Second Valparaiso Location located at 401 State Road 149, Valparaiso, IN 46385. Tech Credit Union is a local financial institution in Valparaiso with branches located throughout Northwest Indiana and Calumet City & Crest Hill, Illinois. The credit union offers banking and loan services for personal and business needs. A full-range of online and mobile banking services are available as well as fee-free nationwide ATM networks. Tech Credit Union offers the latest banking services, but without the cost of a big bank relationship. You’ll enjoy lower rates on loans, higher rates on deposits, and a host of free and low-cost services.