Below is a list of the top 10 Solar EPC companies worldwide, recognized for their innovation, scale, and quality of service. These companies chose their primary service as “EPC” when applying to the list, and they may also work as developers, installers, electrical subcontractors, installation. Solar EPC (Engineering, Procurement, and Construction) companies play a pivotal role in the global transition to renewable energy. Their expertise in executing large-scale solar projects has been instrumental in the industry's growth. While many were founded in the last two decades, they vary significantly in size, with teams ranging from a handful to several thousand employees. Specializations. Imagine a single photon embarking on a 93-million-mile journey from the sun, only to end its trip on a rooftop in Ohio or a vast desert field in Nevada. In 2024, Mortenson was involved in installing over 2 gigawatts. From multinational firms shaping the utility-scale landscape to emerging contractors carving out niches in community solar and residential installations, the rankings underscore the fact that, big or small, every company on the list is helping expand access to clean energy across the U.
