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 August 18, 2025, relating to the financial statements of American Exceptionalism Acquisition Corp. A as of July 28, 2025, and for the period from July 11, 2025 (inception) through July 28, 2025, 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

August 18, 2025