Company: ATLN
Filing Date: 2025-12-10
Form Type: S-3/A
Source: 0001213900-25-120180
Chunk: 10

Company: ATLANTIC INTERNATIONAL CORP.
Filing Date: 2025-12-10
Form: S-3/A
Chunk 10
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 speak only as of the date on the cover of this prospectus.

In this prospectus, unless otherwise noted, the terms “the Company,” “Atlantic,” “we,” “us,” and “our” refer to Atlantic International Corp.

<div align='center'>Overview</div>

Atlantic International Corp. (“Atlantic”) (Nasdaq: ATLN), through its subsidiaries, is a national strategic staffing firm servicing the commercial, professional, finance, direct placement, and managed service provider verticals. Lyneer was formed under the principles of honesty and integrity, and with the view of becoming the preferred outside employer of choice. Since its formation, the Company has grown from a regional operation to a national staffing firm with offices and geographic reach across the United States. The Company primarily places individuals in accounting and finance, administrative and clerical, information technology, legal, light industrial, and medical roles. Atlantic’s approximately 300 employees generated over $400 million in revenue for the year ended December 31, 2024.

<div align='center'>Corporate Information</div>

We were incorporated in Delaware under the name SeqLL Inc. on April 1, 2014. On June 13, 2024, the Company changed its name from SeqLL Inc. to Atlantic International Corp. On June 4, 2024 the Company, SeqLL Merger LLC, a Delaware limited liability company and wholly-owned subsidiary of the Company (“Purchaser Sub”), Atlantic Acquisition Corp, a Delaware corporation “Atlantic”, Atlantic Merger LLC, a Delaware limited liability company and a majority-owned subsidiary of Atlantic (“Atlantic Merger Sub”), Lyneer Investments, LLC, a Delaware limited liability company (“Lyneer”), and IDC Technologies, a California corporation (“IDC”), entered into the Merger Agreement pursuant to which (i) Atlantic Merger Sub was merged with and into Lyneer, with Lyneer continuing as the surviving entity and (ii) Purchaser Sub was merged with and into Lyneer with Lyneer continuing as the surviving entity and as a wholly-owned subsidiary of the Company, collectively by referred to as the Merger.

Our corporate headquarters are located at 270 Sylvan Avenue, Suite 2230, Englewood Cliffs, New Jersey 07632. Our main telephone number at that address is (201) 899-4470, and our website address is www.atlantic-international.com. The information on our website is not part of this prospectus. We have included our website address as