Phia
Category: AI Agents
An AI-powered shopping assistant that instantly compares prices across 40,000+ retail and secondhand websites in real-time, helping users save money and shop more sustainably. Phia was founded in 2024. The company is led by Phoebe Gates & Sophia Kianni (Co-CEOs). Based in New York, USA. Team size: 11-50. Total funding raised: $43.0M. Latest round: Series A ($35.0M, Jan 2026). Key investors include ["Notable Capital","Kleiner Perkins","Khosla Ventures","eBay Ventures"].
- Founded
- 2024
- Headquarters
- New York, USA
- Team size
- 11-50
- Total funding
- $43.0M
Value proposition
Automatically compares prices across 40,000+ retail and secondhand sites in one click, eliminating the need for multiple tabs and ads while promoting sustainable shopping through secondhand alternatives that reduce carbon emissions by 80%.
Products and solutions
["AI Shopping Assistant (iOS app & Chrome browser extension)","Real-time Price Comparison Engine (40,000+ sites)","Secondhand Market Integration (The RealReal, Poshmark, Vestiaire Collective)","AI Outfit Finder (snap-a-photo feature)","\"Should I Buy This?\" Decision Support Tool","Digital Closet (in development)","Personalized Shopping Agent (in development)"]
Unique value
First and only tool that instantly compares fashion across both primary retail and secondhand sites in one click—no extra tabs, no ads, no extra searching. Features proprietary multimodal AI agents that operate at 10x the speed and half the cost of off-the-shelf GPTs, with sustainability metrics integrated directly into the shopping experience.
Target customer
Gen Z and millennial women (ages 18-35) who are fashion-conscious, budget-aware, digitally native, and value sustainability in their shopping decisions
Industries served
["E-commerce & Digital Retail","Fashion & Apparel","Artificial Intelligence & Machine Learning","Sustainability & Green Technology","Consumer Technology"]
Technology advantage
Built high-performance ML infrastructure that has reduced search latency by 80% and increased monetized GMV by 40%. Proprietary multimodal agents can analyze large datasets across 250+ million secondhand items and 40,000+ retail sites in real-time. Developing in-house search engine and LLM infrastructure with eBay and Pinterest alumni talent.
How they differentiate
Only AI shopping agent that instantly compares prices across both retail AND secondhand markets (250M+ secondhand items, 150+ resale platforms) with proprietary multimodal AI agents operating at 10x speed and 50% cost of off-the-shelf GPTs. Features unique 'Should I Buy This?' instant price evaluation and sustainability metrics showing 80% carbon footprint reduction for secondhand purchases.
Main competitors
["Honey (PayPal)","Rakuten Rewards","Karma"]
Key partnerships
["Notable Capital (Series A lead investor)","Kleiner Perkins (Seed lead investor)","Khosla Ventures (investor)","eBay Ventures (strategic investor)","Celebrity investors: Hailey Bieber, Kris Jenner, Sheryl Sandberg, Sara Blakely, Michael Rubin","6,200+ retail brand partners","Secondhand platforms: The RealReal, Poshmark, Vestiaire Collective","Tech talent from eBay and Pinterest"]
Notable customers
["6,200 retail brand partners (contemporary to luxury)","The RealReal","Poshmark","Vestiaire Collective"]
Major milestones
["Launched product April 2025","Raised $8M Seed round led by Kleiner Perkins (Sep 2025)","Achieved 500K users and 5,000 brand partnerships (Sep 2025)","Featured in TIME100 Next 2025","Raised $35M Series A at $185M valuation (Jan 2026)","Surpassed 1M users milestone (Jan 2026)"]
Growth metrics
1M+ users achieved in 10 months, 11x revenue growth since April 2025 launch, 6,200 retail brand partnerships, 640K+ downloads in first 5 months
Market positioning
AI-native shopping agent for fashion targeting Gen Z and millennial women, positioned as 'Google Flights for fashion' - bridges contemporary and luxury brands with resale market
Geographic focus
United States (New York HQ)
Patents and IP
No registered patents publicly disclosed as of latest update (January 2026)
About Phoebe Gates & Sophia Kianni (Co-CEOs)
Phoebe Gates is a Stanford University graduate (2024) with a Bachelor of Science in Human Biology and a minor in African Studies. She interned at British Vogue (2022) focusing on fashion, technology, and sustainability. She is a recognized reproductive health advocate and social impact advocate. Sophia Kianni is a Stanford graduate, the youngest UN Advisor to the UN Secretary-General on climate change, founder of Climate Cardinals, Forbes 30 Under 30 honoree, and a social entrepreneur.
Official website: https://phia.co/