Manthos Engineering, LLC is a civil engineering consulting company in Hawaii. We specialize in construction management, design, program management, project management, and planning. We pride ourselves in our ability to design and manage complex projects.

Mr. Pericles Manthos, Owner-Manager, brings over 25 years of versatile and solid engineering and management experience. He has worked in various design and construction management roles for both the private and public sectors. Upon arriving in Hawaii, Mr. Manthos started as a Civil Engineer at the Division of Water and Land Development in the Department of Land and Natural Resources. He then transferred to the Department of Transportation as Oahu District Engineer, and was later appointed State Highways Administrator.

Mr. Manthos returned to the private sector as Manager of Hawaii Operations for a national firm after spending some time on the mainland working on large transportation initiatives in the western states. Upon closure of the Hawaii office, Mr. Manthos started his own civil engineering consulting company - Manthos Engineering.