AMERICAN CENTER FOR PHYSICS INC

As filed

Subsection

03

NTEE code

U300

Classification

1000

Street

1 PHYSICS ELLIPSE

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Other organizations at this address

4 other organizations in the IRS Business Master File list the same street address. matched by us

We match the street line and ZIP code as the IRS gives them, ignoring case and outer spaces and nothing else, so "AVE" and "AVENUE" count as different streets and this list can miss some. A shared address can mean related organizations or a shared office, but it can also be a registered agent, a mail drop or a service provider holding mail for unrelated clients. It is not, by itself, evidence that two organizations are connected.

• AIP FOUNDATION

  EIN 83-4485064

• AMERICAN INSTITUTE OF PHYSICS INCORPORATED

  EIN 13-1667053

• AMERICAN PHYSICAL SOCIETY

  EIN 13-1656610

• SOCIETY OF RHEOLOGY INCORPORATED

  EIN 13-6203476

Mission and programs · 2025

• ACP IS A MEMBERSHIP CORPORATION WHICH IS EXCLUSIVELY TO OPERATE FOR THE BENEFIT OF, TO PERFORM THE FUNCTIONS OF, AND TO CARRY OUT THE PURPOSE OF THE INITIAL MEMBER ORGANIZATIONS.

  Expenses $3,285,643 · Revenue $3,671,387

As filed on the 2025 return.

Officers and directors · 2025

As listed in Part VII of the 2025 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. A Schedule J breakdown is as filed: base pay, bonus, other, deferred compensation and nontaxable benefits from this organization, with any from related organizations beside each, and the filer's own total. It is shown with the Part VII listing of the same name on the same return. The form gives no key between the two, so that pairing is ours, and is marked matched by us. Earlier years are each on their own filing page.

Filings

• 2025

  Revenue

  $3,890,830

  Expenses

  $3,285,643

  Contributions

  $0

  Grants paid

  $0

• 2024

  Revenue

  $7,096,408

  Expenses

  $3,964,849

  Contributions

  $0

  Grants paid

  $0

• 2023

  Revenue

  $22,884,739

  Expenses

  $1,811,792

  Contributions

  $0

  Grants paid

  $0

• 2022

  Revenue

  $2,789,791

  Expenses

  $2,404,745

  Contributions

  $59,165

  Grants paid

  $20,000

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Other returns filed

• 2021 · 990

  Revenue

  $2,493,197

  Expenses

  $2,036,840

  Assets (EOY)

  $26,806,500

• 2020 · 990

  Revenue

  $5,228,940

  Expenses

  $2,294,776

  Assets (EOY)

  $24,666,340

• 2019 · 990

  Revenue

  $2,684,705

  Expenses

  $2,461,173

  Assets (EOY)

  $21,597,415

• 2018 · 990

  Revenue

  $8,208,754

  Expenses

  $2,450,538

  Assets (EOY)

  $21,346,291

• 2017 · 990

  Revenue

  $2,614,287

  Expenses

  $3,097,578

  Assets (EOY)

  $15,519,103

• 2016 · 990

  Revenue

  $2,669,750

  Expenses

  $3,494,303

  Assets (EOY)

  $15,885,688

• 2015 · 990

  Revenue

  $5,969,400

  Expenses

  $4,008,658

  Assets (EOY)

  $19,886,684

• 2014 · 990

  Revenue

  $6,555,952

  Expenses

  $4,714,911

  Assets (EOY)

  $21,057,712

• 2013 · 990

  Revenue

  $6,728,084

  Expenses

  $5,033,460

  Assets (EOY)

  $21,792,737

• 2012 · 990

  Revenue

  — not reported

  Expenses

  $5,038,807

  Assets (EOY)

  $22,981,290

Nonprofiteer parses Forms 990, 990-EZ and 990-PF, in a window of recent tax years. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all. Showing the 10 most recent; the API carries the rest.

Grants made

• TOWN OF RIVERDALE PARK

  $20,000

  2022 · COMMUNITY SUPPORT

Where these grants went next →

Grants received

No itemized grant names this organization as a recipient. Only grants over $5,000 are itemized, and only by filers of the full Form 990.

Related organizations

From Schedule R Part II, where a filer lists the tax-exempt organizations it is related to by control. It does not record shared board members or money.

Other IRS files