Third Street Foundation | Foundation Profile

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

EIN: 26-2535107

Foundation Overview

Based in Portsmouth, NH, Third Street Foundation has awarded 206 grants totaling $996,250 to organizations in Massachusetts, New York and 10 other states across the US. Individual grants range from $500 to $66,000, with a median award of $1,000.

Latest Tax Year
2024
Total Giving (all years)
$996,250
Total Assets
$1,432,101
Median Grant (all grants)
$1,000

Latest Form 990-PF Snapshot

Total Grants
42
Median Grant
$3,000
% Median Grant Growth
+50% (vs previous year)
Data extracted from IRS Form 990-PF filings. Last filing year: March 2026

Foundation Intelligence

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

New Applicant Friendliness
Closed Network: 10%

4 of 42 recipients (10%) were new grantees. Foundation maintains tight relationships with established partners. New applicants rarely succeed without insider connections.

Geographic Focus
Massachusetts

Grants are geographically diversified with 36% in Massachusetts and funding distributed across 12 total locations. This foundation values broad geographic impact and diverse community partnerships. Within Massachusetts, funding concentrates in Boston (31%), Acton (23%), Concord (19%).

Funding Trajectory
+147%

Strong 147% growth in annual giving over 8 years indicates expanding philanthropic capacity and increasing opportunities for grant seekers. This upward trajectory suggests growing foundation resources and commitment.

Program Areas
General Purposes + 2 others

Diversified giving across multiple program areas with primary emphasis on general purposes (39%). This broad approach suggests openness to various causes and innovative cross-sector solutions.

Where is The Money Going?

