RK&K

Established in 1962 as a sanitary engineering firm formed under the name Herbert Associates, Herbert, Rowland & Grubic has been serving the needs of Pennsylvanians and citizens of the surrounding states for more than 40 years. The company has developed into a full-service firm offering experience in the areas of transportation, environmental site assessments, civil and water resources, site design, surveying and geographic information systems, in addition to its initial specialty in water and wastewater engineering. This range of capabilities further enhances the company s ability to serve customers by enabling it to handle every project need in-house from the initial project concept to project delivery. The company serves clients in the cities of Harrisburg, Lancaster, State College, Gettysburg, Pittsburgh, Stroudsburg, Lewisburg, Hermitage and Dunmore, Pa.

A privately owned, mid-sized corporation, Skelly and Loy, Inc., provides a myriad of professional engineering and environmental services to various industries and businesses, government, and the private sector throughout the United States and abroad. At Skelly and Loy, Inc., you will find extraordinary people and you can expect extraordinary results. Call us today for more information.

Guth Laboratories has developed precision, electronic simulators to calibrate and standardize preliminary and evidential breath analyzers used by law enforcement, the Department of Transportation, the National Review Board and educational institutions. The company manufactures the only simulator certified for use in hospitals and clinics. Guth also offers alcohol breath test accessories, supplies and service, including fuel cell sensors, sanitary mouthpieces and the smallest hand-carried preliminary breath tester. Guth Laboratories is located in Harrisburg, Pa.