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Nonprofit · EIN 82-0745595

GBX GLOBAL

Tax-exempt · MILL VALLEY, CA 94941

Financials

$335K$280K2024$561K$348K2025
Revenue Expenses · by fiscal year end
Financials of GBX GLOBAL by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990$560,814$348,273$212,541$561,656$0$561,656
December 31, 2024990$335,079$279,737$55,342$349,115$0$349,115
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$499,746
Membership dues
$188,018
Program service revenue
$50,200
Investment income
$10,868
Other revenue
$0

Expenses

Grants and similar amounts paid
$0
Salaries, compensation and benefits (total)
$0
Professional fundraising fees
$0
Travel
$23,471
Depreciation
$711
Program services (functional)
$310,156
Management and general (functional)
$37,406

Balance sheet and other

Total assets, start of year
$349,115
Total assets, end of year
$561,656
Total liabilities, end of year
$0
Net assets, end of year
$561,656
Land, buildings and equipment
$1,007
Net assets without donor restrictions
$561,656
Gross receipts
$560,814
Employees
0
Volunteers
0
Year formed
2017
State of legal domicile
CA

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended December 31, 2025, highest compensation first.

NameTitleHours / weekCompensation
MARK CHARKINEXECUTIVE DIRECTOR
Trustee or director, Officer
20$62,215
JOE WHITEBOARD DIRECTOR
Trustee or director
0.25$0
JULIAN GREENCO-CHAIR
Trustee or director, Officer
0.25$0
CAL HENDERSONBOARD DIRECTOR
Trustee or director
0.25$0
ELEANOR KILOHBOARD DIRECTOR
Trustee or director
0.25$0
JAMES DA COSTABOARD DIRECTOR
Trustee or director
0.25$0
SERENA DAYALBOARD DIRECTOR
Trustee or director
0.25$0
ANDY MCLOUGHLINBOARD DIRECTOR
Trustee or director
0.25$0
SAM CHAUDHARYBOARD DIRECTOR
Trustee or director
0.25$0
KATHRYN PARSONSCO-CHAIR
Trustee or director, Officer
0.25$0
ALASTAIR PATERSONBOARD DIRECTOR
Trustee or director
0.25$0
JAMIE QUINNBOARD DIRECTOR
Trustee or director
0.25$0
TIM ROPERBOARD DIRECTOR
Trustee or director
0.25$0
HUSAYN KASSAIBOARD DIRECTOR
Trustee or director
0.25$0
990 for the year ended December 31, 2024: 14 people
NameTitleHours / weekCompensationFrom related orgs
MARK CHARKINEXECUTIVE DIRECTOR
Trustee or director, Officer
20$0$6,000
JOE WHITEBoard Director
Trustee or director
0.25$0$0
JULIAN GREENCO-CHAIR
Trustee or director, Officer
0.25$0$0
CAL HENDERSONBOARD DIRECTOR
Trustee or director
0.25$0$0
TAMMY SANDHUBOARD DIRECTOR
Trustee or director
0.25$0$0
JULIAN GAYBOARD DIRECTOR
Trustee or director
0.25$0$0
KATE DUTTONBOARD DIRECTOR
Trustee or director
0.25$0$0
SERENA DAYALBOARD DIRECTOR
Trustee or director
0.25$0$0
ANDY MCLOUGHLINBOARD DIRECTOR
Trustee or director
0.25$0$0
SAM CHAUDHARYBOARD DIRECTOR
Trustee or director
0.25$0$0
KATHRYN PARSONSCO-CHAIR
Trustee or director, Officer
0.25$0$0
ALASTAIR PATERSONBOARD DIRECTOR
Trustee or director
0.25$0$0
JAMIE QUINNBOARD DIRECTOR
Trustee or director
0.25$0$0
TIM ROPERBOARD DIRECTOR
Trustee or director
0.25$0$0

Address and contacts

Address (IRS master file)
250 HILLSIDE AVE, MILL VALLEY, CA 94941-1106
In care of
% MARK CHARKIN
Principal officer (990 for 2025)
MARK CHARKIN, 250 HILLSIDE AVE, MILL VALLEY, CA 94941
Signed the 990
MARK CHARKIN, EXECUTIVE DIRECTOR
Phone
(310) 804-0951
Return prepared by
TAXSTUDIO LTD

Mission

SEE SCHEDULE O

990 for the year ended December 31, 2025

Program accomplishments

  • SEE SCHEDULE O
    Expenses $124,062
  • SEE SCHEDULE O
    Expenses $186,094

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026990 on file
2024December 31, 2024May 15, 2025990 on file
2023December 31, 2023May 15, 2024990 on file

IRS record

EIN
82-0745595
Tax-exempt status
501(c)(6): Business league or chamber of commerce
Donations deductible
No
Exempt since
2018
Accounting year ends
December
Files
Form 990 or 990-EZ
Assets (IRS master file)
$561,656
Income (IRS master file)
$560,814

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025–––IRS
990December 2024–––IRS
990December 2023$421,070$271,819$298,773IRS
990December 2022$277,172$245,819$149,522IRS
990-EZDecember 2021–––IRS
990December 2020–––IRS
990December 2018–––IRS
990-EZDecember 2017–––IRS

990-N: the IRS publishes only the latest e-Postcard per organization; earlier years appear here as 990.tax collects the monthly files. 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS.

Questions about GBX GLOBAL

What is the EIN of GBX GLOBAL?
The employer identification number (EIN) of GBX GLOBAL is 82-0745595.
Is GBX GLOBAL tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(6) since 2018.
Are donations to GBX GLOBAL tax-deductible?
No. The IRS master file says contributions to it are not deductible.
Which annual return does GBX GLOBAL file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of GBX GLOBAL due?
The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did GBX GLOBAL last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended December 2025.
Who is the principal officer of GBX GLOBAL?
The 990 for the year ended December 31, 2025 names MARK CHARKIN.
Who are the officers and directors of GBX GLOBAL?
The 990 for the year ended December 31, 2025 lists 14 people; 1 received compensation from the organization, the highest $62,215 (MARK CHARKIN, EXECUTIVE DIRECTOR).
How much revenue does GBX GLOBAL have?
On its 990 for the year ended December 31, 2025 it reported revenue of $560,814, expenses of $348,273 and total assets of $561,656 at year end.

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