Lin Engineering, Ltd.

Lin Engineering, Ltd. is a consulting engineering firm established in 1991 and classified as a DBE (Disadvantaged Business Enterprise) firm. Over the years, the company has served as a prime consultant for major public agencies including the Illinois Department of Transportation (Illinois D.O.T.), the Illinois State Toll Highway Authority, Metra, the City of Chicago, and the Capital Development Board. In addition, Lin Engineering has provided specialized support as a subconsultant to numerous design firms across Illinois and neighboring states.

Structural Engineering has remained the firm’s core focus since the beginning, forming the foundation of its technical strength and project delivery. At the same time, Lin Engineering has expanded its capabilities and built a strong reputation in Land Surveying and Transportation services—allowing the firm to support a wider range of infrastructure and development projects with dependable expertise.

Lin Engineering is prequalified across all nine districts in Illinois and also in Iowa, reflecting its proven performance, compliance, and readiness to serve public and private sector clients. With decades of experience and a reputation for quality-driven engineering, Lin Engineering continues to deliver practical, professional solutions that support safe, efficient, and lasting infrastructure.