Skip to content
Nonprofiteer
← All organizations

CATALYST4 INC

EIN 87-3323607 PALO ALTO, CA

Browse the largest nonprofits in California

Revenue 2024
$48,489,989
Expenses 2024
$80,949,362

Program services were 97.1% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
04
NTEE code
C01
Classification
3000
Street
555 BRYANT STREET 376

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Other organizations at this address

2 other organizations in the IRS Business Master File list the same street address. matched by us

We match the street line and ZIP code as the IRS gives them, ignoring case and outer spaces and nothing else, so "AVE" and "AVENUE" count as different streets and this list can miss some. A shared address can mean related organizations or a shared office, but it can also be a registered agent, a mail drop or a service provider holding mail for unrelated clients. It is not, by itself, evidence that two organizations are connected.

Mission and programs · 2024

Mission

TO FOSTER, SUPPORT, PROMOTE AND CONDUCT ACTIVITIES DESIGNED TO BENEFIT AND IMPROVE THE ENVIRONMENT AND GLOBAL HEALTH.

Activities or mission (Part I)

FOSTER, SUPPORT, AND CONDUCT ACTIVITIES TO IMPROVE THE ENVIRONMENT AND GLOBAL HEALTH.

  • SUPPORT FOR INITIATIVES AND EFFORTS THAT ADDRESS CLIMATE AND ENVIRONMENTAL CHALLENGES, FOCUSING ON REDUCING EMISSIONS, ADVANCING CLEAN ENERGY SOLUTIONS, AND PROMOTING ENVIRONMENTAL SUSTAINABILITY AND RESILIENCE TO CLIMATE IMPACTS.

    Expenses $41,733,204 · Grants $40,875,060

  • SUPPORT FOR RESEARCH AND DEVELOPMENT RELATED TO CENTRAL NERVOUS SYSTEM ("CNS") NEUROLOGICAL DISEASES/DISORDERS (SUCH AS PARKINSON'S, ALZHEIMER'S, ALS, AUTISM, DEMENTIA, BIPOLAR, EPILEPSY, AND NEUROPATHIC PAIN).

    Expenses $36,855,653 · Grants $3,150,000

As filed on the 2024 return.

Officers and directors · 2024

As listed in Part VII of the 2024 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • Robert Brown

    PRESIDENT/DIRECTOR

    Total calculated
    $0
    Hours/week
    10

  • Mark Vorsatz

    DIRECTOR

    Total calculated
    $0
    Hours/week
    0.8

  • Ekemini Riley

    DIRECTOR

    Total calculated
    $0
    Hours/week
    0.5

  • Tara Farnsworth

    SECRETARY & TREASURER

    Total calculated
    $0
    Hours/week
    1

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. Earlier years are each on their own filing page.

Filings

  • 2024
    Revenue
    $48,489,989
    Expenses
    $80,949,362
    Contributions
    $0
    Grants paid
    $44,025,060
  • 2023
    Revenue
    $700,829,467
    Expenses
    $88,039,993
    Contributions
    $613,833,518
    Grants paid
    $84,029,854
  • 2022
    Revenue
    $3,353,990
    Expenses
    $13,097,520
    Contributions
    $0
    Grants paid
    $12,700,000

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Other returns filed

  • 2021 · 990

    Revenue
    $471,952,104
    Expenses
    $93,759
    Assets (EOY)
    $469,174,402

Nonprofiteer parses Forms 990, 990-EZ and 990-PF, in a window of recent tax years. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all.

Grants made

The 10 largest by cash amount. The API serves every itemized grant.

Where these grants went next →

Grants received

No itemized grant names this organization as a recipient. Only grants over $5,000 are itemized, and only by filers of the full Form 990.

Taxable family

From Schedule R Parts I, III and IV: entities that legally are the filer, and taxable partnerships, corporations and trusts it is related to. These record ownership and control, not shared board members or money.

Disregarded entities on its 2024 return

  • CURARE CNS LLC

    INVESTMENT · DE · income $0 · assets $15,317

Related partnerships on its 2024 return

  • THE COLUMN GROUP-NEURO LP

    EXCLUDED · INVESTMENT · CA · 74.25% owned · share of income $249,964 · share of assets $60,249,547

  • NEXUS NEUROTECH FUND I LP

    EXCLUDED · INVESTMENT · CA · 94.82% owned · share of income $4,094 · share of assets $34,008,004

  • HOMECOMING CAPITAL LLC

    EXCLUDED · INVESTMENT · CA · 100% owned · share of income $19,574,819 · share of assets $17,440,164

  • NEXUS NEUROTECH SPV I LP

    EXCLUDED · INVESTMENT · CA · 94.5% owned · share of assets $7,673,416

  • NEXUS NEUROTECH SPV II LP

    EXCLUDED · INVESTMENT · CA · 94.5% owned · share of assets $4,814,919

  • NEXUS NEUROTECH SPV III LP

    EXCLUDED · INVESTMENT · CA · 95% owned · share of assets $14,340,487

  • THE COLUMN GROUP-NEURO II LP

    EXCLUDED · INVESTMENT · CA · 74.94% owned · share of assets $401,748

Related corporations and trusts on its 2024 return

  • MAPLIGHT THERAPEUTICS INC

    C · BIOPHARMACEUTICAL · DE · 55.4% owned · share of income $2,972,764 · share of assets $75,851,464 · controlled entity

  • BRIDGE ANALYTICS DATA AND SCIENCE SERVICES INC

    C · DATA ANALYSIS · DE · 100% owned · share of assets $76,085 · controlled entity

  • SONEIRA INC PBC

    C · BIOPHARMACEUTICAL · DE · 56.05% owned · share of income $69,301 · share of assets $1,852,501 · controlled entity

  • STELLAROMICS INC

    C · BIOPHARMACEUTICAL · DE · 75.09% owned · share of income $1,206,535 · share of assets $26,716,800 · controlled entity

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Not present in the most recent drop.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.

What this page reflects

The registration facts above come from the IRS Business Master File published 13 October 2026 and read 1 November 2026, for every organization at once. Returns through tax year 2024, the newest we have parsed for this organization.