Infrastructure & Energy Alternatives, Inc., trading under ticker MIII, is the post-combination entity formed through the de-SPAC merger of M III Acquisition Corp and IEA Energy Services, a specialty contractor focused on renewable energy and infrastructure construction. M III Acquisition Corp, sponsored by M III Partners, completed its initial public offering in 2017 and closed its business combination with IEA in 2018, operating in the infrastructure and clean energy sector. The S-1/A amendment filed January 29, 2020, under accession number 0001047469-20-000583, represents a post-merger registration update with the SEC. Sign up for SpacDesk to access the full filing history, deal timeline, and sponsor data for MIII and hundreds of other SPAC transactions.