APPIAN 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.
- 2026-02-19: Fiscal year end 2025-12-31; Auditor BDO USA, P.C.; PCAOB firm ID 243; Location McLean, Virginia.
- 2025-02-19: Fiscal year end 2024-12-31; Auditor BDO USA, P.C.; PCAOB firm ID 243; Location McLean, Virginia.
- 2024-02-15: Fiscal year end 2023-12-31; Auditor BDO USA, P.C.; PCAOB firm ID 243; Location McLean, Virginia.
- 2023-02-16: Fiscal year end 2022-12-31; Auditor BDO USA, LLP; PCAOB firm ID 243; Location McLean, Virginia.
| Filed | Fiscal year end | Auditor | PCAOB firm ID | Location | Internal-control attestation |
|---|---|---|---|---|---|
| 2026-02-19 | 2025-12-31 | BDO USA, P.C. | 243 | McLean, Virginia | Yes |
| 2025-02-19 | 2024-12-31 | BDO USA, P.C. | 243 | McLean, Virginia | Yes |
| 2024-02-15 | 2023-12-31 | BDO USA, P.C. | 243 | McLean, Virginia | Yes |
| 2023-02-16 | 2022-12-31 | BDO USA, LLP | 243 | McLean, Virginia | Yes |
| 2022-02-17 | 2021-12-31 | BDO USA, LLP | 243 | McLean, Virginia | Yes |
| 2021-02-18 | 2020-12-31 | BDO USA, LLP | McLean, Virginia | Yes | |
| 2020-02-20 | 2019-12-31 | BDO USA, LLP | McLean, Virginia | ||
| 2019-02-21 | 2018-12-31 | BDO USA, LLP | McLean, Virginia | ||
| 2018-02-23 | 2017-12-31 | BDO USA, LLP | McLean, Virginia |