SES AI Corporation 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.
- 2026-04-30: Fiscal year end 2025-12-31; Auditor Grant Thornton LLP; PCAOB firm ID 248; Location Boston, Massachusetts.
- 2026-03-04: Fiscal year end 2025-12-31; Auditor GRANT THORNTON LLP; PCAOB firm ID 248; Location Boston, Massachusetts.
- 2025-04-30: Fiscal year end 2024-12-31; Auditor Grant Thornton LLP; PCAOB firm ID 248; Location Boston, Massachusetts.
- 2025-02-28: Fiscal year end 2024-12-31; Auditor GRANT THORNTON LLP; PCAOB firm ID 248; Location Boston, Massachusetts.
| Filed | Fiscal year end | Auditor | PCAOB firm ID | Location | Internal-control attestation |
|---|---|---|---|---|---|
| 2026-04-30 | 2025-12-31 | Grant Thornton LLP | 248 | Boston, Massachusetts | No |
| 2026-03-04 | 2025-12-31 | GRANT THORNTON LLP | 248 | Boston, Massachusetts | No |
| 2025-04-30 | 2024-12-31 | Grant Thornton LLP | 248 | Boston, Massachusetts | No |
| 2025-02-28 | 2024-12-31 | GRANT THORNTON LLP | 248 | Boston, Massachusetts | No |
| 2024-02-27 | 2023-12-31 | GRANT THORNTON LLP | 248 | Boston, Massachusetts | Yes |
| 2023-03-16 | 2022-12-31 | KPMG LLP | 185 | Boston, Massachusetts | Yes |
| 2022-03-31 | 2021-12-31 | WithumSmith+Brown, PC | 100 | New York, New York |