Sterk Family Marantha Foundation
Sterk Family Marantha Foundation is a private foundation based in Byron Center, Michigan. It makes direct cash contributions to religious, charitable, and educational organizations.
Sterk Family Marantha Foundation at a glance
In short: Sterk Family Marantha Foundation gave $92K across 35 grants in 2024 (avg $3K), mostly in Michigan. 26% of 2024 grantees were new. Source: 2024 IRS Form 990-PF.
- Annual giving (2024)
- $91,615
- +80.6% vs 2023
- Grants made (2024)
- 35
- +9.4% vs 2023
- Average grant
- $2,618
- +65.2% vs 2023
- Median grant
- $500
- Total assets
- $380,521
- +4.5% vs 2023
- New grantees (estimate)
- 26% first-time grantees (9 of 35, 2024)
- Primary geography
- Michigan (67% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990-PF, 2024 View filing
Data from IRS Form 990-PF, 2024; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).
How to apply to Sterk Family Marantha Foundation
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds.
- Contact
Mailing address: 8700 Burlingame Ave Sw, Byron Center, MI 49315
Phone: (616) 366-1287
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Sterk Family Marantha Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
The largest 2024 recipient was Mission India ($19K). Together the top 10 received $81K.
Grant Size Distribution
152 grants across all recorded years
The most common grant size was under $50K: 152 grants of 152 (100%).
Geographic Focus
Where this funder awards grants
In 2024, 67% of grant dollars went to recipients in Michigan, 13% to Illinois, 8% to Colorado, 5% to New York, and 3% to North Carolina. The remaining share went to recipients in other states.
Grant Distribution by State
Share of 2024 grant dollars across all 35 itemized grants.
States
Cities
Is Sterk Family Marantha Foundation open to new grantees?
26%
first-time grantees, 2024
In 2024, 9 of 35 grantees (26%) were first-time recipients. First grants averaged $2K; repeat grants $3K. How we count
Medians: $200 first-time, $800 repeat.
- 69% of 2024 grantees were also funded in 2023. Method
- Giving grew 67% from 2021 to 2024. Method
- In 2024 it paid out 444% of its IRS minimum distribution (the 5% rule). Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2024). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2024, annual grant giving ranged from $5K (2020) to $92K (2024). In 2024 it made 35 grants totaling $92K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Mission India Grand Rapids, MI | General Fund | $19,000 |
| Byron Center Christian Schools Byron Center, MI | General Fund | $15,000 |
| South Christian High School Byron Center, MI | General Fund | $10,500 |
| Bible League International Crete, IL | General Fund | $8,000 |
| Cornerstone Church Caledonia, MI | General Fund | $7,300 |
| Compassion International Colorado Springs, CO | General Fund | $5,305 |
| Moline Christian School Moline, MI | General Fund | $5,000 |
| Umcor New York, NY | General Fund | $5,000 |
| Today in the Word Chicago, IL | General Fund | $3,850 |
| Samaritan's Purse Boone, NC | General Fund | $1,800 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2024 | $380,521 | $136,687 | $120,390 | $91,615 | 35 | $91,615 | $31,535 | $20,644 |
| 2023 | $364,224 | $109,771 | $77,242 | $50,717 | 32 | $50,717 | $10,571 | $19,083 |
| 2022 | $331,695 | $118,661 | $76,462 | $58,512 | 36 | $58,512 | $19,439 | $18,266 |
| 2021 | $289,496 | $104,931 | $65,680 | $54,723 | 33 | $54,723 | $9,000 | $15,134 |
| 2020 | $250,245 | $265,769 | $15,524 | $5,309 | 16 | — | $1,032 | $6,255 |
Under IRS private-foundation payout rules, Sterk Family Marantha Foundation reported a distributable amount of $21K for 2024 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated September 2026.
Mission & Focus Areas
The foundation does not state a mission in the available information. Its 2024 grants went to organizations that include Christian schools, churches, religious ministries, and charitable organizations. For example, South Christian High School describes its mission as providing a Christ-centered high school education; Mel Trotter Ministries says it works through rescue and restoration for people experiencing hunger and homelessness; and Special Olympics says it promotes inclusion through sports, health, and education programs.
