Funding search · EIN 710935903 · Northbrook, IL
Caerus Foundation
A private foundation (files IRS Form 990-PF). Most private foundations do not take unsolicited applications; the route in is usually a program officer.
- 370
- grants reported
- $42.8M
- total given
- 2022–2024
- filing years
- $50,000
- median grant
Based on grants this organization reported to the IRS for tax years 2022–2024. This is what they filed, not a complete record of their giving, and recent years may be incomplete because filings lag.
What they fund
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Funding pattern
What this funder pays for, at what size, and how to position adjacent work. Read from their filings, with every number checked against the record.
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12 grants matching “audubon” · $3.5M
- $1.0M
National Audubon Society · New York, NY · 2024
Great Lakes Roles and Non-Personnel Support 2022-2025
- $75,000
National Audubon Society · New York, NY · 2024
Get Out The Vote Efforts
- $60,000
Audubon Great Lakes · Chicago, IL · 2024
Wild Indigo Nature Explorations
- $55,000
Madison Audubon Society · Madison, WI · 2024
Madison Audubon's Education Program: Empowering Kids through Discovery!
- $20,000
Madison Audubon Society · Madison, WI · 2024
Conservation Leaders for Tomorrow: Madison Audubon's Internship Program at Faville Grove Sanctuary
- $1.0M
National Audubon Society · New York, NY · 2023
Great Lakes Roles and Non-Personnel Support 2022-2025
- $60,000
Audubon Great Lakes · Chicago, IL · 2023
Wild Indigo: Amplifying Community Conservation Engagement Across the Great Lakes Region
- $55,000
Madison Audubon Society · Madison, WI · 2023
Madison Audubon's Education Program: Empowering Kids through Discovery!
- $20,000
Madison Audubon Society · Madison, WI · 2023
Conservation Leaders for Tomorrow: Madison Audubon's Internship Program at Faville Grove Sanctuary
- $1.0M
National Audubon Society · New York, NY · 2022
Great Lakes Roles and Non-Personnel Support 2022-2025
- $80,000
Madison Audubon Society · Madison, WI · 2022
Madison Audubon's Education Program: Empowering Kids through Discovery!
- $60,000
Audubon Great Lakes · Chicago, IL · 2022
Wild Indigo: Amplifying Community Conservation Engagement Across the Great Lakes Region
Top recipients
Repeat recipients are the strongest signal of whether a funder has an open door or quietly re-funds the same organizations.
- The Halo Trust USA6 grants · $3.9M
- National Audubon Society4 grants · $3.1M
- Mag America6 grants · $2.3M
- Doctors Without Borders USA5 grants · $1.9M
- Mission Graduates25 grants · $1.9M
- The Resurrection Project1 grant · $1.5M
- Global Strategies5 grants · $1.4M
- City Year6 grants · $1.4M
- Tutoring Chicago12 grants · $1.3M
- Partners in Health4 grants · $1.3M
Giving over time
Grant history
The 100 largest of 370 grants.
- $1.5M
The Resurrection Project · Chicago, IL · 2022
Support for key leadership staff, enhanced marketing and communications, and ongoing community programs.
- $1.3M
The Halo Trust USA · Washington, DC · 2023
Transforming HALO's Global Impact through Crosscutting Investment
- $1.2M
The Halo Trust USA · Washington, DC · 2024
Transforming HALO's Global Impact through Crosscutting Investment
- $1.0M
National Audubon Society · New York, NY · 2024
Great Lakes Roles and Non-Personnel Support 2022-2025
- $1.0M
National Audubon Society · New York, NY · 2023
Great Lakes Roles and Non-Personnel Support 2022-2025
- $1.0M
National Audubon Society · New York, NY · 2022
Great Lakes Roles and Non-Personnel Support 2022-2025
- $1.0M
The Halo Trust USA · Washington, DC · 2022
Saving Lives by Investing in Conservation, Women's Empowerment, and Innovation
- $825,000
Mag America · Washington, DC · 2022
Technology and Innovation activities and landmine and cluster munition clearance in Cambodia 2021-2023
- $600,000
Doctors Without Borders USA · New York, NY · 2024
Emergency Response
- $500,000
Neo Philanthropy - State Infrastructure Fund · New York, NY · 2024
General Support in the state of WI
- $500,000
Doctors Without Borders USA · New York, NY · 2023
Emergency Response
- $500,000
Mag America · Washington, DC · 2023
Improving lives and livelihoods in Cambodia through landmine clearance and provision of life saving lessons.
