Skip to content

Massachusetts · Private foundation

Peter and Ann Lambertus Family Foundatio

Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$14M
Granted FY2024(still arriving)
66
Grants FY2024
76
Organizations funded FY2023
16%
First-time grantees FY2023
Read the full brief
Median grant, FY2024
$15,000
Largest grant, FY2024
$6,000,000
Organizations funded a year
6 to 76
FY2018 to FY2023
States reached, FY2024
14
Total assets, FY2024
$298M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2023, 16% of the organizations Peter and Ann Lambertus Family Foundatio funded were first-time grantees, receiving 1% of its grant dollars.

New vs renewed · share of each year

In FY2023, 99% of grant dollars renewed an existing relationship; $110k went to new ones.

50%100%’19’20’21’22’23
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’19’20’21’22’23
AnimalsArts & CultureEnvironmentPublic BenefitHuman ServicesEducationOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2024still arriving65$14M9%
FY202376$15M16%
FY202262$13M18%
FY202160$16M10%
FY202072$15M29%
FY201965$4.9M92%
FY20186$8kn/a
95% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2018 to 2024.

Health$24MEducation$21MEnvironment$7.3MHousing & Shelter$4.4MAnimals$4.0MArts & Culture$3.0MSocial Science$404kPublic Benefit$247kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

ME
VT
MI
NY
MA
IN
OH
PA
CA
UT
CO
KY
VA
MD
AZ
TN
NC
SC
DC
LA
GA
TX
FL

Top grantees

Largest recipients by total granted, FY2018 to FY2024, and the share of each one’s budget the grants supplied at peak.

Show all 92 grantees
All grantees of Peter and Ann Lambertus Family Foundatio by total granted
GranteeTotal grantedYearsShare of their budget
The Trustees of Reservations$4,570,00065%
Saint Francis House Inc$4,316,000523%
Harwich Conservation Trust$2,190,500513%
Lexington Arts and Crafts Society Inc$860,000652%
Virginia Federation of Humane$469,500475%
Brewster Conservation Trust$411,00059%
Best Friends Animal Society$395,00060%
Vermont Academy$310,00061%
Northeast Coonhound Rescue Inc$310,000764%
Animal Resources of Tidewater$280,000635%
Dana-Farber Cancer Institute Inc$270,00030%
Foundation of the Massachusetts Eye and Ear Infirmary Inc$220,0003n/a
Lexington Symphony Inc$215,000610%
The Heritage Foundation$190,00060%
Dogs Deserve Better Inc$190,000610%
American Enterprise Institute for Public Policy Research$135,00050%
Lynchburg Humane Society Inc$135,00023%
Barrier Island Group for the Arts$130,00051%
Spca of Pittsylvania County Inc$125,000620%
Houndsong Rescue Inc$120,0006n/a
Carolina Coonhound Rescue$120,000617%
Sfc Virginia$115,00056%
Scott County Humane Society Inc$95,00055%
Augusta Dog Adoptions$95,000521%
American Black and Tan Coonhound Rescue Inc$95,00066%
