Business success is closely related to the marketing process. A good defined marketing strategy conducted to increase a sales business and marketing. The elements that must be developed are networking capability, entrepreneurial marketing, competitive advantage, and marketing performance. The sustainability of Indonesian businesses, especially small and medium enterprises (SMEs), is a challenge for entrepreneurs. SMEs are an important factor that affects the increase of national economic growth. This research investigated variables such as networking capability, entrepreneurial marketing, competitive advantage, marketing performance of embroidery SMEs in Tasikmalaya City West Java Indonesia. The technique sampling used in this research was purposive sampling. Samples gained were 120 SMEs. In analyzing the data, researchers employed Structural Equation Model (SEM) method from software AMOS. Entrepreneurial marketing activities are closely related to creating competitive advantage through innovation in the creation of better products, processes, and strategies to satisfy customer needs and desires. Hypothetical testing results showed that network capability and entrepreneurial marketing are important factors that significantly influence competitive advantage of SMEs. Networking capability, entrepreneurial marketing, and competitive advantage are important factors that significantly influence marketing performance of SMEs. Therefore, networking capability, entrepreneurial marketing, competitive advantage, and marketing performance must be developed for sustainable the successfulness of SMEs.