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Powered By Excellence
Your trusted partner in providing dedicated commercial-grade valves for safety-related applications in nuclear power plants. With a commitment to quality and reliability, we ensure that every component meets the highest industry standards.
ABOUT
Trusted Supplier
Founded in 1994 by professionals from the power plant and valve industries, Sigma Inc. emerged out of necessity to offer thorough, faster, and more cost-effective solutions to critical needs in the nuclear sector. We pride ourselves on our unwavering dedication to excellence. Our team of seasoned professionals brings decades of experience to every project, ensuring meticulous attention to detail and unwavering reliability.
SERVING THE POWER GENERATION INDUSTRY
Our Clients
Sigma Inc. is a major supplier of valves to the power generation industry. Our primary focus is dedicating commercial-grade items for nuclear safety-related service, as well as supplying valves from our extensive inventory centrally located in Charlestown, Indiana. We are proud to serve the nation's top utilities.
Precision in Every Component
Our dedication process includes detailed procedures encompassing technical evaluations, definition of critical characteristics, acceptance criteria, and comprehensive testing. By focusing on every detail, we ensure that each valve meets stringent safety and performance requirements.
Timely Solutions Without Compromise
Recognizing the urgency in the nuclear industry, Sigma Inc. offers a large stock of forged and cast valves ready for prompt delivery. Our streamlined processes and dedicated team ensure that clients receive high-quality components swiftly, maintaining the balance between speed and excellence.
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We Have Seen It All
In 2024, Sigma Inc. proudly celebrates 30 years of serving the nuclear power industry. Our journey has been marked by continuous growth, unwavering commitment to quality, and enduring partnerships with clients who trust us for their critical needs.
SERVICES
Dedicated to Excellence
At Sigma Inc., we understand the critical nature of our products. Our commercial-grade dedication (CGD) process involves a meticulous engineering evaluation to identify critical characteristics, ensuring each component performs its intended safety function. This rigorous approach guarantees compliance with industry standards and provides our clients with peace of mind.
TESTIMONIALS
Client Voices
Hear directly from those who have partnered with Sigma Inc. on various projects. Our clients’ testimonials reflect our dedication to exceeding expectations and the lasting relationships we build. From major corporate clients and blanket contracts to individual expedited orders, discover how our commitment to quality and innovation has helped get plants back online quickly and safely. Their stories stand as a testament to our professionalism and the impactful solutions we deliver.
Laura Benson,
Procurement Specialist
Infratech is a leader in assessing and renovating existing structures to meet contemporary standards and functionality. Whether it’s historical preservation, structural strengthening, or adaptation to new uses, our expert engineers provide detailed evaluations and innovative solutions. We ensure that all renovations enhance durability and safety, aligning with current building codes and environmental considerations.
Michael Carter,
Project Manager
"Infratech's construction management services are top-notch. They delivered our large-scale development on time and under budget, with a level of precision that exceeded our expectations. Their proactive communication made a complex project seem effortless."
Anita Rodriguez,
Architect
"I have collaborated with many engineering firms, but Infratech stands out for their structural assessment expertise. They provided insightful solutions that preserved the integrity of our historical renovation project, ensuring safety and beauty coexist seamlessly."
50+
Power Plants Served
150+
Years of Experience
30+
Years In Business
24
Years of Dedications
Get in Touch
Connect with Sigma Inc. today to discuss how we can assist with your next critical component. Our team is ready to provide the support you need. Fill out the contact form below, or reach out via phone or email. We’re here to help bring your projects to fruition with precision and professionalism.