026.

  4. Is it keeping up with its IRS filings? Passed.

    Most recent return on file covers the year ending June 2025.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 2026.

  5. How long has it been tax-exempt? Passed.

    Recognized by the IRS since May 2004.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 2026.

  6. Is it in good standing with state regulators? Passed.

    Not on California's list of charities barred from soliciting. Other states are not yet checked.

    Source: May Not Operate or Solicit for Charitable Purposes list, California Attorney General, Registry of Charities and Fundraisers, file dated November 4, 2026.

Ratings and checks are our reading of public records, using the published method. They are not a statement about anyone's honesty. If you work for this organization, you can send corrections or results, confirm you want gifts through Veridonate, or ask to be removed from giving.