Superior Tank Co., Inc.

What Superior Tank Co., Inc. does

Superior Tank Co., Inc. (STCI) is a privately held, California-incorporated manufacturer of bolted and welded steel storage tanks founded in 1984 and headquartered in Rancho Cucamonga, California. The company engineers, manufactures, and installs custom steel storage tanks ranging from 10,000 to 2,500,000 gallons for municipal water utilities, oil and gas operators, industrial fire-protection systems, agricultural operators, and dry-bulk material handlers. STCI also sells replacement parts and accessories and, through an alliance with Superior Tank Solutions, provides inspection, rehabilitation, cleaning, and emergency tank services across California and Arizona.

Manufacturing is anchored by three factory nodes — the Northern California Division in Bakersfield and the Gulf Coast Division in Rosenberg, Texas, plus the Rancho Cucamonga headquarters — with a Latin-America Division in Guadalajara, Mexico serving broader Latin American markets. The company pioneered factory powder coating on bolted steel tanks, using a seven-stage, 500+ foot coating line that includes a proprietary silica-zirconium (SiZr) liquid seal underlayer, and pairs it with in-house 6-axis A.R.T. robotic welding and CNC precision punching that delivers 100% bolt-hole placement accuracy and a 20+ year design life. It is one of only two manufacturers in the world holding both the API 12B Monogram (License 12B-0007) and API Spec Q1 (License Q1-2039) certifications for oil and gas storage.

STCI runs a quote-based, project-driven direct-sales model with in-house installation crews and contractor licensing across all 50 states. Go-to-market is enterprise field sales augmented by specification-led marketing through trade shows (AWWA, NFPA, WEFTEC, IRWA, Texas Water, Design-Build Water/Wastewater), downloadable engineering resources, and digital content. Pricing is not publicly disclosed and is determined by capacity, coating system (factory powder coat, hot-dip galvanizing per ASTM A123, or 304/316 stainless), material, and configuration. The customer base spans government, industrial, commercial, and agricultural buyers; no individual customer concentration is disclosed.

Name

Superior Tank Co., Inc.

Legal name

Superior Tank Co., Inc.

Website

https://superiortank.com

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

51–100 employees

Short description

Superior Tank Co., Inc. is a private US manufacturer founded in 1984 that designs, builds, and installs custom bolted and welded steel storage tanks from 10,000 to 2,500,000 gallons for municipal water, oil and gas, fire protection, agriculture, and dry-bulk customers across the US and Latin America.

Ownership category

akta.pro rank

Headquarters

HQ city

Rancho Cucamonga

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. Storage Tank Manufacturing & Sales: Manufacture and sale of custom bolted and welded steel storage tanks. Tanks are available from 10,000 to 2,500,000 gallons. Product includes engineering, manufacturing, and installation services as part of comprehensive storage solutions.
2. Installation Services: In-house tank installation teams based in California and Texas. The company holds contractor's licenses throughout the United States and provides full insurance coverage and bonding capacity. Installation includes foundation preparation, tank assembly/erection, and post-installation testing (holiday testing, hydrotesting, vacuum testing).
3. Parts & Accessories: Sale of replacement parts and accessories for bolted and welded storage tanks including safety systems, access equipment, structural elements, and custom parts. Components include shell manways, nozzles, roof hatches, liquid level indicators, flanges, weir boxes, ladders, and tank mixing systems.
4. Tank Service & Maintenance: Full range of tank repair and maintenance services through alliance with Superior Tank Solutions including rehabilitation services, inspection services, tank cleaning and disinfection, coating repairs, emergency tank services, and annual maintenance programs.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Superior Tank Co., Inc. (STCI) manufactures custom-engineered bolted and welded steel storage tanks ranging from 10,000 to 2,500,000 gallons, with options including factory powder coating, hot-dipped galvanization, and stainless steel fabrication. The company delivers complete tank solutions spanning engineering, manufacturing, installation, and ongoing service/maintenance for potable water, wastewater, crude oil, fire protection, agricultural, and dry bulk applications.

Product overview

Superior Tank Co., Inc. is a manufacturer of bolted and welded steel storage tanks offering two core product lines: Bolted Steel Storage Tanks and Welded Steel Storage Tanks. Bolted tanks are factory-finished with powder coating, hot-dipped galvanization, or stainless steel options, while welded tanks are field-fabricated with liquid coatings. The portfolio extends across multiple industry-specific applications including water storage (potable and wastewater), crude oil and petrochemical storage, fire protection, agricultural storage, and dry bulk silos. The company provides comprehensive services including engineering, manufacturing, installation, and maintenance/repair services, along with a full range of tank parts and accessories.

