Barcelona announced a new three-year sponsorship deal worth a total of 57 million euros ($71 million) with Turkish electronics company Beko on Thursday, according to local media.
President Josep Maria Bartomeu, who previously said the club is aiming to increase its revenue to 1 billion euros per year, said the deal will see the company's logo printed on the front of its training kit.
Barcelona and Beko signed a deal worth 10 million euros per year in 2014 to have the logo on the shirt sleeve, which will continue, with the new agreement seeing La Liga's leaders pick up 19 million euros a year.
Beko currently sponsors the sleeves of Barca's first team kit and the back of their training kit as part of a deal first signed in 2014.
The firm's name will now be front and centre of the team's new training kit, which was unveiled by the club.
"This association with a brand, which is a leader in its field, is vital for the club to continue to lead the elite of world football," Barca president Bartomeu said at an event to mark the deal at Camp Nou on Thursday.
Barcelona said in September that they are on course to achieve a record income of 897 million euros for the 2017-18 season.
Barca are the only team in La Liga to have a sponsor on their training kit, mimicking Manchester United's pioneering deal with logistics giant DHL in 2011.
The deal to sponsor Barca's training kit eclipses 14 out of the 20 Premier League club's sponsorship agreements for their first team kit, according to figures from sportingintelligence, quoted by the Daily Mail.
Barca, who are seven points clear at the top of La Liga and face Chelsea next week in a Champions League last-16 first leg tie, receive 55 million euros annually from their shirt sponsorship deal with Japanese firm Rakuten, signed in 2016.