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 January 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 ☐

EXPLANATORY NOTE

On January 8, 2026, Energys Group Limited issued a press releases titled “Energys Group Announces Receipt of Determination Letter from Nasdaq Capital Market.” A copy of the press release is furnished 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.

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.