Protecting People and Property, One Structure at a Time
At Openso Engineering, we are a specialized engineering services and fabrication technology company that serves the Petroleum Refining, Petrochemical, Chemical, and related industries. With our headquarters located in Edwardsville, Illinois, we are strategically placed to provide expertise to our clients across the United States.
Our Competitive Advantage
Our uniqueness lies in combining the latest technology available with many years of practical experience analyzing, designing, and fabricating pressure vessels, heat exchangers, and other process equipment. This synergy allows us to react to our customers' needs quickly, pinpoint the root cause of problems rapidly, and ultimately save our clients' time and costs.
Our History
Founded in 2001 by four principal employees of Nooter Fabricating, with over 120 total years of experience, OPENSO has a distinct market advantage. Our team's comprehensive expertise spans from fabrication to engineering, ensuring that we can develop innovative solutions to complex design issues and failures. Our President, Khalil Rabiei, was previously the Chief Engineer for Nooter Fabricators Inc. (NFI) and Engineering Manager for Nooter Consulting Services (NCS).
Our Management Team
Our management team consists of experienced professionals with a deep understanding of the industry. Khalil Rabiei, our Principal Engineer, has extensive expertise in structural engineering, with a Bachelor of Science in Engineering Mechanics and Materials from Southern Illinois University at Carbondale and a Master's degree in Structural Engineering from the same institution. He is a registered Professional Engineer in multiple states and is also involved with various professional societies, such as the American Society of Mechanical Engineers, American Society of Civil Engineers, and American Society of Professional Engineers.
Our Services
At Openso Engineering, we provide a wide range of services, including:
- Finite Element Analysis (FEA)
- Computational Fluid Dynamics (CFD)
- Fitness for Service (FFS)
- Fluid Structure Interaction (FSI)
- Equipment Reliability
- Turnaround Support
- Front End Engineering Design (FEED)
- Pipe Stress Analysis and Design
- Fabrication Technology
- Professional Project Management
- Procurement Support
- Forensic Expert Witness
Our goal is to provide our clients with optimum engineering solutions, ensuring their success in the petroleum refining, petrochemical, and chemical industries. By combining our expertise in engineering analysis, design, and fabrication, we help our clients minimize downtime, eliminate unnecessary equipment purchases, and operate more safely.
Overall Impression
Openso Engineering has received largely positive reviews from satisfied clients. The majority of reviewers have praised the company for delivering high-quality work, meeting deadlines, and providing a great learning experience.
Quality of Work
Reviewers have consistently commented on the high-quality work delivered by Openso Engineering. Caroline Klasey and Viti Khatri specifically praised the company's ability to deliver high-quality work and meet deadlines. Arej Patel also mentioned that they enjoyed their time at Openso and gained great experience.
Workplace Culture
While the majority of reviews have been positive, Mehrad Ansari's review highlights some concerns about the workplace culture. They mentioned that they observed disrespectful interactions within the workplace and criticized the company's poor decision-making and lack of strategic planning.

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