10 Reliable Chemical Storage Tank Manufacturers

Safely storing chemicals means following all safety measures. When handling acids, flammable liquids, or highly pure liquids, the correct chemical storage tank guarantees safety, lasts a long time, and follows the rules in your industry. 

Because so many companies are out there, it becomes hard to distinguish which ones are genuine. We analyze 10 manufacturing companies that are important because of their attention to quality, innovations, and strong experience. We will discuss each reason they are famous, which tanks they use most, and what has given them a positive reputation. 

So, if you are buying a storage tank for industrial, agricultural, or wastewater uses, this list will guide you through the process.

How Important It Is to Have a Quality Chemical Storage Tank 

Before we discuss the manufacturers, let’s consider why choosing the correct chemical storage tank is very important:

Chemicals are often dangerous. If a tank is designed poorly, it may leak, become corroded, or even break apart, which can be very hazardous. Tanks differ in how long they last. The highest quality ones do not corrode, degrade from UV rays, or melt in heat. 

Regulation: There are many rules set by organizations (EPA, OSHA, and others) for storing chemicals in various industries. It ensures you are meeting all the rules for your industry.

10 Reliable Chemical Storage Tank Manufacturers

1. Poly Processing

Poly Processing is an American company that focuses on creating plastic tanks that can handle harsh and reactive chemicals. Their tanks are made from crosslinked and linear polyethylene, offering excellent resistance against corrosion, leaks, and chemical attacks.

One of their key strengths is offering double-wall tanks with built-in secondary containment. These are especially useful in industries where leaks or spills could cause serious harm to the environment or public safety.

Best for: Polyethylene tanks for storing corrosive and aggressive chemicals

Top Features:

• Crosslinked polyethylene tanks
• NSF-61 certified for drinking water use
• Built-in secondary containment
• Wide range of accessories and fittings

Key Industries: Water treatment, chemical manufacturing, agriculture

2. NTTANK

NTTANK is a leading name in the ISO tank container market. Based in China, they specialize in high-grade stainless steel tanks that are used to transport chemicals, food-grade liquids, and gases around the world. With a strong focus on quality and safety, their tanks are designed to meet international certifications including ASME, CSC, and IMDG.

NTTANK is also known for its custom-built tanks and OEM services. Whether you’re shipping hazardous chemicals or edible oils, NTTANK offers reliable solutions for global logistics companies and manufacturers.

Best for: ISO tank containers for liquid chemicals, food, and gases

Top Features:

• Certified ISO tank containers
• Custom designs for specific cargo
• Stainless steel build with corrosion protection
• Global shipping and support

Key Industries: Chemical transport, food logistics, gas distribution

3. Snyder Industries

Snyder Industries is a versatile tank manufacturer offering a wide selection of storage solutions, including vertical, horizontal, and cone-bottom tanks. They provide tanks in multiple materials like steel, fiberglass, and plastic, giving customers flexibility for indoor or outdoor chemical storage.

Their tanks are built to handle chemicals under pressure or temperature changes and come with add-ons like sight gauges, valves, and protective coatings. Snyder’s strong presence in the industrial sector makes them a preferred choice for heavy-duty applications.

Best for: Variety of plastic and steel chemical storage tanks

Top Features:

• Multiple tank materials (poly, steel, fiberglass)
• UV-resistant and long service life
• Custom fittings and venting options
• Available in multiple sizes and shapes

Key Industries: Oil and gas, industrial chemical processing, water storage

4. Assmann Corporation

Assmann Corporation offers high-quality polyethylene tanks made through rotational molding. This method creates strong, seamless tanks that are ideal for storing chemicals safely over long periods. Their tanks resist cracking, corrosion, and UV damage, making them perfect for both indoor and outdoor use.

They provide tanks in various shapes and sizes and offer helpful customization, such as adding heat tracing or insulation. Their tanks are often used in the food, pharmaceutical, and water treatment industries.

Best for: Long-lasting polyethylene tanks with FDA and NSF certifications

Top Features:

• Seamless, durable polyethylene tanks
• FDA and NSF-compliant materials
• Custom accessories and thermal protection
• Wide product range for different storage needs

Key Industries: Food processing, pharmaceuticals, municipal water systems

5. CST Industries

CST Industries is one of the oldest and most trusted tank manufacturers in the world. With more than 130 years of experience, CST has delivered over 375,000 tanks and 20,000 covers across 125 countries. The company produces factory-coated storage tanks, aluminum domes, silos, and specialty covers using advanced coating and fabrication technologies.

They are especially known for their glass-fused-to-steel (Vitrium) and epoxy-coated steel (OptiBond) tanks, which offer exceptional corrosion resistance and long service life. CST supports industries that require large-volume storage solutions with strict performance standards, such as water treatment, bioenergy, and petrochemicals.

