Gary J. Klein

Provides structural engineering services

Provides architecture, engineering and planning services

Functions as a College/University

Operates as a professional organization of civil engineers

Operates as an institute for the development of consensus-based standards, technical resources, educational & training programs and certification programs

The Structural Engineers Association of Illinois is a company based in Chicago, IL.

Prestressed Concrete Institute, Inc. (PCI) is an industry association dedicated to advancing the precast and prestressed concrete sector. The private company is based in Chicago, IL. PCI develops and disseminates technical knowledge, industry standards, and best practices, and offers certification programs for plants, erectors, and personnel. The institute supports professionals and organizations through memberships that provide access to technical resources, design guides, educational materials, publications, and industry events. PCI promotes sustainable and resilient precast concrete solutions by tracking innovations in low-carbon technologies and providing resources such as environmental product declarations and life-cycle assessments. The institute fosters professional development and industry excellence through awards programs and serves as a hub for certified plant directories, project profiles, career resources, and standards development activities. PCI advances the use of precast concrete in diverse structural applications, supporting architects, engineers, contractors, and other stakeholders with quality assurance, research, and collaborative industry engagement.