Sioux Steel Company

What Sioux Steel Company does

Sioux Steel Company is a privately held, family-owned manufacturer of agricultural storage, handling, and containment equipment, headquartered in Sioux Falls, South Dakota and operating continuously since 1918. The company designs and fabricates grain bins (commercial bins up to 132' diameter and 1 million+ bushel capacity, farm bins, and three duty ratings of hopper bins), fabric-covered Pro·Tec buildings including the Sentry Series (up to 200' widths and 5 million+ bushel flat storage), the Daay line of paddle sweeps (rubber-paddled auger replacements for safer OSHA-compliant bin unloading), aeration equipment (centrifugal, axial, high-speed fans with VFD controls), bin accessories (Cornado Grain Spreader, Guardian GMS monitoring, SafeGrain level sensors, LevALERT indicators, Fan Jammer), and grain handling systems via the integrated Lustrum equipment line. The company also operates Koyker Manufacturing (a wholly owned division producing Legend, PRO, and Koyker front-end tractor loaders and attachments) and a livestock equipment portfolio under Victory and HiQual brands covering gates, panels, feeders, and working equipment.

The underlying technology platform is steel fabrication and engineered structural design — 70,000 psi tensile strength steel, G90 galvanized construction, engineered roof structures rated to 50,000 lb peak loads with 65,000 lb wind/snow capacity — protected by an extensive patent estate (20+ paddle sweep patents, Flexstor, Pro-Tec Buildings, livestock equipment, and patent-pending Cornado spreader) and the industry's longest 10-year warranty on farm bins. Select customer signals include Pointsett Rice and Grain, Ag Valley Cooperatives, York NE Cooperative, Hazel Farmers Elevator, Mosaic Crop Nutrition, Ravensdown Fertilizer, and Middle Loup Livestock Nutrition, spanning commercial grain, fertilizer, cooperative, and livestock segments.

Revenue is generated primarily through hardware product sales via an authorized dealer network across the United States and Canada, supplemented by direct e-commerce through agpartsdirect.com and Amazon Marketplace for consumer products. Pricing is quote-based through dealers and is not publicly disclosed; there are no subscription, SaaS, or recurring revenue streams disclosed. Operations are served from a single HQ location with 101-250 employees, and the company is led by President & CEO Scott Rysdon.

Name

Sioux Steel Company

Legal name

Sioux Steel Company

Website

https://siouxsteel.com

Company type

Private

Founded year

1918

Operating status

Operating

Headcount range

101–250 employees

Short description

Sioux Steel Company is a family-owned US manufacturer of agricultural storage and handling equipment, including commercial and farm grain bins, fabric-covered buildings, paddle sweeps, livestock equipment, and tractor loaders, sold through a US and Canada dealer network.

Ownership category

akta.pro rank

Product category

Agricultural Equipment Manufacturing

NAICS

Farm Machinery and Equipment Manufacturing (333111), Agricultural Implement Manufacturing (33311), Agriculture, Construction, and Mining Machinery Manufacturing (3331)

SIC

Farm Machinery & Equipment (3523), Construction, Mining & Materials Handling Machinery & Equip (3530)

akta.pro primary industry

On-Farm Grain Storage Construction, Installation & Maintenance (AFAOABAJ)

akta.pro secondary industries

Bulk Material Handling Systems (Belt Conveyors, Feeders, Stackers, Reclaimers) (IMAHABAH), Hay & Bale Handling Equipment (IMAHACAF)

Keywords

• Grain storage systems
• Agricultural equipment
• Steel manufacturing
• Livestock equipment
• Front-end loaders

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

Revenue model

1. Hardware Product Sales: Sioux Steel generates revenue through the manufacture and sale of physical agricultural equipment including grain bins, commercial bins, hopper bins, livestock equipment, paddle sweeps, Pro-Tec buildings, and accessories. Products are sold through dealers and direct channels.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Sioux Steel Company designs and manufactures heavy-duty steel agricultural equipment, primarily grain storage and handling systems including commercial and farm grain bins (up to 132' diameter, 1 million+ bushel capacity), hopper bins, paddle sweeps, aeration fans, and Pro·Tec fabric-covered buildings. The company also produces livestock equipment (gates, panels, feeders, waterers), front-end tractor loaders under its wholly-owned Koyker Manufacturing division, bunker walls, and custom steel products such as garden beds and water storage tanks. Products are sold through an authorized dealer network across the United States and Canada, plus direct e-commerce and Amazon for selected consumer products.

