Hoffmann

What Hoffmann does

Hoffmann, Inc. is a fourth-generation, family-owned industrial design-build firm headquartered in Muscatine, Iowa, operating since 1914. The company specializes in the design, engineering, fabrication, and construction of cast-in-place reinforced concrete silos, concrete chimneys, steel stacks, and related bulk material handling equipment for industrial customers across the continental United States. Its core technical asset is a proprietary jumpform construction system that supports silos and chimneys ranging from 9ft to 112ft in diameter, complemented by a 70,000+ sq. ft. in-house fabrication facility with AWS-certified welders and barge, rail, and truck shipping access via the Mississippi River.

The company's product portfolio spans three integrated solution lines: Storage (concrete silos, steel bins via a Sioux Steel partnership, hopper tanks, engineered fabric hoop buildings, and bunker walls); Equipment (custom conveyors, bucket elevators, towers, catwalks, and dust suppression hoppers); and Stacks and Chimneys (ASME STS-1 compliant steel stacks and jumpform concrete chimneys). Supporting services include engineering and design, inspections and repairs to ASCE standards, and millwright/industrial installation work. The company reports having built over 600 silos nationwide and that approximately 50% of its business comes from repeat customers, with some relationships exceeding 30 years.

Hoffmann operates through direct project-based sales to enterprise industrial customers in power and utilities, cement, grain and agriculture, mining, and bulk commodity processing. Pricing is custom, quote-based, and project-specific, with no public pricing tiers. The company is privately held with no institutional funding, operating through four divisions (Hoffmann Storage, Silver Hawk Steel Fabrication, Airoflex Equipment, and Wolf Material Handling Systems) and currently led by fourth-generation owner and President Kristin Lee. Revenue is not publicly disclosed.

Name

Hoffmann

Legal name

Hoffmann, Inc.

Website

https://hoffmanninc.com

Company type

Private

Founded year

1914

Operating status

Operating

Headcount range

101–250 employees

Short description

Hoffmann, Inc. is a fourth-generation, family-owned industrial design-build firm based in Muscatine, Iowa, specializing in jumpform concrete silos, concrete chimneys, steel stacks, and bulk material handling equipment for enterprise customers in power, cement, grain, and mining across the continental United States.

Ownership category

akta.pro rank

Product category

Industrial Storage & Infrastructure Construction

NAICS

Structural Steel and Precast Concrete Contractors (238120), Fabricated Structural Metal Manufacturing (332312), Architectural and Structural Metals Manufacturing (3323)

SIC

Fabricated Structural Metal Products (3440), Sheet Metal Work (3444)

akta.pro primary industry

Steel Plate, Sections & Welded Assemblies (IMADACAD)

akta.pro secondary industries

Sheet Metal & Ductwork Contracting (IMAFALAH), Modular/Offsite General Contracting & Installation (IMAFAAAK)

Keywords

• Industrial silo construction
• Concrete chimneys stacks
• Bulk storage systems
• Material handling equipment
• Engineered steel bins

Headquarters

HQ city

Muscatine

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Industrial Storage Systems: Design, engineering, and construction of reinforced concrete silos, steel bins, hop buildings, bunker walls, and tanks for storing industrial bulk materials. Revenue is generated through project-based contracts for new construction projects.
2. Stacks & Chimneys: Design, fabrication, and construction of concrete chimneys and steel stacks for industrial applications, including full-service from design through installation.
3. Services (Inspections, Engineering, Millwright): Comprehensive inspection services for silos, equipment, and chimneys per ASCE standards; in-house engineering and design services; millwright and industrial services for equipment installation and integration.
4. Equipment Sales: Sales of conveyors, bucket elevators, towers, catwalks, dust hoppers, and related material handling equipment, both standard and custom-engineered.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Hoffmann designs, engineers, fabricates, and constructs cast-in-place reinforced concrete silos, steel storage bins, hopper tanks, hoop (engineered fabric) buildings, bunker walls, concrete chimneys, and steel stacks for industrial customers nationwide. The firm also manufactures and integrates supporting material handling equipment including conveyors, bucket elevators, towers, catwalks, and dust suppression hoppers. Services span inspections, engineering/design, and millwright/industrial installation, with project delivery managed end-to-end under a single contractor model.

Product overview

Hoffmann, Inc. is an Iowa-based design-build firm specializing in industrial storage and infrastructure solutions since 1914. The company operates as a unified platform offering three core product categories: Storage Solutions (concrete silos, steel bins, hopper tanks, engineered fabric buildings/hoop buildings, and bunker walls), Equipment (conveyors, bucket elevators, towers, catwalks, and dust suppression systems), and Stacks & Chimneys (concrete chimneys and steel stacks). These products are complemented by comprehensive services including inspections, engineering/design, and millwright/industrial services. The company also offers digital tools such as volume estimators to support project planning.

