The paper aims at analyzing the performance of the Green Social Committee (LHGSC) which is the first intermediary organization to promote the green neighborhood programs and the stakeholders’ participation using the social network analysis. LHGSC, which was established to take corporate social responsibility, has been doing green neighborhood programs with local non-governmental organizations. From 2006 to 2008, LHGSC had done ninety-eight programs. Among them, eight high-performing programs were chosen and analyzed using social network analysis. Those programs are as follows: green alley construction program in Hoam Mt.(Hoam), low carbon village project in Seongmi Mt.(Seongmi), Nature experience program in Daeji Mt. (Daeji), Taepyeongdong fantasy project in Seongnam (Taepyeong), Nambu market remodeling in Jeonju (Nambu), Chorokilsaek in Jeju (Jeju), Making a toad park in Cheongju (Toad), and Green street project in Gwangju (Gwangju). First, the eight programs were evaluated for confidence, information exchange, current participation, expected participation. Second, both the ‘Toad’ and the ‘Gwangju’ which have various participants and complicated interactions were additionally evaluated for network centrism. The result shows that LHGSC is asked to play different roles according to the program types. It played the role as a fund-provider, evaluator, and holding events in the case of local non-government initiated programs such as in ‘Hoam’, ‘Seongmi’, ‘Daeji’, and ‘Toad’. Elsewhere , it provided with information, educate participants, and increase the neighborhood value in the case of ‘Taepyeong’, ‘Nambu’, ‘Jeju’, and ‘Gwangju’. Local development project should be based on the involvement of various stakeholders where intermediary organizations can play the substantial role. Despite the necessity, intermediary organizations such as LHGSC have several limitations.Therefore, LHGSC should be reshuffled into an independent entity to create a network for stakeholders, coordinate participants, and provide information. Then, it can play the role for the green neighborhood program as an intermediary organization.