Design Tanks

What Design Tanks does

Design Tanks, LLC is a privately held custom manufacturer of fiberglass-reinforced plastic (FRP) tanks headquartered at 612 W Blackhawk St, Sioux Falls, South Dakota. The company was established in August 2000 when Raven Industries divested its FRP (Plastics) Division, carrying forward more than four decades of FRP manufacturing lineage from the original 1956 Raven balloon-to-plastics business. Design Tanks engineers and produces tanks ranging from 50 to 50,000 gallons in capacity with diameters from 2 to 14 feet, in round, sectionalized, and rectangular configurations, using chop-hoop filament winding (ASTM D3299) for large tanks, contact molding (ASTM D4097) for small and medium tanks, and advanced automation and robotics throughout the process. In-house engineering supports custom configurations, premium resin systems with rigorous incoming QC, and a minimum 10:1 safety factor, with claimed service life exceeding 20 years.

The company serves industrial and commercial end markets including water and wastewater, industrial chemicals, agriculture, food and beverage, oil and gas, and custom specialty applications, and claims customer relationships spanning Fortune 100 enterprises to small businesses across six continents. Key certifications and compliance regimes include NSF/ANSI 61 for potable water storage (achieved 2024), Build America Buy America (BABA), RTP-1 design guidelines, FDA compliance for food-grade applications, and ASTM D3299/D4097 manufacturing standards—each opening specific regulated procurement channels.

The business model is sales-led and engineered-to-order, with revenue generated primarily from one-time custom tank sales priced via bespoke quotes based on tank diameter, gallons, and application. A small aftermarket stream is generated through DesignTanksStore.com, an e-commerce parts channel selling replacement gaskets ($100), brinemaker dust bags ($250), and accessories. Customer acquisition uses a mix of content marketing (how-to articles, fiberglass tank standards content), Google AdSense remarketing, and direct sales via phone and contact forms, with multi-year contract cadence on custom projects. No revenue, headcount, ownership structure, or institutional investor information is publicly disclosed.

Name

Design Tanks

Legal name

Design Tanks, LLC

Website

https://designtanks.com

Company type

Private

Founded year

2000

Operating status

Operating

Headcount range

51–100 employees

Short description

Design Tanks is a Sioux Falls, South Dakota-based custom manufacturer of fiberglass-reinforced plastic tanks (50–50,000 gallons) for industrial, municipal, agricultural, and commercial storage applications across water, chemical, food/beverage, and oil/gas end markets globally.

Ownership category

akta.pro rank

Product category

Industrial Fiberglass Storage Tanks

NAICS

Boiler, Tank, and Shipping Container Manufacturing (3324), Plastics Pipe, Pipe Fitting, and Unlaminated Profile Shape Manufacturing (32612)

SIC

Miscellaneous Plastics Products (3080)

akta.pro primary industry

Water Storage & Delivery Infrastructure (Tanks, Reservoir Liners, Bladders) (AFABAHAK)

akta.pro secondary industry

FRP/GRP & Composite Materials (Resins, Fibers, Core Materials) (IMAJAKAC)

Keywords

• Fiberglass reinforced tanks
• Custom FRP tanks
• Industrial storage tanks
• Chemical storage tanks
• Potable water storage

Headquarters

HQ city

Sioux Falls

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Infrastructure, Marketing or Sales

Revenue model

1. Custom Fiberglass Tank Sales: Design Tanks manufactures and sells custom fiberglass reinforced plastic tanks for industrial and commercial applications. Tanks are sold as one-time purchases with custom pricing based on specifications, size, and requirements. They also sell accessories and parts through their e-commerce store.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Design Tanks designs, engineers, and manufactures custom fiberglass reinforced plastic (FRP) tanks for industrial, commercial, municipal, and agricultural storage applications, with capacities from 50 to 50,000 gallons and diameters from 2' to 14'. The product portfolio includes round, sectionalized, and rectangular tanks, brinemakers, scrubbers and reactors, plus tank accessories and replacement parts sold through an e-commerce store.

