Nonprofit · EIN 52-0668166
MARYLAND SCIENCE CENTER
Tax-exempt · BALTIMORE, MD 21230
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| June 30, 2025 | 990 | $10,446,810 | $8,677,833 | $1,768,977 | $43,891,852 | $4,855,930 | $39,035,922 |
| June 30, 2024 | 990 | $12,943,076 | $8,283,618 | $4,659,458 | $41,031,936 | $4,610,402 | $36,421,534 |
Financial details: 990 for the year ended June 30, 2025
Revenue
- Contributions, gifts and grants
- $5,938,194
- of which government grants
- $2,725,560
- Program service revenue
- $3,261,716
- Investment income
- $465,854
- Net rental income
- $104,886
- Net gain from sales of assets
- -$63,016
- Net income from fundraising events
- $99,432
- Net income from sales of inventory
- $337,829
- Other revenue
- $781,046
Expenses
- Grants and similar amounts paid
- $13,000
- Compensation of officers, directors and key employees
- $506,344
- Other salaries and wages
- $3,312,705
- Salaries, compensation and benefits (total)
- $4,484,092
- Professional fundraising fees
- $0
- Legal fees
- $1,477
- Accounting fees
- $51,250
- Occupancy
- $454,819
- Travel
- $19,574
- Depreciation
- $1,322,871
- Program services (functional)
- $5,959,336
- Management and general (functional)
- $2,302,827
- Fundraising (functional)
- $415,670
Balance sheet and other
- Total assets, start of year
- $41,031,936
- Total assets, end of year
- $43,891,852
- Total liabilities, end of year
- $4,855,930
- Net assets, end of year
- $39,035,922
- Land, buildings and equipment
- $23,529,450
- Publicly traded securities
- $12,965,381
- Net assets without donor restrictions
- $34,877,966
- Net assets with donor restrictions
- $4,157,956
- Gross unrelated business income
- -$20,814
- Gross receipts
- $13,157,561
- Employees
- 209
- Volunteers
- 36
- Year formed
- 1826
- State of legal domicile
- MD
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 |
|---|---|---|---|---|
| MARK J POTTER | PRESIDENT & CEO Trustee or director, Officer | 40 | $266,116 | $20,146 |
| MARTHA PERREAULT | SENIOR DIRECTOR OF DEVELOP Highest-paid employee | 40 | $129,751 | $14,336 |
| LORI S BLAU | SENIOR DIRECTOR OF OPERATI Highest-paid employee | 40 | $118,652 | $19,590 |
| KELLY S MILLER | TREASURER Trustee or director, Officer | 40 | $128,931 | $7,434 |
| CHRISTOPHER CROPPER | SENIOR DIRECTOR OF MARKETI Highest-paid employee | 40 | $121,369 | $7,424 |
| MATT KAHN | TRUSTEE Trustee or director | 2 | $0 | $0 |
| ELLINGTON CHRUCHILL JR | TRUSTEE Trustee or director | 2 | $0 | $0 |
| ELLEN F MYERS | TRUSTEE Trustee or director | 2 | $0 | $0 |
| ERIC T COSTELLO | TRUSTEE Trustee or director | 2 | $0 | $0 |
| DOUG DOLLENBERG JR | TRUSTEE Trustee or director | 2 | $0 | $0 |
| JENNIFER NICKOLES PHD | TRUSTEE Trustee or director | 2 | $0 | $0 |
| TIMOTHY J GALPIN | TRUSTEE Trustee or director | 2 | $0 | $0 |
| SAUL E GILSTEIN | TRUSTEE Trustee or director | 2 | $0 | $0 |
| PAMELA W GRAY CPA MBA | TRUSTEE Trustee or director | 2 | $0 | $0 |
