Society of Industrial & Office Realtors® Says NAI’s 215 SIORs Is Most in Industry NAI Global, the world’s premier managed network of commercial real estate firms and one of the largest real estate services providers worldwide, today announced it has been recognized by the Society of Industrial and Office Realtors® (SIOR) as having more agents with the prestigious SIOR designation than any other brokerage firm in the world. Currently, 215 NAI agents hold the SIOR designation, representing almost…