AECOM 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.
- 2025-11-19: Fiscal year end 2025-09-30; Auditor Ernst & Young LLP; PCAOB firm ID 42; Location Dallas, Texas.
- 2024-11-19: Fiscal year end 2024-09-30; Auditor Ernst & Young LLP; PCAOB firm ID 42; Location Los Angeles, California.
- 2023-11-15: Fiscal year end 2023-09-30; Auditor Ernst & Young LLP; PCAOB firm ID 42; Location Los Angeles, California.
- 2022-11-17: Fiscal year end 2022-09-30; Auditor Ernst & Young LLP; PCAOB firm ID 42; Location Los Angeles, California.
| Filed | Fiscal year end | Auditor | PCAOB firm ID | Location | Internal-control attestation |
|---|
| 2025-11-19 | 2025-09-30 | Ernst & Young LLP | 42 | Dallas, Texas | Yes |
|---|
| 2024-11-19 | 2024-09-30 | Ernst & Young LLP | 42 | Los Angeles, California | Yes |
|---|
| 2023-11-15 | 2023-09-30 | Ernst & Young LLP | 42 | Los Angeles, California | Yes |
|---|
| 2022-11-17 | 2022-09-30 | Ernst & Young LLP | 42 | Los Angeles, California | Yes |
|---|
| 2021-11-17 | 2021-09-30 | Ernst & Young LLP | | Los Angeles, CA | No |
|---|
| 2020-11-19 | 2020-09-30 | Ernst & Young LLP | | Los Angeles, CA | |
|---|
| 2019-11-13 | 2019-09-30 | ERNST & YOUNG LLP | | Los Angeles, CA | |
|---|
| 2018-11-13 | 2018-09-28 | ERNST & YOUNG LLP | | | |
|---|
| 2017-11-14 | 2017-09-29 | ERNST & YOUNG LLP | | Angeles, California | |
|---|
| 2016-11-16 | 2016-09-30 | ERNST & YOUNG LLP | | Angeles, California | |
|---|
| 2016-08-10 | 2015-10-02 | ERNST & YOUNG LLP | | Angeles, California | |
|---|
| 2015-11-25 | 2015-10-02 | ERNST & YOUNG LLP | | Angeles, California | |
|---|
| 2014-11-17 | 2014-09-30 | ERNST & YOUNG LLP | | Angeles, California | |
|---|
| 2013-11-13 | 2013-09-30 | ERNST & YOUNG LLP | | Angeles, California | |
|---|
| 2012-11-19 | 2012-09-30 | ERNST & YOUNG LLP | | Angeles, California | |
|---|
| 2011-11-21 | 2011-09-30 | ERNST & YOUNG LLP | | Los Angeles, California | |
|---|
| 2010-11-22 | 2010-09-30 | ERNST & YOUNG LLP | | Los Angeles, California | |
|---|
| 2009-11-27 | 2009-09-30 | ERNST & YOUNG LLP | | Los Angeles, California | |
|---|
| 2009-01-23 | 2008-09-30 | ERNST & YOUNG LLP | | Los Angeles, California | |
|---|