The brand new examine discovered that Barca generated report gross sales of $ 935.9 million (€ 840.eight million) final season, making it the one third membership to take care of the highest place.
Because of this, Actual Madrid got here in second with $ 842.9 million whereas Manchester United remained third.
The report outlines how the Catalan membership has diminished its dependence on broadcast income agreements and has shifted its focus to the income channels beneath its management.
The Spanish big is predicted to carry first place for subsequent yr and will change into the primary $ 1 billion membership within the Cash League in future seasons.
Positions are ranked based mostly on golf equipment' capability to generate income from elements comparable to every day gross sales, broadcasting rights and industrial sources, based mostly on the 2018/19 season. It doesn’t embody cash generated from participant gross sales.
The highest 20 money-generating golf equipment generated the staggering $ 10.three billion within the 2018-19 season, an 11% improve over the earlier yr.
Elsewhere, Manchester United is prone to lose its place because the English Premier League membership with the best earnings subsequent yr because of its declining efficiency on the pitch.
Outdated Trafford's outfit did not qualify for the UEFA Champions League this season and at present sits exterior the qualifying factors for subsequent yr's version.
Deloitte says the membership's anticipated income for the present season "would seemingly see the membership falling to the bottom place ever within the Cash League in subsequent yr's version."
Nonetheless, United's present demise is nice information for 2 of its fiercest rivals.
The Manchester Metropolis league champion, in the meantime, drops from sixth place, however is prone to return to the highest 5 subsequent yr if his new enterprise offers groan with a run on this season's Champions League.
Elsewhere, Tottenham's eighth place has risen to its highest place ever to change into London's first revenue-generating membership for the primary time since 1996-97.
He overtook each Chelsea and Arsenal, with the latter falling from the highest 10 because of his continued absence from essentially the most prestigious event in Europe.
To regain his place within the prime 10 is Juventus, with the Italian champion who should thank a person particularly.
The arrival of Cristiano Ronaldo in 2018 allowed the membership to capitalize on its picture which noticed a 17% improve in income.
The talisman has extra Instagram followers than Actual Madrid and Barcelona which, in accordance with Deloitte, has "undoubtedly elevated Juventus' industrial enchantment".
There are solely two new groups that may enter the highest 20 this yr with Olympique Lyonnais and Napoli who will go as much as the 17th and 20th respectively.