Nonprofit · EIN 74-2493011
THE INTERNATIONAL DARK-SKY ASSOCIATION INC
Tax-exempt · TUCSON, AZ 85711
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2024 | 990 | $2,911,140 | $2,508,216 | $402,924 | $2,439,695 | $213,184 | $2,226,511 |
| December 31, 2023 | 990 | $2,090,060 | $1,896,195 | $193,865 | $1,993,896 | $211,214 | $1,782,682 |
Financial details: 990 for the year ended December 31, 2024
Revenue
- Contributions, gifts and grants
- $2,441,145
- Program service revenue
- $392,039
- Investment income
- $44,973
- Net gain from sales of assets
- -$49
- Other revenue
- $32,983
Expenses
- Grants and similar amounts paid
- $3,747
- Compensation of officers, directors and key employees
- $317,507
- Other salaries and wages
- $977,686
- Salaries, compensation and benefits (total)
- $1,521,647
- Professional fundraising fees
- $0
- Legal fees
- $3,544
- Accounting fees
- $76,230
- Occupancy
- $31,451
- Travel
- $99,718
- Depreciation
- $19,570
- Program services (functional)
- $1,768,159
- Management and general (functional)
- $358,629
- Fundraising (functional)
- $381,428
Balance sheet and other
- Total assets, start of year
- $1,993,896
- Total assets, end of year
- $2,439,695
- Total liabilities, end of year
- $213,184
- Net assets, end of year
- $2,226,511
- Land, buildings and equipment
- $45,765
- Publicly traded securities
- $819,451
- Net assets without donor restrictions
- $1,012,242
- Net assets with donor restrictions
- $1,214,269
- Gross receipts
- $3,209,131
- Employees
- 18
- Volunteers
- 2,800
- Year formed
- 1988
- State of legal domicile
- AZ
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, 2024, highest compensation first.
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| RUSKIN HARTLEY | EXECUTIVE DI Officer | 40 | $175,368 | $18,996 |
| BRIAN LIEBEL | CHF PROGRAM Highest-paid employee | 40 | $166,866 | $12,387 |
| SUSAN SERVEN | DIRECTOR OF Highest-paid employee | 40 | $132,603 | $7,356 |
| NICOLE ROSE | CHF FINANCIA Officer | 40 | $123,143 | $0 |
| SERGIO EMILIO MONTUFAR CODONER | DIRECTOR Trustee or director | 2 | $0 | $0 |
| BRAD SCHLESSELMAN | TREASURER Trustee or director, Officer | 4 | $0 | $0 |
| CONNIE WALKER | DIRECTOR Trustee or director, Officer | 4 | $0 | $0 |
| KEVIN GASTON | DIRECTOR Trustee or director | 2 | $0 | $0 |
| MIKE SIMMONS | DIRECTOR Trustee or director | 2 | $0 | $0 |
| SIBYLLE SCHROER | DIRECTOR Trustee or director | 2 | $0 | $0 |
| THOMAS REINERT | PRESIDENT Trustee or director, Officer | 2 | $0 | $0 |
| PAULINA VILLALOBOS | DIRECTOR Trustee or director | 2 | $0 | $0 |
| KEN WALCZAK | SECRETARY Trustee or director, Officer | 2 | $0 | $0 |
| NALAYINI BRITO-DAVIES | VICE PRESIDE Trustee or director, Officer | 4 | $0 | $0 |
| DOUG BARKER | DIRECTOR Trustee or director | 2 | $0 | $0 |
2 more people on this return
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| SAMYUKTA MANIKUMAR | DIRECTOR Trustee or director | 4 | $0 |
| FERNANDO AVILA CASTRO | DIRECTOR Trustee or director | 2 | $0 |