| JOHN W GREENE JR | TRUSTEE Trustee or director | 2 | $0 | $0 |
21 more people on this return
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| SUVI GEZARI PHD | TRUSTEE Trustee or director | 2 | $0 |
| NACOLE D LEE | TRUSTEE Trustee or director | 2 | $0 |
| LAUREL MAGRUDER | TRUSTEE Trustee or director | 2 | $0 |
| CORY MCCRAY | TRUSTEE Trustee or director | 2 | $0 |
| DANIEL F MCGUIRE | TRUSTEE Trustee or director | 2 | $0 |
| ANDREW C MERKLE D ENG | TRUSTEE Trustee or director | 2 | $0 |
| DAVID OESTREICHER | TRUSTEE Trustee or director | 2 | $0 |
| TAYO OKUNSEINDE | TRUSTEE Trustee or director | 2 | $0 |
| SCOTT PURNELL | TRUSTEE Trustee or director | 2 | $0 |
| KATHY ROSTKOWSKI PHD | TRUSTEE Trustee or director | 2 | $0 |
| ALEX SMITH | TRUSTEE Trustee or director | 2 | $0 |
| SCOTT R SOMERVILLE | TRUSTEE Trustee or director | 2 | $0 |
| FRANCIE SPAHN ESQ | TRUSTEE Trustee or director | 2 | $0 |
| MOLLIE THOMPSON | TRUSTEE Trustee or director | 2 | $0 |
| JAMES TURNER PHD | TRUSTEE Trustee or director | 2 | $0 |
| SHAUNDRA TURNER JONES | TRUSTEE Trustee or director | 2 | $0 |
| CHRIS VAN SWOL | TRUSTEE Trustee or director | 2 | $0 |
| BRANDON WHITE | TRUSTEE Trustee or director | 2 | $0 |
| MARK ZIMMERLY | CHAIRMAN Trustee or director, Officer | 2 | $0 |
| JIM MCHUGH | VICE CHAIRMAN Trustee or director, Officer | 2 | $0 |
| LORI A SMITH | EXECUTIVE SECRETARY Trustee or director, Officer | 40 | $0 |
990 for the year ended June 30, 2024: 36 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| MARK J POTTER | PRESIDENT & CEO Trustee or director, Officer | 40 | $249,534 | $19,951 |
| LORI S BLAU | SENIOR DIRECTOR OF OPERATIONS Highest-paid employee | 40 | $109,751 | $17,739 |
| KELLY S MILLER | TREASURER Trustee or director, Officer | 40 | $119,218 | $6,721 |
| MARTHA PERREAULT | SENIOR DIRECTOR OF DEVELOPMENT Highest-paid employee | 40 | $112,560 | $12,450 |
| CHRISTOPHER CROPPER | SENIOR DIRECTOR OF MARKETING AND STRATEGY Highest-paid employee | 40 | $111,778 | $6,915 |
| MORGAN T WINKLER | SECRETARY Trustee or director, Officer | 40 | $32,938 | $4,744 |
| MATT KAHN | TRUSTEE Trustee or director | 2 | $0 | $0 |
| ELLINGTON CHRUCHILL JR | TRUSTEE Trustee or director | 2 | $0 | $0 |
| ELLEN F MYERS | TRUSTEE Trustee or director | 2 | $0 | $0 |
| ERIC T COSTELLO | TRUSTEE Trustee or director | 2 | $0 | $0 |
| DOUG DOLLENBERG JR | TRUSTEE Trustee or director | 2 | $0 | $0 |
| JENNIFER NICKOLES PHD | TRUSTEE Trustee or director | 2 | $0 | $0 |
| TIMOTHY J GALPIN | TRUSTEE Trustee or director | 2 | $0 | $0 |
| SAUL E GILSTEIN | TRUSTEE Trustee or director | 2 | $0 | $0 |
| PAMELA W GRAY CPA MBA | TRUSTEE Trustee or director | 2 | $0 | $0 |
| JOHN W GREENE JR | TRUSTEE Trustee or director | 2 | $0 | $0 |
| MARY HYMAN | TRUSTEE Trustee or director | 2 | $0 | $0 |
| NACOLE D LEE | TRUSTEE Trustee or director | 2 | $0 | $0 |
| LAUREL MAGRUDER | TRUSTEE Trustee or director | 2 | $0 | $0 |
