- Akron Brick and Block
 - Manufacturer of concrete block and speciality products such as pavers, retaining walls, split-face block, and lightweight, masonry units. Brands include Quik-Brik and Belgard. - American Insulock Inc.
- Manufacturer of interlocking polyurethane blocks used to form reinforced concrete wall systems suitable for residential and commercial construction.
- Anchor Block Company
- Manufactures masonry products, including concrete blocks, architectural veneers, retaining walls, and paving.
- Block Joist System
- Concrete blocks placed side-by-side between open-web steel joists for floors and roofs.
- Kirchner Block & Brick
- Manufacturer and distributor of masonry and landscape products including concrete block, clay brick, and more.
- Nitterhouse Concrete Products, Inc.
- Manufactures architectural and structural precast products.
- Oldcastle
- Fabricator of architectural glass, masonry and ornamental concrete products, aggregates, and precast enclosures. Also distributes roofing and siding materials.
- Oneonta Block Company
- Manufacturing concrete block, pavers, septic systems, and retaining wall systems. Dealers for a wide variety of building products.
- Schuster's Building Products, Inc.
- Manufactures standard and custom block and brick for the construction and engineering industries of the Midwest.
- Terraforce
- Manufactures intelocking blocks for retaining walls, erosion control, landscape gardening, and site construction.
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