Nonprofit · EIN 82-0839429
C-CHANGE CONVERSATIONS
Tax-exempt · PRINCETON, NJ 08542
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $319,654 | $254,191 | $65,463 | $430,847 | $0 | $430,847 |
| December 31, 2024 | 990 | $231,138 | $221,963 | $9,175 | $417,500 | $52,116 | $365,384 |
| December 31, 2023 | 990 | $168,650 | $165,319 | $3,331 | $364,310 | $8,101 | $356,209 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $306,365
- Program service revenue
- $3,348
- Investment income
- $10,242
- Net income from fundraising events
- -$301
- Other revenue
- -$301
Expenses
- Grants and similar amounts paid
- $0
- Salaries, compensation and benefits (total)
- $0
- Professional fundraising fees
- $0
- Legal fees
- $8,330
- Accounting fees
- $2,521
- Program services (functional)
- $206,270
- Management and general (functional)
- $25,113
- Fundraising (functional)
- $22,808
Balance sheet and other
- Total assets, start of year
- $417,500
- Total assets, end of year
- $430,847
- Total liabilities, end of year
- $0
- Net assets, end of year
- $430,847
- Publicly traded securities
- $235,821
- Net assets without donor restrictions
- $430,847
- Gross receipts
- $326,633
- Employees
- 0
- Volunteers
- 29
- Year formed
- 2017
- State of legal domicile
- NJ
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| KATHLEEN BIGGINS | PRESIDENT Trustee or director, Officer | 30 | $0 |
| CARRIE DYCKMAN | VICE PRESIDENT Trustee or director, Officer | 20 | $0 |
| MARGARET SEICK | TRUSTEE Trustee or director | 2 | $0 |
| CATHERINE SIDAMON-ERISTOFF | TREASURER Trustee or director, Officer | 10 | $0 |
| PAM PARSONS | TRUSTEE Trustee or director | 5 | $0 |
990 for the year ended December 31, 2024: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| KATHLEEN BIGGINS | PRESIDENT Trustee or director, Officer | 35 | $0 |
| CARRIE DYCKMAN | VICE PRESIDENT Trustee or director, Officer | 12 | $0 |
| MARGARET SEICK | TRUSTEE Trustee or director | 5 | $0 |
| CATHERINE SIDAMON-ERISTOFF | TREASURER Trustee or director, Officer | 8 | $0 |
| PAM PARSONS | TRUSTEE Trustee or director | 5 | $0 |
990 for the year ended December 31, 2023: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| KATHLEEN BIGGINS | PRESIDENT Trustee or director, Officer | 35 | $0 |
| CARRIE DYCKMAN | VICE PRESIDENT Trustee or director, Officer | 12 | $0 |
| KATHY HERRING | SECRETARY Trustee or director, Officer | 3 | $0 |
| CATHERINE SIDAMON-ERISTOFF | TREASURER Trustee or director, Officer | 8 | $0 |
| PAM PARSONS | TRUSTEE Trustee or director | 5 | $0 |
Address and contacts
- Address (IRS master file)
- PO BOX 1206, PRINCETON, NJ 08542-1206
- In care of
- % KATHLEEN BIGGINS
- Mailing address (990-N for 2017)
- PO Box 1206, Princeton NJ 08542
- Principal officer (990 for 2025)
- CATHERINE SIDAMON-ERISTOF, PO BOX 1206, PRINCETON, NJ 08542
- Principal officer (990-N for 2017)
- Catherine Sidamon-Eristoff, PO Box 1206, Princeton NJ 08542
- Signed the 990
- CATHERINE SIDAMON-ERISTOFF, TREASURER
- Phone
- (609) 577-7759
- Return prepared by
- NON-PROFIT ACCOUNTING SOLUTIONS LLC
Mission
C-CHANGE CONVERSATIONS STRIVES TO PRESENT CLIMATE CHANGE NOT AS A POLITICAL ISSUE BUT AS A HUMAN ONE. OUR NONPARTISAN, SCIENCE-BASED EDUCATIONAL OFFERINGS HELP PEOPLE UNDERSTAND HOW CLIMATE CHANGE WILL IMPACT THE PRIORITIES WE ALL VALUE OUR FAMILIES, OUR HEALTH, OUR JOBS, OUR ECONOMY, AND OUR GEOPOLITICAL SECURITY AND DECIDE TO ACT. WE EXPLAIN WHY THERE IS URGENCY TO ACT, AND HOW TO FORGE CONSENSUS FOR ACTION.