K9 Freedom Rides$85,0004n/a
Gulf Coast Humane Society Inc$81,00051%
Homes for Our Troops Inc$65,00040%
Halifax Dog Squad Inc$65,0006n/a
Hudson Institute Inc$62,00040%
Hound Haven of Lone Pine Inc$60,0006n/a
Cary Memorial Library Foundation Inc$55,00068%
International Fund for Animal Welfare Inc$50,00060%
Twin County Humane Society$45,000319%
Shell Museum and Educational Foundation Inc$45,00051%
Sanibel-Captiva Conservation Foundation$45,00050%
Prager University Foundation$40,00010%
Gary Sinise Foundation$40,00030%
Lexington Historical Society$37,50062%
Cape Cod Museum of Natural History$35,50071%
Boston Symphony Orchestra Inc$35,00050%
Young America's Foundation$32,00030%
Association to Preserve Cape Cod Inc$30,50051%
Page Paws Inc$30,0003n/a
Misfit Hounds$30,00034%
Sweet Virginia Barn Cats$30,000314%
Turning Point USA Inc$30,00020%
Northern Accomack Community Cats$25,0002n/a
National Trust for Historic Preservation in the United States$25,00050%
Semper Fi & America's Fund$25,00020%
The Community Cat Alliance$25,00037%
Fisher House Foundation Inc$25,00020%
Brewster Historical Society Inc$24,50075%
Hound Rescue and Sanctuary$20,0002n/a
All Hounds on Deck Rescue$20,000212%
The London Sanctuary Inc$20,0002n/a
Harwich Historical Society$20,00066%
Robeson County Humane Society Inc$20,00027%
Environmental Working Group$20,00020%
The Sampson Fund for Veterinary Care Inc$20,00025%
Friends of Russell County Animals$18,000146%
Brewster Ponds Coalition$15,00064%
Loudoun Community Cat Coalition$15,00034%
Center for Immigration Studies Inc$15,00011%
Extra Mile Education Foundation$15,00011%
Cato Institute$15,00010%
Friends of Brewster Dog Parkinc$15,00046%
Orange County Humane Society Inc$15,0002n/a
Bipartisan Policy Center Inc$12,00010%
The Family Pantry of Cape Cod Corp$10,00010%
Project Bread-The Walk for Hunger Inc$10,00010%
Crossroads for Kids Inc$10,00010%
Fixing The Boro Inc$10,00017%
Pinewoods Camp Inc$10,00040%
The Union of Concerned Scientists Inc$10,00010%
Institute for Healthcare Improvement$10,00010%
Freedom Service Dogs Inc$10,00010%
Green Dogs Unleashed Inc$10,00012%
Council on Foreign Relations Inc$10,00010%
Fish of Sanibel-Captiva Inc$10,00010%
The Henry L Stimson Center$10,00010%
Foundation for Individual Rights and Expression Inc$8,00020%
Clinic for the Rehabilitation of Wildlife Inc$7,50010%
Agway of Cape Cod Charitable Foundation Inc$6,000220%
Project New Hope Inc$5,00011%
Boston Scottish Fiddle Club Inc$5,0004n/a
New England Equine Rescue - North Inc$5,00011%
Mid-Coast Recreation Center Inc$5,00010%
Folk Arts Center of New England Inc$4,50031%
Mission of Hope Inc Mission of Hope Haiti Inc$2,0001n/a
Paws New England$1,00010%
Seven Stars Arts Center Inc$1,00011%

