ISB’s first Ready for Guidewire accelerator is now available in the Guidewire Marketplace and to help Canadian insurers streamline claims processing to improve customer experience MILTON, Ontario & SAN MATEO, Calif.--(BUSINESS WIRE)--$GWRE #Accelerator--Guidewire Software, Inc. (NYSE: GWRE), provider of the industry platform Property and Casualty (P&C) insurers rely upon, today announced that ISB Global Services (ISB), an industry leader in insurance document sourcing and background screening,…