Mackesy Family Foundation | Foundation Profile

GrantBay analyzes IRS Form 990-PF data to help grant seekers find fit funders like Mackesy Family Foundation. Data shown is extracted from Form 990-PF filings.

EIN: 47-2587937

Foundation Overview

Based in Bronxville, NY, Mackesy Family Foundation has awarded 125 grants totaling $23,151,818 to organizations in New York, Connecticut and 8 other states across the US. Individual grants range from $500 to $2,670,000, with a median award of $25,000.

Latest Tax Year
2023
Total Giving (all years)
$23,151,818
Total Assets
$28,627,895
Median Grant (all grants)
$25,000

Latest Form 990-PF Snapshot

Total Grants
36
Median Grant
$15,000
% Median Grant Decline
-40% (vs previous year)
Data extracted from IRS Form 990-PF filings. Last filing year: February 2026

Foundation Intelligence

Advanced analytics and strategic insights to help nonprofit organizations assess grant opportunities and optimize their application strategies

New Applicant Friendliness
Relationship-Focused: 28%

10 of 36 recipients (28%) were new grantees. Foundation strongly favors organizations with proven track records. New partnerships develop slowly over time.

Geographic Focus
New York

50% of grants are awarded in New York, with additional funding distributed across 9 other locations. The foundation balances regional focus with broader geographic diversity. Within New York, funding concentrates in New York (46%), Bronxville (30%), Brooklyn (11%).

Funding Trajectory
+76%

Strong 76% growth in annual giving over 3 years indicates expanding philanthropic capacity and increasing opportunities for grant seekers. This upward trajectory suggests growing foundation resources and commitment.

Program Areas
Community Projects

Highly focused on community projects with 100% of funding dedicated to this sector. This specialization indicates deep expertise and committed investment in the field.

Where is The Money Going?

Loading geographic data...
Loading chart...
Loading chart...
Loading chart...

Grants & Funding

Analyzing past grantees provides valuable insights into Mackesy Family Foundation's funding preferences, organizational priorities, and grant making patterns. This historical data helps potential applicants understand the foundation's strategic focus and identify successful funding approaches.

