Shaping Excellence for Over 70 Years
At Compco, we don’t just manufacture tank heads — we shape solutions.
As America’s leading supplier for the pressure vessel, water heater/storage, propane, and cryogenics industries, we specialize in deep-draw metal stamping with mechanical and hydraulic presses ranging from 600 to 2,500 tons.
For more than seven decades, customers have trusted Compco for exceptional quality, complete customer care, and on-time delivery — every time.
Our story is built on resilience.
Clarence Smith Sr. founded Compco in 1952, but his journey started long before that — as a 10-year-old orphan in Youngstown, Ohio, learning the basics of business from a local grocer while living in the store’s basement. Those early lessons in grit and hard work shaped a company that would become a manufacturing leader.
Starting with pipe hangers, Clarence and business partner Martin Poshner quickly recognized a greater opportunity: manufacturing tank heads. Their vision fueled Compco’s growth — and expanded its expertise across the metal stamping and fabrication industries.
Today, Compco is more than a manufacturer — we are a proud community partner, providing great jobs for great people and delivering a full range of services, including stamping, cutting, welding, assembly, and custom fabrication.
Now led by the third generation of the Smith family — and training the fourth — Compco continues to build a future where innovation, quality, and integrity remain at the heart of everything we do.
Your Partner in Precision. Your Partner in Progress.
Quality Systems and Registrations
ISO 9001:2015 Certified
IATF 16949:2016 Certified
ITAR M41170
UEI: E3ESXJJMHG55
CAGE: 8LEP9
ITAR Registered
NIST Registered
Business Size: Small Business
NAICS: 332119, 332312, 332313,332420,
336370,336991, 336992, 333517,
336212,333999, 332431,332510, 336611
Precision measure equipement
Precision measuring equipment
• Creaform Black Elite 3D scanner with probing and reverse engineering capability running Polyworks software for reporting
• 7 Axis Romer Scanner/Probing portable CMM which runs Polyworks software.
Clarence Smith founder of Diamond Steel, Commercial Piping and Compco.
Martin was Smith’s trusted business partner and friend.
The Smith family has a long history of supporting the community. Today you will continue to see Compco team members at numerous fundraisers across the Mahoning Valley.
Compco got its name from an abbreviating Commercial Piping Company.
Clarence Jr. was always ahead of his time in innovation and technology.
The team members pose for picture to support Mr. Smith’s run for a political office at the old shop location at E. Hylda Ave, Youngstown, Ohio.
For generations, Compco’s leadership has upheld the values of a family-owned business—integrity, trust, and care for people. This legacy of family stewardship creates stability, long-term vision, and a commitment to treating employees and customers like family.
Celebrating 60 years was a proud milestone for Compco, marking six decades of innovation, craftsmanship, and strong partnerships. It was a moment to honor our history, thank our employees and customers who made it possible, and reflect on the values that have guided us since the beginning.
Compco’s leadership team is a group of experienced, forward-thinking professionals dedicated to guiding our company with integrity, innovation, and a customer-first mindset. With deep expertise across manufacturing, operations, and business strategy, they work together to ensure we deliver reliable solutions, build strong partnerships, and continue to grow as an industry leader.