- $500,000
The Energy Foundation · San Francisco, CA · 2023
Environmental Priorities in Wisconsin in 2024
- $500,000
Doctors Without Borders USA · New York, NY · 2022
Emergency Response
- $425,000
City Year · Chciago, IL · 2024
Program implementation at 2 Austin-based schools 2023-2024
- $425,000
City Year · Chciago, IL · 2023
Program implementation at 2 Austin-based schools 2023-2024
- $425,000
City Year · Chicago, IL · 2022
(3) CPS Englewood Schools 2022-24
- $408,030
Mag America · Washington, DC · 2023
Technology and Innovation activities and landmine and cluster munition clearance in Cambodia 2021-2023
- $400,000
National Fish and Wildlife Foundation · Bloomington, MN · 2024
Sustain Our Great Lakes Funding Collaboration
- $400,000
The United States Energy Foundation · San Francisco, CA · 2024
Environmental Priorities in Wisconsin in 2024-2026
- $400,000
National Fish and Wildlife Foundation · Bloomington, MN · 2023
Sustain Our Great Lakes Funding Collaboration
- $400,000
Partners in Health · Boston, MA · 2023
Maternal and Child Health in Haiti and Sierra Leone 2022-2024
- $400,000
Partners in Health · Boston, MA · 2022
Maternal and Child Health in Haiti and Sierra Leone 2022-2024
- $330,000
Ducks Unlimited · Memphis, TN · 2024
Wisconsin Conservation Priorities: RCPP, Advocacy, Restoration, and Land Protection
- $300,000
Global Strategies · Albany, CA · 2024
Core programming and administrative support
- $300,000
Global Strategies · Albany, CA · 2024
Core programming
- $300,000
Tutoring Chicago · Chicago, IL · 2024
General Operating Support 2024-2026
- $300,000
Global Strategies · Albany, CA · 2023
Core programming
- $300,000
Global Strategies · Albany, CA · 2022
Partnering with communities to scale quality healthcare
- $300,000
The Energy Foundation · San Francisco, CA · 2022
Environment Initiatives 2023
- $300,000
Tutoring Chicago · Chicago, IL · 2022
General Operating Support 2022-24
- $250,000
Art Institute of Chicago · Chicago, IL · 2024
CPS Field Trips on Wednesdays and Expanded School Programming
- $250,000
Big Brothers Big Sisters of Metropolitan Chicago · Chicago, IL · 2024
General program support focused on south and west side neighborhoods
- $250,000
Chicago Scholars · Chicago, IL · 2024
Core Programming
- $250,000
Mag America · Washington, DC · 2024
Improving lives and livelihoods in Cambodia through landmine clearance and provision of life saving lessons.