Product overview

Sioux Steel Company is a family-owned manufacturer (since 1918) offering a diversified portfolio of agricultural storage and handling products. The core offerings center on grain storage solutions including Commercial Bins (up to 132' diameter, 1 million+ bushel capacity), Farm Bins, and Hopper Bins in three duty ratings. Supporting these are Paddle Sweeps under the Daay brand (including DPS G2, Raptor II/IV, Edge series) featuring rubber paddles instead of dangerous augers for enhanced safety. The product line includes complete grain handling systems via Lustrum equipment (grain legs, conveyors, towers), aeration products (Triumph Fan, Centrifugal, Axial, High-Speed fans with VFD control), and bin accessories (Cornado Grain Spreader, Guardian GMS smart monitoring, SafeGrain radar level sensors, LevALERT indicators, Fan Jammer). The Pro·Tec Buildings division offers fabric-covered buildings including Sentry Series (40'-200' widths for 5+ million bushel storage) and Single Tube buildings, expandable with Grain Shield technology. Koyker Manufacturing produces front-end loaders (Legend, PRO, Koyker lines) with attachment accessories. Livestock Equipment spans gates, panels, feeders, and working equipment under Victory and HiQual brands. Custom Products include Verdant Garden Beds, Grain Bin Gazebos, Water Storage Tanks, and specialty items. The portfolio integrates across product lines—for example, Flat Grain Storage uses Pro·Tec buildings with Grain Shield, and Dust Suppression Hoppers complement grain handling operations.

Differentiator

Problem solved

Functional benefit

Brands

• Koyker Manufacturing: Division of Sioux Steel Company manufacturing high quality front end loaders and attachments for tractors
• Pro·Tec Buildings
• Guardian GMS
• Daay Bin Paddle Sweep
• Cornado Grain Spreader
• HiQual
• Legend Loaders
• PRO Loaders

