Who audits BLK? — Deloitte & Touche LLP
BlackRock, Inc. is audited by Deloitte & Touche LLP. Most recent audit opinion is clean (unqualified), dated 2023-12-31.
Opinion — Cited Language
“In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2025, based on criteria established in Internal Control — Integrated Framework (2013) issued by COSO.We have also audited, in accordance with the standards of t…”
Source Filing
What BLK's Auditor Relationship Tells You
The independent auditor signs off on a public company's financial statements every year — issuing an opinion on whether those statements present fairly the company's financial position. Auditor identity, tenure, and opinion type are structural risk signals that institutional investors evaluate before relying on any reported numbers. For BlackRock, Inc., the current auditor is Deloitte & Touche LLP.
Auditor tenure is one of the most-watched signals. Very short tenure (under 3 years) can signal a recent change — sometimes routine, sometimes prompted by audit disagreements or fee disputes. Very long tenure (over 20 years) can raise independence concerns under SEC rotation guidance, though there is no mandatory rotation rule in the United States.
Opinion type is the binary signal. A clean unqualified opinion is what investors expect; any deviation — explanatory paragraph, going-concern doubt, qualified opinion — is a material disclosure that should be read carefully. BlackRock, Inc.'s most recent audit opinion is classified as Clean (Unqualified). Standard unqualified opinion — auditor concurs with management presentation.
For broader context on BLK's risk profile, see the BLK Overview, the Going Concern page, or the Dilution page.