SOLO

The company's origins trace back to the founders' prior ventures in the home security and solar sales sectors. In 2013, Larkin and Smith founded Evolve Solar, where they developed a centralized proposal system to streamline the sales process, significantly reducing the time to close deals. This system allowed sales representatives to focus on customer interaction while a remote team handled proposal creation. After Evolve Solar was acquired in 2015, the founders launched Encōr Solar and began offering their back-office proposal services to other companies. The high demand for these services led to the official inception of SOLO in 2018, with a focus on developing high-end software to support other businesses in the industry.

The core of SOLO's offering is a sales conversion and operations platform designed to manage the entire process from proposal to project completion. Key features include a tool for creating dynamic and customizable solar proposals in minutes, integrated financing options with major lenders, and an automated document management system that populates contracts for e-signature. The platform also provides full-service computer-aided design (CAD) and engineering services, ensuring designs are accurate and compliant with local regulations. A key differentiator is its SunPixel™ technology, which provides highly accurate production forecasting for solar designs. To expand its capabilities, SOLO acquired SolarNexus, a customer relationship management (CRM) software provider, in 2023.

Serving thousands of companies, from startups to large installers, the platform aims to reduce operational complexity and overhead for its clients. It enables sales teams to sell for multiple installers while maintaining administrative controls. The company's revenue reached an estimated $75 million annually as of August 2025. SOLO has received an undisclosed amount of seed funding and has backing from private equity and angel investors.