Environmental Source Samplers, Inc.

Environmental Source Samplers, Inc.

Environmental Source Samplers, Inc. (ESS) has a long and proven track record. We have been providing air quality related services since 1979. Headquartered in Wilmington, North Carolina, ESS has provided stack testing services in most of the fifty states and internationally. ESS serves clients in many industries including: Aluminum, Asphalt, Automobile, Carbon, Chemical, Cement, Food and Beverage, Fiberglass Insulation, Furniture, Glass, Gypsum, Manufacturing, Medical and Municipal Waste Incineration, Power Generation, Petroleum,Pulp and Paper, Surface Coating and Printing, Petroleum, Pharmaceuticals, Steel and Utilities.

Company details

436 Raleigh Street , Wilmington , North Carolina 28412 USA
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Business Type:
Service provider
Industry Type:
Air Monitoring and Testing
Market Focus:
Globally (various continents)
Year Founded:

Environmental Consulting Firm
Environmental Source Samplers, Inc. (ESS) provides a variety of air quality testing and environmental consulting services. ESS has extensive experience with air quality regulations and emission source test procedures throughout North America and abroad. Since its inception, ESS has conducted thousands of air emission tests and provided countless hours of environmental engineering services over a broad range of industries in need of air testing.

ESS is committed to providing our clients with superior stack testing and air emission testing services through strict adherence to proven EPA, CARB, ASTM, OSHA, and NIOSH test methods. ESS assists with formulating test protocols, often negotiating with the EPA to achieve more reasonable and/or realistic testing requirements.

ESS is dedicated to the success and satisfaction of our clients. We feel that communication is key to a successful project. Prior to the start of any project, our environmental consulting staff discusses the project in detail with the client. Every effort is made to ensure our clients understand and are comfortable with the scope of work, methodology, and testing types being utilized. ESS also takes the time to fully understand the reasoning behind the project. We make sure to communicate with our clients to avoid problems and unexpected delays later on. The end result is a satisfied client and a completed project with accurate and consistent results.

ESS realizes how essential customer satisfaction is to our continued success. As a small environmental consulting company, we are streamlined and better able to meet our client’s ultimate goals of performance and price. ESS is a leader in the air testing industry due to our extensive experience, knowledge, competitive pricing, scope of services and technical capabilities.

To be a high quality provider of emissions sampling and stack-testing services to our clients nationally and internationally, with a focused commitment on integrity, excellence, and customer service.

Through continued investment in facilities, equipment, continuing education and personnel, ESS provides a broad range of services to meet our clients’ varying needs.


  • Rapid response and mobilization
  • High quality customer service
  • Rigorous attention to detail
  • Rapid turn-around-times on reports and analytical data
  • Uncompromising integrity and confidentiality
  • Flexibility
  • Employee empowerment and accountability

Environmental Source Samplers is one of the most experienced air emission testing companies in the United States.  We have been providing high quality air emission testing services since 1979 with a wealth of source testing experience, industry knowledge, and state-of-the-art equipment.

ESS has an excellent reputation with regulatory agencies. We are familiar with the relevant regulations that are applicable to air emission testing and are able to provide valuable guidance to help ensure your permit compliance.

Our team of professionals has over 50 years of combined experience in executing complex air emission testing programs.

Environmental Source Samplers, Inc. (ESS) has been providing air emissions testing, stack testing, source testing, and environmental air services since 1979. Our seasoned staff of professionals has over 50 combined years of accumulated industry knowledge and experience in air testing emissions. We will help you design and execute an accurate emissions testing program with guaranteed valid test results.

Headquartered in Wilmington, North Carolina, ESS is the air quality expert. We regularly provide stack testing for air quality compliance and air quality consulting services across the United States and internationally. Our main focus is to consistently meet and exceed our clients’ expectations, by providing accurate, reliable emissions tests fast. By choosing ESS you can be sure you are selecting one of the most experienced air quality testing and environmental consulting firms in the nation.

ESS prides itself in providing cost-effective air emissions tests without sacrificing quality. The ESS environmental engineering staff is dedicated to handling air quality jobs of all sizes, with varying degrees of complexities. Whether your needs include; source testing, FTIR spectroscopy, industrial hygiene monitoring, CEMS testing, air dispersion modeling, or mercury monitoring, we can help.


Our Accreditations

  • NELAC Accredited On-Site Laboratory
  • QSTI Certified Project Managers
  • ASTM Quality Assurance Program
  • Excellent Safety Program- resulting in no reportable incidents since 1979