One of the most topical issues in the field of teaching and learning English for Specific Purposes is the question whether tertiary students are able to succeed in mastering English as a foreign language effectively and subsequently to be competitive in the multicultural corporate sphere. The paper presents a study aimed at large employers and their requirements on university graduates’ language skills. The research was conducted in November 2018 within 12th JobChallenge Fair in Brno, Czech Republic, where large companies and businesses targeted students as their prospective employees. Following theoretical groundwork, a questionnaire was designed and distributed to representatives of 36 companies operating in engineering, information technology and economy. The aim of the survey was to identify the required language proficiency according to the Common European Framework of References for Languages as a model for describing knowledge levels. Findings show that most of the employers prefer graduates in junior positions with B2 level of English, specifically of both English for General Purposes and English for Specific Purposes. In addition, the analysis reveals a great demand for productive skills such as active participating in meetings, telephoning, business correspondence or presentation skills whereas receptive skills are considered to be less important.