Nonprofit · EIN 53-0052500
COSMOS CLUB
Tax-exempt · WASHINGTON, DC 20008
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| June 30, 2025 | 990 | $18,199,127 | $17,933,618 | $265,509 | $29,756,058 | $7,035,835 | $22,720,223 |
| June 30, 2024 | 990 | $17,668,671 | $17,431,517 | $237,154 | $28,925,081 | $6,975,186 | $21,949,895 |
| June 30, 2023 | 990 | $15,422,975 | $15,737,061 | -$314,086 | $27,163,847 | $6,070,590 | $21,093,257 |
Financial details: 990 for the year ended June 30, 2025
Revenue
- Contributions, gifts and grants
- $103,031
- Program service revenue
- $11,061,598
- Investment income
- $144,347
- Net rental income
- -$56,559
- Net gain from sales of assets
- -$87,863
- Net income from sales of inventory
- $6,895,288
- Other revenue
- $6,890,151
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $799,812
- Other salaries and wages
- $8,831,558
- Salaries, compensation and benefits (total)
- $12,283,729
- Professional fundraising fees
- $0
- Occupancy
- $1,046,620
- Depreciation
- $874,041
Balance sheet and other
- Total assets, start of year
- $28,925,081
- Total assets, end of year
- $29,756,058
- Total liabilities, end of year
- $7,035,835
- Net assets, end of year
- $22,720,223
- Land, buildings and equipment
- $11,567,118
- Publicly traded securities
- $8,127,318
- Net assets without donor restrictions
- $22,590,371
- Net assets with donor restrictions
- $129,852
- Gross unrelated business income
- $1,390,578
- Gross receipts
- $20,771,655
- Employees
- 180
- Volunteers
- 300
- Year formed
- 1878
- State of legal domicile
- DC
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 June 30, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| MITCHELL PLATT | GENERAL MANAGER Officer | 40 | $674,438 | $73,261 |
| CHRISTOPHER BUYNAK | CONTROLLER Highest-paid employee | 40 | $220,269 | $46,822 |
| WILLIAM ROGERS | EXECUTIVE CHEF Highest-paid employee | 40 | $210,669 | $42,409 |
| SANDRA MCDOWELL | ASSISTANT GENERAL MANAGER Highest-paid employee | 40 | $182,507 | $36,635 |
| CHRISTOPHER LINE | BUILDING ENGINEER Highest-paid employee | 40 | $153,596 | $41,234 |
| CAROLYN RUFFNER | DIRECTOR OF HUMAN RESOURCE Highest-paid employee | 40 | $153,169 | $38,164 |
| PETER L WINIK | PRESIDENT 2025, VICE PRESIDENT 2024 Trustee or director, Officer | 7 | $0 | $0 |
| PHILIP J MARION | VICE PRESIDENT 2025 Trustee or director, Officer | 7 | $0 | $0 |
| KEVIN P SHEEHAN | TREASURER 2024 - 2025 Trustee or director, Officer | 7 | $0 | $0 |
| MARK D YOUNG | SECRETARY 2025 Trustee or director, Officer | 7 | $0 | $0 |
| MIRIAM MCINTIRE NISBET | SECRETARY 2024 Trustee or director, Officer | 7 | $0 | $0 |
| SUSAN FARRELL | ASST. SECRETARY 2024 - 2025 Trustee or director, Officer | 7 | $0 | $0 |
| KATARINA A J WEIR | ASST. TREASURER Trustee or director, Officer | 7 | $0 | $0 |
| ARTHUR E WISE | PAST PRESIDENT 2025, PRESIDENT 2024 Trustee or director, Officer | 7 | $0 | $0 |
| LEE ANN POTTER | BOARD MEMBER 2024 - 2025 Trustee or director | 4 | $0 | $0 |
10 more people on this return
