Published On : July 2026
The glass-fused-to-steel tank industry is built on decades of accumulated engineering knowledge, and the manufacturer landscape reflects that: a handful of companies with multi-decade, multi-continent track records sit alongside a broader group of regional specialists competing on responsiveness and local presence. This page profiles the fifteen companies most commonly referenced across the industry, covering what each makes, where it operates, and its certification and innovation activity, as a neutral factual reference rather than a competitive ranking.
The global glass-fused-to-steel tanks market is served by a small number of manufacturers operating multi-continent production networks alongside a larger group of regional and national specialists. Global manufacturers typically compete on engineering depth, certification breadth, and the ability to service multi-site utility or multinational industrial accounts, while regional manufacturers compete on local manufacturing presence, faster response times, and price. Both tiers coexist because large infrastructure projects and small routine replacements are fundamentally different buying situations that reward different supplier capabilities.
Permastore, headquartered in the United Kingdom, has manufactured glass-fused-to-steel tanks and silos since 1959 and is widely recognized as a technical leader in the industry, with installations reported across more than 110 countries. Its product range spans water, wastewater, agricultural, and industrial storage applications, and the company maintains ISO 9001 and ISO 14001 certification alongside active participation in AWWA and European standards committees.
CST Industries, headquartered in Kansas City, Missouri, traces its roots to 1893 and describes itself as the world's largest manufacturer of factory-coated modular storage tanks and aluminum domes, with an installed base reported in the hundreds of thousands of structures across roughly 125 countries. Its tank types, coating technology, and specifications span glass-fused-to-steel tanks, epoxy-coated bolted tanks, welded tanks, and aluminum domes, serving water and wastewater, oil and gas, agriculture, and bioenergy end markets through manufacturing facilities across North America and the United Kingdom.
Balmoral Tanks, part of the UK-based Balmoral Group, manufactures glass-fused-to-steel and other bolted steel tanks for water, wastewater, fire protection, and industrial storage applications, serving utility and industrial clients primarily across the United Kingdom and Europe with a manufacturing base supporting both domestic and export projects.
Tank Connection is a US-based manufacturer offering bolted and glass-fused-to-steel storage tank systems for water, wastewater, and industrial bulk storage applications, with a manufacturing and engineering presence supporting projects across North America and international export markets.
Center Enamel, headquartered in China, manufactures glass-fused-to-steel tanks and silos for water, wastewater, biogas, and agricultural storage applications, and has expanded its export presence significantly across Asia, the Middle East, and beyond, positioning itself as a leading manufacturer serving both domestic Chinese infrastructure demand and international projects.
Hebei Wansheng, based in China, specializes in glass-fused-to-steel tanks for environmental and water treatment applications, serving municipal and industrial wastewater treatment projects primarily within the Chinese domestic market alongside a growing export footprint.
Foshan Jinxinsheng, headquartered in China, manufactures bolted glass-fused-to-steel storage equipment for water treatment and industrial applications, operating primarily within the Chinese market and expanding regional export activity.
AO Smith Harvestore carries one of the longest histories in this industry, tracing to the origin of glass-fused-to-steel tank technology in agricultural storage applications in the United States. The Harvestore product line remains associated with agricultural liquid and silage storage tanks built on glass-fused-to-steel construction principles.
Superior Tank, based in the United States, manufactures bolted and glass-fused-to-steel storage tanks for water, wastewater, and industrial applications, serving municipal and industrial clients primarily within the North American market.
Schumann Tank is a manufacturer of bolted steel and glass-fused-to-steel storage tank systems serving water, wastewater, and agricultural storage applications, with a production and service footprint concentrated in its home market and neighboring regions.
TF Warren Group, based in the United Kingdom, manufactures and services glass-fused-to-steel and bolted steel tanks for water, wastewater, and industrial applications, with particular focus on tank refurbishment, coating renewal, and lifecycle maintenance services alongside new tank supply.
HMT, headquartered in the United States, is primarily known for aboveground storage tank engineering, seal systems, and floating roof technology for the energy sector, alongside a bolted and glass-fused-to-steel tank product line serving water, wastewater, and industrial storage applications.
Containment Solutions manufactures storage tank systems, including glass-fused-to-steel and other coated bolted tank formats, for water, wastewater, and industrial containment applications, serving municipal and industrial clients across its regional market footprint.
Franklin Hodge Industries, based in the United Kingdom, manufactures glass-fused-to-steel tanks for water, wastewater, biogas, and industrial storage applications, serving utility and industrial clients across the UK and European export markets.
Highland Tank, based in the United States, manufactures steel storage tank systems including bolted and coated formats for water, wastewater, and industrial applications, with a manufacturing footprint serving primarily North American utility and industrial clients. Readers evaluating which manufacturer's compliance standards and certifications best match a specific project's requirements should note that certification portfolios vary by product line within each company, making project-specific verification an essential step regardless of overall manufacturer reputation.
Certification portfolios vary meaningfully across this manufacturer group, with the largest global players typically holding the broadest combination of AWWA, NSF/ANSI, ISO, EN, FM Approval, and NFPA certifications across multiple product lines, while regional specialists often hold a narrower but still relevant set of certifications matched to their core domestic market's regulatory framework. Technology portfolio depth, spanning standard, titanium-enriched, high chemical resistance, and hybrid coating systems, similarly varies, with the most established manufacturers generally offering the widest range of coating technologies to match diverse application requirements.
Distribution strategy differs sharply between the global and regional tiers of this industry: global manufacturers typically combine direct sales teams for major utility and EPC accounts with extensive distributor networks reaching smaller agricultural and light-industrial buyers, while regional manufacturers rely more heavily on direct relationships within their home market. Manufacturing facility footprint tracks closely with a company's geographic reach, the broadest global players operate multiple facilities across several continents, while regional specialists typically manufacture from a single home-market facility. This distribution structure connects directly to the applications and end users these manufacturers serve, since large multi-site utility and industrial accounts generally require the broader geographic servicing capability that only the largest manufacturers can reliably provide.
Innovation activity across this manufacturer group has concentrated recently around coating technology refinement, aimed at extending design life and improving chemical resistance for biogas and industrial chemical applications, alongside modest expansion of manufacturing capacity in Asia-Pacific and the Middle East to serve growing regional infrastructure demand. Several manufacturers have also expanded service and refurbishment offerings as the installed base of earlier-generation tanks reaches the point where lifecycle maintenance and coating renewal represent a growing share of overall business activity.