"He does great things for the brand but he does get people's backs up. That's sometimes hard for us as business partners. He doesn't want to damage the brand."
Powell's franchise expertise saw massive expansion at Hell, helping to take the four stores to 66 in three years as Hell became one of New Zealand's most recognisable brands.
The trio made $15m from selling the New Zealand master franchise rights in 2006, but bought it back for just $3.5m three years later.
It emerged last week that Hell, under Powell's directions, had reneged on a pledge of $10,000 to charity KidsCan. Hell took to Twitter this week to defend themselves, initially claiming they had donated KidsCan $13,000 on the night.
That "Tweet" was later deleted and Davies said they had been seeking answers from Powell about what had happened to the $13,000.
Hell hired advertising agency Barnes, Catmur and Friends to approach KidsCan after a rival pizza company agreed to give the charity $10,000.
KidsCan chief executive Julie Helson said that the charity's response would be decided at a board meeting next week.
Davies said: "The article last week hurt a lot of mum and dad franchisees.
"They haven't deserved that. None of us want anything to happen to the franchises."
Half a dozen offices and homes in Auckland and Wellington - including Powell's Mission Bay home - were raided by the SFO earlier this month as part of their investigation into Hell. Davies said that he "wasn't losing any sleep" over the investigation.
