PCAOB firm ID 270 · Also written as: Tanner LLP; TANNER LLP · Red-flag filings since 2025-04-01 where this firm is identified
| Filed | Company | Event | Severity |
|---|---|---|---|
| 2026-03-31 | Co-Diagnostics, Inc. (CODX) | Going-concern doubt | 5 |
| 2026-03-31 | CLEARONE INC (CLRO) | Going-concern doubt | 5 |
| 2026-03-20 | Sintx Technologies, Inc. (SINT) | Going-concern doubt | 5 |
| 2025-10-14 | DYNATRONICS CORP (DYNT) | Going-concern doubt | 5 |
| Filed | Company | Event | Severity |
|---|---|---|---|
| 2026-09-16 | ALPHA PRO TECH LTD (APT) | Auditor change - dismissed | 3 |
| Filed | Company | Event | Severity |
|---|---|---|---|
| 2025-11-04 | Zeo Energy Corp. (ZEO) | Auditor change - dismissed | 3 |
| 2025-09-15 | Angel Studios, Inc. (ANGX) | Auditor change - changed | 4 |
| 2025-08-15 | CareCloud, Inc. (CCLD) | Auditor change - resigned | 5 |
Attributions come from the filings themselves (cover-page XBRL auditor tag, the audit report signature, the former auditor's EX-16 letter or the Item 4.01 text) and are shown only when we are confident; coverage is partial. A going-concern paragraph means the auditor flagged the client's financial position; it is not a criticism of the audit firm. Not investment advice.
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