In the first year of Claudia Sheinbaum Pardo's government, an analysis conducted by Mexicanos Contra la Corrupción y la Impunidad (MCCI) identified several major national and international firms as the top-rated contractors for the federal government. This evaluation considered factors such as corporate integrity, public documentation, and compliance quality with contracts, revealing a significant contrast with the broader supplier registry, where nearly half of the providers fail to meet minimum transparency standards.

Unlike the widespread perception of opacity and discretion in public contracting, this group of companies stands out for their commitment to document and publish ethical codes, anti-corruption policies, and reporting mechanisms. These elements serve as indicators of best practices, showcasing their alignment with contracting authorities' expectations. The findings suggest that these firms set a benchmark for transparency and accountability in government contracts, emphasizing the importance of integrity in public procurement.

However, the evaluation also underscores a stark disparity within the supplier landscape. While the top-rated firms demonstrate clear internal procedures, many others fall short of establishing similar frameworks, highlighting ongoing challenges in the Mexican government procurement system. This uneven playing field raises questions about the effectiveness of regulatory measures and the need for broader reforms to enhance transparency and fairness in public contracting processes.