For more than two decades, Sunup has been delivering performance-driven operations and maintenance (O&M) solutions for commercial and industrial solar assets across California, Arizona, and beyond. From rooftops to ground-mounted arrays, we help solar asset owners maximize ROI, maintain compliance, and protect long-term asset value. Our longevity in the industry reflects not only our technical expertise but also our unwavering commitment to quality, reliability, and customer success. We bring this mission to life every day through rigorous monitoring, preventive maintenance, and rapid-response corrective services, all tailored to the unique needs of commercial solar portfolios. At Sunup, we don’t just maintain solar systems—we build lasting relationships with our clients . Our dedication to service excellence is reflected in our industry-leading Net Promoter Score (NPS) of 97% , which ranks us among the top-performing O&M providers nationwide. We are the leading commercial solar O&M service company in California and Arizona. “Sunup’s team is proactive, responsive, and highly skilled. They’ve transformed the way we manage our solar assets.” — C&I Solar Asset Owner