Margriet Spijker is CEO of the Dutch staffing company Timing, a part of ADG Group. Timing ranks third on SIA’s 2019 List of Largest Staffing Firms in the Netherlands. Spijker has more than 25 years of experience in the HR and employment services industry. She joined the company as a consultant in 1988 and has fulfilled various management positions, including deputy manager and general manager. ADG Group acquired staffing firm In Person last year, which also came under her supervision.