Nonprofit · EIN 81-5231484
COLORADO LONGITUDINAL STUDY
Tax-exempt · FORT COLLINS, CO 80524
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $400,058 | $495,074 | -$95,016 | $56,333 | $44,715 | $11,618 |
| December 31, 2024 | 990 | $100,346 | $603,666 | -$503,320 | $151,716 | $45,082 | $106,634 |
| December 31, 2023 | 990 | $222,618 | $412,349 | -$189,731 | $652,746 | $44,852 | $607,894 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $400,051
- Program service revenue
- $0
- Investment income
- $1
- Other revenue
- $6
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $51,000
- Other salaries and wages
- $273,891
- Salaries, compensation and benefits (total)
- $348,565
- Professional fundraising fees
- $0
- Legal fees
- $8,027
- Accounting fees
- $23,316
- Travel
- $2,645
- Depreciation
- $11,472
- Program services (functional)
- $283,878
- Management and general (functional)
- $127,217
- Fundraising (functional)
- $83,979
Balance sheet and other
- Total assets, start of year
- $151,716
- Total assets, end of year
- $56,333
- Total liabilities, end of year
- $44,715
- Net assets, end of year
- $11,618
- Land, buildings and equipment
- $18,789
- Net assets without donor restrictions
- $11,618
- Gross receipts
- $400,058
- Employees
- 6
- Volunteers
- 6
- Year formed
- 2016
- State of legal domicile
- CO
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 |
|---|---|---|---|
| EVAN KING | BOARD VICE C Trustee or director | 15 | $51,000 |
| DONALD ELLIMAN | BOARD MEMBER Trustee or director | 1 | $0 |
| GINGER GRAHAM | BOARD MEMBER Trustee or director | 1 | $0 |
| ALAN RUDOLPH PHD | BOARD MEMBER Trustee or director | 1 | $0 |
| LAWRENCE GOLD PHD | BOARD CHAIR Trustee or director | 4 | $0 |
| NELSON TRUJILLO | BOARD MEMBER Trustee or director | 1 | $0 |
990 for the year ended December 31, 2024: 6 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| MEREDITH GUERRERO | CEO & SECRET Officer | 40 | $101,061 |
| DONALD ELLIMAN | BOARD MEMBER Trustee or director | 1 | $0 |
| GINGER GRAHAM | BOARD MEMBER Trustee or director | 1 | $0 |
| ALAN RUDOLPH PHD | BOARD MEMBER Trustee or director | 1 | $0 |
| LAWRENCE GOLD PHD | BOARD CHAIR Trustee or director | 4 | $0 |
| NELSON TRUJILLO | BOARD MEMBER Trustee or director | 1 | $0 |
990 for the year ended December 31, 2023: 7 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| MEREDITH GUERRERO | CEO & SECRET Officer | 40 | $121,504 | $10,631 |
| PHYLLIS WISE PHD | PRES.,TREAS. Officer | 20 | $37,003 | $0 |
| DONALD ELLIMAN | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| GINGER GRAHAM | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| ALAN RUDOLPH PHD | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| LAWRENCE GOLD PHD | BOARD CHAIR Trustee or director | 2 | $0 | $0 |
| NELSON TRUJILLO | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
Address and contacts
- Address (IRS master file)
- 151 W LAKE ST SUITE 1400, FORT COLLINS, CO 80524-4111
- In care of
- % MEREDITH GRAHAM
- Principal officer (990 for 2025)
- LAWRENCE GOLD PHD, 151 W LAKE STREET SUITE 1400, FORT COLLINS, CO 80523
- Signed the 990
- LAWRENCE GOLD PHD, BOARD CHAIR
- Phone
- (303) 735-7112
- Website
- WWW.COLOSTUDY.ORG
- Return prepared by
- BOULDER CPA GROUP
Mission
ADVANCING THE HEALTH OF PEOPLE THROUGH ADVANCING THE SCIENCE OF MEDICINE. THE COLORADO LONGITUDINAL STUDY (COLS) IS BUILDING THE WORLD'S MOST COMPREHENSIVE LONGITUDINAL COLLECTION OF BIOLOGICAL SPECIMENS MATCHED WITH CLINICAL HEALTH AND SOCIAL DETERMINANTS OF HEALTH DATA. THIS DATA WILL ENABLE RESEARCHERS TO STUDY THE COMPLEX RELATIONSHIPS THAT DETERMINE HEALTH, LEADING TO UNPRECEDENTED ADVANCES IN HEALTH, HEALTH CARE, AND HEALTH EQUITY.
