The aim of this work was to determine the correlation between the characteristics of enterprises and entrepreneurs and competitiveness in SMEs (Small and Medium Enterprises) in México City. For this purpose the data collected in the first phase of this research were taken, which were collected through field work using direct structured questionnaire to a sample of 400 companies and correlation statistical tests were performed using the method Chi square. The main findings indicate that the level of education has a significant relationship with the global competitiveness, being coincident with the findings of the literature discussed previously. It's also found that the size of the business has a significant relationship with global competitiveness, and with all factors being coincident with the findings of the literature discussed previously. Finally, the legal personality (natural person or corporation) and the sector also show a significant relationship with global competitiveness and its factors, where the features that have a significant relationship with competitiveness are gender and age and the type of company (family or non-family) and its antiquity.total number of companies in the country, generating 78.5 per cent of employment and contributes 52 per cent of the domestic gross product [1]. Its importance is also to play a more economic social role to become a balance, where disadvantaged workers can find a source of employment and also among other aspects it can provide goods and services to poor people. If we refer to Latin America, the importance of SMEs is that in most countries it generates over 60 per cent of jobs and 50 per cent of value added, hence the importance of analyzing [2].On the other hand, the business competitiveness conceptualized as the ability to manage the company productivity, profitability, participation in internal and external market, competitive position and regional infrastructure [3], is vital for these organizations, since if they do not strive to achieve adequate competitiveness levels, they will easily disappear.Accordingly, the objective of this research consists of determining if there is a relationship between competitiveness and the characteristics of the entrepreneur, measured by age, sex and level of education, and the characteristics of the company, measured by size, legal personality (physical or mercantile society), type of company (family and non-family), sector (industry, trade and service) and their age/seniority in the market.The importance of carrying out this study derives from the reasons mention above. The study presents the development of the second part of the research project called "Towards Determining the Competitiveness of Latin American SMEs" [4]. The literature reviewed and presented in the theoretical framework underlines the importance which the characteristics of enterprises and entrepreneurs for the competitiveness of SMEs have, in favor of competitiveness of SMEs, so, here a question rises: What is the relation between features of the enterpri...