Leganés has agreed a kit sponsorship deal with football news and results website BeSoccer, reports Sport Business.
Under the agreement, BeSoccer's logo will appear on the front of the first team's shorts.
The firm will also serve as Leganés' technological partner through 2019, and will design a new team mobile application.
The launch of the new application is scheduled for early March and will provide fans with results, news, calendar, historical data of the club, games, draws and directions.