Limelight Steel develops a laser furnace that converts iron ore into molten iron metal using semiconductor laser diodes as electrified industrial heat, targeting the primary steelmaking process. The company's technology processes both high- and low-grade iron ore fines without requiring chemical reducing agents or pre-processing steps like sintering or pelletization, and claims up to 20% energy savings compared to traditional blast furnace methods. Olivia Dippo is the CEO and founder. The company received $1.69 million in U.S. Department of Energy SBIR funding and has also received $2.9 million total from the Department of Energy. Limelight Steel is based in Oakland, California.