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Grants & Funding

Analyzing past grantees provides valuable insights into Third Street 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
Harvard College $66,000 Cambridge, MA, US Harvard College, Harvard Business School, Harvard Graduate School Of Education 2024
St Paul's School $2,000 Concord, MA, US General Support 2024
Corning Museum Of Glass $35,000 Corning, NY, US General Support 2024
Acton Conservation Trust $1,000 Acton, MA, US General Support 2024
Doctors Without Borders $4,000 Hagerstown, MD, US General Support 2024
Boston Area Gleaners $1,000 Acton, MA, US General Support 2024
Equal Justice Initiative $3,000 Montgomery, AL, US General Support 2024
Green Inspired Art $3,000 New York, NY, US General Support 2024
Habitat For Humanity International $2,000 Americus, GA, US General Support 2024
Household Goods Inc $2,000 Acton, MA, US General Support 2024
Human Rights Campaign Foundation $2,000 Washington, DC, US General Support 2024
Partners In Health $3,000 Boston, MA, US General Support 2024
Pine Street Inn $2,000 Boston, MA, US General Support 2024
Planned Parenthood Federation Of America $3,000 Washington, DC, US General Support 2024
Rosie's Place $2,000 Boston, MA, US General Support 2024
Save The Children $3,000 Fairfield, CT, US General Support 2024
The Farm School $1,000 Athol, MA, US General Support 2024
Open Table $1,000 Concord, MA, US General Support 2024
World Central Kitchen $4,000 Washington, DC, US General Support 2024
St Hilda's & St Hugh's School $5,000 New York, NY, US General Support 2024
Unicef Usa $4,000 New York, NY, US General Support 2024
Harvard College $66,000 Cambridge, MA, US Harvard College, Harvard Business School, Harvard Graduate School Of Education 2024
St Paul's School $2,000 Concord, MA, US General Support 2024
Corning Museum Of Glass $35,000 Corning, NY, US General Support 2024
Acton Conservation Trust $1,000 Acton, MA, US General Support 2024
Doctors Without Borders $4,000 Hagerstown, MD, US General Support 2024
Boston Area Gleaners $1,000 Acton, MA, US General Support 2024
Equal Justice Initiative $3,000 Montgomery, AL, US General Support 2024
Green Inspired Art $3,000 New York, NY, US General Support 2024
Habitat For Humanity International $2,000 Americus, GA, US General Support 2024
Household Goods Inc $2,000 Acton, MA, US General Support 2024
Human Rights Campaign Foundation $2,000 Washington, DC, US General Support 2024
Partners In Health $3,000 Boston, MA, US General Support 2024
Pine Street Inn $2,000 Boston, MA, US General Support 2024
Planned Parenthood Federation Of America $3,000 Washington, DC, US General Support 2024
Rosie's Place $2,000 Boston, MA, US General Support 2024
Save The Children $3,000 Fairfield, CT, US General Support 2024
The Farm School $1,000 Athol, MA, US General Support 2024
Open Table $1,000 Concord, MA, US General Support 2024
World Central Kitchen $4,000 Washington, DC, US General Support 2024
St Hilda's & St Hugh's School $5,000 New York, NY, US General Support 2024
Unicef Usa $4,000 New York, NY, US General Support 2024
Harvard College $9,000 Cambridge, MA, US Harvard College, Harvard Business School, Harvard Athletics Hockey, Harvard Graduate School Of Education 2023
St Paul's School $11,000 Concord, MA, US General Support 2023
Corning Museum Of Glass $22,000 Corning, NY, US President's Resource Fund 2023
Acton Conservation Trust $1,000 Acton, MA, US General Support 2023
Doctors Without Borders $3,000 Hagerstown, MD, US General Support 2023
Boston Area Gleaners $1,000 Acton, MA, US General Support 2023
Equal Justice Initiative $3,000 Montgomery, AL, US General Support 2023
Groundswell $1,000 Brooklyn, NY, US General Support 2023
Habitat For Humanity $2,000 Americus, GA, US General Support 2023
Household Goods Inc $2,000 Acton, MA, US General Support 2023
Human Rights Campaign Foundation $1,000 Washington, DC, US General Support 2023
Christ Episcopal Church $50,000 Corning, NY, US General Support 2023
Partners In Health $3,000 Boston, MA, US General Support 2023
Pine Street Inn $2,000 Boston, MA, US General Support 2023
Planned Parenthood Federation Of America $3,000 Washington, DC, US General Support 2023
Rosie's Place $2,000 Boston, MA, US General Support 2023
Save The Children $1,000 Fairfield, CT, US General Support 2023
The Farm School $1,000 Athol, MA, US General Support 2023
The Triangle Fund $14,000 Corning, NY, US Cover The Costs Paid To Rochelle Media For New Films 2023
Open Table $1,000 Concord, MA, US General Support 2023
World Central Kitchen $2,000 Washington, DC, US General Support 2023
Harvard College $9,000 Cambridge, MA, US Harvard College, Harvard Business School, Harvard Athletics Hockey, Harvard Graduate School Of Education 2022
St Paul's School $2,000 Concord, MA, US General Support 2022
Corning Museum Of Glass $20,000 Corning, NY, US President's Resource Fund 2022
Acton Conservation Trust $1,000 Acton, MA, US General Support 2022
Doctors Without Borders $1,000 Hagerstown, MD, US General Support 2022
Green Inspired Art Inc $1,000 New York, NY, US General Support 2022