Best for: Factory-coated storage tanks and aluminum domes for industrial and municipal applications

Top Features:

• Factory-applied Vitrium and OptiBond coatings
• Welded and bolted steel tank systems
• ISO 9001:2015 certified manufacturing
• Custom domes, roofs, and accessories
• Global distribution with local technical support

Key Industries: Water and wastewater treatment, energy and biofuels, industrial chemical storage, agriculture, fire protection systems.

6. Tank Connection

Tank Connection offers bolted steel tanks that can be easily assembled on-site. These tanks are ideal for storing large volumes of chemicals or liquids and are coated with advanced powder systems that protect against corrosion.

Their modular design allows for cost-effective shipping and flexible setup. Tank Connection is known for its turnkey tank systems that include everything from roof structures to mixers and ladders.

Best for: Modular bolted steel tanks for large-scale chemical storage

Top Features:

• Modular bolted design
• Industry-leading powder coatings
• Complete tank systems
• Fast installation and customization

Key Industries: Power plants, municipal storage, industrial processing.

7. Den Hartog Industries

It is the parent company behind Den Hartog Engeco and Pankratz Engineering. 

The company is focused on making High-Density Polyethylene (HDPE) Tanks. Den Hartog’s tanks are specially made from high-density polyethylene (HDPE) and are suitable for handling corrosive and rough chemicals.

Best for: Rotationally molded polyethylene tanks and custom plastic/metal components for chemical-related and agricultural use.

Top Features:

• Wide size range from small containers to 15,500-gallon vertical tanks
• UV- and chemical-resistant high-density polyethylene
• Custom molding: cone-bottom, open-top, hinged lids, translucent level gauges
• Full-service design and engineering support (2D/3D modeling, tooling)
• In-house fabrication, assembly, packaging, and delivery services

Key Industries: Agriculture (septic, irrigation), industrial and chemical processing, OEM equipment manufacturing, marine systems.

8. Peabody Engineering

Peabody Engineering is known for producing chemical tanks that meet tough industrial demands. They provide a full range of vertical, horizontal, and double-wall tanks made from high-grade plastic materials. Their designs can handle corrosive chemicals and tough weather conditions.

What makes Peabody stand out is its in-house engineering support. Customers can work with their team to build tanks that meet exact site or process requirements. They also follow all relevant safety and quality standards like ASTM.

Best for: Customized tanks for corrosive and hazardous chemical storage

Top Features:

• Custom-built tanks for industrial use
• High-resistance plastic materials
• Engineering design support
• Compliance with industry standards

Key Industries: Chemical production, wastewater treatment, industrial plants

9. Tuffa Tanks

Tuffa Tanks is a UK-based company that produces bunded (double-wall) chemical tanks. Their tanks are ideal for smaller businesses needing secure and compliant storage. They offer both plastic and steel options, and their tanks are designed to meet UK environmental and safety regulations.

Tuffa’s tanks are often used by schools, farms, and facilities looking for easy-to-install storage systems. Their quick delivery and customization options also make them a go-to choice for local customers.

Best for: Compact and regulatory-compliant chemical tanks for small businesses

Top Features:

• Bunded tanks for extra safety
• Available in plastic and steel
• Fast delivery across the UK
• Built to meet HSE and EA guidelines

Key Industries: Agriculture, education, local government, small-scale industries

10. Belco Manufacturing

Belco Manufacturing specializes in fiberglass tanks that can handle extremely harsh chemicals. Their tanks are available in horizontal or vertical designs and are built to resist acids, solvents, and other aggressive substances. Each tank is made to meet ASME and API standards.

Because fiberglass doesn’t corrode like steel, Belco’s tanks are often chosen for long-term use in tough industrial conditions. They are ideal for companies that need reliable storage in extreme chemical environments.

Best for: Fiberglass tanks for highly corrosive chemicals

Top Features:

• High chemical resistance
• Custom fiberglass designs
• ASME/API-compliant builds
• Low maintenance and long service

Key Industries: Mining, petroleum refining, hazardous waste handling

The Bottom Line 

Choosing the right chemical storage tank is not just about capacity – it’s about safety, reliability, and long-term performance. All the manufacturers listed above have proven track records, but when it comes to international transport and quality-certified ISO tank containers, NTTANK stands out. Their stainless steel tanks meet global standards, support hazardous and non-hazardous liquids, and are built to handle tough conditions with ease.

If you need a dependable tank for chemical, food-grade, or gas transport, NTTANK is a smart investment. With custom options, worldwide support, and years of experience, they offer the perfect balance of quality and affordability.