Manco Structures Ltd

Heldenfels Enterprises provides pre-cast and pre-stressed concrete structures for highway and bridge construction. The company has two manufacturing plants in Texas, one in Corpus Christi and one in San Marcos, which produce construction materials, such as box beams, deck panels, double tees, I-beams, pre-cast pile caps, square and sheet piling, U-beams, column covers, pipe racks, spandrel panels, stair units, wall panels, seating risers, vomitory walls and rectangular beams. Heldenfels Enterprises maintains the Heldenfels presence in traditional construction markets highway, marine and industrial while it expands into new markets, such as athletic stadiums. The company s projects have included American Bank Center, Reliant Stadium, Minute Maid Field, SBC Center, the JFK Intercoastal Waterway Bridge, the Redfish Bay Relief Bridge, Indian Point Park Pier, Lexington Museum Approach and the Greenway Parking Garage. Heldenfels Enterprises is based in San Marcos, Texas.

North American Precast Company, also known as NAPCO, is one of the leading precast firms in the United States. Founded in 1994, the company designs, manufactures and installs precast and prestressed concrete products. It serves commercial, industrial, institutional and residential clients. North American Precast Company s product line includes columns, beams, spandrels, stairs and stadium risers. The company also offers ramp, insulated, vista and lite walls. In addition, it provides exterior columns and walls with architectural finishes. North American Precast Company has completed several projects, such as UT Royal Memorial Stadium, UT Women's Softball Facility, Katy Multipurpose Arena and HEB Grand Parkway.

Oldcastle Infrastructure future-proofs North America's infrastructure and transforms communities by protecting water, enhancing communications, transporting energy, and strengthening structures. Our clear vision, powerful collaboration, and fierce drive ensure the vitality and sustainability of what is most important to us-a better planet.