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| DOUGLAS B KAMEROW | BOARD MEMBER 2024 - 2025 Trustee or director | 4 | $0 |
| MARK E GREENWOLD | BOARD MEMBER 2024 - 2025 Trustee or director | 4 | $0 |
| THOMAS B COCHRAN | BOARD MEMBER 2024 - 2025 Trustee or director | 4 | $0 |
| PAUL A ECKERT | BOARD MEMBER 2024 - 2025 Trustee or director | 4 | $0 |
| ZOE CB SHARP | BOARD MEMBER 2024 - 2025 Trustee or director | 4 | $0 |
| C NASEER AHMAD | BOARD MEMBER 2025 Trustee or director | 4 | $0 |
| JOHN W FRANKLIN | BOARD MEMBER 2025 Trustee or director | 4 | $0 |
| PAMELA GREIFELD SHORTAL | BOARD MEMBER 2025 Trustee or director | 4 | $0 |
| SHERMAN E KATZ | BOARD MEMBER 2024 Trustee or director | 4 | $0 |
| E WILLIAM COLGLAZIER | BOARD MEMBER 2024 Trustee or director | 4 | $0 |
990 for the year ended June 30, 2024: 25 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| MITCHELL PLATT | GENERAL MANAGER Officer | 40 | $526,308 | $54,192 |
| CHRISTOPHER BUYNAK | CONTROLLER Highest-paid employee | 40 | $211,365 | $39,382 |
| WILLIAM ROGERS | EXECUTIVE CHEF Highest-paid employee | 40 | $196,619 | $34,293 |
| SANDRA MCDOWELL | ASSISTANT GENERAL MANAGER Highest-paid employee | 40 | $174,465 | $32,161 |
| CHRISTOPHER LINE | BUILDING ENGINEER Highest-paid employee | 40 | $149,096 | $40,624 |
| EUN YIM | DIRECTOR OF FOOD AND BEVERAGES Former | 40 | $139,823 | $27,490 |
| CAROLYN RUFFNER | DIRECTOR OF HUMAN RESOURCE Highest-paid employee | 40 | $134,219 | $29,656 |
| MICHAEL N POCALYKO | PAST PRESIDENT 2024, PRESIDENT 2023 Trustee or director, Officer | 7 | $0 | $0 |
| ARTHUR E WISE | PRESIDENT 2024, VICE PRESIDENT 2023 Trustee or director, Officer | 7 | $0 | $0 |
| ZOE CB SHARP | TREASURER 2023 Trustee or director, Officer | 7 | $0 | $0 |
| MIRIAM MCINTIRE NISBET | SECRETARY 2023 - 2024 Trustee or director, Officer | 7 | $0 | $0 |
| SUSAN FARRELL | ASST. SECRETARY 2024 Trustee or director, Officer | 7 | $0 | $0 |
| PETER L WINIK | VICE PRESIDENT 2024 Trustee or director, Officer | 7 | $0 | $0 |
| KEVIN P SHEEHAN | TREASURER 2024, ASST. TREASURER 2023 Trustee or director, Officer | 7 | $0 | $0 |
| E WILLIAM COLGLAZIER | BOARD MEMBER 2023 - 2024 Trustee or director | 4 | $0 | $0 |
| MARK E GREENWOLD | BOARD MEMBER 2023 - 2024 Trustee or director | 4 | $0 | $0 |
| PAUL A ECKERT | BOARD MEMBER 2023 - 2024 Trustee or director | 4 | $0 | $0 |
| PHILIP J MARION | BOARD MEMBER 2023 - 2024 Trustee or director | 4 | $0 | $0 |
| SHERMAN E KATZ | BOARD MEMBER 2023 - 2024 Trustee or director | 4 | $0 | $0 |
| THOMAS B COCHRAN | BOARD MEMBER 2023 - 2024 Trustee or director | 4 | $0 | $0 |
| LEE ANN POTTER | BOARD MEMBER 2024 Trustee or director | 4 | $0 | $0 |
| DOUGLAS B KAMEROW | BOARD MEMBER 2024 Trustee or director | 4 | $0 | $0 |
| CLARION E JOHNSON | BOARD MEMBER 2023 Trustee or director | 4 | $0 | $0 |
| D ELIZABETH CROMPTON | BOARD MEMBER 2023 Trustee or director | 4 | $0 | $0 |
| ABIGAIL RIAN EVANS | BOARD MEMBER 2023 Trustee or director | 4 | $0 | $0 |
990 for the year ended June 30, 2023: 27 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| MITCHELL PLATT | GENERAL MANAGER Officer | 40 | $440,000 | $54,980 |
