Republican Main Street Partnership logo

Republican Main Street Partnership

501(c)(4) organization Washington, DC EIN: 59-1828852 Website

To study and educate the public and members of congress on the effects of governmental policies on healthcare, engery and the environment, trade, defense, tax policy and the deficit.

Republican Main Street Partnership at a glance

Total assets
$2,866,349
+0.6% vs 2023
Revenue (2024)
$3,836,687
-11.8% vs 2023
Net investment income (2024)
$169,782
+91.6% vs 2023
Expenses (2024)
$3,819,886
+4.0% vs 2023
Latest 990 filing
Form 990, 2024 View filing

Data from IRS Form 990, 2024; updated September 2026.

Who Republican Main Street Partnership funds

How this funder distributes its grants

Grant Size Distribution

2 grants across all recorded years

<$50K$50–100K$100–250K$250–500K1$500K–1M1$1–5M$5M+

The most common grant size was in the $500K–1M range: 1 grant of 2 (50%).

Geographic Focus

Where this funder awards grants

Grant Distribution by State

1state

Cities

Washington

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$250K$500K$750K$1M0 grants2020 1 grant2021 Total only2022 1 grant2023 0 grants2024

From 2021 to 2023, annual grant giving ranged from $3K (2022) to $1.0M (2023). In 2023 it made 1 grant totaling $1.0M.

Hatched bars: grants paid as reported on the IRS filing, which lists no individual grants for that year.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
Defending Main Street Super PAC Washington, DCTo support dynamic candidates and incumbents in key, contested districts across the country that are crucial to ensuring a Republican Majority in Congress$1,000,000
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Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsNet Investment Income
2024$2,866,349$3,836,687$3,819,886——$169,782
2023$2,849,548$4,348,531$3,673,219$1,000,0001$88,620
2022$2,174,236$1,833,926$1,417,228$2,500Total only$6,901
2021$1,757,538$2,318,437$1,901,266$500,0001$-6,567
2020$1,340,367$863,393$998,103——$7,393

"Total only": grants paid as reported on the IRS filing, which lists no individual grants for that year.

About Republican Main Street Partnership

Based on IRS filings

Republican Main Street Partnership is a public charity focused on public and societal benefit, based in Washington, DC. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $2.9M in total assets. Net investment income was $170K.

Leadership & Key People

Officers and directors from IRS filings

Republican Main Street Partnership is led by Sarah M. Chamberlain, President & CEO since 2024 (on filings since 2020); 1 of 3 officers listed in 2024 is compensated.

Officers on the 2024 filing

  • Sarah M. Chamberlain

    President & CEO

    Director, President & CEO → President & CEO, 2024

    On filings since 2020

    40 hrs/week

    $283K (2020) → $406K (2024)

  • Timothy J. Regan

    Director

    On filings since 2020

    1 hr/week

    No compensation reported

  • Doug Ose

    Secretary & Treasurer

    Director, Treasurer & Secretary → Secretary & Treasurer, 2024

    On filings since 2020

    3 hrs/week

    $15K (2020) → $0 (2024)

Former officers (3)
  • Former: Sarah Chamberlian (2023) — Direction, President & CEO
  • Former: Robert Ziff (2020–2021) — Director
  • Former: Amory Houghton (2020) — Director & Chair

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 2024 IRS filing

Sarah M Chamberlain — President & CEO: $406KSarah M ChamberlainPresident & CEO$406K

The highest reported compensation on the 2024 filing was $406K, to Sarah M Chamberlain (President & CEO).

Frequently asked questions about Republican Main Street Partnership

How large is Republican Main Street Partnership?

Republican Main Street Partnership reported $2.9M in total assets on its 2024 IRS Form 990. Its revenue that year was $3.8M.

What is Republican Main Street Partnership?

Republican Main Street Partnership is a public charity focused on public and societal benefit, based in Washington, DC. It holds $2.9M in total assets as of 2024.

Where does Republican Main Street Partnership operate?

Republican Main Street Partnership has awarded grants in District of Columbia.

What is Republican Main Street Partnership's EIN?

Republican Main Street Partnership's EIN (Employer Identification Number) is 59-1828852. IRS Form 990 filing data is available on this page for 2020–2024.

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

Data update history

(4)

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990 for fiscal year 2021 (received by the IRS October 17, 2022)
  2. Updated Form 990 for fiscal year 2022 (received by the IRS November 6, 2023)
  3. Updated Form 990 for fiscal year 2023 (received by the IRS September 19, 2024)
  4. IRS filings on file for fiscal years 2020–2024

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

Figures come from Republican Main Street Partnership'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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