About United Siegen Philippines Corp.
Engineering Solutions Built on Integrity.
Building from the Inside Out.
United Siegen Philippines Corp. is an industrial contractor and engineering solutions provider specializing in the design, fabrication, installation, and commissioning of industrial storage tanks, process equipment, and steel structures throughout the Philippines.
Every project begins with engineering, because long-term reliability starts long before fabrication.
People Performance
with Purpose
Who We Are
We do not strive for excellence and integrity; in Christ, it is simply our identity. That conviction shapes how we engineer, fabricate, and serve every client we work with.
For industrial facilities, every storage system affects safety, productivity, and operational continuity.
Siegen helps companies execute these critical projects through integrated engineering, fabrication, field installation, and commissioning—all managed under one trusted partner.
With over 30 years of combined industry experience, we serve manufacturing plants, water treatment facilities, food and beverage companies, chemical processors, energy providers, infrastructure projects, and industrial contractors nationwide.
The most important asset of Siegen is not equipment, machinery, technology, or intellectual property. It is our people. We believe there is no true commitment to our clients’ requirements if we do not first have a genuine concern for the welfare of the very people who provide the services our company offers.
We hold to one principle: we treat our employees the same way we treat our most valued clients. There is no dichotomy in how we serve. We serve both our people and our clients with the same care, respect, and integrity.
Explore Our Work
Our Projects Highlights
Take a closer look at our diverse range of completed storage projects. Each project reflects our dedication to precision, quality, and innovation in delivering storage solutions that exceed industry standards.