Products and services

• Commercial Bins Heavy-duty commercial grain storage bins engineered for up to 50,000 lbs peak load roof capacity, supporting grain weights up to 70 lb/bushel, with diameters ranging from 18' to 132' and capacities over 1 million bushels; designed for commercial grain elevators and large agricultural operations.
• Farm Bins Farm-scale grain storage bins designed for grains up to 64 lb/bushel with a 10-year warranty, the longest in the industry; targeted at individual farmers and on-farm grain storage.
• Hopper Bins (Heavy, Medium, and Standard Duty) Hopper bins in three duty ratings — heavy duty (15'-36' diameter, 4,300–50,000 bushel, 45-degree cone), medium duty (15'-21', 2,100–7,600 bushel), and standard duty (12'-18', 1,300–3,900 bushel) — for commercial loading and free-flowing materials up to 56 lb/bu.
• Daay Paddle Sweeps (DPS G2, Raptor II/IV, Edge Sweep, Edge Buster, Mini-Sweep, Daay Power Sweep, Interceptor, DPS-12K) Safety-focused paddle sweeps using flexible rubber paddles instead of dangerous augers; designed to be fully submersed in grain and self-unbury from avalanches, with explosion-proof motors and capacity up to 5,500 bushels per hour. Sold to commercial grain operators and cooperatives for OSHA-compliant bin unloading.
• Koyker Legend Loaders Front-end tractor loader product line under the Koyker Manufacturing division of Sioux Steel, with supporting engineering manuals and dealer fitment search.
• Koyker PRO Loaders Professional-grade front-end tractor loader line under the Koyker Manufacturing division, with engineering manuals and model search tools.
• Koyker Loaders Standard front-end tractor loader product line under the Koyker Manufacturing division, with loader search and engineering manuals.
• Koyker Loader Attachments (Pallet Forks, Bale Spears, Grapples) Attachments for Koyker front-end loaders including pallet forks, bale spears, and grapples, with engineering manuals available for grapple configurations.
• Pro·Tec Buildings (Sentry Series and Single Tube) Engineered fabric-covered buildings in Sentry Series (40'-200' widths for 5 million+ bushel grain storage) and Single Tube (24'-36' widths using Allied Gatorshield tubing for livestock shelter, hay storage, salt/sand, and general ag storage); designed for 70 mph wind and 26 PSF ground snow load, with natural lighting and ventilation.
• Flat Grain Storage Buildings Pro·Tec fabric-covered buildings configured for flat grain storage with capacities exceeding 5 million bushels; compatible with the Grain Shield option for up to 30%+ additional storage capacity.
• Livestock Equipment (HiQual Gates & Panels, Victory Gates & Panels, Feeders, Tanks & Waterers, Calving, Working Equipment) Complete livestock equipment portfolio including gates and panels (square-top 16-gauge HiQual and round-top 16-gauge Victory), fencing, hay and bunk feeders, feed bins, tanks and waterers, calving supplies, cattle chutes, alleys and crowding tubs, head gates and doors, portable systems, range tough corral panels, horse equipment, and livestock shade.
• Bunker Walls G90 galvanized steel bunker wall sections available in 4' and 6' heights with 10' length sections, designed for temporary grain storage with aeration compatibility.
• Sioux U-Trough Unload System Pre-assembled grain bin unload system with Widemouth Center Sump, available in 8", 11", or 14" U-Trough sizes, 18" SureGrip vulcanized rubber wheel drive with 16:1 gear reduction, and up to 10,000 BPH max capacity.
• Grain Push System Pneumatic air system for conveying low volumes of grain between dryers, trucks, dump pits, hoppers, storage bins, silos, and feed bins with capacities from 300 to 1,900 BPH.
• Lustrum Grain Handling Equipment Complete grain handling equipment line including grain legs, cat walks, towers, conveyors, and accessories for full grain storage systems.
• Dust Suppression Hopper (DSH) Systems Dust reduction system installed under feed points that reduces total dust by up to 98%, concentrating discharge as a solid column for cleaner loading of fertilizers, grains, minerals, and foodstuffs into trucks, rail cars, and storage containers.
• Cornado Grain Spreader Patent-pending grain spreader with adjustable trap door and lower deflector for consistent grain spread at any flow rate, handling up to 8,000 bushels/hour and fitting bins 24'-72' in diameter; the only spreader allowing Tri-States Grain Temp monitoring cable mounting in the center of the bin.
• Guardian GMS (Grain Management Systems) Smart grain management system for monitoring grain temperature and moisture in bins 12'-66' diameter, with remote control of fans, augers, and connected devices via free smartphone app and no subscription fees.
• SafeGrain Level Monitoring Radar-based level monitoring sensors including RotoTrack, RadarMax, RadarMax Plus, and RadarMax Ultra for continuous commodity level and volume monitoring in storage facilities, with RS-485 Modbus RTU connectivity.
• LevALERT Model 9700 Bin Level Indicator Mechanical bin level indicator providing visual indication of material levels with color change from black to yellow when material reaches the indicator, 5-year warranty, and 3M reflective visibility up to 300 feet.
• Fan Jammer Fan locking device that secures centrifugal fans in place to prevent wind-induced rotation when not in operation, reducing wear and saving energy costs.
• VFD Fan Control Variable Frequency Drive motor management system offering high/medium/low speed control for grain bin fans, UL/cUL listed with independently heated and cooled panels designed for interlock with heater units.
• High-Speed Centrifugal Fans 20-50 HP high-speed 3-phase fans at 3500 RPM with enclosed motors, optimized for small grain aeration, deep grain depths, high static pressure situations, and tall tanks.
• Centrifugal Fans 5-50 HP standard low-speed centrifugal fans with heavy-duty 11-gauge housing, backward curved non-overloading airfoil blades, and 2-year warranty.
• Axial Fans Cast aluminum airfoil blade axial fans providing economical maximum airflow at lower static pressures, with 2-year warranty and heater options.
• Triumph Fan Advanced grain aeration fan available in 7.5 hp and 10 hp models in single or three phase configurations.
• Grain Shield Patented wall-mounted grain storage capacity expansion system designed for Pro·Tec Sentry buildings with widths from 110' to 180', expanding building capacity up to 30% or greater.
• Verdant Garden Beds Heavy-duty galvanized steel raised garden beds in 18" height with corrugated 18-gauge steel, available in multiple sizes from 2'x2' to 4'x7.5' with custom sizing; sold through Amazon for home and community garden use.
• Grain Bin Gazebos Backyard gazebos built from converted grain bins with 4" corrugated galvanized steel walls, 30-degree roof slopes, and available in 12'-24' diameters.
• Lakota Legacy Water Storage Tanks Heavy-duty steel water storage tanks ranging from 3,000 to over 100,000 gallons with 30-degree sloped roofs, rust and fire resistant, for rainwater harvesting, fire prevention, and municipal water storage.

