Updated: August 19, 2026
Bill Gates Daughter Phia Startup: Phoebe Gates, the youngest daughter of Bill Gates and Melinda French Gates, has stepped into the tech world with her own venture. Alongside co-founder Sophia Kianni, she launched Phia, an AI-powered shopping platform designed to make online fashion purchases smarter, more affordable, and more sustainable. The startup has drawn significant attention for its rapid growth, high-profile investors, and the founders’ deliberate effort to build independently of family wealth.
Table of Contents
What Phia Does
Phia functions as both a mobile app and a browser extension. Users can search for fashion items and receive comparisons of prices across hundreds of millions of products from major retailers and resale platforms. The tool highlights better deals, tracks discounts in real time, and surfaces secondhand options when available. Founders have described it as a personal shopping companion that answers the everyday question of whether a purchase is truly worth it.
The platform aims to reduce waste by encouraging more thoughtful buying and easier access to pre-owned goods. It has partnered with thousands of brands and retailers while building an in-house search engine powered by artificial intelligence.
Funding and Growth
Phia launched publicly in spring 2025. Within months it reported hundreds of thousands of users. In September 2025 the company closed an $8 million seed round led by Kleiner Perkins. Celebrity and industry backers included Kris Jenner, Hailey Bieber, Sara Blakely, and others.
A larger Series A followed, raising approximately $35 million and bringing total funding to more than $43 million. The round valued the company near $185 million. Notable Capital led the investment, with participation from firms such as Khosla Ventures and returning support from Kleiner Perkins. Phoebe Gates has stated that neither she nor the company accepted direct investment from her parents.
Key milestones include:
- Rapid user growth after launch
- Expansion of search capabilities across millions of fashion items
- Strong early revenue growth reported by the company
- High-profile investor roster spanning venture capital and entertainment
Founders and Approach
Phoebe Gates and Sophia Kianni met as roommates at Stanford University. They developed the idea from their own experiences shopping for deals and secondhand fashion. Gates has spoken about wanting to prove herself on merit and has kept her family name out of pitch materials. The pair have emphasized building a product they themselves use daily and surrounding the company with people who understand modern consumer shopping habits.
The founders have also faced recent scrutiny. In mid-2026 reports alleged that Phia’s browser extension engaged in “cookie stuffing,” a practice that can improperly claim commissions on sales it did not generate. The company responded that the relevant features had been disabled, that it was reviewing transactions and issuing reversals where appropriate, and that it was strengthening compliance measures.
Quick Facts Table
| Detail | Information |
|---|---|
| Company Name | Phia |
| Co-Founders | Phoebe Gates and Sophia Kianni |
| Launch | Spring 2025 |
| Focus | AI-powered fashion shopping and price comparison |
| Total Funding (approx.) | $43+ million |
| Notable Investors | Kleiner Perkins, Notable Capital, celebrity backers |
| Core Product | Mobile app and browser extension |
Conclusion
Phia represents Phoebe Gates’ first major step as an entrepreneur outside her family’s long shadow in technology and philanthropy. The AI shopping startup has moved quickly from a dorm-room concept to a funded company with a growing user base and ambitious goals for personalized, more sustainable online retail.
While recent questions about affiliate practices have added complexity, the core product continues to target a clear consumer frustration: the difficulty of finding the best price and most responsible option when shopping online. As the company matures, its progress will be watched closely both for its technology and for how a high-profile young founder navigates the realities of scaling a modern e-commerce tool.