Invest Green Acquisition Corp (ticker: IGAC) is a blank-check company that filed an amended S-1 registration statement with the U.S. Securities and Exchange Commission on November 4, 2025, as it works toward completing an initial public offering. The SPAC is focused on the sustainability and clean energy sector, a positioning consistent with its corporate branding. Sponsor details are not confirmed from the available filing information. As an active pre-IPO vehicle with its registration on file in 2025, IGAC is part of a continued flow of ESG- and green-economy-oriented blank-check companies pursuing public listings. Investors and researchers tracking this segment can access full filing timelines, deal metrics, and comparable transactions by signing up for SpacDesk.