Because of our Cost Awareness

We understand that we need to be efficient in today’s marketplace while continuing to keep costs low and providing consistent, high quality work.

We understand that we need to be efficient in today’s marketplace while continuing to keep costs low and providing consistent, high quality work.

We will not “buy a job” and “make it up in change orders”.  We are honest in our proposal and we are clear with our expectations and outcomes.

We recognize that each client is unique and that some clients prefer more project controls than others.  We care about the cost of project management and we will not provide more services than are required to complete a task.


“Sigma is very responsive and attentive to our site’s request. The on-site personnel are always professional and productive. The appropriate level of oversight and management, based on project size, results in a competitive composite rate for engineering services.”

– Engineering Manager- 5+ Years Devoted Customer


Ammonia Tank

Preliminary and detailed multi discipline engineering and design for a large ammonia storage tank maintenance Project Summary

Provided preliminary and detailed multi discipline engineering and design for a large ammonia storage tank maintenance shut down and replacement of a stair tower and flare system. Project also included process assessment and revamp of an aqua ammonia production facility and rerate of piping and vessels in the area. A new loading building was installed. A cooling tower was replaced.

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