69 EMPRESAS MASTER / TOA BAJA, PUERTO RICO
Started in 1987, Master Products segment distributes and manufactures packaged concrete and related products under the Quikrete brand name. www.mastergroup-pr.com
70 CLAYTON COMPANIES / JACKSON, N.J.
Divisions include Clayton Concrete, Clayton Block, and Clayton Sand, in addition to 14 retail locations in New Jersey. The company started in the early 1950s. www.claytonco.comUP TO $50 MILLION
71 TEXAS CONCRETE CO. / VICTORIA, TEXAS
Prestressed producer serves metropolitan Houston from four plants. Also worked on Dallas Area Rapid Transit infrastructure project in 2009. www.texasconcrete.com
72 EUCON CORP. / SPOKANE, WASH.
Owns Spokane Rock Products and operates as Atlas Sand & Rock in Idaho. Other businesses include DeAtley Crushing and M.A. DeAtley Construction. www.spokanerock.com
73 MACLEOD CONSTRUCTION / DENVER, N.C.
Began as a contract mowing and landscaping company; now involved in concrete pumping, flatwork, footings, poured walls, and curbs and gutters. www.macinc1.com
74 GRAND JUNCTION CONCRETE PIPE / GRAND JUNCTION, COLO.
Manufactures precast structures, concrete pipe, ready-mix, and supplies sand, gravel, and fill dirt. Serves western Colorado and eastern Utah. www.gjpipe.com
75 SEQUATCHIE CONCRETE SERVICE INC. / SOUTH PITTSBURG, TENN.
Ready-mix and block producer says 20% of work was infrastructure in 2009; has rehired some laid off drivers in 2010. www.seqconcrete.com
76 BMC ENTERPRISES INC. / ST. LOUIS
I-64 was this ready-mix producer's big infrastructure project in 2009; such work accounted for 25% of sales last year. Expects to start rehiring in 2011. www.breckenridgematerial.com
77 CENTRAL CONCRETE SUPERMIX INC. / MIAMI
Eight locations, 10 plants, 130 trucks, and 225 employees serve South Florida. Also has a concrete masonry block plant. www.supermix.com
78 OZINGA BROTHERS / CHICAGO
Company's aviation division has leased its nine-passenger Cessna turboprop aircraft to Blatti Aviation for flights to 5000 airports in the U.S. www.ozinga.com