990 for the year ended December 31, 2023: 15 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| RUSKIN HARTLEY | EXECUTIVE DI Officer | 40 | $160,830 | $14,685 |
| DIANE KNUTSON | DIRECTOR Trustee or director, Officer | 8 | $0 | $0 |
| SIBYLLE SCHROER | DIRECTOR Trustee or director | 2 | $0 | $0 |
| THOMAS REINERT | PRESIDENT Trustee or director, Officer | 8 | $0 | $0 |
| BRAD SCHLESSELMAN | TREASURER Trustee or director, Officer | 8 | $0 | $0 |
| CONNIE WALKER | DIRECTOR Trustee or director, Officer | 2 | $0 | $0 |
| MIKE SIMMONS | DIRECTOR Trustee or director | 2 | $0 | $0 |
| KEVIN GASTON | DIRECTOR Trustee or director | 2 | $0 | $0 |
| SERGIO SERGIO MONTUFAR CODONER | DIRECTOR Trustee or director | 2 | $0 | $0 |
| PAULINA VILLALOBOS | DIRECTOR Trustee or director | 2 | $0 | $0 |
| KEN WALCZAK | SECRETARY Trustee or director | 2 | $0 | $0 |
| NALAYINI BRITO-DAVIES | VICE PRESIDE Trustee or director | 4 | $0 | $0 |
| DOUG BARKER | DIRECTOR Trustee or director | 2 | $0 | $0 |
| FERNANDO AVILA CASTRO | DIRECTOR Trustee or director | 2 | $0 | $0 |
| SAMYUKTA MANIKUMAR | DIRECTOR Trustee or director | 2 | $0 | $0 |
Address and contacts
- Address (IRS master file)
- 5049 E BROADWAY BLVD STE 105, TUCSON, AZ 85711-3646
- In care of
- % SUSAN CIARNIELLO
- Principal officer (990 for 2024)
- RUSKIN HARTLEY, 5049 E BROADWAY BLVD 105, TUCSON, AZ 85711
- Signed the 990
- RUSKIN HARTLEY, EXECUTIVE DIRECTOR
- Phone
- (520) 293-3198
- Website
- WWW.DARKSKY.ORG
- Return prepared by
- LUDWIG KLEWER & RUDNER PLLC
Mission
DARKSKY INTERNATIONAL RESTORES THE NIGHTTIME ENVIRONMENT AND PROTECTS COMMUNITIES FROM THE HARMFUL EFFECTS OF LIGHT POLLUTION THROUGH OUTREACH, ADVOCACY, AND CONSERVATION.
Program accomplishments
- DARKSKY'S ENGAGEMENT PROGRAM EMPOWERS INDIVIDUALS AND COMMUNITIES TO PROTECT THE NIGHT FROM LIGHT POLLUTION THROUGH EDUCATION, OUTREACH, AND GRASSROOTS ACTION. IN 2024, THE PROGRAM SUPPORTED MEMBERS, ADVOCATES, AND SUPPORTERS IN ALL 50 U.S. STATES AND MORE THAN 135 COUNTRIES AND TERRITORIES, REINFORCING DARKSKY'S ROLE AS A GLOBAL LEADER IN LIGHT POLLUTION AWARENESS AND SOLUTIONS. IN 2024, DARKSKY WELCOMED APPROXIMATELY 840 NEW ADVOCATES, EXPANDING THE GLOBAL NETWORK TO REPRESENTATIVES FROM 111 COUNTRIES AND TERRITORIES ACROSS SIX CONTINENTS. NEW ENGAGEMENT EFFORTS WERE LAUNCHED IN MONGOLIA, THE UNITED ARAB EMIRATES, AND PARAGUARY, WHILE EXISTING REGIONAL PROGRAMS EXPERIENCES REVITALIZATION AND GROWTH. THESE ACTIVITIES REFLECT AN INCREASING GLOBAL COMMITMENT TO PROTECTING NATURAL NIGHTSCAPES AND ADVANCING COMMUNITY-LED CHANGE. DURING INTERNATIONAL DARK SKY WEEK 2024, DARKSKY AND ITS NETWORK OF CHAPTERS, DELEGATES, AND ADVOCATES REACHED MILLIONS THROUGH INTERNATIONAL MEDIA COVERAGE AND PUBLIC PROGRAMMING, DEMONSTRATING THE GROWTH VISIBILITY AND RESONANCE OF THE DARK SKY MOVEMENT. IN NOVEMBER 2024, DARKSKY HOSTED UNDER ONE SKY 2024, A 24-HOUR VIRTUAL GLOBAL CONFERENCE THAT BROUGHT TOGETHER 950 PARTICIPANTS FROM 53 COUNTRIES. THIS FLAGSHIP EVENT IS A PLATFORM FOR SHARED LEARNING, COLLABORATION, AND STORYTELLING ACROSS TIME ZONES AND CULTURES. NEW AND TRANSLATED EDUCATIONAL RESOURCES, ALONG WITH REGION-SPECIFIC TOOLS, SUPPORTED LOCAL ACTION, RESULTING IN A NOTICEABLE INCREASE IN POLICY- FOCUSED AND ASTROTOURISM-CENTERED DIALOGUE WITH DECISION-MAKERS. THIS UNDERSCORED DARKSKY'S GROWING INFLUENCE AT THE COMMUNITY LEVEL.Expenses $712,079 · grants $3,747 · revenue $21,410
