TPD is a consulting engineering firm specializing in transportation engineering and related environmental and construction services. Since 1989, TPD has recognized the direct link between developing a staff of top-notch professionals and providing superior quality and service to our clients and ultimately the public.

Potts Welding was founded by Walter Potts in 1929 as a boiler repair business. It was incorporated in 1965 in the state of Delaware and operated essentially unchanged into the 1970s when Potts Welding capitalized on the opportunity to diversify by strategic acquisitions and internal growth. Today the company employs approximately 200 full-time employees; constituting a world class team of professionals including welders, boiler-makers, engineers, draftsmen, machinists, mechanics, technical and non-technical specialists, sales, procurement, and administrative personnel. Potts specializes in the fabrication and repair of boilers and related component parts, heating and cooling equipment, heat exchangers, condensers, and the sale of boiler and heat exchanger tubing. The manufacturing of pressure parts for the boiler industry is accomplished at Potts' main production facility located in Newark, Delaware, in a state-of-the-art manufacturing plant. The facility is situated on 16.5 acres housing 180,000 square feet of manufacturing and ancillary space. Potts extensive parts and tubing inventory is stocked to meet customers' daily and emergency requirements and has shipped boiler parts to virtually every continent. Potts still operates a small field service group out of its main site in Newark, Delaware. Providing piping, overhaul and repair services to several loyal and original customers.

JBC Associates, Inc. (JBC) is a professional construction management firm which adds value to projects by effectively applying our services of project management and oversight, construction management including CPM scheduling, construction inspection, contract administration and dispute resolution to government, institutional and private sector projects. Working with owners, designers and contractors alike, we focus on ensuring project success by providing attention to key project details – quality, schedule and cost. JBC Associates, Inc. is a certified Woman Business Enterprise (WBE) with many local, state and federal agencies. JBC is one of Pennsylvania’s largest and most respected women-owned professional construction management firms. We have experienced continued growth since incorporation and currently provide professional services on over $1.5 billion annually in construction. As one of Philadelphia’s largest women owned businesses, we have been ranked locally as one of the Top 100 Fastest Growing Privately Held Companies in the Philadelphia area and nationally among Engineering News Record’s Top 100 Construction Management for Fee firms in the country. Looking to join JBC? Visit us at http://jbcassociates.com/careers/ for current opportunities.

C.M. High Inc. is a construction company based out of 341 Kings Street, Myerstown, Pennsylvania, United States.

GUIDEMARK, INC. is a construction company based out of 515 HAGEY ROAD, SOUDERTON, Pennsylvania, United States.

Domus is a Philadelphia-area general contractor established in 1976 on the foundation of impeccable business ethics and a willingness to solve problems for customers. That foundation has helped us grow to become a $100 million construction firm with expertise in managing housing, restaurants, retail/commercial and academic construction projects.

PROTECS is a leading, innovative full-service project and construction management company focused on serving the hi-tech regulated market sectors. For more than 18 years, PROTECS has provided its clients a broad range of leveraged services in a collaborative construction management and design/build approach by collaborating with best-in-class architecture/engineering firms from project inception to occupancy. Through PROTECS’ patented Target Costing® delivery methodology, the company acts as a single point of contact and accountability for master planning, site selection, design, construction, commissioning and validation. As part of this delivery approach, PROTECS takes on the risk to guarantee performance, conformance, compliance and cost to ensure all its clients’ strategic objectives and goals are met.

SCHEUERMANN EXCAVATING, INC. is a construction company based out of 5285 WEST COPLAY RD, WHITEHALL, Pennsylvania, United States.

Delaware Valley Paving is a full-service paving contracting company, based in Phoenixville, PA. since 1990. What distinguishes Delaware Valley Paving and its employees is the company’s unrelenting attention to detail and steadfast commitment to customer satisfaction. Simply put, Delaware Valley Paving is an operations-oriented company and focuses on getting the job done as efficiently as possible. DVP can be found working on a myriad of projects involving large scale commercial jobs for property management, development, industrial, and large-scale national retail chains throughout Pennsylvania, Delaware, Maryland, New Jersey, New York, Virginia, Ohio, Massachusetts and Connecticut. As important as capital projects are to Delaware Valley Paving our company also performs smaller asphalt overlay, concrete replacement, infrared pothole repairs, and maintenance work, such as signage and bollard replacement. Delaware Valley Paving gets our jobs done faster, with more production and provide a better product than others. We gain trust with customers by showing them how well we operate and how we work as a team.

Building structures. Building trust.

Muschlitz Excavating, Inc. (MEI) is a recognized leader in the commercial, municipal, industrial and residential site development field. Muschlitz Excavating was founded in 1990 by the Muschlitz family; Ron Muschlitz, President and his two sons, Jack, Vice President, and David,Secretary/Treasurer. The Muschlitz’s started the business by digging basements, grading lawns and installing septic systems. In 1993 Muschlitz landed its first large commercial project, building athletic fields for Lehigh County. Since then, the projects have gotten larger and more complex, but our philosophy stays the same: “Treat your customers right, and the rest will take care of itself.” The Muschlitz team has spent over 20 years working with their clients to build a solid reputation of honesty, integrity and outstanding performance. MEI specializes in complete site work packages including site development, land clearing, mass earthwork and grading, water and sewer installation, storm water systems, rock crushing,recycling and material processing, asphalt paving, surveying, concrete curbing and flatwork,foundation excavation, and landscaping. Whether large or small, MEI will assist you in the success of your project, from value engineering in pre-bidding stages, right up to the successful completion of your project. Our professional staff is prepared to assist with all your site development needs. Employing a workforce of over 150 skilled professionals, combined with our fleet of nearly 200 pieces of late-model, state-of-the-art equipment, we have the resources at our fingertips to complete your project in a safe, professional, organized manner and according to your schedule. We are proud to say that nearly 70 percent of our business is from repeat customers.

Established in 1976, we at Aaron Enterprises, Inc. are well known for our expertise in Trenchless Technology. As a specialty contractor/subcontractor practicing the various disciplines of trenchless technology, we have established a reputation for getting the job done, and getting it done right! We provide a variety of different services including Auger Boring, Horizontal Directional Drilling, Pipe Jacking, Tunneling, Pipe Ramming, Micro Tunneling, Soil Stabilization, Grouting, Vertical Shafts, Pipe Rehab, Slip Lining and even Engineering Services. Most commonly (but not limited too), we find ourselves working in the following markets: Transportation, Electric, Heavy Civil Construction, Oil & Gas, Railway, Storm Water, Communication, Commercial & Building, and Sewer & Water. With over 45 years’ experience, Aaron Enterprises, Inc. has been an innovator in building trenchless projects, facing unique obstacles and challenges along the way. This is all a part of our "Whatever It Takes" credo. The professionalism and skill of our staff has earned us the respect of hundreds of public and private entities- from government, municipal, and local authorities to the engineering firms who look to us for our expertise and recommendations. Our complete mechanical, repair and fabrication shop facility also allows our firm to design and build specialty drills and systems for "nonstandard" situations. With licensed professional engineers on staff with years of practical knowledge, Aaron Enterprises, Inc. also offers assistance in project design. We are committed to excellence through in-house development as well as staying at the forefront of the industry's latest technology available. That combined with experience, safety and dedication is what makes Aaron Enterprises, Inc. your choice for your next trenchless project.