ESGEN Acquisition (ESAC) - Prospectus

As filed with the Securities and Exchange Commission on October 28, 2025 Registration No. 333-[ ] UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ZEO ENERGY CORP. (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or organization) (Primary Standard Industrial Classification Code Number) Delaware 4931 001-40927 (I.R.S. Employer Identification Number) 7625 Little Rd, Suite ...