Don’t take our word on it,

take our clients’ word!

It’s easy to tell you how great we are.

Here’s what other people think of our services:


I have had a working relationship with Doug Markle since 2003, he has been a teacher, a mentor and more than once a savior, coming to my aid when laboratory productivity was threatened.  In these instances, Doug minimized my downtime and increasing stress level by providing a solution to my problem and quickly.

The attribute I most value in Doug is his ability to listen, evaluate what I am really trying to communicate and show me the path to accomplish it.  This is a rare gift.

I could go on and on with additional words but perhaps fewer are more effective.  I have total faith in Doug to provide solid, no nonsense solutions to challenges.  Doug never ceases to impress me with the breadth of his knowledge on current technical issues and developments.”

– Marge H., EMSL Laboratories

Doug is an extremely insightful and intelligent individual, with significant depth of experience in a broad range of topics/disciplines. He can be counted on to produce innovative approaches to business problems and challenges. He is resourceful, dependable and above all, trustworthy. He can be counted on to give maximum effort in anything he believes in.”

– Norman F., Frolich Institute

“Doug Markle is a forward thinking, intelligent leader with just the right amount of drive to move your project from concept to reality.  It is people like Doug that help dismantle the myth that highly competent scientists cannot be great business leaders.  I have looked to Doug as a mentor, technical resource and sounding board since our professional paths crossed over ten years ago.  “

– Amy J., Advanced Research Company

“Doug an I worked on many projects together. Doug was instrumental in the implementation of OSHA’s PV2120 canister method for worker exposure monitoring. After 9/11 we employed the same technology at Aberdeen and the striker vehicle as well as at EPA NEIC as the responsible agency for chemical attacks in Washington DC. On top of all that Doug taught me the southern way of cooking ribs. A great chemist and a real person to work with.”

– Art H., AdaSci 

“Doug Markle is one of two technical persons that I have met that I trust. I can do many things myself, but when it comes to technical solutions, there is none I trust as much as Doug Markle. He’s the guy that when I am having a problem I can shoot an email, text, or call and he might not have the solution right then, but within a day he has always had an answer. He has helped speed up production, he has helped troubleshot, he is an all around great guy. He should always be your first call because he is your best call in my opinion. I will be watching his new company cheering him on and seeing if there is ANYTHING I can call him to get him to do for my company.

– Matt D., AES Environmental

“Doug has been an exceptional resource for my laboratory.  He was instrumental in aiding us during the development of our air department; educating us on the pros and cons of numerous supplies and guiding us through unknown territories.  Doug volunteered to be our speaker at a conference we held here at the lab for 50+ of our clients which included both engineering firms and industrial clients.  The focus of the conference was to educate our clients on sampling equipment and analysis of air methods while at the same time give them a chance to see the laboratory’s newest department and gain understanding of our capabilities.

Doug continues to be my “go to” for anything air! He continues to support us through networking with others and has once again proven to be key in our latest development of landfill gas methods. “

-Carmela T., Air Water and Soil Laboratories

“I have worked with Doug for over 10 years in the environmental industry.  I have always found Doug to be a professional who is very knowledgeable in the environmental field. He is extremely intelligent, and a creative problem solver and has been a pleasure to work with over the years.”

– Jerry A., ALS Laboratories

“I have had the opportunity to work with Doug on a variety of different environmental sampling and analysis projects over the past 16 years. He has broad and deep experience and expertise in analytical chemistry and instrumental analysis and is always looking for ways to help his customers succeed.”

– Ian M., Battelle

“Doug has a unique ability to identify the concern, effectively communicate a potential solution, and seamlessly implement the technology. To have the ability to understand some of the most complex issues our Laboratories have today and effectively communicate these scenarios that can be understood on multiple levels, is a special skill set that Doug Markle has truly refined.”

– Jake S., Timm Medical Technologies

“I have known Doug Markle professionally for 16 years, and always found him to be an advocate for the customer, ensuring that they always have the best experience, not only from the product, but also from himself, and any associate that might happen to deal with the customer. Doug was instrumental in helping develop a rigorous QC regime that helped fully vet our instrumentation and testing parameters to their fullest, thus ensuring the highest of quality and operational functionality in our product line. Doug is an upstanding individual, with a great professional demeanor and a sense of caring that is rarely seen in the business place. Doug has extensive knowledge of analytical and environmental chemistry, and its many and varied testing methodologies, and has provided solutions for industry, government and academia for over 25 years. Beyond that, Doug is a devoted husband and father, having given me sage advice from time to time in the raising of my own step children.”

– Dixon S., Greenwave Scientific