| CHRISTOPHER BUYNAK | CONTROLLER Highest-paid employee | 40 | $187,500 | $41,251 |
| WILLIAM ROGERS | EXECUTIVE CHEF Highest-paid employee | 40 | $187,801 | $39,589 |
| SANDRA MCDOWELL | ASSISTANT GENERAL MANAGER Highest-paid employee | 40 | $169,250 | $33,427 |
| CHRISTOPHER LINE | BUILDING ENGINEER Highest-paid employee | 40 | $143,317 | $37,680 |
| CAROLYN RUFFNER | DIRECTOR OF HUMAN RESOURCES Highest-paid employee | 40 | $123,100 | $33,728 |
| EUN YIM | DIRECTOR OF FOOD AND BEVERAGE Highest-paid employee | 40 | $127,300 | $26,812 |
| MARK LINQUIST | EXECUTIVE SOUS CHEF Highest-paid employee | 40 | $111,158 | $28,868 |
| JAMES LOWDER | DIRECTOR OF HOUSEKEEPING Highest-paid employee | 40 | $102,250 | $9,855 |
| MICHAEL N POCALYKO | PRESIDENT 2023, VICE PRESIDENT 2022 Trustee or director, Officer | 7 | $0 | $0 |
| ARTHUR E WISE | VICE PRESIDENT 2023 Trustee or director, Officer | 7 | $0 | $0 |
| ZOE CB SHARP | TREASURER 2022 -2023 Trustee or director, Officer | 7 | $0 | $0 |
| MIRIAM MCINTIRE NISBET | SECRETARY 2023, BOARD MEMBER 2022 Trustee or director, Officer | 7 | $0 | $0 |
| JANICE KOCH | SECRETARY 2022 Trustee or director, Officer | 7 | $0 | $0 |
| ELIZABETH L C BECK | PAST PRESIDENT 2023, PRESIDENT 2022 Trustee or director, Officer | 4 | $0 | $0 |
| KEVIN P SHEEHAN | ASST. TREASURER 2022 - 2023 Trustee or director, Officer | 4 | $0 | $0 |
| PHILIP J MARION | BOARD MEMBER 2022 - 2023 Trustee or director | 4 | $0 | $0 |
| SHERMAN E KATZ | BOARD MEMBER 2022 - 2023 Trustee or director | 4 | $0 | $0 |
| D ELIZABETH CROMPTON | BOARD MEMBER 2022 - 2023 Trustee or director | 4 | $0 | $0 |
| ABIGAIL RIAN EVANS | BOARD MEMBER 2022 - 2023 Trustee or director | 4 | $0 | $0 |
| CLARION E JOHNSON | BOARD MEMBER 2022 - 2023 Trustee or director | 4 | $0 | $0 |
| THOMAS B COCHRAN | BOARD MEMBER 2023 Trustee or director | 4 | $0 | $0 |
| E WILLIAM COLGLAZIER | BOARD MEMBER 2023 Trustee or director | 4 | $0 | $0 |
| PAUL A ECKERT | BOARD MEMBER 2023 Trustee or director | 4 | $0 | $0 |
| MARK E GREENWOLD | BOARD MEMBER 2023 Trustee or director | 4 | $0 | $0 |
| RICHARD B HERZOG | BOARD MEMBER 2022 Trustee or director | 4 | $0 | $0 |
| SUSAN J KOCH | BOARD MEMBER 2022 Trustee or director | 4 | $0 | $0 |
Address and contacts
- Address (IRS master file)
- 2121 MASSACHUSETTS AVE NW, WASHINGTON, DC 20008-3639
- Principal officer (990 for 2024)
- KEVIN SHEEHAN, 2121 MASSACHUSETTS AVENUE NW, WASHINGTON, DC 20008
- Signed the 990
- KEVIN SHEEHAN, TREASURER
- Phone
- (202) 387-7783
- Website
- WWW.COSMOSCLUB.ORG
- Return prepared by
- PBMARES LLP
Mission
THE ORGANIZATION'S MISSION IS TO ADVANCE AND ENHANCE THE INTERESTS AND PUBLIC EXPRESSION OF ITS MEMBERS IN SCIENCE, LITERATURE, AND THE ARTS; THEIR MUTUAL IMPROVEMENT BY SOCIAL INTERACTION; AND THE MAINTENANCE OF A LIBRARY AND OTHER PERMANENT COLLECTIONS. A COMMON THEME AMONG THE MEMBERS OF THE COSMOS CLUB IS THEIR RELATION WITH SCHOLARSHIP, CREATIVE GENIUS, OR INTELLECTUAL DISTINCTION.
