Infrastructure Engineering Corporation (IEC) is an engineering, construction management, and environmental consulting firm primarily serving public agency clients. Our founding philosophy is to build the firm based on exceptional client service and employee satisfaction. We offer our clients an unmatched commitment to responsiveness and quality and exceptional professional opportunities to our staff.

IEC has a full staff of engineering, environmental, and construction professionals including project managers, construction managers, engineers, environmental compliance and outreach experts, designers, and construction inspectors. We believe that our staff is our greatest resource and we continue to grow to meet the needs of our clients. We strive to develop close working relationships with our clients, and as a mid-size firm, we can move quickly in response to client needs—our size allows us to provide on-the-spot assistance with an emergency situation or a fast-track project, while maintaining sufficient staff and resources to manage large multi-discipline projects.

Services We Provide


IEC provides a full range of civil engineering, environmental compliance, and construction management services to assist our clients from preliminary planning through project completion. We also provide community outreach services in support of project planning, engineering, and construction. From substantial experience in the planning, design, and management of public infrastructure undertakings, we understand that projects today are driven by a balance of economic, social, and political factors. We believe in working in partnership with our clients to meet these challenges, and with (5) offices in southern and northern California, we are conveniently situated to serve clients throughout the state.

Our in-house capabilities include project management, civil and mechanical engineering and design, as-needed municipal “staff extension” services, water and wastewater master planning and hydraulic modeling, CEQA/NEPA compliance, regulatory permitting, stakeholder outreach, GIS design and implementation, sewer flow monitoring, survey, and construction management and inspection services. We also have established relationships with a number of recognized specialty firms that support us with additional disciplines and services as needed. Our experienced construction management staff is capable of managing a wide variety of complex infrastructure projects.