UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16 OF THE

SECURITIES EXCHANGE ACT OF 1934

For the month of August 2026

Commission File Number: 001-41975

ENERGYS GROUP LIMITED

(Translation of registrant’s name into English)

Franklyn House, Daux Road

Billingshurst, West Sussex

RH149SJ

United Kingdom

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F: Form 20-F ☒ Form 40-F ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ☐

Issuance of Press Release

On August 24, 2026, Energys Group Limited issued a press release announcing the acquisition by its wholly-owned subsidiary, Energys Group Limited (UK), of two of its key delivery and fulfillment partners, Cube Lighting and Design Limited and Cube Solar Installations Limited, effective August 20, 2026. A copy of the press release is attached to this report as Exhibit 99.1.

The press release furnished in this report as Exhibit 99.1 shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section.

Forward-Looking Statements

Matters discussed in this report may constitute forward-looking statements. Forward-looking statements include statements concerning plans, objectives, goals, strategies, future events or performance, and underlying assumptions and other statements, other than statements of historical facts. The words “believe,” “anticipate,” “intends,” “estimate,” “potential,” “may,” “should,” “expect,” “pending” and similar expressions identify forward-looking statements. The forward-looking statements in this report are based upon various assumptions. Although we believe that these assumptions were reasonable when made, because these assumptions are inherently subject to significant uncertainties and contingencies, which are difficult or impossible to predict and are beyond our control, we cannot assure you that we will achieve or accomplish these expectations.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

ATTACHMENTS / EXHIBITS

EX-99.1