<p>English speaking proficiency is very important to be able to participate in the wider world of work. The speaking proficiency is measured in terms of the ability to carry out a conversation in the language. To improve English speaking proficiency, it should not be only in the classroom but also it is a crucial part of language learning process out of it as students need more exposures, engagement, and support from which they can learn. The students must accustom themselves to use English. They need support from the environment to improve and develop their English especially speaking proficiency. This research is carried out through a case study. This research is conducted on the students of second grade of LP3I Business and Technology College Tasikmalaya in the academic year of 2014-2015. The respondents of this research are ten students and four English teachers that are chosen by using the purposive sampling technique. The research data are obtained from observation, interview, and document analysis. They are analysed by using three steps namely the data reduction, the data presentation/display and the conclusion drawing/verification. LP3I Tasikmalaya has its own system which consists of some interrelated programs to develop English proficiency in general and speaking in particular. There are English programs that contribute to the development of students’ English speaking proficiency. English activities in the classroom foster the students to use English in the good way communication. English activities outside the classroom create the English atmosphere and accustom the students to speak English by practicing more in the English environment. (2) There are some problems in developing students’ English speaking proficiency at LP3I Tasikmalaya; The students’ difficulties to speak come from the psychological factors (confidence, anxiety, motivation, awareness); The students’ difficulties to speak come from the linguistic factors (pronunciation, vocabulary, grammar, fluency, comprehension). (3) There are some positive effects of developing English speaking program at LP3I Tasikmalaya to the students’ English speaking proficiency such as students’ confidence, students’ motivation, students’ awareness, students’ vocabulary, students’ initiative, students’ pronunciation, and students’ comprehension in speaking English are improving.</p>