Program accomplishments
- C-CHANGE PRIMER PRESENTATIONS: THE "C-CHANGE PRIMER" IS A NON-PARTISAN, MULTIMEDIA PRESENTATION THAT EXPLAINS THE SCIENCE AND EFFECTS OF CLIMATE CHANGE. DEVELOPED IN CONSULTATION WITH SCIENTISTS, BUSINESS LEADERS, AND PUBLIC POLICY EXPERTS, THE PRIMER IS WIDELY HAILED AS AN INTELLIGENT, ACCESSIBLE INTRODUCTION OF CLIMATE CHANGE AND ITS IMPACTS ON OUR HEALTH, ECONOMY, AND GLOBAL SECURITY. CLIMATE SCIENTISTS AND CONSERVATIVE LEADERS ALIKE HAVE RECOGNIZED THE VALUE OF THE PRIMER AND C-CHANGE'S APPROACH. AS DR. BENJAMIN STRAUSS, CEO AND CHIEF SCIENTIST OF CLIMATE CENTRAL, SAID: "C-CHANGE CONVERSATIONS' PRIMER IS AN EXCEEDINGLY EFFECTIVE PRESENTATION OF THE SCIENCE UNDERPINNING CLIMATE CHANGE - IT MAKES COMPLEX CONCEPTS ACCESSIBLE TO ALL AUDIENCES AND HELPS THEM UNDERSTAND THE DIRECT IMPACT ON THEIR OWN LIVES. EVEN AS IT ARTICULATES THE RISKS CLEARLY AND PERSUASIVELY, THE PRIMER ALSO INSTILLS A SENSE OF OPTIMISM THAT HUMANITY CAN MEET THIS CHALLENGE. I HIGHLY RECOMMEND THIS OUTSTANDING C-CHANGE CONVERSATIONS PRIMER TO ASSOCIATIONS, BUSINESSES, AND INDIVIDUALS WHO WANT A CLEAR UNDERSTANDING OF THE ISSUE, PRESENTED IN A NONPARTISAN AND INCLUSIVE MANNER."C-CHANGE HAS DEVELOPED MULTIPLE PRIMERS AND PRESENTATIONS TO MEET THE NEEDS OF SPECIFIC AUDIENCES, INCLUDING: "CLIMATE RISK ASSESSMENT" AN OVERVIEW OF THE SCIENCE OF CLIMATE CHANGE, THE RISKS IT PRESENTS, AND THE TECHNOLOGY IN DEVELOPMENT TO MITIGATE THE EFFECTS. THIS PRIMER IS INTENDED FOR ALL AUDIENCES AND CAN BE TAILORED TO MEET SPECIFIC DEMOGRAPHIC INTERESTS (FOR EXAMPLE, UNIVERSITY STUDENTS, SERVICE ORGANIZATIONS, SOCIAL CLUBS, OR MUNICIPALITY DEPARTMENTS). THIS PRIMER IS ALSO AVAILABLE IN SPANISH "CLIMATE AND OUR HEALTH" A LOOK AT HOW CLIMATE CHANGE IS ENDANGERING OUR HEALTH AND WHAT MEDICAL PROFESSIONALS AND FIRST RESPONDERS SHOULD FACTOR IN THE ISSUE AS THEY PROVIDE CARE. "INVESTMENT: MEETING THE CLIMATE CHALLENGE" A LOOK AT THE IMPACT OF CLIMATE CHANGE ON FINANCIAL MARKETS AND INVESTING OPPORTUNITIES. "INSURANCE IN A CLIMATE CHANGED WORLD" A LOOK AT THE REALITY OF THE CHANGING CLIMATE AND WHAT WE SHOULD CONSIDER TO PROTECT OURSELVES AND OUR COMMUNITIES. "CLIMATE CHANGE AND REAL ESTATE" A LOOK AT THE RISKS TO REAL ESTATE AND MAJOR TRENDS IMPACTING VALUE GOING FORWARD. "PREACHING BEYOND THE CHOIR" A LOOK AT WHY THE U.S. REMAINS DIVIDED ON CLIMATE CHANGE AND HOW OUR MESSAGING BRIDGES THAT PARTISAN GAP. "10 REASONS FOR HOPE" A LOOK AT A DECADE OF PROGRESS IN ADDRESSING CLIMATE CHANGE AND THE SOLUTIONS FOR THE FUTURE.C-CHANGE ALSO PRESENTS PRIMERS ON ZOOM (BOTH PRE-RECORDED AND LIVE) AT PUBLIC AND PRIVATE EVENTS. MOST PRIMER