Process Solutions for the Energy Sector

From Production to Midstream and Refining to Petrochemical, we provide total engineering, procurement and construction services. Let us put our years of experience to work for you.

For over 20 years, we have been helping clients just like you overcome operational challenges. 

Let's Talk About Your Project

We understand the unique challenges facing our Oil & Gas clients.

From Sulfur Recovery to Amine Sweetening processes, we have the experience to design, construct and deliver custom solutions for you.


Gas and Petrochemical processing is a delicate operation where optimizing asset operation is essential. Fluctuations in the quality and purity of natural gas fuels will impact asset operation. At Principal Technology we develop technologies to help you leverage your assets for increased productivity.


Remaining compliant with the ever changing environmental emissions regulations is a constant challenge for our clients in the chemical processing and oil and gas industries. Supporting you in understanding the regulations and implementing effective control systems is a service we’re proud to offer.

Refining and Petrochemical Processes

From Sulfur Recovery to amine sweetening processes, we have the experience to design, construct and deliver custom solutions for you. 

Design, Procurement and Fabrication

From small scale sour gas treatment units to large scale sulfur recovery systems, we have the capability to design and fabricate in-house to meet your specific needs.

Process Consulting Services

Whether a brand new processing plant or seeking efficiency improvements in existing processes, you can rely on us to offer technical expertise to realize your goals.

Operability and Maintainability

With experience, we have perfected our design and installation processes to ensure the solutions we offer are simple to operate and easy to maintain. Our design approach minimizes repair and maintenance turnaround, reducing costly downtime and loss of production.

Let's Talk about Your Next Project