According to a Binance spokesperson quoted by Blockworks, PricewaterhouseCoopers (PwC), Deloitte (DTT), KPMG (KPMG), and Ernst & Young (EY) "Big Four" accounting firms are unwilling to conduct reserve certification audits for private encryption companies. After Mazars suspended its services to cryptocurrency clients, Binance has reached out to several major firms and is still looking for one willing to do the work. Deloitte is currently partnering with Coinbase to provide audit and accounting services, while Ernst & Young has established a partnership with crypto tax and accounting technology provider TaxBit.