As of July 4, 2020, there are several charter companies taking out dipnetters.
Mark Hem and Sam McCallister operate out of O'Brien Creek dropping people off in the "canyon". They can be found on Facebook or their website at https://www.hemandcopperrivercharters.com. They take online reservations and, possibly, some walk-in clients if time permits. Check-in is at O'Brien Creek. Mark and Sam have four tables with water for cleaning your catch.
Mark Spencer and AK eXpeditions take people out to dipnet from boats. They're on Facebook or their website at https://ak-x.com. Check-in is right in beautiful downtown Chitina then a short drive down to the bridge to go fishing.