- $250,000
One Million Degrees · Chicago, IL · 2024
Support for Core Programming on the South Side
- $250,000
Partners in Health · Boston, MA · 2024
PIH's Solar Expansion Project at the University Hospital at Mirebalais - Matching Grant
- $250,000
The Halo Trust USA · Washington, DC · 2024
Transforming HALO's Global Impact through Crosscutting Investment
- $250,000
Art Institute of Chicago · Chicago, IL · 2023
CPS Field Trips on Wednesdays and Expanded School Programming
- $250,000
Big Brothers Big Sisters of Metropolitan Chicago · Chicago, IL · 2023
General program support focused on south and west side neighborhoods
- $250,000
Chicago Scholars · Chicago, IL · 2023
Core Programming Support
- $250,000
One Million Degrees · Chicago, IL · 2023
Support for South Side Programs 2022-2024
- $250,000
Tutoring Chicago · Chicago, IL · 2023
General Operating Support 2022-24
- $250,000
Chicago Scholars · Chicago, IL · 2022
Core Programming Support
- $250,000
Doctors Without Borders USA · New York, NY · 2022
Humanitarian Response in Ukraine and neighboring countries
- $250,000
One Million Degrees · Chicago, IL · 2022
Support for South Side Programs 2022-2024
- $225,000
Global Strategies · Albany, CA · 2024
Onboarding a Chief Development Officer
- $225,000
Ducks Unlimited · Memphis, TN · 2022
Restoration Projects and Land Protection Strategies in WI
- $205,000
Mequon Nature Preserve · Mequon, WI · 2023
Mequon Nature Preserve's Farm Wetland Restoration Project
- $200,000
826 Valencia · San Francisco, CA · 2024
Mission and Tenderloin Programs 2023-2024
- $200,000
Fund for Lake Michigan · Milwaukee, WI · 2024
Western Lake Michigan Pooled Fund
- $200,000
Partners in Health · Boston, MA · 2024
Maternal and Child Healthcare in Haiti with a matching grant for expanded maternal and child healthcare in Lesotho
- $200,000
826 Valencia · San Francisco, CA · 2023
Mission and Tenderloin Programs 2023-2024
- $200,000
Fund for Lake Michigan · Milwaukee, WI · 2023
Western Lake Michigan Pooled Fund
- $200,000
Gathering Waters Wisconsin'S Alliance for Land Trusts · Madison, WI · 2023
Public Policy Advocacy and Alternative Funding and Financing for Conservation
- $200,000
The Conservation Fund · Arlington, VA · 2023
The Pelican River Forest Easement project
- $200,000
826 Valencia · San Francisco, CA · 2022
General Operating Support
- $200,000
Big Brothers Big Sisters of Metropolitan Chicago · Chicago, IL · 2022
Big Brothers Big Sisters Englewood/South Side Office
- $191,970
Mag America · Washington, DC · 2022
Technology and Innovation activities and landmine and cluster munition clearance in Cambodia 2021-2023
- $187,762
Mission Graduates · San Francisco, CA · 2022
Promise Scholars Program Management
- $175,000
The Conservation Fund · Arlington, VA · 2024
Ice Age Trail Addition - Zander Property
- $175,000
Wisconsin Conservation Voices · Madison, WI · 2024
General Support
- $175,000
Savanna Institute · Madison, WI · 2023
Scaling Up Agroforestry in Lake Michigan Basin
- $160,000
Mission Graduates · San Francisco, CA · 2024
College to Career Staffing and Programming
- $160,000
Mission Graduates · San Francisco, CA · 2023
College to Career Staffing and Programming
- $157,000
Build · Chicago, IL · 2024
Fastlane Automotive Training Scholarships and Branded Scholar Apparel
- $150,000
Breakthrough Urban Ministries · Chicago, IL · 2024
Nettie Bailey Student Achievement Program
- $150,000
Camfed · San Francisco, CA · 2024
Support for Girls Education and Life Skills Mentoring Programs
- $150,000
Gathering Waters Wisconsin'S Alliance for Land Trusts · Madison, WI · 2024
General Operating Support
- $150,000
Howard Area Community Center · Chicago, IL · 2024
The Clubhouse Teen Program
- $150,000
Michael Fields Agricultural Institute · East Troy, WI · 2024
