Creating the Industry Standard


As third generation owners of A+ Corporation, we have a profound respect for the value and spirit of improvement passed down to us by my grandfather, Don Mayeaux. It is in this spirit of innovation that we embrace the style of the new millennia of technical excellence, precise communication, and putting people first. As innovators, we are constantly developing and testing new technologies for the industry and to solve customer problems.



A+ Corporation is a
company located in
Gonzales, Louisiana
just outside of
Baton Rouge.

2019 marks our

30th anniversary. As we look back to the year it all started, we’re excited to launch another phase of innovation and eager to realize future successes of A+ Corporation. We have an almost constant flow of new technologies being developed that will continue to drive the science of sample conditioning. Although our methodologies may differ from those of previous generations, our goals are the same—A+ will always be committed to solving customer issues with the same passion that fueled our humble start 30 years ago. We are excited to take this journey and we invite you to join us.


A+ pioneered the use of membranes for removing liquids to protect analyzers in both gas and liquid streams with their Genie Membrane Separators.

Additionally, the company pioneered the use of membranes on sample probes, eliminating liquids at pipeline conditions to ensure a representative sample as well as preventing liquids from contaminating the sample system. With over 45 patents and counting, A+ continues to create new and exciting technologies which will continue to define and redefine the way fluids are sampled.


Better solutions come from a better understanding of the problems customers face. By understanding and identifying these core issues, we ensure the solutions we provide are solving the root problem and not simply fixing symptoms of the core problem. Also, if we can fix your sampling issue without selling anything, we’re glad to do it.







Message from our CEO

making the


Passionate about all we do.

We are just as passionate today about sampling science as we were over 30 years ago. Dedication drives us to offer the best products and sampling solutions in the market today.


Leading sampling innovation with simplicity.

We are problem solvers at heart. From improving our internal processes, minimizing waste, and improving build efficacy to the way we design our products, we think big and operate without boundaries.


Helpers first and foremost.

From our exceptional customer service to our team approach to problem solving, we work together to solve your problems even if it means recommending a product that’s not ours.


Integrity is the best policy.   

You can depend on us to provide solutions that can be justified, explained and implemented. If we don’t feel right about it, we don’t do it. Period.


Always growing, always adapting.   

Continuous improvement is a driving characteristic that we take very seriously. We are constantly leaning in to our processes, people, and products to make sure they are designed, built, and marketed in a way that makes the most sense in today’s economy.


Our Founder

Don P. Mayeaux
(1939 - 2012)

Starting in the fall of 1988, in a spare room in his house, Don Mayeaux began creating product concepts that would forever change the way natural gas is sampled. Building on a concept discovered while designing an improved electrochemical moisture analyzer, Don invented a simple, phase-separating filter that he named “Genie.” The Genie® brand has gone on to become a master brand, the name by which most other membrane separators in the market are also referred to today.

While there have been many improvements and variations made in the last 25 years, the basic operation of the Genie Membrane Separator™ has remained unchanged. Don had a passion for discovering how things worked, and was not satisfied to accept that things simply did. He desired to know the exact mechanics of everyday objects down to the minute details.

This passion extended into his work, and solving industry problems was more important than making a sale. If the solution included an A+ product, that was a bonus. In some cases, a new product design was the result, many of which are still flourishing today.

Don’s solutions were simple, novel, and based on sound scientific principles. Don has instilled in A+ the culture of doing things correctly. Abiding by scientific principles and practices are not just words, they are concepts that we live by. Analytically Correct™ is a term that forms the foundation of our daily work and is our litmus test by which we judge the methods and feasibility of our products. Don taught that sample conditioning is not an art, it is a science, and we continue to follow this every day.