Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the use in the Prospectus constituting a part of this Registration Statement on Form S-1 of our report dated November 8, 2024, relating to the financial statements of Hennessy Capital Investment Corp. VII as of October 11, 2024 and for the period from September 27, 2024 (inception) through October 11, 2024, which is contained in that Prospectus. We also consent to the reference to us under the caption “Experts” in the Prospectus.

/s/ WithumSmith+Brown, PC

New York, New York

November 8, 2024