We engineer reliability for the industries that sustain the world.
From the chemical processes that make everyday products to the refineries that power cities, we fabricate high-performance pressure vessels and heat exchangers that keep the world’s refineries, chemical plants, and industrial systems online.
Complex Builds. Proven Reliability.
We take on the projects others can’t handle. From high-alloy pressure vessels to precision heat exchangers, every Alliance build reflects decades of metallurgical expertise, disciplined project control, and code-deep quality assurance.
Pressure Vessels & Columns
Large, Division 2, alloy, and clad builds engineered for extreme pressures and corrosive environments
Shell-and-Tube & Helixchanger® Exchangers
Designed for fewer cleanings, lower pressure drop, and longer runtime between outages
Heat Exchanger Services
Rapid inspection, retube, and replacement bundles with a 72-hour scoped response
Serving the Great Lakes
and Beyond
Rooted in the Great Lakes, proudly Canadian, ready for the world.
Our work begins in one of North America’s most vital industrial corridors — the Great Lakes and Sarnia Chemical Valley — and extends to the refineries and processing facilities that keep economies moving across the U.S. Gulf Coast, Alberta, and Appalachia.
Industries Served
We work across the industries that keep the world moving — from refineries that power cities to chemical plants that create the products of daily life. Whether it’s generating energy, refining materials, or advancing industrial production, our vessels and heat exchangers operate at the center of it all — delivering reliability where safety, efficiency, and progress intersect.
Results That Prove It
Reliability isn’t claimed — it’s earned.
Our performance is measured in uptime, start-ups, and trust. Every project tells a story of complex requirements delivered cleanly and on schedule — proof that reliability can be engineered.
Fewer Cleanings. Longer Runs. – Helixchanger® retrofit reduced fouling frequency by 30%.
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72-Hour Response, Zero Delays. – Rapid replacement bundle scoped, fabricated, and installed under 3 days.
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On-Time. Every Time. – 15-year record of meeting promised start-up dates for major refinery clients.
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The People Who Make It Possible
Meet our team. See how we work.
