3si, Inc. is a well-established architectural and engineering firm based in Brookfield, Illinois. With a dedicated team of four professionals, the company specializes in providing a wide range of services including new construction for residential, office, mercantile, industrial, and light commercial projects. Additionally, 3si, Inc. offers expertise in building maintenance work such as fa�ade repairs, inspections, small projects, and interior renovations. With a history dating back to 1999, the founder brings over 44 years of experience in the Chicago area, having worked on diverse projects spanning residential, commercial, retail, civic, educational, and industrial sectors.
Founded by an industry veteran with a degree from the University of Illinois School of Architecture in 1981, 3si, Inc. has a strong foundation built on a wealth of knowledge and expertise. The company’s philosophy revolves around a commitment to delivering high-quality architectural and engineering services tailored to meet the unique needs of each client. With a focus on attention to detail and a comprehensive understanding of all aspects of building projects, 3si, Inc. has earned a reputation for excellence in the industry.
Over the years, 3si, Inc. has established itself as a trusted partner for clients seeking reliable and innovative architectural and engineering solutions. The company’s portfolio showcases a diverse range of successful projects, reflecting a deep understanding of design principles, construction techniques, and industry best practices. With a track record of delivering exceptional results and exceeding client expectations, 3si, Inc. continues to be a leading provider of architectural and engineering services in the Brookfield area and beyond.