Equal Justice Initiative $1,000 Montgomery, AL, US General Support 2022
Groundswell $1,000 Brooklyn, NY, US General Support 2022
Habitat For Humanity $1,000 Americus, GA, US General Support 2022
Household Goods Inc $1,000 Acton, MA, US General Support 2022
Human Rights Watch $1,000 New York, NY, US General Support 2022
National Dance Institute $1,000 New York, NY, US General Support 2022
Partners In Health $1,000 Frederick, MD, US General Support 2022
Pine Street Inn $1,000 Boston, MA, US General Support 2022
Planned Parenthood Federation Of America $1,000 Washington, DC, US General Support 2022
Rosie's Place $1,000 Boston, MA, US General Support 2022
Save The Children $1,000 Fairfield, CT, US General Support 2022
The Farm School $1,000 Athol, MA, US General Support 2022
Nova Ukraine $1,000 Stanford, CA, US General Support 2022
One Plympton Preservation Foundation $1,000 Portland, ME, US General Support 2022
Tomorrow's Education Network $30,000 Towaco, NJ, US General Support 2022
World Central Kitchen $1,000 Washtington, DC, US General Support 2022
Harvard College $9,000 Cambridge, MA, US Harvard College, Harvard Business School, Harvard Athletics Hockey, Harvard Graduate School Of Education 2022
St Paul's School $2,000 Concord, MA, US General Support 2022
Corning Museum Of Glass $20,000 Corning, NY, US President's Resource Fund 2022
Acton Conservation Trust $1,000 Acton, MA, US General Support 2022
Doctors Without Borders $1,000 Hagerstown, MD, US General Support 2022
Green Inspired Art Inc $1,000 New York, NY, US General Support 2022
Equal Justice Initiative $1,000 Montgomery, AL, US General Support 2022
Groundswell $1,000 Brooklyn, NY, US General Support 2022
Habitat For Humanity $1,000 Americus, GA, US General Support 2022
Household Goods Inc $1,000 Acton, MA, US General Support 2022
Human Rights Watch $1,000 New York, NY, US General Support 2022
National Dance Institute $1,000 New York, NY, US General Support 2022
Partners In Health $1,000 Frederick, MD, US General Support 2022
Pine Street Inn $1,000 Boston, MA, US General Support 2022
Planned Parenthood Federation Of America $1,000 Washington, DC, US General Support 2022
Rosie's Place $1,000 Boston, MA, US General Support 2022
Save The Children $1,000 Fairfield, CT, US General Support 2022
The Farm School $1,000 Athol, MA, US General Support 2022
Nova Ukraine $1,000 Stanford, CA, US General Support 2022
One Plympton Preservation Foundation $1,000 Portland, ME, US General Support 2022
Tomorrow's Education Network $30,000 Towaco, NJ, US General Support 2022
World Central Kitchen $1,000 Washtington, DC, US General Support 2022
Harvard College $9,000 Cambridge, MA, US Harvard College, Harvard Business School, Harvard Athletics Hockey, Harvard Graduate School Of Education 2022
St Paul's School $2,000 Concord, MA, US General Support 2022
Corning Museum Of Glass $20,000 Corning, NY, US President's Resource Fund 2022
Acton Conservation Trust $1,000 Acton, MA, US General Support 2022
Doctors Without Borders $1,000 Hagerstown, MD, US General Support 2022
Green Inspired Art Inc $1,000 New York, NY, US General Support 2022
Equal Justice Initiative $1,000 Montgomery, AL, US General Support 2022
Groundswell $1,000 Brooklyn, NY, US General Support 2022
Habitat For Humanity $1,000 Americus, GA, US General Support 2022
Household Goods Inc $1,000 Acton, MA, US General Support 2022
Human Rights Watch $1,000 New York, NY, US General Support 2022
National Dance Institute $1,000 New York, NY, US General Support 2022
Partners In Health $1,000 Frederick, MD, US General Support 2022
Pine Street Inn $1,000 Boston, MA, US General Support 2022
Planned Parenthood Federation Of America $1,000 Washington, DC, US General Support 2022
Rosie's Place $1,000 Boston, MA, US General Support 2022
Save The Children $1,000 Fairfield, CT, US General Support 2022
The Farm School $1,000 Athol, MA, US General Support 2022
Nova Ukraine $1,000 Stanford, CA, US General Support 2022
One Plympton Preservation Foundation $1,000 Portland, ME, US General Support 2022
Tomorrow's Education Network $30,000 Towaco, NJ, US General Support 2022
World Central Kitchen $1,000 Washtington, DC, US General Support 2022
Harvard College $9,000 Cambridge, MA, US Radcliffe Institute, Faculty Of Arts And Sciences, Harvard Business School, Harvard Athletics Hockey 2021
St Paul's School $4,500 Concord, MA, US Alumni Fund And General Support 2021
Purnell School $20,000 Pottersville, NJ, US Annual Fund 2021
Ethical Culture Fieldston School $2,500 New York, NY, US General Support 2021
Corning Museum Of Glass $20,000 Corning, NY, US President's Resource Fund 2021
Washington University In St Louis $2,000 St Louis, MO, US Arts & Sciences Parents Fund 2021
Acton Conservation Trust $1,000 Acton, MA, US Campaign To Protect Stonefield Farm 2021
Doctors Without Borders $1,000 New York, NY, US General Support 2021
Green Inspired Art Inc $1,000 New York, NY, US General Support 2021
Equal Justice Initiative $1,000 Montgomery, AL, US General Support 2021
Marlborough School $3,200 Los Angeles, CA, US General Support 2021
