K&K Iron Works

Structural Steel Fabricationkkironworks.com

K&K Iron Works is a family-owned, AISC certified structural steel and miscellaneous metal fabricator and erector in McCook, Illinois, delivering design, fabrication, and installation services to general contractors and institutional clients across the Chicago and Midwest markets.

Company typePrivate
Founded1977
HeadquartersMccook, United States
Headcount101–250
GTM typeB2B
OfferingServices

What K&K Iron Works does

K&K Iron Works LLC is a family-owned structural steel and miscellaneous metal fabrication and erection company headquartered at 5100 Lawndale Ave, McCook, Illinois, serving the Greater Chicago area and the broader Midwest. Founded in 1977 by Karl Kulhanek Sr., a Czech immigrant blacksmith, the company operates today under the Jerry Kulhanek family with a staff of 101-250 employees across engineers, draftsmen, construction managers, fabricators, installers, and crane operators. K&K delivers a full-service, single-source workflow spanning in-house design and detailing (CAD and 3D model import), AISC certified fabrication across three specialized facilities (Structural, Stair & Railing, Light Structural & Misc Metals), and AISC certified field erection with in-house rigging and a maintained service truck fleet.

The company's product portfolio centers on four core lines: Structural Steel (office buildings, condominiums, retail, parking structures, educational facilities, spiritual centers, public transportation), Stairs & Railings, Light Structural (canopies, outdoor seating, signage, decorative facings, walkways), and Miscellaneous Metals (custom interior and exterior fabrications). Underlying technology consists of AISC certified fabrication processes, 3D modeling software for direct customer design import, automated CNC fabrication equipment, and a state-of-the-art scheduling program for job coordination. Supporting service modules cover Design & Engineering, Fabrication, and Erection Services.

The revenue model is project-based, with one-time contracts awarded through competitive bidding and direct sales engagement with general contractors and construction managers. K&K serves enterprise customers across commercial construction (primary), government, healthcare, K-12, higher education, spiritual centers, senior living, and industrial end-markets. Named customers include tier-one Chicago-area general contractors such as Clayco, Power Construction, Leopardo, Skender, Gilbane, Kiewit, F.H. Paschen, Pepper Construction, Walsh Group, Bulley & Andrews, and W.E. O'Neil, alongside institutional end-clients including the University of Chicago, Illinois Institute of Technology, Chicago Transit Authority, Argonne National Laboratory, and Shedd Aquarium. Go-to-market is sales-led, relying on a dedicated sales team and estimators with a website project gallery as the primary marketing channel; no digital, subscription, or recurring revenue model is disclosed.

K&K Iron Works firmographics

Firmographics

Name: K&K Iron Works
Legal name: K&K Iron Works LLC
Website: https://kkironworks.com
Company type: Private
Founded year: 1977
Operating status: Operating
Headcount range: 101–250 employees
Short description: K&K Iron Works is a family-owned, AISC certified structural steel and miscellaneous metal fabricator and erector in McCook, Illinois, delivering design, fabrication, and installation services to general contractors and institutional clients across the Chicago and Midwest markets.
Ownership category
akta.pro rank

K&K Iron Works industry classification

Industry

Product category: Structural Steel Fabrication
NAICS: Ornamental and Architectural Metal Work Manufacturing (332323), Ornamental and Architectural Metal Products Manufacturing (33232), All Other Fabricated Metal Product Manufacturing (33299)
SIC: Miscellaneous Fabricated Metal Products (3490), Sheet Metal Work (3444)
akta.pro primary industry: Architectural & Miscellaneous Metals (Stairs, Railings, Ladders) (IMADACAE)
akta.pro secondary industry: Metal Building Systems (PEMB) (IMADACAB)

Keywords

Structural steel fabrication
Metal fabrication services
Steel erection services
Miscellaneous metals fabrication
Design engineering services

Where K&K Iron Works is headquartered

Location

Headquarters

HQ city: Mccook
HQ country: United States
HQ region: North America

Offices1 record

Markets served

K&K Iron Works business model

Business model

GTM type: B2B
Offering type: Services
Cost components: Personnel, Supply Chain, Operations, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

Structural Steel Fabrication and Erection: Full-service structural steel fabrication and erection services for commercial construction projects
Stairs and Railings: Design, fabrication and installation of stairs and railings
Miscellaneous Metals: Custom interior and exterior miscellaneous metal projects of any size and scale
Design and Engineering Services: In-house design and detailing services for structural and miscellaneous metal projects

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

K&K Iron Works product offering

Product offering

Core offering

K&K Iron Works is a family-owned structural steel and miscellaneous metal fabrication and erection company providing a single-source solution from design through fabrication to installation. Operating from three AISC certified facilities in McCook, Illinois, the company fabricates and erects structural steel, stairs and railings, light structural elements, and miscellaneous metals for commercial, government, healthcare, educational, and industrial construction projects across the Greater Chicago area and Midwest.

