In 1924, New Enterprise Stone & Lime Co., Inc. began as a commitment between J. S. Detwiler and his son, Paul I. Detwiler. Over the next two decades, J. S. and Paul acquired several other quarries in addition to blacktop and ready mix concrete plants. In 1949, J. S. included his other sons, Emmert, Dale, and Galen, in the company’s operations. After the company incorporated in 1950, the four brothers expanded and diversified NES&L Co., Inc., adding precast/prestressed concrete plants, concrete pipe plants, and more quarries. During the 1970’s, NES&L Co., Inc. acquired Martin Limestone, Inc. in Blue Ball, Pennsylvania, and Valley Quarries, Inc. in Chambersburg, Pennsylvania. In 2000, the company added Buffalo Crushed Stone, Inc. in Buffalo, New York, to its list of subsidiaries. In 2002, the company acquired Lancaster Stone. Stabler Companies Inc. and certain of its subsidiaries were added in 2007, expanding their services throughout the United States. The commitment that began between father and son continues today in this family-owned corporation guided by fourth- and fifth-generation Detwilers. That commitment comes from company personnel as well, since many of them are third- and fourth-generation employees. The Pennsylvania Department of Community and Economic Development named NES&L Co., Inc. one of the 50 best places to work among companies with 250 or more employees. From one quarry to a myriad of production facilities, quarries, and contracting services, NES&L Co., Inc. continues to strive to be a leader as a building materials supplier and highway contractor.

Pushing Boundaries, Paving the Way.... In 1952, Glenn O. Hawbaker and his wife Thelma founded a small excavation company with the goal to build, serve, and advance local communities. Over six decades later, GOH continues to serve customers with an array of services including asphalt paving, road construction, gas well service and construction as well as engineering design services. To date, Glenn O. Hawbaker operates 24 quarries and 8 asphalt production facilities across Pennsylvania, southern New York, and eastern Ohio.

Grannas Bros. Stone and Asphalt is a highway construction, asphalt paving, blacktop, crushed limestone and concrete supplier in Central Pennsylvania. Located in Hollidaysburg, Pennsylvania near Altoona, Blair County.

Guyer Brothers Inc is a construction company based out of 18329 N 825th St, Annapolis, Illinois, United States.

QUAKER SALES CORP is a construction company based out of 83 COOPER AVE, JOHNSTOWN, Pennsylvania, United States.

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Charles J. Merlo, Inc. is a Multi-Discipline Heavy Construction company based out of 234 Merlo Road, Mineral Point, Pennsylvania, United States.

PennTerra Engineering is an employee-owned company that has been shaping our community since 1976. Our full-service civil engineering firm of over 25 people includes professional engineers, surveyors and landscape architects. We pride ourselves on offering innovative solutions to our clients’ needs, completed in a timely manner, within budget, and without sacrificing quality has been our firm’s trademark. We use only the best and most progressive equipment and we keep abreast of the latest developments in our profession. There is no substitute for experience and the PennTerra staff has the experience to anticipate the proper course of action that is required to realistically obtain the established goals of our clients. We look forward to working with you!

For U.S. Municipal, "serving those who serve the public"​ has meant offering innovative, value-added, quality products, equipment and services to municipalities and contractors in the Mid-Atlantic region for over 50 years. Since 1967, our company has grown and evolved to meet your changing needs. Our mission is to provide you with superior customer service with our knowledgeable and experienced sales professionals. We appreciate your patronage and look forward to serving you in the years to come!

EVERHART & HOOVER POWER LINE CONSTRUCTION INC is a construction company based out of P O BOX 416, HUSTONTOWN, Pennsylvania, United States.

Greenland Construction has been a Chief Agri and Buildings dealer for over 35 years.

Cottles Asphalt Maintenance is a construction company based out of 13136 Lincoln Hwy, Everett, PA, United States.