Industrial/Flex Spaces Available in Portage, IN Located in the AmeriPlex at the Port, a 385-acre master-planned business park, Suite F + G offers 39,000 SF of prime divisible space. Features include high-speed, high-capacity fiber optic telecom services, city-provided utilities, and a generous 24' ceiling height. Enjoy easy access off I-94, making it a convenient location for your business needs.