Quantifiable outcome

• Energy savings up to 50% when running Guardian GMS fans in automatic according to suggested set points
• +3 more outcomes

Named customers8 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Four partnerships are on record, tiered core.

• Lakota Tank CompanycoreChannel Partner/ Reseller/ DistributorAuthorized Sioux Steel dealer specializing in custom Lakota Legacy water storage tanks. Provides custom sizing and coloring options for Sioux Steel tank products.
• DSH SystemscoreTechnology or IntegrationManufacturers Dust Suppression Hopper technology sold through Sioux Steel. Reduces total dust by up to 98% during loading operations for grain, fertilizer, and other dry goods.
• Authorized Dealers (US & Canada)coreChannel Partner/ Reseller/ DistributorNetwork of authorized dealers across the United States and Canada. Dealers offer product sales, installation support, and local customer service. Territory managers and reps support dealer network.
• Koyker ManufacturingcoreOEM/ Whitelabel/ Licensing PartnerKoyker Manufacturing is a division of Sioux Steel Company that manufactures front-end loaders and attachments for tractors. Products include Legend Loaders, PRO Loaders, and Koyker Loaders.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Chief Industries: Chief Industries manufactures grain storage bins, steel buildings (Chief Buildings), and livestock equipment. Highly comparable to Sioux Steel's portfolio of grain bins plus Pro-Tec fabric-covered and steel buildings, serving overlapping agricultural and commercial customers.
• Meridian Manufacturing: Meridian Manufacturing produces grain bins, hopper bins, augers, and material handling equipment with strong dealer presence across the US and Canada. Directly competes with Sioux Steel in smooth-walled bins, hopper bins, and grain handling accessories.
• Brock Grain Systems (CTB, Inc.): Brock Grain Systems, a division of CTB Inc., manufactures grain bins, conditioning, and material handling systems. Direct competitor to Sioux Steel across commercial and on-farm grain storage with comparable product breadth and dealer-based distribution.
• Sukup Manufacturing: Sukup Manufacturing is a family-owned Iowa-based manufacturer of grain bins, dryers, material handling, and steel buildings. Directly competes with Sioux Steel in commercial/farm grain storage, aeration, and handling equipment with overlapping dealer networks across the US Midwest.
• Westeel (Division of Vicwest): Westeel is a Canadian manufacturer of grain bins, storage systems, and steel buildings. Direct competitor to Sioux Steel in the Canadian and northern US markets with comparable product categories across on-farm and commercial grain storage.
• GSI (Grain Storage, Inc.): GSI is one of the largest global manufacturers of grain bins, dryers, and material handling equipment, owned by AGCO Corporation. Directly competes with Sioux Steel across commercial/farm bins, sweeps, and grain handling systems for the same cooperative and commercial elevator customers.
• Behlen Mfg. Co. Behlen is a Nebraska-based manufacturer of grain storage bins, building systems, and livestock equipment. Direct peer to Sioux Steel with similar Midwest dealer network and overlapping product categories in bins, buildings, and animal handling.

Broad incumbents

• Lindsay Corporation: Lindsay Corporation manufactures Zimmatic irrigation systems and infrastructure products serving large commercial agriculture. Comparable to Sioux Steel in serving large commercial farm operators with capital equipment, though focused on irrigation rather than grain storage.
• Valmont Industries: Valmont Industries is a diversified infrastructure and agriculture manufacturer, including Valley Irrigation and engineered support structures. Adjacent competitor to Sioux Steel in agricultural infrastructure with overlapping customer base of large-scale farmers.
• AGCO Corporation: AGCO Corporation owns GSI and is a global agricultural equipment OEM (Massey Ferguson, Fendt, Valtra). It competes broadly with Sioux Steel through its grain systems division and dwarfing R&D and dealer infrastructure.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

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Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

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

M&A1 record

Investments

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

Frequently asked questions about Sioux Steel Company