Xpanner raises $18M to retrofit construction machines with AI
What's the deal? Xpanner, a California-based construction tech startup, has raised $18M in a Series B bridge round led by Korea Investment PartnersDealroom has a profile for this one. Try Dealroom →, with participation from KB Investment Co. The round brings Xpanner's total funding to $38M since it was founded in 2020.
The company's flagship product, the X1 Kit, retrofits existing construction equipment with hardware and software to enable autonomous operations like piling and grading. Customers pay through an Automation-as-a-Service model — subscribing to task-specific licences rather than making large upfront investments.
Co-founders Henri Lee, David Shin, and Ryan Park bring experience from Bobcat, Hyundai Infracore, and Volvo Construction Equipment. The company reports revenue growth from $3M in 2023 to $21M in 2025, with Q1 2026 already at $8M and positive EBIT.
Why now? Physical AI investment has surged past $37B globally in 2026, driven largely by construction's chronic labour shortages. Early adopters like Mortenson and Black & Veatch are already using Xpanner's technology, and the company says it has gross margins exceeding 80% with near-zero churn.
What could go wrong? Autonomous construction equipment raises questions around safety liability and regulatory approval on job sites. Scaling a subscription model for heavy machinery also means Xpanner must maintain hardware reliability across diverse environments — any equipment failure could undermine trust quickly.
The company's reliance on retrofitting existing machines, rather than building its own, ties it to third-party equipment lifecycles and compatibility challenges.
The signal: Xpanner's revenue leap from $3M to $21M in two years, paired with gross margins above 80%, suggests its retrofit-and-subscribe model is gaining real traction in an industry notoriously slow to adopt new technology. Korea Investment Partners' lead role reinforces a pattern of South Korean investors leveraging their country's deep construction and heavy machinery expertise — through firms like HD Hyundai InfracoreDealroom has a profile for this one. Try Dealroom → — to back US-based contech ventures bridging that know-how with domestic demand.
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