Program accomplishments
- THE CLUB PROVIDES DINING, HOSPITALITY SERVICES, AND OVERNIGHT LODGING FOR ITS 2535 MEMBERS AND THEIR GUESTS AS WELL AS FOR MEMBERS IN GOOD STANDING OF CERTAIN CLUBS IN OTHER GEOGRAPHIC LOCATIONS, WHERE RECIPROCAL CONTRACTUAL ARRANGEMENTS HAVE BEEN MADE.
- THE CLUB PRODUCES A ROBUST CATALOG OF EDUCATIONAL, SCIENTIFIC, CULTURAL, ARTISTIC, MUSICAL, LITERARY AND OTHER PROGRAMS FOR ITS MEMBERS AND THEIR GUESTS.
- THE CLUB OWNS AND MAINTAINS THE HISTORIC TOWNSEND MANSION IN WASHINGTON DC'S DUPONT CIRCLE NEIGHBORHOOD, WITH ITS SURROUNDING GARDENS. AT CERTAIN PRE-ARRANGED TIMES, TOURS OF THE PUBLIC AREAS OF THE CLUB ARE GIVEN TO THE PUBLIC, BY VOLUNTEER DOCENTS WHO ARE MEMBERS OF THE CLUB. THE CLUB MAINTAINS A SIZABLE LIBRARY AND DISPLAYS WORKS OF ART FROM ITS PERMANENT COLLECTION AND IN TEMPORARY EXHIBITS ON A ROTATING BASIS.
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 June, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | June 30, 2026 | November 16, 2026 | Not due yet |
| 2024 | June 30, 2025 | November 17, 2025 | 990 on file |
| 2023 | June 30, 2024 | November 15, 2024 | 990 on file |
IRS record
- EIN
- 53-0052500
- Tax-exempt status
- 501(c)(7): Social or recreational club
- Donations deductible
- No
- Exempt since
- 1932
- Accounting year ends
- June
- Files
- Form 990 or 990-EZ
- Assets (IRS master file)
- $29,756,058
- Income (IRS master file)
- $20,771,655
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | June 2025 | $18,199,127 | $17,933,618 | $29,756,058 | IRS |
| 990 | June 2024 | $17,668,671 | $17,431,517 | $28,925,081 | IRS |
| 990 | June 2023 | $15,422,975 | $15,737,061 | $27,163,847 | XML |
| 990 | June 2022 | $14,163,911 | $13,131,013 | $27,155,391 | IRS |
| 990 | June 2021 | – | – | – | IRS |
| 990 | June 2020 | – | – | – | IRS |
| 990 | June 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 53-0052500).
Questions about COSMOS CLUB
- What is the EIN of COSMOS CLUB?
- The employer identification number (EIN) of COSMOS CLUB is 53-0052500.
- Is COSMOS CLUB tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(7) since 1932.
- Are donations to COSMOS CLUB tax-deductible?
- No. The IRS master file says contributions to it are not deductible.
- Which annual return does COSMOS CLUB 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 COSMOS CLUB due?
- The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did COSMOS CLUB last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended June 2025.
- Who is the principal officer of COSMOS CLUB?
- The 990 for the year ended June 30, 2025 names KEVIN SHEEHAN.
- Who are the officers and directors of COSMOS CLUB?
- The 990 for the year ended June 30, 2025 lists 25 people; 6 received compensation from the organization, the highest $674,438 (MITCHELL PLATT, GENERAL MANAGER).
- How much revenue does COSMOS CLUB have?
- On its 990 for the year ended June 30, 2025 it reported revenue of $18,199,127, expenses of $17,933,618 and total assets of $29,756,058 at year end.
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