Montaneses

On 26 June 2021, Fuertes de Fortín, a club from Fortín de las Flores, Veracruz, won promotion from the Liga TDP to the Liga Premier de México after defeating Toluca in the regional final. Following this result, the team secured a place in the Liga Premier (Serie A). A week later, the club won the national championship in that category.

After being promoted, the Fuertes de Fortín board of directors began to receive offers from other cities such as Córdoba, Orizaba, Xalapa and Tuxtepec to relocate the club in those locations, due to the fact that the sports facilities of Fortín de las Flores did not comply with the requirements to participate in the Segunda División. However, the team intended to continue playing in their hometown even though they could not promote. At the end of July, Orizaba's offer began to gain acceptance among the club's owners.

On July 22, 2021, Fuertes de Fortín was sold to businessmen from Orizaba, who relocated it to their city and was renamed Montañeses F.C., after the originally proposed name, Academia Orizaba F.C., could not be used due to the disaffiliation of Albinegros de Orizaba, former club that played in Orizaba, which had the right to use the name of the city in Mexican football. On July 30, the club's participation in Serie A was confirmed, being placed in Group 2.