PRESENTATIONS ARE TAILORED TO INCLUDE SPECIFICS ABOUT HOW CLIMATE CHANGE IMPACTS THE SPECIFIC LOCALITY WHERE WE ARE SPEAKING TO FURTHER BUILD PERSONAL UNDERSTANDING AND CONNECTION OF THIS ISSUE. MORE THAN 2,700 INDIVIDUALS IN TEN STATES ATTENDED OUR PRESENTATIONS IN 2025. NOTABLE PRESENTATIONS INCLUDED: GARDEN CLUB OF AMERICA'S NATIONAL AFFAIRS AND LEGISLATION CONFERENCE IN WASHINGTON, DC MEMPHIS UNIVERSITY SCHOOL IN MEMPHIS, TN THE WOMAN'S CLUB IN RICHMOND, VA NEW YORK JUNIOR LEAGUE IN NEW YORK, NY ST. JOHNS RIVERKEEPER IN JACKSONVILLE, FLIN 2025, C-CHANGE ADDED 5 SPEAKERS TO OUR PRESENTATION ROSTER, CONSIDERABLY EXPANDING OUR AVAILABILITY FOR IN-PERSON PROGRAMS. THESE SPEAKERS PARTICIPATED IN AN INTENSIVE YEARLONG TRAINING PROGRAM TO LEARN HOW TO EFFECTIVELY COMMUNICATE ABOUT CLIMATE CHANGE WITH CONSERVATIVE AND MODERATE AUDIENCES. THE NEW SPEAKERS BRING CONNECTIONS TO THEIR PERSONAL AND PROFESSIONAL COMMUNITIES THAT WILL HELP C-CHANGE EXPAND IN MORE MARKETS.SINCE C-CHANGE BEGAN OFFERING PRESENTATIONS IN 2016, WE HAVE REACHED APPROXIMATELY 24,000 AUDIENCE MEMBERS IN 33 STATES AND ABROAD.Expenses $129,658 · revenue $3,348
- C-CHANGE DIGITAL RESOURCES: TO BROADEN OUR EDUCATIONAL REACH BEYOND PRESENTATIONS, C-CHANGE MAKES USE OF A WIDE ARRAY OF DIGITAL RESOURCES. OUR DIGITAL OFFERINGS VIA EMAIL (BLOGS, NEWSLETTERS, ETC.) CONSISTENTLY HAVE ABOVE-AVERAGE OPEN RATES AND VIEW TIMES. MORE THAN 3,000 PEOPLE SUBSCRIBE TO OUR NEWSLETTERS. OUR DIGITAL ACTIVITY INCLUDES: 1. THE C-CHANGECONVERSATIONS.ORG WEBSITE:: FEATURES AN INTRODUCTION TO THE SCIENCE AND EFFECTS OF CLIMATE CHANGE, WAYS TO TAKE ACTION, HOW TO BOOK A PRIMER, NEWSLETTERS, BLOGS, AND MORE. 2. NEWSLETTERS: "CURATED CLIMATE NEWS," A MONTHLY PUBLICATION THAT PROVIDES CONTEXT FOR CLIMATE NEWS OF HOPE AND CONCERN; "CURATED CLIMATE NEWS FOR ATHENS, GA," WHICH FEATURES GEORGIA STATE AND LOCAL NEWS; AND "QUARTERLY" REPORTS THAT SHARE ORGANIZATIONAL NEWS AND PROGRESS. NEWSLETTERS ARE POSTED ON THE WEBSITE AND EMAILED TO OUR SUBSCRIBERS.3. BLOGS: WRITTEN BY C-CHANGE TEAM MEMBERS AND BUSINESS AND EXPERTS ON A VARIETY OF TOPICS, OUR BLOGS SPARK THOUGHT ON IMPACTS AND ACTION. BLOGS ARE POSTED ON THE WEBSITE AND EMAILED TO OUR SUBSCRIBERS. IN 2025, BLOG TOPICS INCLUDED STEPS THAT INDIVIDUALS CAN TAKE TO REDUCE THEIR CLIMATE IMPACT, THE IMPACT OF LIFE-THREATENING FLOODS, AND HOW TO DISCUSS CLIMATE WITHOUT PARTISAN DIVISION. 4. ASK A CLIMATE EXPERT: WEBSITE USERS SUBMIT CLIMATE-RELATED QUESTIONS TO BE ANSWERED BY OUR CONTRIBUTING SCIENTISTS AND TOPIC EXPERTS. ANSWERS ARE POSTED AT THE WEBSITE.5. SOCIAL MEDIA: WE UTILIZE LINKEDIN, FACEBOOK, INSTAGRAM, AND THREADS TO REACH AUDIENCES BEYOND OUR SUBSCRIBER MAILING LIST, PROVIDING INSIGHTS AND PERSPECTIVES ON CLIMATE CHANGE IMPACTS AND NEWS. WE POST OUR NEWSLETTERS AND BLOGS, AS WELL AS EVENT NOTICES.Expenses $41,254
