Greek Australian innovators are making their mark among the nation’s wealthiest young business figures, with White Fox Boutique founders Georgia and Daniel Contos, fitness mogul Kayla Itsines, and Babyboo siblings Argylica and William Conditsis all featuring prominently in the Financial Review Young Rich List 2025.
The list celebrates Australia’s most successful entrepreneurs aged 40 and under, showcasing the next generation of talent driving industries from fashion to fitness.
17. Georgia & Daniel Contos
Wealth: $330 million | Ages: 34 & 35
Siblings-in-law Georgia and Daniel Contos have built a fashion empire with White Fox Boutique, the online retailer behind the oversized hoodies and streetwear adored by Australian youth.
Launched on eBay, the brand skyrocketed through savvy social media marketing and influencer partnerships.
Beyond fashion, the couple have also become key players in Sydney’s property market, with holdings valued at around $150 million.
In 2025, White Fox purchased a five-storey office building for approximately $70 million to serve as its new headquarters.
Their wealth rose 65% from last year’s $200 million.
40. Kayla Itsines
Wealth: $176 million | Age: 34
Adelaide-born fitness entrepreneur Kayla Itsines co-founded the global fitness platform Sweat after first finding fame with her Bikini Body Guide e-books in 2013.
Her Instagram transformations inspired millions, leading to the 2015 launch of the Sweat with Kayla app alongside Tobi Pearce.
The business rapidly grew, with revenues nearing $100 million before being sold to iFit in 2021 for a reported $US150 million.
After the app faltered under new ownership, Itsines and Pearce bought it back in 2023. She continues as head trainer and the public face of the brand.
Her wealth increased 3% from last year’s $171 million.
68. Argylica & William Conditsis
Wealth: $90 million | Ages: 32 & 30
Argylica and William Conditsis have turned a teenage side hustle into a global fashion label. Their brand, Babyboo, evolved from Argylica’s early venture selling “bedazzled” heels online to a thriving women’s fashion e-commerce business known for its figure-hugging, sparkly designs.
With nearly 4 million Instagram followers and 1.4 million on TikTok, the Sydney-based label continues to grow rapidly. The siblings’ combined wealth climbed 29% from last year’s $70 million.
Source: AFR.
