Wessel van Alphen Sr. is the founder and CEO of IT-Staffing, one of the largest IT specialist staffing firms in the European market and the fifth largest staffing firm in the Netherlands. Van Alphen started his first company in 1978 providing the services of self-employed IT specialists to clients. In December 2013, van Alphen Sr. passed the day-to-day running of the business to his son, Wessel van Alphen Jr., who is director of De Staffing Groep, the parent company of IT-Staffing.