Groundswell $1,000 Brooklyn, NY, US Annual Fund 2021
Habitat For Humanity $1,000 Americus, GA, US General Support 2021
Household Goods Inc $1,000 Acton, MA, US General Support 2021
Human Rights Watch $1,000 New York, NY, US General Support 2021
National Dance Institute $1,000 New York, NY, US Remembrance Of Jacques D'amboise 2021
Partners In Health $1,000 Frederick, MD, US General Support 2021
Pine Street Inn $1,000 Boston, MA, US General Support 2021
Planned Parenthood Federation Of America $1,000 Washington, DC, US General Support 2021
Rosie's Place $1,000 Boston, MA, US General Support 2021
Save The Children $1,000 Fairfield, CT, US General Support 2021
The Farm School $1,000 Athol, MA, US General Support 2021
Harvard College $8,000 Cambridge, MA, US Radcliffe Institute, Faculty Of Arts And Sciences, Harvard Business School, Harvard Athletics Hockey 2020
St Paul's School $3,500 Concord, MA, US Alumni Fund And General Support 2020
Purnell School $15,000 Pottersville, NJ, US Annual Fund 2020
Ethical Culture Fieldston School $2,500 New York, NY, US General Support 2020
Corning Museum Of Glass $20,000 Corning, NY, US President's Resource Fund 2020
Washington University In St Louis $2,000 St Louis, MO, US Arts & Sciences Parents Fund 2020
Hornell Area Concern For Youth $2,000 Hornell, NY, US General Support 2020
Chemung County Child Care Council $2,000 Elmira, NY, US General Support 2020
Green Inspired Art Inc $1,000 New York, NY, US General Support 2020
Dartmouth College $2,500 Hanover, NH, US General Support 2020
Marlborough School $5,000 Los Angeles, CA, US General Support 2020
Harvard University $11,500 Cambridge, MA, US Radcliffe Institute, Faculty Of Arts And Sciences, Harvard Business School 2018
St Paul's School $2,000 Concord, MA, US Alumni Fund 2018
Naacp $2,000 Elmira, NY, US General Support 2018
Ethical Culture Fieldston School $2,500 New York, NY, US Annual Fund 2018
Doctors Without Boarders $1,000 New York, NY, US General Support 2018
Planned Parenthood Federation Of America $1,000 Washington, DC, US General Support 2018
Marlborough School $2,500 Los Angeles, CA, US Arden Capital Campaign, Annual Fund 2018
Corning Community College Development Foundation $20,000 Corning, NY, US Scholarship Fund 2018
Pine Street Inn $1,000 Boston, MA, US General Support 2018
Rosie's Place $1,000 Boston, MA, US General Support 2018
The Farm School $1,000 Athol, MA, US Farm School Foundation 2018
Partners In Health $1,000 Boston, MA, US General Support 2018
Habitat For Humanity International $1,000 Americus, GA, US General Support 2018
Human Rights Campaign Foundation $1,000 Washington, DC, US General Support 2018
Groundswell $1,000 Brooklyn, NY, US Groundswell Community Mural Foundation 2018
Equal Justice Intiative $1,000 Montgomery, AL, US General Support 2018
Save The Children $1,000 Fairfield, CT, US Syrian Children's Relief Fund 2018
Green Inspired Art $1,000 New York, NY, US General Support 2018
Washington University $2,000 St Louis, MO, US General Support 2018
Harvard University $11,000 Cambridge, MA, US Harvard Athletics Hockey, Thomas C. Wales Undgraduate Scholarship Fund, Harvard Business School, Radcliffe Institute For The Radcliffe Fund, Harvard College Fund 2017
St Paul's School $2,000 Concord, MA, US Alumni Fund 2017
Purnell School $15,000 Pottersville, NJ, US Annual Fund 2017
Ethical Culture Fieldston School $2,500 Bronx, NJ, US General Support 2017
Doctors Without Boarders $1,000 Hagerstown, MD, US General Support 2017
Planned Parenthood Federation Of America $1,000 New York, NY, US General Support 2017
Marlborough School $8,800 Los Angeles, CA, US Arden Capital Campaign, Annual Fund 2017
Corning Community College Development Foundation $23,000 Corning, NY, US Scholarship Fund 2017
Pine Street Inn $1,000 Boston, MA, US General Support 2017
Rosie's Place $1,000 Boston, MA, US General Support 2017
The Farm School $500 Athol, MA, US General Support 2017
Partners In Health $1,000 Boston, MA, US General Support 2017
Habitat For Humanity International $1,000 Americus, GA, US General Support 2017
Human Rights Campaign Foundation $1,000 Washington, DC, US Foundation Relations 2017
Groundswell $1,000 Brooklyn, NY, US Summer Leadership Institute 2017
Equal Justice Intiative $1,000 Montgomery, AL, US General Support 2017
Harvard University $11,000 Cambridge, MA, US Harvard Athletics Hockey Thomas C. Wales Undgraduate Scholarship Fund Harvard Business School Radcliffe Institute For The Radcliffe Fund Harvard College Fund 2016
St Paul's School $1,250 Concord, MA, US 2016 Alumni Fund General Support 2016
Fairfield Country Day School $10,000 Fairfield, CT, US 75th Anniversary Campaign 2016
Pomfret School $2,000 Pomfret, CT, US General Support 2016
Dartmouth College $2,500 Hanover, NH, US General Support 2016
Green Inspired Art Inc $1,000 New York, NY, US General Support 2016
Marlborough School $6,000 Los Angeles, CA, US Arden Project Annual Fund 15-16 2016
Corning Community College Development Foundation $24,000 Corning, NY, US Scholarship Fund 2016
Windward School $2,500 Los Angeles, CA, US General Support 2016

