$101 MILLION TO $500 MILLION
19 DUNN CONSTRUCTION CO. / BIRMINGHAM, ALA.
Originally a railroad construction company, Dunn started Mississippi Materials Co. (MMC) in 1927, now the largest ready-mixed concrete supplier in Mississippi. MMC, and subsidiary Bayou Concrete, serve the Southeast U.S. www.dunnconstruction.com
20 ITALCEMENTI GROUP / NAZARETH, PA.
Transparent cement is a recent innovation of this company, which has 39 concrete plants in North America. The Italian Pavilion at the Shanghai Expo was built with this advanced construction material. www.italcementigroup.com
21 VOTORANTIM / BRIDGEVIEW, ILL.
A major player in Brazil, Votorantim has several North American plants. In Feb. 2010, it bought portions of Cimpor, Lafarge, and Cinveste. Its agribusiness is one of the largest producers of concentrated orange juice. www.votorantim.com
22 TITAN AMERICA / NORFOLK, VA.
This subsidiary of Greek-owned Titan Cement Co. is a leading cement and building materials producer in the Eastern U.S.; subsidiaries include Essex, Roanoke, Separation, and Tarmac. www.titanamerica.com
23 BORAL / ROSWELL, GA.
Headquartered in Australia, this multinational company has extensive operations in the U.S. and Asia. This year, Boral was ranked #61 on Corporate Knights magazine's Global 100 list of the most sustainable companies in the world. www.boral.com
24 IRVING MATERIALS INC. / GREENFIELD, IND.
Supplies ready-mix in Indiana, Kentucky, Tennessee, southwestern Ohio, southeastern Illinois, and northern Alabama. Subsidiaries include Specialties Company and E & B Paving. www.irvmat.com
25 IMPULSORA TLAXCALTECA / MEXICO CITY
Focused on Mexican infrastructure development, this producer is Mexico's leading manufacturer of precast concrete structures, construction and rehabilitation of railways, and concrete sleepers. www.itisa.com.mx
26 PAVESTONE / DALLAS
Since 1980, this company has manufactured segmental concrete products for various markets. The Pavestone Institute of Hardscape Technology offers a curriculum in hardscape business. www.pavestone.com
27 CARDI CORP. / WARWICK, R.I.
This highway construction company founded in 1900 provides concrete to Rhode Island and other parts of New England; also operates Hopkins Hill Sand & Stone in Rhode Island. Producer was awarded funds to refurbish the Sakonnet River bridge portion of Route 24. www.cardi.com
28 COUNTY MATERIALS / MARATHON, WIS.
A producer of circular and elliptical concrete pipes, along with precast concrete products, this company has more than 30 Midwest locations. www.countymaterials.com