Question 1

Is Robert M and Mary Haythornthwaite Foundation a tax-exempt 501(c)(3)?

Accepted Answer

Yes — Robert M and Mary Haythornthwaite Foundation is recognised by the IRS as a 501(c)(3) organisation (EIN 23-2354559). The IRS recognised Robert M and Mary Haythornthwaite Foundation as tax-exempt in June 1986.

Question 2

What is Robert M and Mary Haythornthwaite Foundation's EIN?

Accepted Answer

Robert M and Mary Haythornthwaite Foundation

Q: What is Robert M and Mary Haythornthwaite Foundation's EIN?

Robert M and Mary Haythornthwaite Foundation's Employer Identification Number (EIN) is 23-2354559. The EIN was assigned by the IRS in June 1986. Donors and grantmakers use the EIN to verify tax-exempt status with the IRS.

Q: When was Robert M and Mary Haythornthwaite Foundation founded or recognised by the IRS?

Robert M and Mary Haythornthwaite Foundation was recognised by the IRS as a tax-exempt organisation in June 1986. The IRS ruling date is the earliest authoritative date available for most US nonprofits.

DBA: N/A

Other name: Robert & Mary Haythornthwaite Foundation

EIN: 23-2354559

IRS ActivePrivate Operating Foundation501(c)(3)Annapolis, MDRuling: June 1986

Question 3

What does Robert M and Mary Haythornthwaite Foundation do?

Accepted Answer

The foundation currently supports scientific research, primarily research in the field of Theoretical and Applied Mechanics by awarding prizes and grants for advanced mechanics graduate studies.

Question 4

Where is Robert M and Mary Haythornthwaite Foundation located?

Accepted Answer

Robert M and Mary Haythornthwaite Foundation is located at 7 Gladden Rd, Annapolis, MD, 21402.

Question 5

When was Robert M and Mary Haythornthwaite Foundation founded or recognised by the IRS?

Accepted Answer

Robert M and Mary Haythornthwaite Foundation

DBA: N/A

Other name: Robert & Mary Haythornthwaite Foundation

EIN: 23-2354559

IRS ActivePrivate Operating Foundation501(c)(3)Annapolis, MDRuling: June 1986

Question 6

What is Robert M and Mary Haythornthwaite Foundation's annual revenue?

Accepted Answer

On its most recent Form 990 (fiscal year 2024), Robert M and Mary Haythornthwaite Foundation reported $75K in total revenue and $104K in total expenses.

Question 7

Has Robert M and Mary Haythornthwaite Foundation been auto-revoked by the IRS?

Accepted Answer

No — Robert M and Mary Haythornthwaite Foundation (EIN 23-2354559) does not appear on the IRS Auto-Revocation List. Givalgo Discover cross-references the IRS Auto-Revocation List on every profile load; if status changes, this page reflects it.

Question 8

Is Robert M and Mary Haythornthwaite Foundation listed in IRS Publication 78?

Accepted Answer

Yes — Robert M and Mary Haythornthwaite Foundation is listed in IRS Publication 78 as an organisation eligible to receive tax-deductible charitable contributions. Pub 78 status is the canonical IRS signal that donations to an org are deductible.

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Robert M and Mary Haythornthwaite Foundation

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