Surest Inc

Private foundation · Grantmaker Cambridge, MA EIN: 85-4284216

Surest Inc is a private foundation based in Cambridge, Massachusetts. Its 2025 filing reports 16 grants totaling $27,200 to charitable organizations.

Surest Inc at a glance

In short: Surest Inc gave $27K across 16 grants in 2025 (avg $2K), top state California. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$27,200
+47.0% vs 2024
Grants made (2025)
16
+6.7% vs 2024
Average grant
$1,700
+37.8% vs 2024
Median grant
$1,000
Total assets
$879,074
+18.3% vs 2024
Primary geography
California (33% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

Data from IRS Form 990-PF, 2025; updated October 2026.

How to apply to Surest Inc

Accepts unsolicited proposals
No
How to Apply

The foundation does not accept unsolicited requests for funds and makes contributions only to preselected charitable organizations.

Contact

Mailing address: 97 Banks St, Cambridge, MA 02138
Phone: (617) 733-4979

Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.

Who Surest Inc funds

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2025

Give Well: $7KGive Well$7KGlobal Giving: $5KGlobal Giving$5KThe Fistula Foundation: $2KThe Fistula Foundation$2KPratham USA: $1KPratham USA$1KSmile Train: $1KSmile Train$1KDoctors Without Borders: $1KDoctors Without Borders$1KAtree USA: $1KAtree USA$1KPhillips Brooks House Association: $1KPhillips Brooks HouseAssociation$1KUnhcr: $1KUnhcr$1KPartners in Health: $1KPartners in Health$1K

The largest 2025 recipient was Give Well ($7K). Together the top 10 received $21K.

Grant Size Distribution

41 grants across all recorded years

41<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 41 grants of 41 (100%).

Geographic Focus

Where this funder awards grants

The 2025 grant dollars went to recipients in California (33%), Washington, DC (23%), Massachusetts (18%), New York (15%), and Texas (4%).

Grant Distribution by State

7states

Share of 2025 grant dollars across all 16 itemized grants.

Cities

New YorkBostonWashingtonBelmontCambridgeHoustonAlbert LeaChicagoOaklandSan Jose

How Surest Inc gives

  • 88% of 2025 grantees were also funded in 2024. Method
  • In 2025 it paid out 78% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method

Estimate from itemized grant lists in IRS Form 990-PF filings (2025). 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

$0$10K$20K$30K1 grant2021 0 grants2022 9 grants2023 15 grants2024 16 grants2025

From 2021 to 2025, annual grant giving ranged from $300 (2021) to $27K (2025). In 2025 it made 16 grants totaling $27K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
Give Well Oakland, CACharitable Purposes$7,000
Global Giving Washington, DCCharitable Purposes$5,200
The Fistula Foundation San Jose, CACharitable Purposes$2,000
Pratham USA Houston, TXCharitable Purposes$1,000
Smile Train New York, NYCharitable Purposes$1,000
Doctors Without Borders New York, NYCharitable Purposes$1,000
Atree USA Belmont, MACharitable Purposes$1,000
Phillips Brooks House Association Cambridge, MACharitable Purposes$1,000
Unhcr Washington, DCCharitable Purposes$1,000
Partners in Health Boston, MACharitable Purposes$1,000
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Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsNet Investment IncomeDistributable Amount
2025$879,074$127,594$28,289$27,20016$27,200$25,441$34,752
2024$743,365$123,760$19,864$18,50015$18,500$22,646$26,843
2023$496,613$112,315$17,148$16,3109$16,310$11,756$18,189
2022$278,024$101,934$19———$1,219$10,643
2021$238,918$102,642$300$3001$300$662$5,657

Under IRS private-foundation payout rules, Surest Inc reported a distributable amount of $35K for 2025 — the minimum it must pay out in qualifying distributions.

Research compiled by Grantable AI from public sources. Last updated September 2026.

Mission & Focus Areas

No mission statement for Surest Inc is provided. Its 2025 grantees include organizations working on issues such as obstetric fistula treatment, cleft care, social justice, food access, and homelessness. For example, the Fistula Foundation describes its mission as ending suffering caused by obstetric fistula by helping women receive treatment and increasing the number of trained surgeons. HomeStart describes its mission as ending homelessness in Greater Boston through housing assistance and strategies addressing systemic barriers to housing placement.

Grantmaking

In 2025, Surest Inc gave $27,200 through 16 grants. Grant amounts ranged from $1,000 to $7,000, with a median grant of $1,000. Notable grants included $7,000 to GiveWell, $5,200 to Global Giving, and $2,000 to the Fistula Foundation. Other 2025 grants included $1,000 each to Phillips Brooks House Association, Smile Train, Feeding America, and HomeStart.

Leadership & Key People

Leadership team and compensation from IRS filings

The 2025 filing lists Lakshminarayan Mahadevan as President; Amala K Mahadevan as Treasurer; and Kausalya Mahadevan and Aditya Mahadevan as Secretaries.

Surest Inc is led by Lakshminarayan Mahadevan, President on every filing since 2021; none of the 4 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Lakshminarayan Mahadevan

    President

    On filings since 2021

    5 hrs/week

    No compensation reported

  • Aditya Mahadevan

    Secretary

    On filings since 2021

    2 hrs/week

    No compensation reported

  • Amala K. Mahadevan

    Treasurer

    On filings since 2021

    5 hrs/week

    No compensation reported

  • Kausalya Mahadevan

    Secretary

    On filings since 2021

    2 hrs/week

    No compensation reported

Data from IRS Form 990 filings, 2021–2025. "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 Surest Inc

How much does Surest Inc give each year?

Surest Inc gave $27K across 16 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $19K across 15 grants.

What is Surest Inc's typical grant size?

Surest Inc's median grant in 2025 was $1,000, and its average grant was $1,700, across 16 grants on its 2025 IRS Form 990-PF.

Where does Surest Inc give grants?

Surest Inc's top state is California, with 33% of the grant dollars itemized on its 2025 IRS Form 990-PF. The next largest states were District of Columbia (23%) and Massachusetts (18%). The most frequent recipient cities were New York, NY (4 grants), Boston, MA (3 grants) and Washington, DC (2 grants).

Who are Surest Inc's largest grantees?

Surest Inc's largest 2025 grantees include Give Well ($7,000), Global Giving ($5,200) and The Fistula Foundation ($2,000), according to its 2025 IRS Form 990-PF. Together they received 52% of its itemized 2025 grant dollars.

How large is Surest Inc?

Surest Inc reported $879K in total assets on its 2025 IRS Form 990-PF. It paid out $27K in qualifying distributions that year, against a required minimum of $35K (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.

What does Surest Inc fund?

No mission statement for Surest Inc is provided. Its 2025 grantees include organizations working on issues such as obstetric fistula treatment, cleft care, social justice, food access, and homelessness. See mission & focus areas ↑

How do I apply for a grant from Surest Inc?

The foundation does not accept unsolicited requests for funds and makes contributions only to preselected charitable organizations. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑

What is Surest Inc's EIN?

Surest Inc's EIN (Employer Identification Number) is 85-4284216. IRS Form 990 filing data is available on this page for 2021–2025.

Does Surest Inc 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

(2)

When this profile's IRS filing data changed on Grantable

  1. Added Form 990-PF for fiscal year 2025 (received by the IRS June 1, 2026)
  2. IRS filings on file for fiscal years 2021–2024

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The filing figures on this page are open data under CC BY 4.0. About GrantGraph Open

Figures come from Surest Inc'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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