- DARKSKY'S POLICY AND TECHNICAL INITIATIVES ADVANCE THE ADOPTION OF EFFECTIVE LIGHTING PRACTICES AND INFLUENCE STANDARDS WORLDWIDE. IN 2024, DARKSKY EMPOWERED COMMUNITIES, GOVERNMENTS, AND PROFESSIONALS WITH TOOLS, DATA, AND STRATEGIC PARTNERSHIPS TO REDUCE LIGHT POLLUTION AND PROTECT THE NIGHT SKY. DURING INTERNATIONAL DARK SKY WEEK 2024, DARKSKY ADVOCATES AND DELEGATES SECURED 117 OFFICIAL PROCLAMATIONS FROM LOCAL GOVERNMENTS AND COMMUNITIES, RECOGNIZING THE IMPORTANCE OF PROTECTING NATURAL DARKNESS. THESE PROCLAMATIONS WERE GRANTED FROM MORE THAN 200 APPLICATIONS SUBMITTED GLOBALLY, REFLECTING AN EXPANDING RECOGNITION OF LIGHT POLLUTION AS A PUBLIC POLICY CONCERN. TO SUPPORT REGULATORY CHANGE, DARKSKY RELEASED NEW CODES AND STATUTES TEMPLATES, OFFERING MODEL LANGUAGE TO GUIDE COMMUNITIES AND PROFESSIONALS IN CRAFTING EFFECTIVE ORDINANCES THAT REDUCE LIGHT POLLUTION WHILE IMPROVING LIGHTING QUALITY. IN EUROPE, DARKSKY PLAYED A LEADING ROLE IN A CAMPAIGN SUPPORTING THE EUROPEAN LIGHT POLLUTION MANIFESTO, WHICH AIMS TO INTEGRATE LIGHT POLLUTION INTO ENVIRONMENTAL POLICY FRAMEWORKS THAT SAFEGUARD BIODIVERSITY, PUBLIC HEALTH, AND ENERGY EFFICIENCY. AT THE U.S. FEDERAL LEVEL, DARKSKY ENDORSED THE DARK AND QUIET SKIES ACT OF 2024, A PROPOSED U.S. BILL TO ESTABLISH A CENTER OF EXCELLENCE TO ADDRESS THE IMPACT OF SATELLITES ON THE NIGHT SKY AND SUPPORT INNOVATION IN LIGHT POLLUTION MITIGATION. SCIENTIFIC RESEARCH CONTINUED TO INFORM AND STRENGTHEN POLICY THROUGH THE ANNUAL STATE OF THE SCIENCE REPORT, WHICH ADDED 527 NEW PEER-REVIEWED REFERENCES IN 2024, BRINGING THE TOTAL TO OVER 5,000. THESE RESOURCES PROVIDE A FOUNDATION FOR EVIDENCE-BASED DECISION-MAKING AROUND THE WORLD. DARKSKY'S INFLUENCE ALSO GREW WITHIN THE PROFESSIONAL LIGHTING SECTOR. A MEMORANDUM OF UNDERSTANDING SIGNED WITH THE LUCI ASSOCIATION, AN INTERNATIONAL NETWORK OF CITIES ON URBAN LIGHTING, MARKED A SIGNIFICANT STEP TOWARD ALIGNING QUALITY LIGHTING PRACTICES WITH ENVIRONMENTAL RESPONSIBILITY. THE AGREEMENT WAS ANNOUNCED AT LUCI'S ANNUAL CONFERENCE, WHERE DARKSKY DELIVERED THE KEYNOTE ADDRESS, SIGNALING A BROADER CULTURAL SHIFT TOWARD SUSTAINABLE LIGHTING IN URBAN ENVIRONMENTS.Expenses $730,520 · revenue $352,536
- BY THE END OF 2024, THE INTERNATIONAL DARK SKY PLACES PROGRAM HAD DESIGNATED A TOTAL OF 233 CERTIFIED LOCATIONS, COLLECTIVELY PROTECTING OVER 176,000 SQUARE KILOMETERS OF LAND AND NIGHT SKIES IN 39 COUNTRIES AND TERRITORIES ACROSS SIX CONTINENTS. THESE DESIGNATIONS NOT ONLY CONSERVE ECOSYSTEMS AND SUPPORT BIODIVERSITY, BUT ALSO FOSTER COMMUNITY IDENTITY, SUSTAINABLE TOURISM, AND EDUCATIONAL OPPORTUNITIES ROOTED IN THE VALUE OF NATURAL DARKNESS. IN 2024, 28 NEW INTERNATIONAL DARK SKY PLACES WERE APPROVED, INCLUDING DIVERSE LOCATIONS SUCH AS ISLE OF RUM (UNITED KINGDOM), KAIKOURA (NEW