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David Beckham may have a substantial net worth, but his wealth pales in comparison to that of his former team-mate Mathieu Flamini, who has amassed a fortune since retiring from football. The two played together during Beckham's two loan stints at AC Milan. Former England captain Beckham was one of the most marketable sportsmen globally during his playing career. The 50 year old's readiness to seize sponsorship opportunities and other revenue sources arguably laid the groundwork for Cristiano Ronaldo's recent ascension to billionaire status. Beckham accumulated a vast fortune in wages throughout his career, including the eye-watering sums from his LA Galaxy contract. He continues to profit from numerous sponsorship deals, as well as from his stake in Major League Soccer franchise Inter Miami. Upon signing for the Galaxy in 2007 , the football legend was given the option to buy an expansion team. Inter Miami joined MLS in 2020 and has since gained global recognition through the signing of Lionel Messi, with the team estimated to be worth more than $1billion (£760m). According to the 2025 Sunday Times Rich List , David and his wife Victoria Beckham have a combined net worth of £500m . However, this sum is dwarfed by the wealth former Arsenal midfielder Flamini has accrued since co-founding GFBiochemicals. He enjoyed seven years at the Gunners across two separate stints, racking up 246 appearances. His playing career also included spells at Marseille, AC Milan, Crystal Palace and Getafe before hanging up his boots in 2019. Whilst Flamini commanded substantial wages throughout his football career, it is the biochemical firm he established in 2008 that has propelled the three-time France international towards extraordinary wealth. GFBiochemicals has gained recognition for producing levulinic acid which, according to the Daily Mail , cuts CO2 emissions by up to 80 per cent during the manufacture of products such as detergents. The firm develops alternatives to fossil-based products and has emerged as a frontrunner in environmental sustainability. The Sun reports that GFBiochemicals' success has provided its CEO and co-founder Flamini with an estimated net worth of approximately £10bn. Flamini's business achievements have led to him addressing Harvard Business School . He recently had an audience with King Charles III following his involvement with the Circular Bioeconomy Alliance. On Instagram, Flamini posted: "Last week, I had the honor of joining the Circular Bioeconomy Alliance, where global leaders and Indigenous voices are shaping the future of the bioeconomy. Proud that GFBiochemicals stood alongside visionaries building a sustainable world under the guidance of His Majesty King Charles." This is a stark contrast to his time at Arsenal, where he clinched three FA Cups and participated in the 2006 Champions League final. Nevertheless, Flamini has kept some ties to football, starting a supplement business with former Gunners colleague Mesut Ozil.
