LOUISVILLE — Alpen High Performance Products Inc., a high-efficiency window manufacturer in Louisville, recently closed a $6 million Series B fundraising round led by Inherent Capital and Arborview Capital. Alpen’s Series B, which had an initial target of $10 million, came on the heels of a 2024 fundraising effort that brought in $18 million through a combination of investments and a grant from the U.S. Department of Energy. “This capital injection is a massive vote of confidence in our team and the work we do every day,” Alpen CEO Andrew Zech said in the release. “Over the last three years, we have fundamentally transformed how Alpen operates. We have transitioned from a bespoke manufacturer into a national brand with a scaled and standardized product suite, and this funding ensures we have the necessary operating capital to meet growing demand.”