The law firm Wilsenach Van Wyk was established as a partnership in 1982 by Harry Wilsenach, At Van Wyk and Paul Goosen.
In 1989, the firm was incorporated into a company under the name Wilsenach Van Wyk Goosen and Bekker Inc. Currently operating as Wilsenach Van Wyk, the firm comprises three offices – two located in Pretoria and one in Johannesburg.
With an employee base of approximately 100 people, the firm has 20 professional staff including attorneys and articled clerks, as well as 80 people who fulfill various support and administration functions. Both Wilsenach and Van Wyk, who are now retired, continue to serve as advisors to the firm.