PSG, a growth equity firm that partners with software and technology-enabled service companies, completed the acquisition of a stake in Diapason, a French provider of treasury and risk management software for large and mid-sized companies, from Apax Partners, a British private equity firm. Financial terms were not disclosed. "After a very successful first phase with Seven2, I'm delighted to be starting this new chapter with PSG. PSG has an established track record in growing software companies, especially in the cash management space. This new phase should enable us to become a full-blown European player while broadening our market position. This change of scale will benefit Diapason's customer and shareholder communities," Pascal Kravitzch, Diapason Chairman and Co-Founder.