Effective Jan. 1, Head N.V., the owner of the Mares brand of diving equipment, acquired SSI (Scuba Schools International). SSI is a major globally operating provider of diving certificates, teaching material and education concepts for divers and diving instructors. Founded in 1970, SSI describes itself as one of the few operators of its type which is ISO-certified. According to the company’s own information, Scuba Schools International offers its services to some 2,600 diving resorts and schools in 110 countries and in 30 languages. SSI is located in Schwarzenbruck, Germany, and is one of the co-founding members of RSTC (Recreational Scuba Training Council), an international organization that represents the interests of the diving industry.