Alliance Laundry Holdings Inc.

This proxy statement is furnished in connection with the solicitation by the board of directors (the “Board of Directors” or the “Board”) of Alliance Laundry Holdings Inc. of proxies to be voted at our Annual Meeting of Stockholders to be held on Thursday, June 11, 2026 (the “Annual Meeting”), at 4:00 p.m. Eastern time and at any continuation, postponement or adjournment of the Annual Meeting. The Annual Meeting will be a completely virtual meeting, which will be conducted via live webcast. You will be able to attend the Annual Meeting online and submit your questions during the meeting by visitingwww.virtualshareholdermeeting.com/ALH2026 and entering your 16‑digit control number included in your Notice of Internet Availability of Proxy Materials, on your proxy card or on the instructions that accompanied your proxy materials.

Holders of record of shares of our common stock, $0.01 par value per share, as of the close of business on April 16, 2026 (the “Record Date”) will be entitled to notice of and to vote at the Annual Meeting and any continuation, postponement or adjournment of the Annual Meeting. As of the Record Date, there were 198,237,241 shares of common stock outstanding and entitled to vote at the Annual Meeting. Each share of common stock is entitled to one vote on any matter presented to stockholders at the Annual Meeting. The holders of common stock will vote together as a single class on all matters to be presented to stockholders at the Annual Meeting.

This proxy statement and the Company’s Annual Report to Stockholders for the year ended December 31, 2025 (the “2025 Annual Report”) will be released on or about April 27, 2026 to our stockholders as of the Record Date.

In this proxy statement, “Alliance Laundry”, “Company”, “we”, “us” and “our” refer to Alliance Laundry Holdings Inc.

IMPORTANT NOTICE REGARDING THE AVAILABILITY OF PROXY MATERIALS FOR THE STOCKHOLDER MEETING TO BE HELD ON THURSDAY, JUNE 11, 2026

This proxy statement and the 2025 Annual Report are available athttp://www.proxyvote.com

Proposals

At the Annual Meeting, our stockholders will be asked:

•To elect Michael D. Schoeb, Phyllis A. Knight and Robert L. Verigan as directors to serve until the 2029 Annual Meeting of Stockholders and until their respective successors shall have been duly elected and qualified;

•To ratify the appointment of Ernst & Young LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2026;

•To approve, on an advisory (non‑binding) basis, the frequency of future advisory votes on the compensation of our named executive officers;

•To approve, on an advisory (non‑binding) basis, the compensation of our named executive officers; and

•To transact such other business as may properly come before the Annual Meeting or any continuation, postponement or adjournment of the Annual Meeting.

We know of no other business that will be presented at the Annual Meeting. If any other matter properly comes before the stockholders for a vote at the Annual Meeting, however, the proxy holders named on the Company’s proxy card will vote your shares in accordance with their best judgment.

Recommendations of the Board of Directors

The Board of Directors recommends that you vote your shares as indicated below. If you return a properly completed proxy card or vote your shares by telephone or Internet, your shares of common stock will be voted on your behalf as you direct. If not otherwise specified, the shares of common stock represented by the proxies will be voted and the Board of Directors recommends that you vote:

•FOR the election of Michael D. Schoeb, Phyllis A. Knight and Robert L. Verigan as directors to serve until the 2029 Annual Meeting of Stockholders and until their respective successors shall have been duly elected and qualified;

•FOR the ratification of the appointment of Ernst & Young LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2026;

•ONE YEAR as the frequency of future advisory votes on the compensation of our named executive officers; and

•FOR the approval, on an advisory (non‑binding) basis, of the compensation of our named executive officers.