NAI Martens is the largest full-service commercial real estate firm in Kansas. Founded in 1948 and headquartered in Wichita, NAI Martens provides a vast array of commercial real estate services throughout south-central Kansas and Topeka. NAI Martens is led by CEO Steve Martens, CCIM, CPM, SIOR and President Tom Johnson, CRE – two industry veterans with 80 years of combined commercial real estate experience.