3i Group plc has closed a majority investment in EC Waste, a vertically integrated provider of solid waste services in Puerto Rico.

EC Waste offers waste services to 80,000 residential, commercial and industrial customers. Additionally, the firm operates four U.S. EPA compliant disposal sites that enable the firm to serve Puerto Rico in an environmentally responsible manner. EC also manages two transfer stations while running a renewable natural gas collection project. The firm has made investments into its infrastructure and operations technology for future growth.

“This is the third platform investment for our North American Infrastructure business, following Smarte Carte and Regional Rail,” said Rob Collins, 3i managing partner. “EC Waste has a proven track record of providing top tier services to the communities it operates in across the island.”

“We look forward to working with 3i to further position EC Waste as the leading, sustainable solid waste services provider in Puerto Rico,” added Randy Jensen, CEO of EC. “With its long-term investment horizon, 3i is the ideal partner as we look to expand our operations in support of the island’s environmental and sustainability goals.”