mission-critical-facilities
(3)
Phaidra
Phaidra is a Seattle-based industrial AI company that builds self-learning, reinforcement-learning control agents for the world's most complex mission-critical facilities - chief among them the data centers powering the AI boom. Founded in 2019 by alumni of Google DeepMind and the HVAC and defense industries, Phaidra's software plugs into existing building automation and SCADA systems without new hardware, learns a facility's behavior, and continuously adjusts cooling, power and workload setpoints to cut energy use while improving reliability. The company raised a $50M+ Series B in October 2025 led by Collaborative Fund with participation from NVIDIA, positioning itself to make 'AI factories' radically more resource-efficient.
Vigilent
Vigilent is an Oakland, California company that uses artificial intelligence and machine learning to optimize cooling in data centers, telecom facilities and other mission-critical buildings. Its software pairs wireless sensors with self-learning control algorithms to automatically match cooling output to real-time heat load, cutting cooling energy use by 40 percent or more while eliminating hot spots and reclaiming stranded capacity. Founded in 2008 by MIT-trained control engineer Cliff Federspiel, the company has deployed across 1,500-plus facilities in 36 countries and counts Verizon, NTT, Digital Realty, IBM and Telus among its customers.
Legence
Legence is North America's largest pure-play building performance platform, providing integrated advisory, engineering, design, fabrication, installation, and maintenance services for high-performance and mission-critical facilities. Formerly Therma Holdings and backed by Blackstone, the company brands itself the world's first Energy Transition Accelerator, helping data centers, healthcare, education, biopharma, semiconductor, and commercial real estate clients cut carbon, lower utility costs, and run buildings more efficiently. Legence went public on Nasdaq under the ticker LGN in September 2025.