Inox Green Energy Services, Mitarsh Energy, Jakson Green, Inspire Clean Energy, and Sterling & Wilson emerged as the top solar project operations and maintenance (O&M) service providers in India for 2025, according to Mercom’s India Solar Market Leaderboard 2026 Report.

Together, these companies accounted for approximately 86% of O&M capacity contracted in 2025, reflecting high market consolidation among leading players and highlighting the growing preference for experienced service providers capable of managing large, complex renewable energy projects.

Inox Green led the market in 2025, accounting for about 27% of the total contracted solar O&M capacity. The company’s growth was supported by its ability to secure long-term service agreements for utility-scale projects and maintain scale-driven operational efficiency.

Mitarsh Energy followed closely, accounting for roughly 25% of O&M capacity additions in 2025. The company expanded its operations in the solar and hybrid power project segment, building a diversified O&M portfolio aligned with growth in utility-scale installations.

Jakson Green ranked third, adding approximately 14% of the contracted capacity in 2025. Its integrated engineering, procurement, and construction (EPC) and O&M capabilities supported contract wins by offering end-to-end solutions, particularly for large-scale projects transitioning into long-term operations.

Inspire Clean Energy secured the fourth position with over 12% share. The company focuses on solar asset management and performance optimization, with services spanning utility-scale and distributed projects. The growth reflects rising demand from independent power producers and rooftop asset owners seeking specialized O&M solutions to enhance efficiency and extend asset lifecycles.

Sterling and Wilson came in fifth, accounting for more than 8% of the market share in 2025. Leveraging its global EPC experience and large installed project base, the company continued to expand its portfolio by converting executed projects into long-term O&M service contracts across domestic markets.

India’s solar O&M services market continued to expand in 2025, supported by a rapidly growing installed base of utility-scale and open access projects. As more projects transition from commissioning to the operational phase, the focus has shifted toward ensuring high project performance, minimizing downtime, and improving generation efficiency.

This trend has led to greater reliance on specialized O&M providers, with developers and asset owners increasingly outsourcing operations to optimize long-term asset performance.

In 2025, several entities floated tenders for comprehensive O&M services totaling over 1.6 GW across ground-mounted and rooftop solar projects, according to Mercom’s India Solar Tender Tracker.

In May 2025, Inox Green signed agreements to provide O&M services for 285 MWdc of solar projects. In September 2025, the company received another order covering 96.6 MWdc of projects in Maharashtra and 92.5 MWdc in Gujarat and Madhya Pradesh.

Mitarsh Energy signed O&M agreements for 375 MWdc with Hero Future Energies in May 2025 and 190 MWdc with Reliance New Energy, a wholly owned subsidiary of Reliance Industries, in June 2025.

Jakson Green secured 1 GWdc of O&M projects across Rajasthan, Chhattisgarh, and Tamil Nadu during the year, reflecting strong execution capability and sustained demand for third-party O&M services.

The market is also witnessing a gradual shift toward data-driven maintenance practices, including remote monitoring, predictive analytics, and performance optimization tools. At the same time, rising competition is exerting pressure on service pricing, while scale, execution capability, and long-term contract visibility are emerging as key differentiators.

Overall, the expansion of O&M portfolios is closely linked to the rapid pace of solar installations in India. As more capacity comes online, demand for structured, technology-driven maintenance is expected to increase, driving greater outsourcing and longer-term service agreements. Installation growth will remain a key driver for the O&M services market.

Mercom’s India Solar Market Leaderboard report covers the market landscape across the entire supply chain. For the detailed and comprehensive report, click here.

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