Suggest an update Name* Categories* State* Locality* ZIP* Street address* Phone* Website* Company description* Lawyer John G. Martens, Practice Areas Criminal Defense Attorneys. is located in the city of Ames, the state of Iowa. Attorney legal address Martens Law OfficePo Box 395315 Sixth Street, Suite 205Ames, IA, 50010-0395. For more information, please call (515) 233-2135 Your comments* (not for publishing) * — Required information John G. Martens ← View details Martens Law OfficePo Box 395315 Sixth Street, Suite 205Ames, IA, 50010-0395, Ames, Iowa (515) 233-2135