Question: Pieter 'Piet' Klijnveld, was a Dutch accountant who started a practice that after several mergers would grow into which professional service company and one of the Big Four auditors, along with Deloitte, Ernst & Young (EY), and PricewaterhouseCoopers (PwC)?
Sentence (from "KPMG"): KPMG is a professional service company and one of the Big Four auditors, along with Deloitte, Ernst & Young (EY), and PricewaterhouseCoopers (PwC).
Relevant evidence: Yes