Foundations Similar to Third Street Foundation

Discover 5 foundations with comparable assets ($1,373,306-$1,486,745), similar grant patterns, and geographic focus in NH 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: 13-6100032 | 298 grants awarded
$1,444,123
(≈ Similar)
$1,000
median grant
Henniker, NH
Same state
100%
Excellent match

EIN: 02-0227598 | 5 grants awarded
$1,447,294
(≈ Similar)
$1,000
median grant
Woodsville, NH
Same state
99%
Excellent match

EIN: 52-2283343 | 376 grants awarded
$1,480,508
(≈ Similar)
$500
median grant
Center Harbor, NH
Same state
98%
Excellent match

EIN: 04-6846332 | 182 grants awarded
$1,486,745
(≈ Similar)
$1,325
median grant
Londonderry, NH
Same state
98%
Excellent match

EIN: 20-6758711 | 179 grants awarded
$1,373,306
(≈ Similar)
$2,000
median grant
Dover, NH
Same state
98%
Excellent match

Contact Information

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

EIN 26-2535107
Website N/A
Address 2 INTERNATIONAL DR STE 301 Portsmouth, NH 03801-6810

Key People (4)

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

Treasurer K Quincy Houghton
Secretary Sarah Houghton
President Robert W Houghton
Vice President Amory Houghton Iii

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 Third Street 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 March 2026 based on IRS Form 990-PF filings. Foundation information reflects most recent available tax year data.