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Governance Register
US nonprofit · EIN 300044044 · Menlo Park, CAiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 300044044) - NTEE activity code, address.Board and officers IRS Form 990 annual filings, Part VII (directors, trustees, officers, key employees), read year by year to observe time served.Latest return IRS Form 990 series e-file data - 990 for the year to 30 June 2025: assets, liabilities, staff, website, telephone, pay.Finances by year IRS Form 990 e-file data - total revenue and total expenses by tax year.Renewal outlook Computed by Governance Register from the observed filing history and filed revenue. Not a statement that the organisation is recruiting.Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Menlo Atherton Athletic Boosters' network

3 people2 organisationsi3 people and 2 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (3). Violet dotted lines (2) are likely: the same full name sits on the current board of another organisation in the same register and region. Form 990 filings give names without a person identifier; SEC insider filings carry a CIK. It may be a different person.

The board

3 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations in the tables. The network map shows same-name matches as likely links only, never as confirmed.Time served and departures are observed across annual filings. Observed time served is a lower bound - a member may have joined before the first year on record. The organisation reported 3 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Christine TonsfeldtTreasurer2021
5 yrs
Scott LohmannPresident2021
5 yrs
Scott SchererCompany secretary2021
5 yrs
Under 5 years5 to 6 years6 years or more

Officers and senior leadership

12 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Amy McLanahanFin Secretary2018
Brian RobertsCo-Presidentsince 2022
Christine TonsfeldtTreasurersince 2018
Ellen LongCompany secretarysince 2022
Hilary HolmquistCompany secretarysince 2019
John BriggsPresidentsince 2018
Janelle McCombsPresidentsince 2022
Mark BakerFin Secretarysince 2019
Michael SantoroTreasurersince 2022
Scott SchererCo-President2020
Tim KunihiroCo-President2020
Valerie AmbwaniParliamentarian2018

Pay and hours

year to 30 June 2025iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.
NameTitle as filedHours a weekPay from the organisationRelated organisationsOther
Janelle McCombsPresident5$0
Michael SantoroTreasurer5$0
Ellen LongSecretary5$0

No pay was reported for anyone in Part VII on this return.

About

Legal name
Menlo Atherton Athletic Boosters
EIN
300044044
Address
Po Box 1288, Menlo Park, CA, 94026-1288
State
California
Mission
Menlo atherton athletic boosters support the sport programs at menlo-atherton high school, a public high school in san mateo county, california. More than 600 students participate in sport programs at menlo-atherton high school. (as filed on the Form 990)
Activity (NTEE)
N60 Recreation and sports
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Recreation & Sports
Size band
4 (IRS master file code)
Formed
2002
IRS ruling date
1 February 2003
Status
Code 01 (unconditional exemption)
Form 990 filings on record
1, latest 2021
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥5years on the filingsChristine Tonsfeldt
≥5years on the filingsScott Lohmann
≥5years on the filingsScott Scherer

Latest return

year to 30 June 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 30 June 2025. US dollars, as filed.
Total assets
$271k
Total liabilities
$0
Net assets or fund balances
$271k
Contributions and grants received
$192k
Program service revenue
$0
Employees
0
Volunteers
75

Filed finances

2 yearsiTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2024$236k$145k$91k
2023$205k$220kDeficit $15k

As filed on the IRS Form 990. US dollars.