Name Amount Location Purpose Year
Destination College $5,000 Bronxville, NY, US General Support 2023
Graham Windham $260,000 Brooklyn, NY, US General Support 2023
Lake Waramaug Task Force $20,000 Warren, CT, US General Support 2023
Lead Africa $25,000 New York, NY, US General Support 2023
Mainsprings The Janada L Batchelor Foundation For Children $25,000 Tulsa, OK, US General Support 2023
Robin Hood Foundation $50,000 New York, NY, US General Support 2023
The One Love Foundation $5,000 Bronxville, NY, US General Support 2023
The Picture House $2,200 Pelham, NY, US General Support 2023
The Rockefeller University $75,000 New York, NY, US General Support 2023
United States Soccer Foundation Inc $10,000 Washington, DC, US General Support 2023
United States Squash Racquetsassociation $250,000 Philadelphia, PA, US General Support 2023
William & Mary Foundation $2,670,000 Williamsburg, VA, US General Support 2023
American Foundation For Suicide Prevention $10,000 New York, NY, US General Support 2023
Citysquash $10,000 Bronx, NY, US General Support 2023
Lost Tree Village Charitable $5,000 North Palm Beach, FL, US General Support 2023
Princeton University $80,121 Princeton, NJ, US General Support 2023
Squash And Education Alliance $5,000 New York, NY, US General Support 2023
Village Of Bronxville $10,000 Bronxville, NY, US General Support 2023
Destination College $5,000 Bronxville, NY, US General Support 2023
Graham Windham $260,000 Brooklyn, NY, US General Support 2023
Lake Waramaug Task Force $20,000 Warren, CT, US General Support 2023
Lead Africa $25,000 New York, NY, US General Support 2023
Mainsprings The Janada L Batchelor Foundation For Children $25,000 Tulsa, OK, US General Support 2023
Robin Hood Foundation $50,000 New York, NY, US General Support 2023
The One Love Foundation $5,000 Bronxville, NY, US General Support 2023
The Picture House $2,200 Pelham, NY, US General Support 2023
The Rockefeller University $75,000 New York, NY, US General Support 2023
United States Soccer Foundation Inc $10,000 Washington, DC, US General Support 2023
United States Squash Racquetsassociation $250,000 Philadelphia, PA, US General Support 2023
William & Mary Foundation $2,670,000 Williamsburg, VA, US General Support 2023
American Foundation For Suicide Prevention $10,000 New York, NY, US General Support 2023
Citysquash $10,000 Bronx, NY, US General Support 2023
Lost Tree Village Charitable $5,000 North Palm Beach, FL, US General Support 2023
Princeton University $80,121 Princeton, NJ, US General Support 2023
Squash And Education Alliance $5,000 New York, NY, US General Support 2023
Village Of Bronxville $10,000 Bronxville, NY, US General Support 2023
Destination College $5,000 Bronxville, NY, US General Support 2022
Graham Windham $707,000 Brooklyn, NY, US General Support 2022
Mainsprings The Janada L Batchelor Foundation For Children $25,000 Tulsa, OK, US General Support 2022
Lead Africa $25,000 New York, NY, US General Support 2022
The College Of William & Mary $120,000 Williamsburg, VA, US General Support 2022
The Rockefeller University $75,000 New York, NY, US General Support 2022
United States Soccer Foundation Inc $5,000 Washington, DC, US General Support 2022
United States Squash Racquetsassociation $500,000 New York, NY, US General Support 2022
Virginia Athletics Foundation $16,420 Charlottesville, VA, US General Support 2022
William & Mary Foundation $2,160,000 Williamsburg, VA, US General Support 2022
Aspen Institute $25,000 Washington, DC, US General Support 2022
Discovery Land Company Foundation $55,000 Beverly Hills, CA, US General Support 2022
Help Us Grow Reading Program $10,000 Louisville, KY, US General Support 2022
Lake Waramaug Task Force $10,000 Warren, CT, US General Support 2022
Robin Hood Foundation $50,000 New York, NY, US General Support 2022
The One Love Foundation $2,500 Bronxville, NY, US General Support 2022
The Picture House $2,200 Pelham, NY, US General Support 2022
Destination College $5,000 Bronxville, NY, US General Support 2022
Graham Windham $707,000 Brooklyn, NY, US General Support 2022
Mainsprings The Janada L Batchelor Foundation For Children $25,000 Tulsa, OK, US General Support 2022
Lead Africa $25,000 New York, NY, US General Support 2022
The College Of William & Mary $120,000 Williamsburg, VA, US General Support 2022
The Rockefeller University $75,000 New York, NY, US General Support 2022
United States Soccer Foundation Inc $5,000 Washington, DC, US General Support 2022
United States Squash Racquetsassociation $500,000 New York, NY, US General Support 2022
Virginia Athletics Foundation $16,420 Charlottesville, VA, US General Support 2022
William & Mary Foundation $2,160,000 Williamsburg, VA, US General Support 2022
Aspen Institute $25,000 Washington, DC, US General Support 2022
Discovery Land Company Foundation $55,000 Beverly Hills, CA, US General Support 2022
Help Us Grow Reading Program $10,000 Louisville, KY, US General Support 2022
Lake Waramaug Task Force $10,000 Warren, CT, US General Support 2022
Robin Hood Foundation $50,000 New York, NY, US General Support 2022
The One Love Foundation $2,500 Bronxville, NY, US General Support 2022
The Picture House $2,200 Pelham, NY, US General Support 2022
Destination College $5,000 Bronxville, NY, US General Support 2022
Graham Windham $707,000 Brooklyn, NY, US General Support 2022
Mainsprings The Janada L Batchelor Foundation For Children $25,000 Tulsa, OK, US General Support 2022
Lead Africa $25,000 New York, NY, US General Support 2022
The College Of William & Mary $120,000 Williamsburg, VA, US General Support 2022
The Rockefeller University $75,000 New York, NY, US General Support 2022
United States Soccer Foundation Inc $5,000 Washington, DC, US General Support 2022
United States Squash Racquetsassociation $500,000 New York, NY, US General Support 2022
Virginia Athletics Foundation $16,420 Charlottesville, VA, US General Support 2022
William & Mary Foundation $2,160,000 Williamsburg, VA, US General Support 2022
Aspen Institute $25,000 Washington, DC, US General Support 2022
Discovery Land Company Foundation $55,000 Beverly Hills, CA, US General Support 2022
Help Us Grow Reading Program $10,000 Louisville, KY, US General Support 2022
Lake Waramaug Task Force $10,000 Warren, CT, US General Support 2022
Robin Hood Foundation $50,000 New York, NY, US General Support 2022
The One Love Foundation $2,500 Bronxville, NY, US General Support 2022
The Picture House $2,200 Pelham, NY, US General Support 2022
The Rockefeller University $100,000 New York, NY, US General Support 2021
The Hotchkiss School $260,000 Lakeville, CT, US General Support 2021
Brunswick School $625,000 Greenwich, CT, US General Support 2021
The College Of William & Mary Note Lord Botetourt Auction $99,300 Williamsburg, VA, US General Support 2021
Belpointe Foundation - Als $25,000 Greenwich, CT, US General Support 2021
William & Mary Foundation $1,242,202 Williamsburg, VA, US General Support 2021
Janada L Batchelorfoundation For Children Dba Mainsprings $25,000 Tulsa, OK, US General Support 2021
Virginia Athletics Foundation $25,000 Charlottesville, VA, US General Support 2021
Destination College $5,000 Bronxville, NY, US General Support 2021
United States Soccer Foundation Inc $5,000 Washington, DC, US General Support 2021
Lead Africa $25,000 New York, NY, US General Support 2021
United States Squash Racquetsassociation $50,000 New York, NY, US General Support 2021
Graham Windham Operating Account $250,000 Brooklyn, NY, US General Support 2021
Bereavement Center Of Westchester $500 Scarsdale, NY, US General Support 2020
Bronxville Historical Conservancy $500 Bronxville, NY, US General Support 2020
Brunswick School $375,000 Greenwich, CT, US General Support 2020
Bundles Of Joy $500 Bronxville, NY, US General Support 2020
Destination College $5,000 Bronxville, NY, US General Support 2020
Graham Windham $460,000 Brooklyn, NY, US General Support 2020
Horizons At Brunswick $1,000 Greenwich, CT, US General Support 2020
Kent Land Trust $1,000 Kent, CT, US General Support 2020
Lake Waramaug Task Force $15,000 Warren, CT, US General Support 2020
Lead Africa $10,000 New York, NY, US General Support 2020
Locks Of Love $1,250 West Palm Beach, FL, US General Support 2020
Mainsprings - Janada L Batchelor Foundation For Children $25,000 Tulsa, OK, US General Support 2020
Concordia College - New York $500 Bronxville, NY, US General Support 2020
Our House Foundation $100,000 Murray Hill, NJ, US General Support 2020
Squash And Education Alliance $25,000 New York, NY, US General Support 2020
Squash Haven $500 New Haven, CT, US General Support 2020
The Blue Ribbon Foundation $2,500 Bronxville, NY, US General Support 2020
The College Of William And Mary $316,564 Williamsburg, VA, US General Support 2020
The Community Fund $1,000 Bronxville, NY, US General Support 2020
The Hotchkiss School Development $245,000 Lakeville, CT, US General Support 2020
The Rockefeller University $75,000 New York, NY, US General Support 2020
United States Squash Racquets $235,000 New York, NY, US General Support 2020
Us Soccer Foundation $5,000 Washington, DC, US General Support 2020
Virginia Athletics Foundation Mens $100,000 Charlottesville, VA, US General Support 2020
Washington Community Fund Inc $500 Washington, CT, US General Support 2020

