Monomoy Capital Partners, a middle-market private investment firm, completed the acquisition of Artesian Spas and Marquis Hot Tubs, two providers of portable hot tubs, swim spas and related accessories. Financial terms were not disclosed. "Artesian has a stellar brand reputation. We are pleased to be partnering with a company that shares our goal of producing high-quality products with industry-best customer service. Our combined partnership with Monomoy will allow us to continue to scale our two businesses," John Schrenk, Marquis CEO.