E Blum & Co is still considered to be one of Switzerland's leading prosecution agencies, topping both the patent and trade mark tables. The agency added two associates to its team last year in Simon Affentranger and Chris Engelbrecht from Fifa and university respectively. The patent agents have represented some of the leading pharmaceutical companies including Pfizer and Merck & Co. One law firm that works with E Blum says: "The agency is excellent. It does a very good job."