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PCI of Illinois & Wisconsin represents 14 PCI-certified precast concrete producers across Illinois and Wisconsin. Filter by product, state, or certification to find the right plant for your project.

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What the PCI certification codes mean

PCI plant certification is audited quality assurance for precast plants. The letter is the product group (A architectural, B bridge, C commercial structural); the number is the capability level. Full program details at pci.org →

AA
Architectural precast — multiple mixes and textures, three-dimensional projections, radius molds, sequential returns, and the most stringent product and installation tolerances
AB
Architectural precast — multiple mixes and textures, three-dimensional projections, radius molds, or sequential returns
AC
Architectural precast — primarily cladding or non-load-bearing products with architectural finishes (plant-applied finishes, formliners, brick veneers, extruded profiles)
AD
Architectural precast — structural products with an architectural finish
AT
Miscellaneous architectural trim units — sills, copings, bollards, planters, pavers, and similar shapes
B1
Precast bridge products, no prestressed reinforcement — piling, pile caps, retaining walls, parapets, sound barriers
B2
Prestressed miscellaneous bridge products (non-superstructure)
B3
Prestressed straight-strand bridge beams (superstructure)
B4
Prestressed deflected-strand bridge beams (superstructure)
C1
Precast concrete products, no prestressed reinforcement — piling, retaining walls, floor and roof slabs
C2
Prestressed hollow-core and repetitively produced products — hollow-core slabs, wall panels, poles
C3
Prestressed straight-strand structural members
C4
Prestressed deflected-strand structural members

The “-IL” suffix indicates the plant is qualified for Illinois DOT (IDOT) work in that category.