UNITED-GUARDIAN, INC. Auditor
The independent registered public accounting firm that signed the audit report in each annual report on Form 10-K, newest first. PCAOB firm ID and the internal-control attestation are as tagged on the cover from fiscal 2021; earlier rows come from the signed report text.
- 2026-03-27: Fiscal year end 2025-12-31; Auditor GRASSI & CO., CPAs, P.C.; PCAOB firm ID 606; Location Jericho, New York.
- 2025-03-21: Fiscal year end 2024-12-31; Auditor GRASSI & CO., CPAs, P.C.; PCAOB firm ID 606; Location Jericho, New York.
- 2024-03-22: Fiscal year end 2023-12-31; Auditor GRASSI & CO., CPAs, P.C.; PCAOB firm ID 606; Location Jericho, New York.
- 2023-03-23: Fiscal year end 2022-12-31; Auditor Baker Tilly US, LLP; PCAOB firm ID 23; Location Uniondale, NY.
| Filed | Fiscal year end | Auditor | PCAOB firm ID | Location | Internal-control attestation |
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| 2026-03-27 | 2025-12-31 | GRASSI & CO., CPAs, P.C. | 606 | Jericho, New York | No |
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| 2025-03-21 | 2024-12-31 | GRASSI & CO., CPAs, P.C. | 606 | Jericho, New York | No |
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| 2024-03-22 | 2023-12-31 | GRASSI & CO., CPAs, P.C. | 606 | Jericho, New York | No |
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| 2023-03-23 | 2022-12-31 | Baker Tilly US, LLP | 23 | Uniondale, NY | No |
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| 2022-03-23 | 2021-12-31 | Baker Tilly US, LLP | 23 | Uniondale, NY | No |
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| 2021-04-23 | 2020-12-31 | Baker Tilly US, LLP | | Melville, NY | |
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| 2017-03-23 | 2016-12-31 | Baker Tilly Virchow Krause, LLP | | Melville, New York | |
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| 2016-03-24 | 2015-12-31 | Baker Tilly Virchow Krause, LLP | | Melville, New York | |
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| 2015-03-26 | 2014-12-31 | Baker Tilly Virchow Krause, LLP | | Melville, New York | |
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| 2014-03-24 | 2013-12-31 | Baker Tilly Virchow Krause, LLP | | Melville, New York | |
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| 2013-03-21 | 2012-12-31 | Holtz Rubenstein Reminick LLP | | Melville, New York | |
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| 2012-03-26 | 2011-12-31 | Holtz Rubenstein Reminick LLP | | Melville, New York | |
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| 2011-03-25 | 2010-12-31 | Holtz Rubenstein Reminick LLP | | Melville, New York | |
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| 2010-03-25 | 2009-12-31 | Holtz Rubenstein Reminick LLP | | Melville, New York | |
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| 2009-03-24 | 2008-12-31 | EISNER LLP | | | |
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