The article analyzes the development of small business using the example of that one in Naberezhnye Chelny. A competitive market is influenced by many factors. These are laws, state policy in the field of small business in the construction sector, as exemplified in this article, a competitive environment. The article presents the impact of Federal Law No. 135 “On Protection of Competition” on the competitive environment, including in construction. In our country,a lot is said about supporting small businesses, there are federal and regional programs. There is also an understanding of what kind of small business it is and what it is for. There are many definitions of small business. Each country has certain criteria for evaluating small businesses. The main thing is that the goal of small business is to increase jobs, and not just to employ people, but to increase the country’s human resources. It should be borne in mind that small businesses respond more quickly to local business conditions. The novelty of the research is that an important point of small business is the creation of a market close to perfect competition, and this is the basis of the concept of logistics barter, which will dominate the economy. The new concept of logistic barter involves the denial of monetary relations between manufacturers in the B2B segment. The B2C segment is not interesting for logistic barter. The money will remain in “households” who care about the market with ideally perfect competition. A market of perfect competition and antitrust laws will work in tandem. Banks will be relevant only for end consumers, namely “households”.