Bryon has said that he no longer wishes to be involved in rugby union in the UK following the Exiles' recent points deduction for fielding an ineligible player in the Aviva Premiership.
He told The Rugby Paper: "I'm pulling out, that's absolutely definite, and I've had enough of the RFU and PRL. I've had 20 years with London Welsh, one of the great rugby brands, but everything's been done to get us back out of the division.
"How could we have prospered when our funding is totally inadequate? If we'd had the £3.5m like everyone else we'd be flying, but we had to pick up players no one else wanted. I think they're breaking competition law in the way clubs are funded.
"Then we get fined £15,000. It wasn't bad administration, Mike Scott committed a criminal act, but we've had little support and to have [PRL chief executive] Mark McCafferty on that tribunal after PRL did everything to stop us going up beggared belief.
"The bottom line is the RFU and PRL don't want us there and if that's the situation, London Welsh will have to find a level they can play at. I won't be involved in rugby after the end of this season anywhere in the UK."
London Welsh, who are currently bottom in the Aviva Premiership table, face Northampton Saints this afternoon.