What it could do for these grantees

Plus 30 recipients with no EIN on record ($59M), not named here.

Where it is load-bearing

Peter and Ann Lambertus Family Foundatio supplied at least a quarter of the budget for 5 of its grantees at some point. The chart plots its 80 largest grantees; load-bearing ones sit top left.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetThe Trustees of Reservations: $4,570,000 over 6y, 4.6% of budgetSaint Francis House Inc: $4,316,000 over 5y, 23% of budgetHarwich Conservation Trust: $2,190,500 over 5y, 13% of budgetLexington Arts and Crafts Society Inc: $860,000 over 6y, 52% of budgetVirginia Federation of Humane: $469,500 over 4y, 75% of budgetBrewster Conservation Trust: $411,000 over 5y, 9.1% of budgetBest Friends Animal Society: $395,000 over 6y, 0.1% of budgetVermont Academy: $310,000 over 6y, 0.6% of budgetNortheast Coonhound Rescue Inc: $310,000 over 7y, 64% of budgetAnimal Resources of Tidewater: $280,000 over 6y, 35% of budgetDana-Farber Cancer Institute Inc: $270,000 over 3y, 0.0% of budgetLexington Symphony Inc: $215,000 over 6y, 9.6% of budgetThe Heritage Foundation: $190,000 over 6y, 0.1% of budgetDogs Deserve Better Inc: $190,000 over 6y, 9.6% of budgetAmerican Enterprise Institute for Public Policy Research: $135,000 over 5y, 0.1% of budgetLynchburg Humane Society Inc: $135,000 over 2y, 3.5% of budgetBarrier Island Group for the Arts: $130,000 over 5y, 1.3% of budgetSpca of Pittsylvania County Inc: $125,000 over 6y, 20% of budgetCarolina Coonhound Rescue: $120,000 over 6y, 17% of budgetSfc Virginia: $115,000 over 5y, 5.8% of budgetScott County Humane Society Inc: $95,000 over 5y, 5.3% of budgetAugusta Dog Adoptions: $95,000 over 5y, 21% of budgetAmerican Black and Tan Coonhound Rescue Inc: $95,000 over 6y, 5.9% of budgetGulf Coast Humane Society Inc: $81,000 over 5y, 0.5% of budgetHomes for Our Troops Inc: $65,000 over 4y, 0.1% of budgetHudson Institute Inc: $62,000 over 4y, 0.1% of budgetCary Memorial Library Foundation Inc: $55,000 over 6y, 8.2% of budgetInternational Fund for Animal Welfare Inc: $50,000 over 6y, 0.0% of budgetTwin County Humane Society: $45,000 over 3y, 19% of budgetShell Museum and Educational Foundation Inc: $45,000 over 5y, 0.8% of budgetSanibel-Captiva Conservation Foundation: $45,000 over 5y, 0.4% of budgetPrager University Foundation: $40,000 over 1y, 0.1% of budgetGary Sinise Foundation: $40,000 over 3y, 0.1% of budgetLexington Historical Society: $37,500 over 6y, 1.8% of budgetCape Cod Museum of Natural History: $35,500 over 7y, 1.1% of budgetBoston Symphony Orchestra Inc: $35,000 over 5y, 0.0% of budgetYoung America's Foundation: $32,000 over 3y, 0.0% of budgetAssociation to Preserve Cape Cod Inc: $30,500 over 5y, 0.7% of budgetMisfit Hounds: $30,000 over 3y, 3.9% of budgetSweet Virginia Barn Cats: $30,000 over 3y, 14% of budgetTurning Point USA Inc: $30,000 over 2y, 0.1% of budgetNational Trust for Historic Preservation in the United States: $25,000 over 5y, 0.0% of budgetSemper Fi & America's Fund: $25,000 over 2y, 0.0% of budgetThe Community Cat Alliance: $25,000 over 3y, 7.5% of budgetFisher House Foundation Inc: $25,000 over 2y, 0.0% of budgetBrewster Historical Society Inc: $24,500 over 7y, 5.4% of budgetAll Hounds on Deck Rescue: $20,000 over 2y, 12% of budgetHarwich Historical Society: $20,000 over 6y, 5.7% of budget

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 80.

Nonprofits that may fit its grantmaking

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

Ibm International FoundationNY16.7× affinity9 shared granteesties to 7 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Ibm International Foundation · Petco Love · Eastern Bank Foundation · Southwest Florida Community Foundation Inc · Best Friends Animal Society · Petsmart Charities Inc · Green Family Charitable Foundation · Cape Cod Foundation Inc · The William H Donner Foundation Inc · BISSELL Pet Foundation · Pedigree Foundation · The American Society for the Prevention of Cruelty to Animals

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

Compare Peter and Ann Lambertus Family Foundatio with peer funders

About Peter and Ann Lambertus Family Foundatio

How much does Peter and Ann Lambertus Family Foundatio give?
Peter and Ann Lambertus Family Foundatio reported 66 grants totaling $13,908,000 in its FY2024 IRS filing. It funded between 6 and 76 organizations a year over FY2018 to FY2023.
What does Peter and Ann Lambertus Family Foundatio fund?
By grant dollars over FY2018 to FY2024, its largest causes are Health (31%), Education (28%), Environment (9%).
Who are Peter and Ann Lambertus Family Foundatio's largest grantees?
By total granted over FY2018 to FY2024: The Trustees of Reservations ($4.6M), Saint Francis House Inc ($4.3M), Harwich Conservation Trust ($2.2M).
Does Peter and Ann Lambertus Family Foundatio fund new organizations?
In FY2023, 16% of the organizations it funded were first-time grantees.
Does Peter and Ann Lambertus Family Foundatio accept unsolicited applications?
Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.
Which funders back the same organizations as Peter and Ann Lambertus Family Foundatio?
Its strongest co-funders, measured against what their size predicts, include Ibm International Foundation, Petco Love, Eastern Bank Foundation.
Where is Peter and Ann Lambertus Family Foundatio based?
Peter and Ann Lambertus Family Foundatio is based in MA.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 123 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990-PF e-file return for fiscal year 2024, released 2024. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

Play a game based on Peter and Ann Lambertus Family Foundatio’s filings →

More from the funding graph