Duolingo, 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.
- 2026-02-27: Fiscal year end 2025-12-31; Auditor Deloitte & Touche LLP; PCAOB firm ID 34; Location New York, New York.
- 2025-02-28: Fiscal year end 2024-12-31; Auditor Deloitte & Touche LLP; PCAOB firm ID 34; Location New York, New York.
- 2024-02-29: Fiscal year end 2023-12-31; Auditor Deloitte & Touche LLP; PCAOB firm ID 34; Location New York, New York.
- 2023-03-01: Fiscal year end 2022-12-31; Auditor Deloitte & Touche LLP; PCAOB firm ID 34; Location New York, New York.
| Filed | Fiscal year end | Auditor | PCAOB firm ID | Location | Internal-control attestation |
|---|---|---|---|---|---|
| 2026-02-27 | 2025-12-31 | Deloitte & Touche LLP | 34 | New York, New York | Yes |
| 2025-02-28 | 2024-12-31 | Deloitte & Touche LLP | 34 | New York, New York | Yes |
| 2024-02-29 | 2023-12-31 | Deloitte & Touche LLP | 34 | New York, New York | Yes |
| 2023-03-01 | 2022-12-31 | Deloitte & Touche LLP | 34 | New York, New York | No |
| 2022-03-04 | 2021-12-31 | Deloitte & Touche LLP | 34 | New York, New York | No |