Expanding Agroforestry in Southeast Wisconsin
- $150,000
The People'S Music School · Chicago, IL · 2024
People's Music School South Side Programs FY24-FY25
- $150,000
Camfed · San Francisco, CA · 2023
Girls' education and life skills mentor programs
- $150,000
Howard Area Community Center · Chicago, IL · 2023
The Clubhouse Teen Program
- $150,000
Panzi Foundation USA · Washington, DC · 2023
Survivors of Sexual Violence Project
- $150,000
Sand County Foundation · Madison, WI · 2023
Innovative agriculture to build soil health, increase climate resilience, and advance a land ethic
- $150,000
The People'S Music School · Chicago, IL · 2023
People's Music School South Side Programs FY24-FY25
- $150,000
Youth Services of Glenview-Northbrook · Glenview, IL · 2023
New Building Capital Campaign
- $150,000
Howard Area Community Center · Chicago, IL · 2022
The Clubhouse Teen Program
- $150,000
Howard Area Community Center · Chicago, IL · 2022
The Clubhouse Teen Expansion
- $150,000
The People'S Music School · Chicago, IL · 2022
The People's Music School South Side Programs
- $150,000
The Prairie Enthusiasts · Viroqua, WI · 2022
Hanley Farm and Mueller Tract land protection
- $130,000
Friends of the Forest Preserves · Chicago, IL · 2023
North Branch Conservation Corps 2021-2023
- $130,000
Friends of the Forest Preserves · Chicago, IL · 2023
North Branch Conservation Corps 2024-2025
- $130,000
Friends of the Forest Preserves · Chicago, IL · 2022
North Branch Conservation Corps 2021-2023
- $127,500
Ducks Unlimited · Memphis, TN · 2023
Wisconsin Lands Program and Horicon Marsh Acquisition Project
- $125,000
Merit School of Music · Chicago, IL · 2024
Merit Music in Communities 2024-2026
- $125,000
Merit School of Music · Chicago, IL · 2024
Merit Music in Communities
- $125,000
Northwoods Land Trust · Eagle River, WI · 2024
Conservation Easement Projects
- $125,000
Paws Chicago · Chicago, IL · 2024
PAWS Chicago PAWS for Life Program 2024-2026
- $125,000
Skyart · Chicago, IL · 2024
Project 3rd Space Teen Programs on South and West Sides
- $125,000
The Anti-Cruelty Society · Chicago, IL · 2024
Access to Care: Community Care 2024-2026
- $125,000
Merit School of Music · Chicago, IL · 2023
Merit Music in Communities
- $125,000
Skyart · Chicago, IL · 2023
Project 3rd Space Teen Programs on South and West Sides
- $125,000
Merit School of Music · Chicago, IL · 2022
Merit music in communities - select partner sites
- $100,000
College Possible · Chicago, IL · 2024
College Possible Chicago High School Programming 2023-2025
- $100,000
First Graduate · San Francisco, CA · 2024
General Operating Support 2023-2025
- $100,000
Gathering Waters Wisconsin'S Alliance for Land Trusts · Madison, WI · 2024
General Operating Support
- $100,000
Living Goods · Oakland, CA · 2024
Support for their Community Health Systems work in Africa
- $100,000
Myagro · New York, NY · 2024
Support for West Africa Programming
Who else funds this kind of work
Same state
- John D and Catherine T MacArthur Foundation (Consolidated)7,100 grants · $1.67B
- The Big Ten Conference60 grants · $3.91B
Similar purposes
- Rsf Social Finance1,743 grants · $145.4M
- The Robert Wood Johnson Foundation13,555 grants · $2.27B
- Peter Kiewit Foundation434 grants · $112.5M
Similar grant size
- Ohio Child Care Resource and Referral16,278 grants · $1.08B
- Gs Donor Advised Philanthropy Fund19,135 grants · $6.79B
- The Chicago Community Trust14,939 grants · $5.82B
Grants already paid are the record; PaperOrbit reads your paper and finds the funders whose record matches it — then explains why.
Search funders like this oneSource: IRS Form 990-PF, Part XV, as filed by the foundation. These are grants already paid — a record of what this funder backs, not an open call.