Differentiator

Problem solved

Functional benefit

Products and services

• Bolted Steel Storage Tanks Factory-finished bolted steel storage tanks with powder coating, hot-dipped galvanization, or stainless steel options. Available from 10,000 to 2,500,000 gallons with fast assembly and minimal site impact. Manufactured to ISO 9001:2015 standards with NSF 61/372 certification available.
• Welded Steel Storage Tanks Field-fabricated heavy gauge carbon steel tanks fused by certified welders with specialized field liquid coatings. Smooth, seamless construction available from 10,000 to 2,500,000 gallons for industrial liquid storage applications.
• Water Storage Tanks Potable and raw water storage tanks designed to AWWA D103-9 and AWWA D100 standards with NSF 61/372 certification. Available with epoxy powder coated or liquid epoxy coatings for drinking water storage applications.
• Wastewater Storage Tanks Storage tanks for aggressive wastewater with premium coatings and encapsulated hardware. Includes anaerobic/aerobic digesters, equalization tanks, Sequencing Batch Reactors (SBR), and Membrane Bioreactors (MBR).
• Crude Oil Storage Tanks Bolted and welded steel tanks for crude oil and petrochemical storage with API 12B Monogram and API Spec Q1 certification. Applications include well site storage, frac water treatment, refinery storage, and bio-energy processing.
• Fire Protection Storage Tanks NFPA-22 classified and FM Approved fire protection tanks for warehouse, urban structure, and wildfire protection. Includes open-top tanks like the Heli-Hydrant system for firefighting helicopter water refill via snorkel.
• Agriculture Storage Tanks Storage tanks for irrigation water, liquid fertilizer (UAN and liquid manure), packing house water storage, and crop storage. Up to 2,500,000 gallons capacity with epoxy or hot-dipped galvanized finishes.
• Dry Bulk Storage Silos Steel storage silos for dry bulk materials including grains, sand, cement, gravel, coal, and sawdust. Custom designed to withstand specific gravity requirements with flat bottom bins and cone bottoms for superior flow discharge.
• Tank Installation Services In-house installation teams for bolted and welded steel tanks with full insurance coverage and bonding capacity. Contractor licenses held throughout the United States. Includes foundation preparation, hydrotesting, vacuum testing, and coating holiday testing.
• Storage Tank Service & Maintenance Full range of services for bolted and welded tanks including parts and safety equipment installation, rehabilitation services, pre/post installation services, inspection services, tank cleaning and disinfection, coating repairs, and emergency tank services.
• Tank Parts & Accessories Standard and custom parts including shell manways, nozzles, roof hatches, liquid level indicators, flanges, weir boxes, vacuum tester boxes, sample boxes, anti-vortex outlets, ladders, davit arms, and tank mixing systems.

Quantifiable outcome

• Factory powder coating has 20+ year design life with SiZr seal slowing corrosion rate and preventing spread when coating is damaged
• +3 more outcomes

Named customers5 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Superior Tank SolutionscoreStrategic or Co-development PartnerSuperior Tank and Superior Tank Solutions have formed an alliance to provide a full range of services for bolted and welded storage tanks. The partnership enables comprehensive tank service capabilities including inspection, cleaning, rehabilitation, coating repairs, and emergency tank services. Superior Tank Solutions specializes in water storage tank assessments, service, maintenance, and repairs throughout California and Arizona.

Scale indicators8 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• McDermott International: McDermott International (formerly CB&I) is a major global EPC contractor with extensive experience in oil & gas storage tanks and infrastructure. While broader in scope and focused on mega-projects, they overlap with Superior Tank in large-scale oil & gas storage tank installations.

Direct peers

• DN Tanks: DN Tanks specializes in prestressed concrete water storage tanks for potable water, wastewater, and recycled water applications. They compete with Superior Tank for municipal water storage specifications as an alternative material solution in the same end market.
• Permian Industries: Permian Industries manufactures bolted steel storage tanks serving oil & gas, water, and industrial applications. They are a direct competitor to Superior Tank with similar customer segments, geographic overlap in the southern US, and comparable product offerings in crude oil and water storage.
• CST Industries: CST Industries is one of the largest global manufacturers of bolted steel storage tanks and the parent of the Aquastore brand. They directly compete with Superior Tank across water, oil & gas, and industrial storage applications with overlapping product lines, certifications, and direct sales models.
• Caldwell Tanks: Caldwell Tanks is a leading designer and builder of water storage tanks including bolted and welded steel tanks. They directly compete with Superior Tank in the municipal and industrial water storage market with similar engineering, AWWA-compliant, and installation capabilities.
• Phoenix Fabricators & Erectors: Phoenix Fabricators & Erectors designs, manufactures, and erects bolted and welded steel storage tanks. They compete directly with Superior Tank across water, oil & gas, and industrial storage with comparable vertical integration from engineering through installation.
• Highland Tank: Highland Tank manufactures steel storage tanks for petroleum, water, and industrial applications. They offer comparable bolted and welded steel tank products and compete with Superior Tank across similar end markets with overlapping UL, API, and AWWA certifications.
• Fisher Tank Company: Fisher Tank Company manufactures and erects welded steel tanks and also acts as a dealer for bolted tanks. They compete with Superior Tank in industrial and commercial storage applications primarily across the eastern US with comparable field-fabrication capabilities.
• SteelCore Tank: SteelCore Tank designs and builds glass-fused-to-steel bolted tanks for water, wastewater, and industrial applications. They compete with Superior Tank's bolted steel tank offering in similar customer segments with comparable factory-coated corrosion protection technology.
• Tank Connection: Tank Connection designs and manufactures bolted steel tanks with proprietary powder coating systems. They are a particularly close peer to Superior Tank given similar product positioning, factory-applied coating technology, and overlapping presence in water, oil & gas, and industrial storage markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks7 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/SuperiorTankCoInc

Compliance11 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Superior Tank Co., Inc.