PAI Partners and TPG are the latest investors linked to a sale process. : Two international private equity firms are reported to be vying to take over North East holiday park operator Parkdean Resorts. PAI Partners, the French investor with a £19bn portfolio, and TPG, a Texas-based firm with a£17.9bn portfolio, are thought to have joined forces in a bid for the Gosforth-headquartered firm, which is owned by Canada's Onex Corporation.