R-Zero has raised $175.0M in total across 3 funding rounds.
R-Zero's investors include Bolt, Bonfire Ventures, DBL Partners, Future Shape, GE Ventures, Kleiner Perkins, M12, M13, Matter Venture Partners, Marc van den Berg, Paladin Capital Group, Piva Capital.
R-Zero is a San Francisco-based smart building technology company that provides a vertically integrated platform for optimizing indoor environments, focusing on energy efficiency, air quality, occupancy insights, and pathogen reduction.[2][5] Originally founded to address pathogen transmission during the COVID-19 era with UV-C disinfection technologies, it now serves commercial, healthcare, government, data center, and office sectors by delivering real-time data on IAQ monitoring, high-efficiency HVAC filtration, space utilization sensors, and occupancy-based controls to cut energy costs, boost productivity, and enhance building health.[1][2][3][4][5] With $161.5M in total funding, including a $105M round, R-Zero demonstrates strong growth, evidenced by recent awards like "Most Disruptive Technology" at Data Center World 2025 and deployments with Fortune 100 firms and healthcare systems.[2][4][5]
R-Zero was founded in the COVID-19 era as the first company built specifically to combat pathogen transmission in indoor spaces, starting with hospital-grade UV-C disinfection technologies and science-backed protocols to make them accessible to businesses.[1] Emerging from this crisis-driven need, it evolved into a broader smart building platform, headquartered at 595 Pacific Ave in San Francisco, with around 204 employees and $41.8M in revenue.[2] Key pivots include expanding from disinfection to IAQ monitors (RESET-certified, launched August 2024), smart HVAC filtration, and occupancy analytics, driven by post-pandemic demands for healthier, efficient buildings; leadership under CEO Jennifer Nuckles has guided this shift, as seen in 2025 award wins for filtration tech.[2][4]
R-Zero rides the wave of smart buildings and sustainability trends, capitalizing on post-COVID emphasis on indoor air quality, hybrid work-driven space optimization, and regulatory pushes for energy efficiency amid rising operational costs.[2][4][5] Timing aligns with aging HVAC infrastructure, AI/data center booms requiring constant cooling, and ESG mandates, where its no-complexity upgrades deliver immediate savings without capex-heavy retrofits.[4] It influences the ecosystem by operationalizing biosafety for public/government sectors and enabling data-driven real estate decisions for enterprises, reducing waste in underutilized offices and healthcare spaces while advancing IoT/building tech standards.[3][5]
R-Zero is positioned for expansion in energy-intensive verticals like data centers and healthcare, with its filtration and IAQ tech set to benefit from tightening global efficiency regs and AI infrastructure growth. Trends like edge computing, net-zero mandates, and advanced occupancy AI will amplify demand for its seamless, sensor-driven optimizations. Expect deeper integrations with BMS/AI platforms and public sector scaling, evolving its influence from crisis responder to essential efficiency enabler—protecting what matters most in smarter, healthier buildings.[4][5]
R-Zero has raised $175.0M across 3 funding rounds. Most recently, it raised $110.0M Series C in February 2023.
| Date | Round | Lead Investors | Other Investors |
|---|---|---|---|
| Feb 1, 2023 | $110.0M Series C | Bolt, Bonfire Ventures, DBL Partners, Future Shape, GE Ventures, Kleiner Perkins, M12, M13, Matter Venture Partners, Marc van den Berg, Paladin Capital Group, Piva Capital, Point72 Ventures, Qualcomm Ventures, SOSV, Greg Bettinelli, Bradley Horowitz, Gautam Gupta, William Miller | |
| Jun 1, 2021 | $50.0M Series B | Bolt, DBL Partners, Future Shape, GE Ventures, Kleiner Perkins, M13, Matter Venture Partners, Marc van den Berg, Paladin Capital Group, Piva Capital, Bradley Horowitz, Gautam Gupta, William Miller | |
| Sep 1, 2020 | $15.0M Series A | DBL Partners, Future Shape, GE Ventures, Marc van den Berg, Paladin Capital Group, Piva Capital, SOSV, Bradley Horowitz |
