At just 17 years old, Liam Fuller has raised $1.4m in pre-seed funding for Source, his agentic AI startup that automates procurement for retailers.
AI procurement start-up Source has secured $1.4m in pre-seed funding in a round led by Square Peg, that also includes former Stripe CTO David Singleton and the Xtripe angel syndicate, made up of various Stripe alumni.
Australian venture capital firm Square Peg was an early backer of Canva and Airwallex, and 17-year-old CEO and co-founder Liam Fuller becomes the youngest founder in their portfolio. Fuller says the investment will go toward recruiting engineers and relocating to San Francisco later this year.
“I was shocked to find that most businesses, especially retailers, still rely on email and Excel to buy hundreds of thousands of dollars’ worth of stock every week,” Fuller says. “Source provides a simple interface allowing retail buyers to understand what they should buy and when, by integrating into Excel, email & ERPs.”
Source plugs into email, sales, inventory and social campaign data feeds, and generates suggested orders with AI, that buyers can edit, approve, and send autonomously to suppliers “in a few clicks”, according to Fuller.
Source came out of a previous project. While still in school Fuller launched a Shopify plug-in CartShare, as part of the Stripe and OpenAI-backed Patch youth accelerator – his “school-bathroom customer call” video went viral with over a million views. A subsequent meeting with CTO Yoan Gabison in a Discord forum led to the creation of Source.
Fuller took advantage of a family visit to Australia in April to secure a meeting with Square Peg co-founder Paul Bassat, and clearly made quite the impression with the funding round closed just a few weeks later.
“I’ve been impressed by many young entrepreneurs, but Liam combines technical sophistication with commercial instincts that are rare at any age,” said Bassat. “We’re not just excited by his current vision for Source – we’re excited by his ability to navigate and adapt as the business evolves. When someone demonstrates this level of execution and strategic thinking at seventeen, the growth trajectory becomes incredibly compelling.”
Founded in 2024 and headquartered in Dublin, the start-up is a Delaware C-Corp, registered under QuickFind AI, and trading under the name Source. It also joined the NDRC Accelerator programme, led by Dogpatch Labs in Dublin.
We’re due to have a chat with the young entrepreneur later today and will update the article here.
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