Behro Comprehensive Consulting Engineers was originally founded in 1987 (1366 SH), in response to the growing need for the design and construction of metro lines in the capital city of Tehran, aligned with the strategic goals of the Tehran Urban and Suburban Railway Company. The firm was officially registered in 2001 (1380 SH) by a group of experienced engineers with years of expertise in the field.Since its establishment, Behro has strived to consolidate and institutionalize metro engineering as an integrated discipline, combining specialized knowledge across various technical fields, while utilizing the latest scientific and technological advancements.Over the past decades, Behro has served as the principal consultant for Tehran Metro, playing a key role in design and engineering, supervision and quality control, and project management and client advisory services in design-build projects. In recent years, with continued growth and development, Behro has extended its services beyond the capital to support metro systems in other major Iranian cities including Karaj, Isfahan, Shiraz, Tabriz, and Rasht.Today, Behro brings together a wide range of technical and engineering expertise across disciplines such as civil and structural engineering, architecture, railway engineering, traffic and geotechnics, mechanical engineering, and all branches of electrical engineering (including telecommunications, control, and power systems), as well as specialized fields in rolling stock and operations, and several interdisciplinary sciences.