| SCOTT H MARDER | TRUSTEE Trustee or director | 2 | $0 | $0 |
| DANIEL F MCGUIRE | TRUSTEE Trustee or director | 2 | $0 | $0 |
| LORI NEELY | TRUSTEE Trustee or director | 2 | $0 | $0 |
| DAVID OESTREICHER | TRUSTEE Trustee or director | 2 | $0 | $0 |
| TAYO OKUNSEINDE | TRUSTEE Trustee or director | 2 | $0 | $0 |
| SCOTT PURNELL | TRUSTEE Trustee or director | 2 | $0 | $0 |
| PAUL ROTHMAN PHD | TRUSTEE Trustee or director | 2 | $0 | $0 |
| ALEX SMITH | TRUSTEE Trustee or director | 2 | $0 | $0 |
| SCOTT R SOMERVILLE | TRUSTEE Trustee or director | 2 | $0 | $0 |
| FRANCIE COHEN SPAHN | TRUSTEE Trustee or director | 2 | $0 | $0 |
| MOLLIE THOMPSON | TRUSTEE Trustee or director | 2 | $0 | $0 |
| JAMES TURNER PHD | TRUSTEE Trustee or director | 2 | $0 | $0 |
| SHAUNDRA TURNER JONES | TRUSTEE Trustee or director | 2 | $0 | $0 |
| CHRIS VAN SWOL | TRUSTEE Trustee or director | 2 | $0 | $0 |
| BRANDON WHITE | TRUSTEE Trustee or director | 2 | $0 | $0 |
| MARK ZIMMERLY | CHAIRMAN Trustee or director, Officer | 2 | $0 | $0 |
| JIM MCHUGH | VICE CHAIRMAN Trustee or director, Officer | 2 | $0 | $0 |
Address and contacts
- Address (IRS master file)
- 601 LIGHT ST, BALTIMORE, MD 21230-3803
- In care of
- % JOANNE MCNEALY
- Principal officer (990 for 2024)
- KELLY MILLER, 601 LIGHT STREET, BALTIMORE, MD 21230
- Signed the 990
- KELLY MILLER, TREASURER
- Phone
- (410) 685-2370
- Website
- WWW.MDSCI.ORG
- Return prepared by
- GROSS MENDELSOHN & ASSOCIATES PA
Mission
TO STIMULATE AND CULTIVATE AWARENESS, INTEREST, AND UNDERSTANDING OF SCIENCE FOR ALL RESIDENTS OF AND VISITORS TO MARYLAND THROUGH EXCELLENT AND EXCITING EDUCATIONAL PROGRAMS AND EXHIBITS, AND TO BE A REGIONAL RESOURCE AND A NATIONAL MODEL OF SCIENCE EDUCATION.
Program accomplishments
- EDUCATIONAL COURSES - EDUCATOR LED ENRICHMENT EXPERIENCES ENHANCE THE FIELD TRIP VISIT BY OFFERING AN IN-DEPTH LOOK AT THE SCIENTIFIC PRINCIPLES AND PHENOMENA THESE COURSES LAY THE GROUND FOR TEACHERS TO CONTINUE THE FIELD TRIP POST-VISIT.Expenses $2,656,009 · grants $13,000 · revenue $672,717
- EXHIBITS - BY TAKING SCHOOL CHILDREN OUT OF THE CLASSROOM AND INTO THE IMMERSIVE ENVIRONMENT OF THE SCIENCE CENTER, CHILDREN EXPERIENCE SCIENCE IN A HANDS-ON WAYS THAT HELPS ILLUSTRATE LESSONS THEY HAVE LEARNED IN SCHOOLSExpenses $1,326,077
- IMAX THEATRE AND DAVIS PLANETARIUM - IMAX FILMS, ESPECIALLY THE DOCUMENTARY FORMAT, TAKE STUDENTS ON A JOURNEY TO PLACES THEY MAY NEVER ACTUALLY VISIT AND HELP ILLUSTRATE THE WONDERS OF NATURE, OUTER SPACE, AND SCIENTIFIC PHENOMENA. THE DOMED THEATER OF THE PLANETARIUM CAN BRING ASTRONOMY DOWN TO THE INTIMATE LEVEL FOR CLOSE EXAMINATION OF PLANETS AND STARS THAT ARE LIGHT YEARS AWAY.Expenses $1,216,119 · revenue $248,014
