Den Hartog Industries

Name

Den Hartog Industries

Legal name

Den Hartog Industries, Inc.

Website

https://denhartogindustries.com

Company type

Private

Founded year

1976

Operating status

Operating

Headcount range

251–500 employees

Ownership category

akta.pro rank

Product category

Industrial Plastics Manufacturing

NAICS

Plastics Pipe, Pipe Fitting, and Unlaminated Profile Shape Manufacturing (32612), Rubber and Plastics Hoses and Belting Manufacturing (326220), Boiler, Tank, and Shipping Container Manufacturing (3324)

SIC

Miscellaneous Plastics Products (3080), Gaskets, Packg & Sealg Devices & Rubber & Plastics Hose (3050), Plastics Foam Products (3086)

akta.pro primary industry

Blow-Molded Tanks & Reservoirs (Water, Fuel, Chemical) (IMANAGAG)

akta.pro secondary industries

Extrusion Blow-Molded Containers (HDPE/PET Bottles & Jugs) (IMANAGAA), Consumer Products Injection Molding (Housewares, Toys, Personal Care) (IMANAFAE), Polyurethane (PU) Rigid Foam Manufacturing (IMANAIAD)

Keywords

• Plastic tank manufacturing
• Rotational molding services
• Marine dock accessories
• Hog facility equipment
• OEM custom molding

Headquarters

HQ city

Hospers

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Plastics Manufacturing: Manufactures and sells plastic tanks and products through Ace Roto-Mold, Injection Molding, and Blow Molding divisions. Products include liquid storage tanks, septic/cistern tanks, marine products, and custom molded parts.
2. Metal Fabrication: Sowjoy division provides hog facility equipment including gates, flooring, ceiling inlets, and custom metal fabrication for nursery and finisher facilities.
3. Custom/OEM Manufacturing: Offers custom rotational molding, injection molding, metal fabrication, blow molding, custom assembly and secondary operations, custom packaging services, flotation and structural foam filling, and engineering services including product design assistance.

Pricing tiers

Go-to-market motion2 records

Distribution channels5 records

Marketing channels4 records

Core offering

Den Hartog Industries is a family-owned plastics and metal manufacturer operating four divisions—Ace Roto-Mold (rotational molding), Injection Molding, Blow Molding, and Sowjoy (metal fabrication)—producing polyethylene liquid storage tanks from 2.5 to 15,500 gallons, septic and cistern tanks, marine dock accessories, hog facility equipment, and OEM custom-molded parts. The company also offers in-house mold design, engineering support, custom packaging, and assembly services.

Product overview

Den Hartog Industries is a family-owned plastics and metal manufacturing company offering a diversified portfolio of physical products across multiple divisions. The company operates four manufacturing divisions: Ace Roto-Mold (rotational molding producing tanks and marine products), Injection Molding (producing custom parts and accessories), Blow Molding (producing spot sprayers and dock cushions), and Sowjoy (hog facility equipment). The core product offerings include liquid storage and containment tanks (from 2.5 to 15,500 gallons), septic and cistern wastewater systems, marine products (float drums, dock wheels, dock cushions, mooring buoys), Ace Dock Accessories branded products, Dualline double wall containment tanks, and Sowjoy branded hog facility equipment. The company provides custom OEM manufacturing services and operates with a vertical integration model, manufacturing its own lids, fittings, and accessories through its injection molding division. Products serve the agricultural, industrial, marine, and OEM markets with a focus on polyethylene tanks and accessories.

Differentiator

Problem solved

Functional benefit

Brands

• Ace Roto-Mold: Quality plastic tanks and accessories for industrial and agricultural containment needs, including liquid storage, septic/cistern tanks, marine products, and custom rotational molded products
• Ace Dock Accessories
• Sowjoy
• DUALLINE

Products and services

• Liquid Storage & Containment Tanks

Quantifiable outcome

• Products manufactured from 2.5 gallons to 15,500 gallon capacities
• +2 more outcomes

Named customers1 record

Segments5 records

Ideal customer profiles5 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.

• MetstrademinorStrategic or Co-development Partner · 5 December 2025Den Hartog Industries participated as one of the companies at Metstrade discussing global marina infrastructure renewal. Metstrade is an industry trade show where companies discuss sustainability, smarter engineering, and geographic expansion in the marina sector. Den Hartog outlined strategies to capitalize on infrastructure renewal demand, particularly for float drums and dock accessories.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Norwesco: Largest North American rotational molder of polyethylene tanks for agricultural, industrial, and septic applications — directly comparable to Ace Roto-Mold across capacity range, end-markets, and channel structure.
• Snyder Industries: Manufacturer of rotationally molded polyethylene tanks, material handling containers, and custom molded products serving agricultural, industrial, and OEM customers — overlapping product mix and customer base with Den Hartog.
• Tank Holding Corp: Parent of Norwesco and other tank brands; portfolio of rotationally molded polyethylene tanks for liquid storage, septic, and industrial applications — same core processes and end-markets as Den Hartog.
• Infiltrator Water Technologies: Leading manufacturer of plastic septic and stormwater chambers and tanks — directly comparable to Den Hartog's septic/cistern tank line and competes for the same wastewater infrastructure demand.
• Chem-Tainer Industries: Manufacturer of rotationally molded polyethylene tanks, drums, and containers for chemical, water, and industrial storage — overlapping product range and distributor-driven GTM motion.
• Bonar Plastics (SIA Group): Producer of rotationally molded containers, tanks, and bulk handling products serving agricultural and industrial markets — comparable capacity range and OEM custom offering.
• Hog Slat: Largest U.S. supplier of hog production equipment including gates, flooring, and ventilation — directly comparable to Den Hartog's Sowjoy division in the Midwest hog facility market.
• Automated Production (AP/Cumberland): Supplier of hog and poultry production equipment including feeding, ventilation, and flooring systems — directly competes with Sowjoy for hog facility operators.

Broad incumbents

• Mauser Packaging Solutions: Global industrial packaging manufacturer offering blow-molded and rotationally molded containers for chemical and industrial liquid handling — overlaps with Den Hartog's blow-molded spot sprayers and chemical tank lines at larger scale.
• Advanced Drainage Systems (ADS): Publicly traded leader in water management solutions including stormwater and on-site wastewater products — competes with Den Hartog's septic/cistern tank line within broader infrastructure water management.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/DenHartogInd/?ref=aymt_homepage_panel
• LinkedInlinkedin.com/company/den-hartog-industries-inc

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries4 records

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 Den Hartog Industries