Differentiator

Problem solved

Functional benefit

Brands

• Hoffmann Storage: Storage solutions division of Hoffmann Group
• Silver Hawk Steel Fabrication
• Airoflex Equipment
• Wolf Material Handling Systems

Products and services

• Concrete Silos Jumpform and slipform cast-in-place reinforced concrete storage silos with diameters from 9ft to 112ft, designed for storing fly ash, cement, coal, grain, biomass, and industrial minerals. The company has built over 600 silos nationwide.
• Steel Bins Commercial steel storage bins manufactured in partnership with Sioux Steel Company, available in diameters from 36ft to 132ft with capacities ranging from approximately 34,000 to 1,022,000 bushels for grain and free-flowing materials storage.
• Engineered Fabric Buildings (Hoop Buildings) USA-manufactured engineered fabric buildings available in two series: Pro-Tec Sentry (40-180ft widths) and Single Tube (24-36ft widths), used for grain storage, livestock, hay, and equipment storage with capacities exceeding 4 million bushels.
• Hopper Tanks Heavy-duty hopper bins with capacities ranging from 4,300 to 50,000 bushels, available in diameters from 15ft to 36ft, with 45deg and 60deg hopper cones for loading, working, and storing grain and bulk materials in commercial facilities.
• Bunker Walls Temporary grain storage solution featuring galvanized steel walls (G-90, 4ft and 6ft heights, 10ft sections) with axial or centrifugal fan aeration systems, configurable into oblong forms with durable covers and internal strapping systems.
• Conveyors & Bucket Elevators Custom-designed and standard bulk material handling systems including belt conveyors, chain conveyors, screw conveyors, and bucket elevators specialized in heavy-duty applications for coal, fertilizer, pellets, and other materials, with seamless integration capabilities for existing silos and processing equipment.
• Towers & Catwalks Custom-engineered support structures for silos, steel bins, and material handling equipment, available in standard and custom options optimized for load capacity, wind/seismic resistance, and integration with existing systems, with secure ladders, platforms, and fall protection.
• Dust Suppression Hopper (DSH) System Dust-free loading hopper system that minimizes dust emissions by up to 98%, installed under feed points for controlled transfer when loading trucks, rail cars, or stockpiles, constructed from polyethylene, Corten/Hardox steel, or stainless steel depending on application.
• Concrete Chimneys Custom cast-in-place reinforced concrete chimneys using jumpform construction with adjustable-diameter form sets (9ft to 110ft), serving power generation, pulp and paper, mineral/chemical, and industrial applications, with various liner material options.
• Steel Stacks Custom-engineered steel stacks with full-service design, engineering, metal fabrication, and site erection meeting ASME STS-1 standards, available in single/dual wall, free-standing/guyed/supported configurations in carbon steel, stainless steel, and weathering steel.
• Inspections & Repairs Comprehensive inspection services for silos, chimneys, and equipment following ASME STS-1 and ASCE standards, including Class I, II, and III inspections for structural integrity assessment, with preventive maintenance services for cleaning, repairs, and coatings.
• Engineering & Design Services In-house professional engineering and design services for concrete silos, industrial chimneys, and steel stacks, including capacity/configuration planning, structural integrity analysis per ACI 313, material flow design, load-out systems, and site layout optimization.
• Millwright / Industrial Services Precision installation and integration of material handling systems including conveyors, bucket elevators, hoppers, chutes, ductwork, and structural steel, with retrofit services for upgrading legacy systems and equipment alignment for smooth material flow.

Named customers7 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

One partnership is on record.

• Sioux Steel CompanycoreChannel Partner/ Reseller/ DistributorHoffmann has a solid partnership with Sioux Steel Company for steel bin solutions. As a Sioux Steel Company partner, they deliver high-quality, affordable steel storage solutions. The partnership allows Hoffmann to offer both custom and standard steel bin options to meet various customer needs and budgets.

Scale indicators4 records

Recent moves9 records

Expansion highlights5 records

Direct peers

• Henges Industries: Specialty contractor focused on industrial chimneys, stacks, and silos with related inspection services. Direct competitor in the concrete chimney / steel stack construction space Hoffmann serves.
• International Chimney Corporation: Specialty contractor for industrial chimneys, stacks, and silos including inspection, repair, and demolition. Directly comparable in industrial chimney/stack construction and inspection services to Hoffmann's stacks & chimneys and inspection divisions.
• CST Industries (CST Storage): Largest North American manufacturer of bolted and welded storage tanks and concrete silos for grain, water, and industrial applications. Directly comparable to Hoffmann's concrete silo and steel bin business and competes for the same industrial bulk storage RFPs.
• Brock Grain Systems: Manufacturer of grain storage bins, dryers, and material handling equipment serving commercial and on-farm grain customers. Directly comparable in steel bin and material handling equipment offerings to Hoffmann's storage and equipment business.
• Sioux Steel Company: Manufacturer of steel storage bins and grain handling systems. Hoffmann is an active channel partner for Sioux Steel bins, and the two are directly comparable in steel bin and grain storage offerings.
• Nelson Industrial Services: Industrial chimney and stack construction, maintenance, and inspection services. Comparable in industrial stack/chimney installation and recurring inspection revenue to Hoffmann's stacks & chimneys and inspection business lines.
• Sukup Manufacturing Co. Family-owned Iowa-based manufacturer of grain bins, dryers, material handling, and steel buildings. Comparable in product portfolio (grain storage, handling equipment) and target customer (grain cooperatives, farms) to Hoffmann's storage and equipment divisions.
• T.E. Ibberson Company: Design-build contractor for concrete grain elevators, storage silos, and industrial structures. Direct comparable in slipform/jumpform concrete silo construction for grain and industrial customers.

Broad incumbents

• Bühler Group: Global industrial plant and equipment supplier for grain processing, feed, and bulk material handling. Overlaps with Hoffmann in bulk material handling equipment and grain storage solutions, but operates at much larger global scale across food and feed value chains.
• Hamon: Global engineering and construction firm specializing in cooling systems, chimneys, and air quality control for power and industrial customers. Comparable in industrial concrete chimneys and flue gas infrastructure, but at much larger global scale than Hoffmann.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/HoffmannInc
• LinkedInlinkedin.com/company/hoffmann-inc

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

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 Hoffmann