LARSA 4D is the namesake software of LARSA, Inc. LARSA was founded in 1995 on an unwavering commitment to provide the best structural engineering software and to accommodate each client’s unique engineering needs. After 25-years creating the highest benchmark of accuracy for structural analysis software, LARSA continues to position itself to meet tomorrow’s challenges and to deliver long-term value to its clients. Through our efforts fostering trust with our clients and our investments in academic and research partnerships, LARSA accelerates the growth of new technologies for the advancement of modern infrastructure. Complemented with unparalleled client support, LARSA makes engineers feel comfortable as our developers and support personnel work closely with our end-users to make their work more efficient and effective. Our flagship software, LARSA 4D BRIDGE SERIES, is the trusted company standard at today’s most celebrated firms for bridge design and analysis. Whether you’re tasked with the design and rating of steel girder bridges or designing the next record-setting long-span crossing, LARSA is there to streamline your projects for success with our industry leading experience.