Joan Zimmerman Jason and Jordan Sills Foundation

Private foundation · Grantmaker San Francisco, CA EIN: 20-5812630

Joan Zimmerman Jason and Jordan Sills Foundation is a private foundation, based in San Francisco, CA. IRS filing data is available for 2020. In 2020, it awarded 6 grants totaling $209K. Net investment income was $16K.

Key facts about Joan Zimmerman Jason and Jordan Sills Foundation

In short: Joan Zimmerman Jason and Jordan Sills Foundation gave $209K across 6 grants in 2020 (avg $35K), mostly in California. Source: 2020 IRS Form 990-PF.

EIN
20-5812630
Latest 990 filing
Form 990-PF, 2020
Annual giving (2020)
$209,423
Grants made (2020)
6
Average grant
$34,904
Median grant
$6,150
Primary geography
California (98% of itemized 2020 grant dollars)

Data from IRS Form 990-PF, 2020; updated September 2026.

Financial Overview

From 2020 IRS Form 990-PF · View filing

Total Assets

—

Annual Giving

$209K

Grant Count

6

Avg Grant Size

$35K

Under IRS private-foundation payout rules, Joan Zimmerman Jason and Jordan Sills Foundation reported a distributable amount of $5K for 2020 — the minimum it must pay out in qualifying distributions.

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Geographic Focus

Where this funder awards grants

Grant Distribution by State

2states

Share of 2020 grant dollars across all 6 itemized grants.

Cities

HillsboroughNew YorkPetalumaSan FranciscoSan RafaelTiburon

Giving Over Time

Total grant dollars and number of grants per year

$0$100K$200K$300K6 grants2020

In 2020 it made 6 grants totaling $209K.

Grant Insights

How this funder distributes its grants

Top Recipients

Top 6 recipients in 2020

CSNK2A1 Foundation: $169KCSNK2A1 Foundation$169KBrandeis Marin: $22KBrandeis Marin$22KKol Shofar: $6KKol Shofar$6KHillsborough School Foundation: $6KHillsborough School Foundation$6KChild Mind Institute: $5KChild Mind Institute$5KGiant Steps Therapeutic Equestrian Center: $750Giant Steps TherapeuticEquestrian Center$750

The largest 2020 recipient was CSNK2A1 Foundation ($169K). Together the top 6 received $209K.

Grant Size Distribution

6 grants across all recorded years

5<$50K$50–100K1$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 5 grants of 6 (83%).

Giving History

Grant recipients and amounts by year

RecipientPurposeAmount
CSNK2A1 Foundation San Francisco, CAOperating Fund$169,373
Brandeis Marin San Rafael, CAOperating Fund$22,000
Kol Shofar Tiburon, CAOperating Fund$6,300
Hillsborough School Foundation Hillsborough, CAOperating Fund$6,000
Child Mind Institute New York, NYOperating Fund$5,000
Giant Steps Therapeutic Equestrian Center Petaluma, CAOperating Fund$750

Financial History

Multi-year comparison from IRS filings

Revenue
Expenses
Net Investment Income
$0$100K$200K$300K2020
Metric2020
Revenue$15,761
Expenses$209,516
Net Investment Income$15,528
Distributable Amount$5,349

Data update history

When this profile's IRS filing data changed on Grantable

  1. IRS filings on file for fiscal year 2020

Leadership & Key People

Officers and directors from IRS filings

Joan Zimmerman Jason and Jordan Sills Foundation's 2020 filing lists 3 officers; none of the 3 officers listed in 2020 report compensation.

Officers on the 2020 filing

  • Jason Sills

    Director

    New on the 2020 filing

    No compensation reported

  • Joan Goodman Zimmerman

    Director

    New on the 2020 filing

    No compensation reported

  • Jordan Sills

    Director

    New on the 2020 filing

    No compensation reported

Data from IRS Form 990 filings, 2020. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Frequently asked questions about Joan Zimmerman Jason and Jordan Sills Foundation

How much does Joan Zimmerman Jason and Jordan Sills Foundation give each year?

Joan Zimmerman Jason and Jordan Sills Foundation gave $209K across 6 grants in 2020, according to its 2020 IRS Form 990-PF.

What is Joan Zimmerman Jason and Jordan Sills Foundation's typical grant size?

Joan Zimmerman Jason and Jordan Sills Foundation's median grant in 2020 was $6,150, and its average grant was $34,904, across 6 grants on its 2020 IRS Form 990-PF.

Where does Joan Zimmerman Jason and Jordan Sills Foundation give grants?

Joan Zimmerman Jason and Jordan Sills Foundation gives mostly in California: 98% of the grant dollars itemized on its 2020 IRS Form 990-PF went to recipients there.

Does Joan Zimmerman Jason and Jordan Sills Foundation give general operating support?

Yes: 100% of Joan Zimmerman Jason and Jordan Sills Foundation's 2020 grants with a stated purpose (6 of 6) were for general or operating support, per its 2020 IRS Form 990-PF.

Who are Joan Zimmerman Jason and Jordan Sills Foundation's largest grantees?

Joan Zimmerman Jason and Jordan Sills Foundation's largest 2020 grantees include CSNK2A1 Foundation ($169,373), Brandeis Marin ($22,000) and Kol Shofar ($6,300), according to its 2020 IRS Form 990-PF. Together they received 94% of its itemized 2020 grant dollars.

How much is Joan Zimmerman Jason and Jordan Sills Foundation required to give away each year?

Private foundations must generally distribute about 5% of their assets annually. For 2020, Joan Zimmerman Jason and Jordan Sills Foundation reported a distributable amount of $5K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.

What is Joan Zimmerman Jason and Jordan Sills Foundation's EIN?

Joan Zimmerman Jason and Jordan Sills Foundation's EIN (Employer Identification Number) is 20-5812630. IRS Form 990 filing data is available on this page for 2020.

Data last updated September 2026. Sourced from IRS Form 990-PF filings.

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