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Mesa Standards Alliance

EIN 32-0451881 · San Francisco, CA

Public records raise at least one point you should look into before giving.

LegitimacyCautionRegistration and standingFinancial healthNot ratedToo small or too little detailGovernanceNot ratedThe short tax form does not cover thisImpact evidenceDescribes programsHow well its results are evidenced

What it says it does

PROMOTE ENERGY STORAGE INDUSTRY THROUGH OPEN STANDARDS

Income
$87,000
Spending
$88,865

Source: Form 990EZ for the year ending December 31, 2025, filed with the Internal Revenue Service. How we rate

Financial health

We do not score finances when yearly spending is very small or the return has too little detail. The ratios stop meaning much at that size.

Source: Form 990EZ for the year ending December 31, 2025, filed with the Internal Revenue Service. How we rate

Governance

This organization files the short tax form, which does not ask about boards, policies or audits. That is normal for a small charity and is not a mark against it.

Source: Form 990EZ for the year ending December 31, 2025, filed with the Internal Revenue Service. 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 (1)
  1. $64,980 spent. MESA HAS DEVELOPED TWO SPECIFICATIONS: MESA-DER AND MESA-DEVICE/SUN SPEC ENERGY STORAGE MODEL.DER SPECIFICATIONS ADDRESS HOW ENERGY STORAGE SYSTEMS, MICROGRIDS, AGGREGATORS AND FACILITY ENERGY MANAGEMENT SYSTEMS (FDEMS) COMMUNICATE WITH THE UTILITY'S GRID CONTROL (SCADA/DMS) THAT MONITOR AND CONTROL GRID ASSETS. MESA RELEASED THE FIRST DRAFT OF THE MESA-DER SPECIFICATION (FORMERLUY MESA ESS) AT THE END OF 2018. MESA UPDATES THIS SPECIFICATION PERIODICALLY AND THIS WORK IS NOW BEING INCORPORATED INTO THE IEEE 1815.2 STANDARD. MESA HAS ALSO DEVELOPED A PROGRAM FOR MESA-DER/IEEE 1815.2 TESTING AND CERTIFICATION.MESA-DEVICE SPECIFICATIONS/SUN SPEC ENERGY STORAGE MODEL ADDRESSES HOW ENERGY STORAGE COMPONENTS OF AN ENERGY STORAGE SYSTEM ARE PACKAGED AND ARRANGED, ELECTRICALLY CONNECTED AND ABLE TO COMMUNICATE WITH EACH OTHER AND OTHER OPERATIONAL COMPONENTS. MESA-DEVICE SPECIFICATIONS ARE BUILT ON THE MODBUS PROTOCOL. MESA AND SUN SPEC ALLIANCE RELEASED THE FIRST DRAFT ENERGY STORAGE SYSTEM SPECIFICATION, MESA-DEVICE (REFERRED TO AS THE ENERGY STORAGE MODEL SPECIFICATION BY SUN SPEC), FOR PUBLIC REVIEW AND ADOPTION IN OCTOBER 2014 AND UPDATES THIS SPECIFICATION PERIODICALLY. MESA CREATED THE TESTING AND CERTIFICATION PROGRAM WITH SUN SPEC IN 2024.

Source: Form 990EZ for the year ending December 31, 2025, filed with the Internal Revenue Service. 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)(6) business league.

    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 October 13, 2026.

  3. Are donations tax-deductible? Caution.

    The IRS master file records contributions to this 501(c)(6) business league as not deductible.

    Source: Exempt Organizations Business Master File, 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 December 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 July 2015.

    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 October 21, 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.