Foundations Similar to Mackesy Family Foundation

Discover 5 foundations with comparable assets ($28,547,544-$28,788,511), similar grant patterns, and geographic focus in NY that may also align with your organization's funding needs and grant seeking strategy.

Foundation Name Total Assets Typical Grant Size Service Area Similarity Match

EIN: 13-4275798 | 180 grants awarded
$28,695,372
(≈ Similar)
$20,000
median grant
Penfield, NY
Same state
100%
Excellent match

EIN: 47-0992587 | 208 grants awarded
$28,547,544
(≈ Similar)
$22,500
median grant
Port Jefferson, NY
Same state
100%
Excellent match

EIN: 05-0544092 | 122 grants awarded
$28,708,801
(≈ Similar)
$50,000
median grant
New York, NY
Same state
100%
Excellent match

EIN: 47-3873474 | 86 grants awarded
$28,782,219
(≈ Similar)
$30,000
median grant
New York, NY
Same state
100%
Excellent match

EIN: 35-2755099 | 35 grants awarded
$28,788,511
(≈ Similar)
$16,500
median grant
New York, NY
Same state
100%
Excellent match

Contact Information

Official contact details for Mackesy Family Foundation as registered with the IRS. These details are essential for grant applications, correspondence, and due diligence processes.

EIN 47-2587937
Website N/A
Address 25 OAKLEDGE ROAD Bronxville, NY 10708-0000

Key People (2)

Board members, trustees, and key staff who oversee Mackesy Family Foundation's grant making decisions and strategic direction. Understanding leadership composition can provide insights into foundation priorities and potential networking opportunities.

Co -Trustee D Scott Mackesy
Co-trustee Jennifer T Mackesy

Forms 990-PF

IRS Form 990-PF filings provide comprehensive financial information, grant details, and operational data. These documents are essential resources for understanding foundation capacity, giving patterns, and strategic priorities.

Form 990-PF Research Tips
  • Review Part XV for detailed grant recipient information and funding purposes
  • Check Part I for total assets, annual giving amounts, and payout requirements
  • Examine Part VIII for key personnel compensation and board structure
  • Look for trends across multiple years to understand giving patterns

About This Foundation Profile

This comprehensive foundation profile for Mackesy Family Foundation is powered by Grant Bay's advanced foundation research platform. Our system analyzes IRS Form 990-PF filings, grant histories, and philanthropic patterns to provide nonprofit organizations with actionable intelligence for grant seeking success.

Data Sources & Accuracy

All information is derived from official IRS filings and public records. Grant Bay processes thousands of Form 990-PF documents to extract grant details, financial data, and organizational information. Data accuracy depends on foundation reporting quality and IRS filing completeness.

Research Applications

Use this profile for prospect research, grant strategy development, application preparation, and relationship building. Combine this data with additional research on foundation priorities, application processes, and board member backgrounds for comprehensive grant seeking strategies.

Data Currency: Last updated February 2026 based on IRS Form 990-PF filings. Foundation information reflects most recent available tax year data.