Spangle AI, an agentic infrastructure layer for commerce, said it raised a $15 million Series A round led by NewRoad Capital Partners with participation from Madrona, DNX Ventures, Streamlined Ventures, and strategic angel investors, bringing total funding to $21 million.

Spangle positions its platform as a bridge between AI-driven product discovery—via AI search, social, recommendation engines, and emerging AI agents—and on-site conversion, with the goal of unifying data and execution across the commerce stack. The company said its system uses a brand-specific reasoning engine, ProductGPT, paired with “Seller Agents” that execute actions in real time and feed performance insights back into the model.

Spangle said that in the nine months since launch, it has signed nine enterprise clients that collectively generate $3.8 billion in online sales, driven 57% average month-over-month growth in traffic flowing through Spangle experiences, and quadrupled its revenue run rate from Q3 to Q4. The company cited performance outcomes including up to 50% conversion lifts and up to 2x return on ad spend (ROAS), with examples from customers such as REVOLVE and Steve Madden.

Spangle said it will use the new funding to accelerate R&D, advance its AI models, expand agentic infrastructure, and scale its engineering team.

KEY QUOTES:

“Having built unified AI systems at Amazon, including Alexa and customer service workflow automation at massive scale, we saw what’s broken in traditional e-commerce stacks: fragmented data, slow feedback cycles, no intelligence layer tying it together.”

“Traditional commerce stacks were not designed for unified experiences. LLMs and agentic systems have made this level of integration achievable for the first time. Two years ago, this wasn’t economically or technically viable. Today, with Spangle, it is.”

Fei Wang, CTO, Spangle AI

“Spangle bridges that gap. We’re building infrastructure where AI-driven discovery and on-site execution operate as one intelligence layer, connecting upstream intent to real-time conversion.”

Maju Kuruvilla, CEO, Spangle AI

“As a data-driven, innovation-focused retailer, we’re always looking for ways to elevate the customer journey and maximize conversion. The adaptive nature of Spangle AI meant we could meet shoppers in the moment, all while staying on-brand.”

Ryan Pabelona, Vice President of Performance Marketing, REVOLVE

“Spangle’s customers aren’t just expanding, they’re advocates. That’s the demand-driven traction we look for. As operators and technologists who’ve run retail businesses, we know point solutions won’t capture the agentic commerce opportunity. Spangle is building the AI-native infrastructure commerce needs, and traction with tier-one brands gave us conviction.”

Dave Finnegan, Strategic Advisor, NewRoad Capital Partners

“Spangle’s intelligence truly gets smarter with every session and interaction. Many attempt this, but it’s rare to see a data moat deepen this efficiently and translate into revenue outcomes this quickly.”

Rickie Koo, Partner, DNX Ventures

“When we led Spangle’s seed round, we saw a team tackling commerce’s most expensive inefficiency: paid traffic conversion. There’s no shortage of AI hype, but Spangle stands apart for its agentic solution already delivering major performance gains for global brands. That combination of innovation and proven impact is why we’re excited to double down.”

Scott Jacobson, Managing Director, Madrona

“As commerce shifts toward agentic AI, partnering with Spangle keeps us at the cutting edge and helps us reimagine how we leverage AI across the customer journey. We appreciate that Spangle’s intelligence layer is tailored specifically for Steve Madden. The models and agents reflect our brand and get smarter over time versus generic AI solutions.”

Colleen Waters, VP of Commerce, Steve Madden