Viabot raised a $24 million Series A on September 17, 2026 to scale its autonomous outdoor cleaning robots across U.S. commercial properties. The Santa Clara-based company also disclosed a broader positioning shift: the same fleet that sweeps a parking lot at 2 a.m. is increasingly being sold as a soft-security patrol, watching for loiterers and reporting anomalies while it works.
Who wrote the check
Walden International led the round, joined by CDIB Capital Group and Stalwart Ventures. Existing backers Baseline Ventures, Era Ventures, Morado Ventures and SOSV also participated. The Series A brings Viabot's total capital raised to $43 million and will fund new hires across sales and engineering, faster iteration of the Viabot One platform, and improvements to the robotics-as-a-service (RaaS) stack that operators use to manage fleets.
Sweeping plus soft security
Viabot One handles debris up to 10 inches in size — leaves, gravel, cups, plastic — and hot-swaps its own batteries for 12 to 24 hours of continuous operation on a standard 120V outlet. It also carries loitering detection and asset monitoring, letting facility managers replace a portion of overnight security spend with the same machine that does the sweeping. Viabot says its robots currently service more than 25 million square feet of commercial real estate.
Positioning inside the physical AI wave
The round lands in a market where investors are pouring record capital into physical AI — robots grounded in real environments — and where cleaning has emerged as one of the more defensible outdoor use cases. It sits alongside broader deployments of autonomous mobile robots documented in recent coverage of Vecna Robotics and comes as more categories — from solar deployment to agriculture — move from pilots to fleets.
What Viabot is buying with the money
CEO Gregg Ratanaphanyarat framed the raise around utility: "Technology should be extremely helpful, beautifully-designed and built to perform meaningful tasks." Baseline Ventures' Steve Anderson added that the best technology "becomes part of everyday life without asking people to think twice." Practically, the capital will accelerate go-to-market with property managers, expand the engineering team building new robot form factors, and harden the RaaS platform that lets a single operator dispatch multiple machines across a portfolio.
Reporting based on coverage from PR Newswire, Robotics and Automation News and daily.dev.