Specialized, refined, and innovative "little giant" enterprises refer to enterprises with outstanding innovation capabilities, mastery of core technologies, high market share in segmented markets, and good quality and efficiency in the core areas and key links of the industrial chain. They are an important force in promoting industry innovation, employment, and improving people's livelihoods, and are outstanding among small and medium-sized enterprises. According to the "Notice on Enterprise Review and Application" issued by the Beijing Municipal Bureau of Economy and Information Technology, the recognition of specialized, refined, unique, new, chain, and product "Little Giant" enterprises must meet six indicators simultaneously.

It is reported that "specialization" and "refinement" refer to "specialization" and "refinement". The characteristics of the "Little Giant" company are reflected in the category regulations of its main products (industrial "four basics") and the concentration of product revenue (main product revenue accounts for more than 70%), that is, it has strict requirements for the characteristics of product types and product revenue. Moreover, the "Little Giant" company should focus on segmented markets, deeply cultivate a certain field, and form influence through long-term accumulation (engaged in specific segmented markets for 3 years or more) (leading products with a market share ranking among the top 3 in the province).