- C-CHANGE'S WEBINARS: C-CHANGE CONTINUES TO BUILD OUR ROSTER OF INTERVIEWS WITH EXPERTS IN CLIMATE, WEATHER, ENERGY, TECHNOLOGY, POLICY, INVESTMENT, INSURANCE, HEALTH, AND MORE. THESE INTERVIEWS ARE FREE AND OPEN TO THE PUBLIC. MOST ARE BROADCAST LIVE VIA ZOOM, THEN POSTED ON OUR WEBSITE.Expenses $35,358
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990 on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 82-0839429
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2018
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Education (B01)
- Assets (IRS master file)
- $430,847
- Income (IRS master file)
- $326,633
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $319,654 | $254,191 | $430,847 | XML |
| 990 | December 2024 | $231,138 | $221,963 | $417,500 | XML |
| 990 | December 2023 | $168,650 | $165,319 | $364,310 | XML |
| 990 | December 2022 | $202,887 | $161,874 | $352,878 | IRS |
| 990-EZ | December 2021 | – | – | – | IRS |
| 990-EZ | December 2020 | – | – | – | IRS |
| 990-EZ | December 2019 | – | – | – | IRS |
| 990-EZ | December 2018 | – | – | – | IRS |
| 990-N for 2017 Officer: Catherine Sidamon-Eristoff | December 31, 2017 | ≤ $50,000 receipts | – | – | e-Postcard |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 82-0839429).
Questions about C-CHANGE CONVERSATIONS
- What is the EIN of C-CHANGE CONVERSATIONS?
- The employer identification number (EIN) of C-CHANGE CONVERSATIONS is 82-0839429.
- Is C-CHANGE CONVERSATIONS tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2018.
- Are donations to C-CHANGE CONVERSATIONS tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does C-CHANGE CONVERSATIONS file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of C-CHANGE CONVERSATIONS due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did C-CHANGE CONVERSATIONS last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2025.
- Who is the principal officer of C-CHANGE CONVERSATIONS?
- The 990 for the year ended December 31, 2025 names CATHERINE SIDAMON-ERISTOF.
- Who are the officers and directors of C-CHANGE CONVERSATIONS?
- The 990 for the year ended December 31, 2025 lists 5 people; 0 received compensation from the organization.
- How much revenue does C-CHANGE CONVERSATIONS have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $319,654, expenses of $254,191 and total assets of $430,847 at year end.
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