RICK CASTILLO
PRESIDENT & PRINCIPAL, CASTILLO ENGINEERING, MAITLAND
The Castillos know solar energy. Founded in 1998 as a rooftop solar company, Castillo Engineering has grown into a leading solar energy design and consulting firm that’s completed 1.5 gigawatts of solar and energy storage projects. Licensed in all 50 states, Puerto Rico and Washington, D.C., it’s become a go-to solar engineering firm for utilities. A Venezuelan immigrant, Castillo has been passing the torch to his son Christopher, who became CEO in 2020 after serving as vice president since 2008. The firm was ranked by Inc. 5000 three years in a row as one of the fastest-growing companies in the U.S. In 2023, it launched SolarLetters.com, a service that uses AI to automate documentation for solar installation companies.