If you check out the registry (another section of www.housechurch.org, you will find 21 gatherings listed in Indiana as follows:

Angola Joe Stull
Boonville Greg Sureck
Columbia City Joe Scheiber
Crawfordsville David Roe
DeMotte Serenity Christian Fellowship
Goshen John Farrar
Griffith Sovereign Grace Fellowship
Indianapolis Janet
Indianapolis Ken
Merrillville Sovereign Grace Fellowship
Middlebury Rick Adams
Muncie Old Sow N Sew's Work place Outreach
Muncie Randall & Joyce Jacobsen Household
Muncie Y_E_S_ Ministries
Richmond Open Bible Ministries.
Shelbyville Matthew Evans
South Bend Georgia
Trafalgar David Hope
Vevay Dan Christopher
West Lafayette Jo Askren
West Lafayette Battleground Josephine

Not sure how close any of these are to Fort Wayne, but check out the details in the registry. Hope this helps to make some connections for you!