licensed child care center
ALL FIVE
Menlo Park, CA
Youth and community nonprofits / California / Menlo Park
Amateur sports competitions
South Peninsula Water Polo Foundation
A tax-exempt nonprofit in Menlo Park, California, classified by the IRS as amateur sports competitions. For the year ending May 2022 it reported $105,611 in revenue and $94,391 in expenses.
What it says it does
“The south peninsula water polo foundation(sopen) was founded to teach and promote the sport of water polo in the california high school/middle school communities of san mateo and santa clara counties. Any youth in the appropriate age group may apply to join one of the training programs. Sopen is committed to offering a high quality training program that is fun and challenging in a positive...”From the organization's Form 990-EZ for the year ending May 2022, as written (including spelling); all-capital text shown in normal capitalization.
IRS facts
Type: Amateur sports competitions (IRS activity code N70)
Mailing city (IRS): Menlo Park, California 94026
EIN: 94-3397378
Tax status: 501(c)(3), eligible to receive tax-deductible donations; IRS-recognized as tax-exempt since 2003, per IRS records posted October 13, 2026.
Revenue on its latest IRS filing: $105,611 (year ending May 2022)
Check its status on IRS Tax Exempt Organization Search · Filings on ProPublica Nonprofit Explorer
South Peninsula Water Polo Foundation finances
From the annual returns the group files with the IRS (Form 990, or the shorter Form 990-EZ for smaller groups), 1 filed year. Net assets are what it owns minus what it owes; management and general is office, admin and insurance cost. A dash means not reported (the short form does not ask for employees or volunteers). Each figure links to that year's return. A year is left out when no return is in the IRS e-file data; that does not mean the group was inactive.
| Year ending | May 2022 |
|---|---|
| Total revenue | $105,611 |
| Total expenses | $94,391 |
| Total assets | $85,407 |
| Net assets | $85,407 |
| IRS form | Form 990-EZ |
Where the money goes, year ending May 2022
Small groups file the shorter Form 990-EZ, which reports program spending but not the management and fundraising split.
Where the money comes from, year ending May 2022
Only one return is loaded, so we show no growth label.
Source: IRS Form 990 Series Downloads (the returns open on ProPublica Nonprofit Explorer, which republishes the IRS files). Figures are as the organization filed them. California nonprofit.
How it compares
7 of 12 amateur sports nonprofits in Menlo Park when sorted from largest to smallest revenue. This shows size only, not quality. Groups with no reported revenue are listed last.
Size: revenue of $103,024 is higher than roughly 30 to 40% of the 2,432 amateur sports nonprofits in California that report revenue to the IRS (the city count above also includes groups with none). The median is $143,571.
Our analysis of the IRS Business Master File (posted October 13, 2026), using each group's latest reported revenue. Groups are sorted by revenue and split into ten equal bands, using all California groups of this type (Amateur sports, which covers several IRS activity codes). Size only, not a rating.
Around Menlo Park and its county
Licensed programs in Menlo Park
28 licensed child care centers, 4 school-age programs are in state licensing records and listed in the BackPR finder. The examples below are not related to this organization.
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CITY OF MENLO PARK-BELLE HAVEN CHILD DEV CENTER
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CITY OF MENLO PARK-BELLE HAVEN SCHOOL-AGE CC PRGM
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California background check rules for youth programs · How BackPR works for amateur sports nonprofits
Questions about South Peninsula Water Polo Foundation
What is South Peninsula Water Polo Foundation's EIN?
South Peninsula Water Polo Foundation's EIN (Employer Identification Number) is 94-3397378. It is the nine-digit number the IRS uses to identify the organization. Source: IRS Exempt Organizations Business Master File posted October 13, 2026.
Is South Peninsula Water Polo Foundation a nonprofit?
Yes. The IRS lists South Peninsula Water Polo Foundation in Menlo Park, California as tax-exempt under section 501(c)(3), recognized since 2003. This is from the IRS Business Master File posted October 13, 2026. Status can change, so check its current status on the IRS Tax Exempt Organization Search before you donate.
Are donations to South Peninsula Water Polo Foundation tax-deductible?
Yes, the IRS lists gifts to South Peninsula Water Polo Foundation as tax-deductible (IRS Business Master File posted October 13, 2026). How much you can deduct depends on your own taxes, and this is not tax advice. Check its current status on the IRS Tax Exempt Organization Search before you donate.
What does South Peninsula Water Polo Foundation do?
In its own words on its Form 990 for the year ending May 2022: "The south peninsula water polo foundation(sopen) was founded to teach and promote the sport of water polo in the california high school/middle school communities of san mateo and santa clara counties. Any youth in the appropriate age group may apply to join one of the training programs. Sopen is committed to offering a high quality training program that is fun and challenging in a positive..." The IRS classifies it as: Amateur sports competitions.
How much money does South Peninsula Water Polo Foundation take in?
For the year ending May 2022, South Peninsula Water Polo Foundation reported total revenue of $105,611 and total expenses of $94,391 on its Form 990-EZ (IRS Form 990 e-file data).
Do you run this organization?
You can add your programs, season dates, ages, prices, registration link and logo to this page, or ask us to remove it. BackPR's free plan for 501(c)(3)s handles online registration, payments, waivers and attendance. No subscription and no BackPR fee on what families pay (card processing fees from Stripe still apply).
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Free forms for amateur sports nonprofits
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Source: IRS Exempt Organizations Business Master File, posted October 13, 2026. We list 501(c)(3) organizations whose IRS activity code is youth development, amateur sports, camps and recreation, parent-teacher groups, children's services, child day care or arts education. We show the city and ZIP code only, never a street address or contact person. A listing is not an endorsement.
Data as of November 8, 2026. Sources: IRS Business Master File (posted October 13, 2026), IRS Form 990 series e-file data, state child care licensing records in the BackPR finder. Growth labels, ranks and percentiles are BackPR's own calculations.
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