SNP Schneider-Neureither & Partner SE (XTRA:SHF) and its controlling shareholder are exploring a potential sale after the German software provider received initial takeover interest, according to people familiar with the matter. The company and Wolfgang Marguerre, the billionaire who owns almost 64%, are working with boutique advisory firm Parkview Partners to gauge interest from potential buyers, according to the people. SNP could attract private equity firms such as Apax Partners and Bridgepoint Group Plc, as well as IT services firms like Accenture Plc and International Business Machines Corp., the people said.