- GUEST SERVICES - COMMITTED TO UNHINDERED ACCESS, THE SCIENCE CENTER'S GUEST SERVICES STAFF ENSURES THAT EVERYONE WHO WANTS TO EXPERIENCE ALL THE INSTITUTION HAS TO OFFER CAN DO SO REGARDLESS OF DISABILITY OR OTHER ACCESS CHALLENGES.SCIENCE STORE - THE STORE PROVIDES EDUCATORS WITH TEACHING AIDS, BOOKS, MODELS AND OTHER ITEMS THAT EXTEND THE LESSON OF THE VISIT BACK IN THE CLASSROOM. PARENTS CAN AVAIL THEMSELVES OF UNIQUE LEARNING TOOLS, COMPUTER PROGRAMS, SCIENCE KITS AND OTHER EDUCATIONAL PRODUCTS NOT READY AVAILABLE AT CONVENTIONAL RETAIL OUTLETS.MEMBERSHIP - MEMBERS HELP MAKE PROGRAMMING POSSIBLE AT THE MARYLAND SCIENCE CENTER THROUGH THEIR CONTRIBUTIONS TO THE MEMBERSHIP PROGRAM. AS A PARTNER WITH THE SCIENCE CENTER, MEMBERS ARE VESTED IN THE INSTITUTION AND ARE PART OF A COMMUNITY OF PEOPLE WHO VALUE SCIENCE EDUCATION AND THE IMPORTANT ROLE THAT SCIENCE PLAYS IN OUR EVERYDAY LIVES.Expenses $761,131 · revenue $2,340,985
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
- 52-0668166
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (509(a)(2))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 1947
- Accounting year ends
- June
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Arts, culture and humanities (A570)
- Assets (IRS master file)
- $43,891,852
- Income (IRS master file)
- $13,157,561
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | June 2025 | $10,446,810 | $8,677,833 | $43,891,852 | XML |
| 990-T | June 2025 | – | – | – | IRS |
| 990 | June 2024 | $12,943,076 | $8,283,618 | $41,031,936 | XML |
| 990-T | June 2024 | – | – | – | IRS |
| 990 | June 2023 | $6,177,547 | $7,399,053 | $36,123,339 | IRS |
| 990-T | June 2023 | – | – | – | IRS |
| 990 | June 2022 | – | – | – | IRS |
| 990-T | June 2022 | – | – | – | IRS |
| 990 | June 2021 | – | – | – | IRS |
| 990-T | June 2021 | – | – | – | IRS |
| 990 | June 2019 | – | – | – | 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 52-0668166).
Questions about MARYLAND SCIENCE CENTER
- What is the EIN of MARYLAND SCIENCE CENTER?
- The employer identification number (EIN) of MARYLAND SCIENCE CENTER is 52-0668166.
- Is MARYLAND SCIENCE CENTER tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1947.
- Are donations to MARYLAND SCIENCE CENTER tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does MARYLAND SCIENCE CENTER 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 MARYLAND SCIENCE CENTER 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 MARYLAND SCIENCE CENTER 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 MARYLAND SCIENCE CENTER?
- The 990 for the year ended June 30, 2025 names KELLY MILLER.
- Who are the officers and directors of MARYLAND SCIENCE CENTER?
- The 990 for the year ended June 30, 2025 lists 36 people; 5 received compensation from the organization, the highest $266,116 (MARK J POTTER, PRESIDENT & CEO).
- How much revenue does MARYLAND SCIENCE CENTER have?
- On its 990 for the year ended June 30, 2025 it reported revenue of $10,446,810, expenses of $8,677,833 and total assets of $43,891,852 at year end.
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All nonprofits in BALTIMORE · Maryland · Arts, culture and humanities