Product overview

Design Tanks is a custom fiberglass reinforced plastic (FRP) tank manufacturer offering a portfolio of engineered storage solutions. The core offering consists of custom FRP tanks available in sizes from 50 gallons to 50,000 gallons and diameters from 2' to 14', including round, sectionalized, and rectangular configurations. Product lines include tanks for Agriculture, Industrial Chemical, Oil & Gas, Food & Beverage, Water & Wastewater, Scrubbers & Reactors, and Brinemakers applications. The company also operates a parts store offering replacement components including Brinemaker Salt Dust Bags ($250) and Side Manway Gaskets ($100), along with accessories such as steel ladders and flanged connections. All tanks are engineer-designed and built with corrosion-resistant FRP materials.

Differentiator

Problem solved

Functional benefit

Products and services

• Custom Fiberglass Reinforced Plastic (FRP) Tanks Engineer-designed custom fiberglass tanks for chemical, water, and industrial storage applications. Capacities range from 50 to 50,000 gallons with diameters from 2' to 14', available in round, sectionalized, and rectangular configurations. Manufactured to ASTM D3299 or ASTM D4097 standards with at least a 10:1 safety factor.
• Brinemakers FRP tank systems engineered for brine production and storage, serving industrial, commercial, and agricultural applications such as filtration and water treatment.
• Scrubbers & Reactors Custom FRP tanks and vessels designed for industrial scrubbing and reactor applications in chemical and processing industries, with corrosion-resistant construction.
• Tank Accessories Outfitting components for FRP tanks including steel ladders, flanged connections, and custom fittings configured to customer specifications.
• Side Manway Gasket - 24" Replacement gasket designed for 24-inch side manway openings on FRP tanks, priced at $100, sold through the Design Tanks parts store.
• Brinemaker Salt Dust Bag Replacement dust bag for brinemaker systems, priced at $250, sold through the Design Tanks parts store to support brine production equipment.

Quantifiable outcome

• Tanks designed for 20+ years of service life, reducing maintenance costs and replacement needs
• +1 more outcomes

Named customers5 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators6 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Poly Processing Company: Poly Processing is one of the largest North American manufacturers of custom-molded and cross-linked polyethylene tanks for chemical, water, and industrial storage. Highly comparable to Design Tanks as a custom chemical and water storage tank manufacturer serving overlapping end markets, with HDPE/XLPE as the alternative material to FRP.
• Snyder Industries: Snyder Industries manufactures custom rotationally molded and fabricated polyethylene tanks, plus bulk containers and intermediate bulk containers, for industrial and agricultural applications. Direct peer to Design Tanks in custom bulk liquid storage serving similar chemicals, agriculture, and water end markets.
• Containment Solutions, Inc. Containment Solutions manufactures fiberglass underground and above-ground storage tanks for petroleum, water, and wastewater applications. Direct FRP competitor serving overlapping fuel, chemical, and water markets with comparable NSF-certified and UL-listed product lines.
• Xerxes Corporation (ZCL Composites): Xerxes (now part of ZCL Composites) is a major North American manufacturer of fiberglass underground storage tanks for fuel and water. A direct FRP tank peer competing with Design Tanks in water, chemical, and petroleum storage applications.
• Belco Manufacturing Co. Belco Manufacturing produces fiberglass-reinforced plastic tanks, scrubbers, ductwork, and stacks for chemical processing, pulp and paper, and air pollution control. Direct peer to Design Tanks in custom FRP tanks, scrubbers, and reactor vessels for industrial chemical customers.

Broad incumbents

• CST Industries (Tank Connection): CST Industries is a large, established manufacturer of bolted and factory-coated steel storage tanks serving water, wastewater, industrial, and energy markets globally. A broad incumbent offering an alternative material (factory-coated steel) to FRP in the same potable water and industrial liquid storage applications.
• Strongwell Corporation: Strongwell is a major U.S. manufacturer of pultruded and molded fiberglass structural products and custom FRP fabrications. Comparable to Design Tanks in FRP/composite manufacturing expertise, though broader in structural shapes and platforms rather than dedicated tank products.

Emerging players

• ParkUSA: ParkUSA manufactures prefabricated water and wastewater treatment equipment including packaged lift stations, grinder systems, and fiberglass enclosures. Comparable as a custom-engineered fiberglass water/wastewater infrastructure provider targeting similar municipal and industrial water customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/design-tanks

Compliance6 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 Design Tanks