Solaris Energy Infrastructure, Inc. designs and manufactures specialized equipment for oil and natural gas operators in the United States. The company provides technician support, last mile, and mobilization logistics services. It is also involved in the transloading and storage of proppant or railcars at its transloading facility. In addition, the company develops Railtronix, an inventory management software; and all-electric equipment that automates the low pressure section of oil and gas well completion sites. It serves exploration and production, and oilfield services industries. The company was formerly known as Solaris Oilfield Infrastructure, Inc. and changed its name to Solaris Energy Infrastructure, Inc. in September 2024. Solaris Energy Infrastructure, Inc. was founded in 2014 and is headquartered in Houston, Texas.