DoD ELAP accredited laboratory testing for federal contracts

Our federal clients have high expectations for performance and little room for error. As a small business with nearly 40 years of experience, you can trust Sterling Labs to get the job done and keep your costs down.

Our Federal Clients

Business classifications 

  • NAICS Code: 541380 Testing Laboratories
  • DUNS: 11-538-3556
  • CAGE: 3BR19
  • DoD ELAP Accredited

Reports and Electronic Data Deliverables

  • SEDD Stage 2A
  • EQuIS (customized for agency/prime)
  • Customized Excel
  • Customized Access


Receive high-quality results you can trust from the first DoD accredited lab in Illinois certified for Method 1633 PFAS

DoD certified for 40 PFAS compounds

The field of PFAS science is constantly expanding, influencing site analysis, environmental movement and tracking, analytical procedures, harmfulness, regulation, and treatment methods. Sterling Labs stays ahead of the curve by keeping up-to-date with the latest testing methods. 

Comprehensive environmental services

At Sterling Labs, we are committed to providing the latest and most accurate testing methods to fulfill all your environmental testing needs.

  • Environmental laboratory testing

  • PFAS and other specialty services

  • Industrial hygiene

Environmental scientist at work

Environmental laboratory testing

Ensure the seamless execution of your environmental projects with our trusted testing and analyses. Identify potential hazards and safe conditions with our specialized testing of water, air, soil, waste, and other environmental services. 

specialty services (1)

PFAS and other specialty services

Establish smooth project operations with our specialized testing services. From PFAS to TO-15 analysis, we offer a diverse range of testing services that are constantly updated to keep up with the latest industry standards.

special hygiene

Industrial hygiene

Our industrial hygiene testing services help you evaluate exposure levels to potential hazards at home, in school or in the workplace.

The most timely and convenient DoD certified environmental testing lab

Let’s work toward a world of environmental responsibility

Find out how we have helped businesses like yours achieve their goals.

  • I've been in the business for 10 years now, and that whole time they're the only lab we've worked with and we haven't had any reason to search elsewhere. They've kept us happy, and I think we look at Sterling Labs as being a vital part of our process.

  • I live in the city of Chicago (...) and they are at a physical location where sometimes it is convenient for me being 15 minutes away from the lab to go there and pick up containers and drop something off. So the location is helpful.

  • Among their strengths: data reliability, turnaround times, and pickups. Project managers are responsive and pretty helpful with their customer service. They are flexible –if we send them six samples, and then call later and ask them to prioritize some over others, they will do that.

  • Communication is really good. I can call or email and get an answer within minutes. 

  • They are centrally located within Chicagoland, and are easy to access (...) They also have been known to help us outside of regular hours, when other companies would not. We have been doing business with them for a very long time. Having consistent staff is important. They have had the same staff for a very long time and that is very meaningful. 

  • They give more personalized attention for smaller companies such as ourselves so we don’t get lost.  And we don't feel like a nuisance, if you will, compared to the bigger guys and their bigger accounts and the volumes they are used to receiving from customers. So that is a big positive as far as I am concerned. We are able to get a hold of someone on a routine basis and get the answers right away. 

  • The location is convenient, and the team, extremely responsive. Justin and Craig are workaholics and they are always going! 

  • The quality of Sterling Labs is outstanding. There are really no complaints that we've had on our end, or any reason to question the work that they do for us.

  • They do a great job. We do a lot of PCBs in oils and they run a modification of the method that most labs don't that provides a much better sensitivity for that analysis and so that is something that stands  out. They have gone beyond what the norm is to provide a more sensitive analysis. They have 24-7 service which most labs do not anymore. 

  • I think their customer service is wonderful, top notch. I think their knowledge and expertise is great. There are a lot of experts there that we rely on –they help us. (...) I really like working with them.