Program accomplishments
- IN 2025, COLS CONTINUED TO STRENGTHEN ITS ORGANIZATIONAL INFRASTRUCTURE AND ADVANCE ITS MISSION THROUGH STRATEGIC PARTNERSHIPS, PARTICIPANT ENGAGEMENT, AND PROGRAM GROWTH. BUILDING ON THE SUCCESSFUL LEADERSHIP TRANSITION INITIATED IN 2024, THE ORGANIZATION MAINTAINED CONTINUITY ACROSS STAFF AND BOARD LEADERSHIP WHILE CONTINUING TO RETAIN KEY TALENT AND INSTITUTIONAL KNOWLEDGE. THE BOARD OF DIRECTORS AND STAFF REMAINED FOCUSED ON EXPANDING PARTICIPANT ENGAGEMENT WITHIN THE COLS PROGRAM. A CONTINUED EMPHASIS WAS PLACED ON RE- ENGAGING PRIOR PARTICIPANTS TO FURTHER STRENGTHEN THE LONGITUDINAL IMPACT AND INTEGRITY OF THE STUDY. THESE EFFORTS SUPPORTED SUSTAINED PARTICIPANT RETENTION AND ENHANCED THE ORGANIZATION'S ABILITY TO COLLECT MEANINGFUL LONG-TERM DATA. DURING 2025, COLS ALSO EXPANDED ITS EXTERNAL PARTNERSHIPS AND COLLABORATIVE INITIATIVES. MOST NOTABLY, COLS BEGAN A COLLABORATION WITH THE CLINTON FOUNDATION TO EXPLORE OPPORTUNITIES FOR INCREASED COMMUNITY ENGAGEMENT, AWARENESS, AND SUPPORT SURROUNDING HEALTHY AGING AND LONGITUDINAL RESEARCH INITIATIVES. IN ADDITION, COLS CONTINUED ITS LONGSTANDING COLLABORATION WITH COLORADO STATE UNIVERSITY'S COLUMBINE HEALTH SYSTEMS CENTER FOR HEALTHY AGING (CHA) AND THE HUMAN PERFORMANCE CLINICAL RESEARCH LABORATORY (HPCRL). THE CHA CONTINUED TO PROVIDE A WELCOMING ENVIRONMENT AND INFRASTRUCTURE FOR PARTICIPANT VISITS, INCLUDING ACCESS TO CLINICAL AND PARTICIPANT PROCESSING FACILITIES. HPCRL STAFF CONTINUED TO SUPPORT THE HOUSING, MONITORING, AND PROCESSING OF BIOLOGICAL SPECIMENS WHILE PROVIDING ADDITIONAL EXPERTISE AND EQUIPMENT AS NEEDED TO SUPPORT ONGOING RESEARCH OPERATIONS. COLS ALSO CONTINUED IMPLEMENTATION AND REFINEMENT OF ITS FUNDRAISING AND DONOR MANAGEMENT SYSTEMS TO BETTER CAPTURE, ORGANIZE, AND TRACK AN EXPANDING PIPELINE OF PROSPECTIVE DONORS AND SUPPORTERS. THESE EFFORTS WERE UNDERTAKEN TO IMPROVE LONG-TERM SUSTAINABILITY AND STRENGTHEN ORGANIZATIONAL CAPACITY FOR FUTURE GROWTH.Expenses $283,878
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
- 81-5231484
- 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
- 2017
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Education (B05)
- Assets (IRS master file)
- $56,333
- Income (IRS master file)
- $400,058
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $400,058 | $495,074 | $56,333 | XML |
| 990 | December 2024 | $100,346 | $603,666 | $151,716 | XML |
| 990 | December 2023 | $222,618 | $412,349 | $652,746 | XML |
| 990 | December 2022 | $544,329 | $558,494 | $843,438 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990-EZ | December 2018 | – | – | – | IRS |
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 81-5231484).
Questions about COLORADO LONGITUDINAL STUDY
- What is the EIN of COLORADO LONGITUDINAL STUDY?
- The employer identification number (EIN) of COLORADO LONGITUDINAL STUDY is 81-5231484.
- Is COLORADO LONGITUDINAL STUDY tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2017.
- Are donations to COLORADO LONGITUDINAL STUDY tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does COLORADO LONGITUDINAL STUDY 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 COLORADO LONGITUDINAL STUDY 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 COLORADO LONGITUDINAL STUDY 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 COLORADO LONGITUDINAL STUDY?
- The 990 for the year ended December 31, 2025 names LAWRENCE GOLD PHD.
- Who are the officers and directors of COLORADO LONGITUDINAL STUDY?
- The 990 for the year ended December 31, 2025 lists 6 people; 1 received compensation from the organization, the highest $51,000 (EVAN KING, BOARD VICE C).
- How much revenue does COLORADO LONGITUDINAL STUDY have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $400,058, expenses of $495,074 and total assets of $56,333 at year end.
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- COLORADO EARLY COLLEGES EIN 20-5470086 · last filed 990 for 2025
- INSTITUTE FOR SHIPBOARD EDUCATION EIN 95-3075415 · last filed 990 for 2025
- RIDGEVIEW CLASSICAL SCHOOLS EIN 84-1567368 · last filed 990 for 2025
- AXIS INTERNATIONAL ACADEMY EIN 83-0824372 · last filed 990 for 2025
- MOUNTAIN SAGE COMMUNITY SCHOOL EIN 27-4313751 · last filed 990 for 2025
- FORT COLLINS MONTESSORI SCHOOL EIN 90-0925441 · last filed 990 for 2025
- NORTHERN COLORADO ACADEMY OF ARTSAND KNOWLEDGE EIN 20-3981564 · last filed 990 for 2025