ZEALAND), BEAVER ISLAND STATE WILDLIFE RESEARCH AREA (UNITED STATES), AND ALULA MANARA & ALGHARAMEEL NATURE RESERVE (SAUDI ARABIA). EACH DESIGNATION REPRESENTS A LOCAL COMMITMENT TO PRESERVING THE NIGHT SKY THROUGH POLICY, PUBLIC ENGAGEMENT, AND SUSTAINABLE LIGHTING DESIGN. TO ADDRESS LIGHTING CHALLENGES IN COMPLEX, HIGH-IMPACT ENVIRONMENTS, DARKSKY LAUNCHED PILOT RECOGNITION PROGRAMS FOR THE MARINE PORT TERMINAL AND OIL & GAS INDUSTRIES. IN COLLABORATION WITH PORT TAMPA BAY AND THE NEW MEXICO OIL & GAS ASSOCIATION, THESE PILOT EFFORTS DEMONSTRATE HOW INDUSTRY PARTNERS CAN SIGNIFICANTLY REDUCE LIGHT POLLUTION WHILE MAINTAINING OPERATIONAL EFFECTIVENESS. THE RESULTING FRAMEWORKS ARE EXPECTED TO SERVE AS SCALABLE MODELS FOR FUTURE EXPANSION AND ADOPTION ACROSS THESE AND OTHER SECTORS.Expenses $325,560 · revenue $18,093
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 | Not 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
- 74-2493011
- 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
- 1988
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Assets (IRS master file)
- $2,439,695
- Income (IRS master file)
- $3,209,131
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2024 | $2,911,140 | $2,508,216 | $2,439,695 | XML |
| 990 | December 2023 | $2,090,060 | $1,896,195 | $1,993,896 | XML |
| 990 | December 2022 | $2,071,832 | $1,368,218 | $1,739,044 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 2018 | – | – | – | IRS |
| 990 | December 2017 | – | – | – | 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 74-2493011).
Questions about THE INTERNATIONAL DARK-SKY ASSOCIATION INC
- What is the EIN of THE INTERNATIONAL DARK-SKY ASSOCIATION INC?
- The employer identification number (EIN) of THE INTERNATIONAL DARK-SKY ASSOCIATION INC is 74-2493011.
- Is THE INTERNATIONAL DARK-SKY ASSOCIATION INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1988.
- Are donations to THE INTERNATIONAL DARK-SKY ASSOCIATION INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does THE INTERNATIONAL DARK-SKY ASSOCIATION INC 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 THE INTERNATIONAL DARK-SKY ASSOCIATION INC due?
- The return for tax year 2025 (the year ending December 31, 2025) is due May 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did THE INTERNATIONAL DARK-SKY ASSOCIATION INC last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2024.
- Who is the principal officer of THE INTERNATIONAL DARK-SKY ASSOCIATION INC?
- The 990 for the year ended December 31, 2024 names RUSKIN HARTLEY.
- Who are the officers and directors of THE INTERNATIONAL DARK-SKY ASSOCIATION INC?
- The 990 for the year ended December 31, 2024 lists 17 people; 4 received compensation from the organization, the highest $175,368 (RUSKIN HARTLEY, EXECUTIVE DI).
- How much revenue does THE INTERNATIONAL DARK-SKY ASSOCIATION INC have?
- On its 990 for the year ended December 31, 2024 it reported revenue of $2,911,140, expenses of $2,508,216 and total assets of $2,439,695 at year end.
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