REEFS UNKNOWN INC

As filed

Subsection

03

NTEE code

U21

Classification

2000

Street

8168 CROWN BAY MARINA 505-448

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).

Mission and programs · 2024

• VIRTUAL REALITY (VR) EXPLORATION OF DEEP MESOPHOTIC CORAL REEFS:ALTHOUGH THE PUBLIC IS FAMILIAR WITH THE EXISTENCE OF THESE REEFS AS RICH FISHING GROUNDS, FEW HAVE ANY IDEA WHAT THEY ACTUALLY LOOK LIKE. USING SCUBA EQUIPMENT AND A SPECIAL VIRTUAL REALITY CAMERA, REEFS UNKNOWN WILL CREATE VR VIDEOS FOR EDUCATIONAL USE TO SHOW THIS REMARKABLE AND UNFAMILIAR ECOSYSTEM TO STUDENTS OF VARIOUS AGES. THE DIVES WILL BE CONDUCTED PRIMARILY BY FOUNDERS VIKTOR BRANDTNERIS AND SARAH HEIDMANN. WE COLLABORATED WITH PARTNERS IN THE BRITISH VIRGIN ISLANDS TO CREATE 3D MODELS OF CORAL REEFS AND HISTORIC SHIPWRECKS IN BVI WATERS. THOSE MODELS ARE BEING USED BOTH FOR SCIENTIFIC RESEARCH AS WELL AS IN VIRTUAL REALITY AS OUTREACH TO THE PUBLIC AND STAKEHOLDERS.

  Expenses $6,744

• Withheld by Nonprofiteer: this text may name a private individual.

• Withheld by Nonprofiteer: this text may name a private individual.

As filed on the 2024 return. The filer continues this part on Schedule O, which is not shown here. A text marked withheld matched a screen for wording that may name a private individual, such as an honorific or "in memory of". Most of what it withholds names no one; it is withheld so that what does is never shown.

Officers and directors · 2024

As listed in Part VII of the 2024 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. Earlier years are each on their own filing page.

Filings

• 2024

  Revenue

  $507,852

  Expenses

  $20,944

  Contributions

  $457,540

  Grants paid

  $0

• 2023

  Revenue

  $498,370

  Expenses

  $21,058

  Contributions

  $467,906

  Grants paid

  $0

• 2022

  Revenue

  $519,674

  Expenses

  $10,243

  Contributions

  $515,372

  Grants paid

  $1,000

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.

Form 990-N e-Postcard, tax year 2021

Tax period

1 January 2021 to 31 December 2021

Principal officer

Show names as filed Viktor W BrandtnerisVIKTOR W BRANDTNERIS

Mailing address

8168 CROWN BAY MARINA NO 505-448ST THOMAS VI 00802

As filed, from the IRS e-Postcard file of 2 November 2026. The IRS publishes only each organization's most recent postcard, so earlier years are not shown. A 990-N carries no financial detail. The postcard also gives the principal officer's address, which is not shown here.

Grants made

No itemized grants to organizations. Schedule I is filed only by organizations that granted more than $5,000 to a recipient, so most filers have none.

Grants received

• FIDELITY INVESTMENTS CHARITABLE GIFT FUND

  $405,000

  2023 · For grant recipient's exempt purposes

• FIDELITY INVESTMENTS CHARITABLE GIFT FUND

  $400,000

  2024 · For grant recipient's exempt purposes

• FIDELITY INVESTMENTS CHARITABLE GIFT FUND

  $11,500

  2022 · For grant recipient's exempt purposes

Other IRS files