Grantmaking
In 2024, the foundation made 35 grants totaling $91,615. Grant amounts ranged from $100 to $19,000, with a median of $500. Its largest grants included $19,000 to Mission India, $15,000 to Byron Center Christian Schools, $10,500 to South Christian High School, $8,000 to Bible League International, and $7,300 to Cornerstone Church. Each was reported for general fund purposes.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2024 filing lists William O Sterk as president; Dave Ezinga, Marlene J Sterk, and Jim Sterk as directors; and Erin Dunneback as secretary.
Sterk Family Marantha Foundation is led by William O. Sterk, President since 2021 (on filings since 2020); none of the 5 officers listed in 2024 report compensation.
Officers on the 2024 filing
William O. Sterk
President
Trustee & President → President, 2021
On filings since 2020
1 hr/week
$3K (2020) → $0 (2024)
Dave Ezinga
Director
On filings since 2020
1 hr/week
No compensation reported
Jim Sterk
Director
On filings since 2020
1 hr/week
No compensation reported
Marlene J. Sterk
Director
On filings since 2020
1 hr/week
No compensation reported
Erin Dunneback
Secretary
On filings since 2021
1 hr/week
No compensation reported
Data from IRS Form 990 filings, 2020–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2020 IRS filing
The highest reported compensation on the 2020 filing was $3K, to William O Sterk (President).
Frequently asked questions about Sterk Family Marantha Foundation
How much does Sterk Family Marantha Foundation give each year?
Sterk Family Marantha Foundation gave $92K across 35 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $51K across 32 grants.
What is Sterk Family Marantha Foundation's typical grant size?
Sterk Family Marantha Foundation's median grant in 2024 was $500, and its average grant was $2,618, across 35 grants on its 2024 IRS Form 990-PF. Organizations receiving their first grant from Sterk Family Marantha Foundation that year got $2K on average.
Where does Sterk Family Marantha Foundation give grants?
Sterk Family Marantha Foundation gives mostly in Michigan: 67% of the grant dollars itemized on its 2024 IRS Form 990-PF went to recipients there. The next largest states were Illinois (13%) and Colorado (8%). The most frequent recipient cities were Grand Rapids, MI (9 grants), Washington, DC (3 grants), Byron Center, MI (2 grants) and Colorado Springs, CO (2 grants).
Does Sterk Family Marantha Foundation give general operating support?
Yes: 100% of Sterk Family Marantha Foundation's 2024 grants with a stated purpose (35 of 35) were for general or operating support, per its 2024 IRS Form 990-PF.
Who are Sterk Family Marantha Foundation's largest grantees?
Sterk Family Marantha Foundation's largest 2024 grantees include Mission India ($19,000), Byron Center Christian Schools ($15,000) and South Christian High School ($10,500), according to its 2024 IRS Form 990-PF. Together they received 49% of its itemized 2024 grant dollars.
How large is Sterk Family Marantha Foundation?
Sterk Family Marantha Foundation reported $381K in total assets on its 2024 IRS Form 990-PF. It paid out $92K in qualifying distributions that year, against a required minimum of $21K (roughly 5% of its investment assets).
What does Sterk Family Marantha Foundation fund?
The foundation does not state a mission in the available information. Its 2024 grants went to organizations that include Christian schools, churches, religious ministries, and charitable organizations. See mission & focus areas ↑
How do I apply for a grant from Sterk Family Marantha Foundation?
The foundation makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is Sterk Family Marantha Foundation's EIN?
Sterk Family Marantha Foundation's EIN (Employer Identification Number) is 85-0810717. IRS Form 990 filing data is available on this page for 2020–2024.
Does Sterk Family Marantha Foundation accept unsolicited proposals?
No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2024
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Cite this profile
Grantable. (2026). Sterk Family Marantha Foundation funder profile. GrantGraph. Retrieved October 11, 2026, from https://grantable.co/funders/sterk-family-marantha-foundation-morg_4bcdc4f094c44cfdb5e247eecf84ebac
BibTeX
@misc{grantable_850810717_2026,
author = {{Grantable}},
title = {{Sterk Family Marantha Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/sterk-family-marantha-foundation-morg_4bcdc4f094c44cfdb5e247eecf84ebac},
note = {Accessed 2026-10-11. Data licensed CC BY 4.0}
}The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.
Figures come from Sterk Family Marantha Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.
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