Product overview

K&K Iron Works is a family-owned structural steel and miscellaneous metal fabrication and installation company operating as a single-source solution from design through fabrication to erection. The company's product portfolio centers on four core product lines: Structural Steel, Stairs & Railings, Light Structural, and Miscellaneous Metals. These products are supported by three integrated service modules: Design & Engineering Services (providing in-house CAD-based design and 3D modeling), Fabrication Services (AISC certified cutting, bending, and assembly), and Erection Services (AISC certified field crews with in-house rigging). The company operates three distinct facilities to deliver these products and services with maximum efficiency.

Differentiator

Problem solved

Functional benefit

Products and services

Structural Steel Structural steel fabrication and erection services for office buildings, condominiums, retail, parking structures, educational facilities, churches, temples, public transportation, and other commercial and institutional construction projects, delivered to general contractors in the Greater Chicago and Midwest region.
Stairs & Railings Custom staircase and railing fabrication and installation services, ranging from large commercial projects to smaller installations, produced at K&K's dedicated Stair & Railing facility.
Light Structural Light structural metal fabrication including canopies, outdoor seating, signage structures, decorative facings, and walkways, produced at K&K's Light Structural & Miscellaneous Metals facility.
Miscellaneous Metals Custom interior and exterior miscellaneous metal projects of any size and scale, including seating, decorative installations, and specialty architectural metalwork.
Design & Engineering Services In-house design and detailing services for structural and miscellaneous metal projects, including CAD-based design, detailed fabrication drawings, and 3D modeling that imports customer designs into K&K's systems to save time and money.
Fabrication Services AISC certified metal fabrication services including cutting, bending, and assembly of structural and miscellaneous metal structures, executed at a large AISC certified facility scalable to handle projects of any size.
Erection Services AISC certified field erection services for structural steel, stairs, railings, and miscellaneous metals projects, delivered by in-house rigging and erection crews with 35+ years of experience and supported by a maintained fleet of service trucks.

Companies that use K&K Iron Works

Customer profile

Named customers17 records

Segments8 records

Ideal customer profiles2 records

K&K Iron Works technology and API

Technology

Technology focussed No

API detail

Has API: No
API docs
API detail

Core technology

AI maturity

App detail

Feature5 records

K&K Iron Works partnerships and signals

Strategic signal

Scale indicators4 records

Recent moves5 records

Expansion highlights4 records

K&K Iron Works competitors and assessment

Company assessment

Direct peers

Schuff Steel (Quanta Services): One of the largest structural steel fabricators and erectors in the US, operating nationally with AISC-certified fabrication and field erection capabilities — directly comparable to K&K's full-service model but at significantly greater scale and geographic breadth.
Banker Steel Company: Structural steel fabricator serving commercial, healthcare, and institutional construction across the Eastern US. Comparable AISC-certified fabrication operation with similar design-detailing-fabricate-erect value chain to K&K Iron Works.
Hillsdale Fabricators: Michigan-based structural steel fabricator serving commercial, industrial, and institutional customers in the Midwest. Comparable product set (structural steel plus miscellaneous metals) and customer type (general contractors).
LeJeune Steel Company: Minneapolis-headquartered structural steel and miscellaneous metals fabricator with AISC certification and full design-build-erase capabilities. Comparable to K&K on Midwest regional focus and single-source fabrication-and-installation service model.
SME Steel Contractors: Structural steel erection and fabrication contractor known for complex high-profile commercial and sports venue projects; comparable AISC-certified field crews and structural steel focus make it a direct competitor for large GC relationships.
Zalk Josephs Fabricators: Wisconsin-based structural steel fabricator serving the Midwest commercial and industrial construction market. Direct comparable given shared regional geography and similar structural/miscellaneous metals product mix.

Broad incumbents

Commercial Metals Company (CMC): Vertically integrated steel manufacturer with fabrication, rebar, and structural steel operations across the US. Comparable product mix through CMC Steel Fabricators and related divisions, though at much larger scale than K&K's regional focus.
Canam Steel (Canam Group): Large North American steel fabricator with extensive US footprint producing steel joists, joist girders, and fabricated structural steel. Comparable product mix (structural and miscellaneous metals) but operates at meaningfully larger scale and broader geography.
Nucor Corporation: Largest US steel producer with downstream fabrication operations (Nucor Buildings Group, Vulcraft/Verco). Adjacent comparator given vertically integrated presence in structural steel supply and pre-engineered metal buildings.

Emerging players

Keuka Studios: Architectural metalwork studio specializing in custom stairs, railings, and ornamental metal for commercial and institutional projects. Direct comparable for K&K's stairs & railings product line but more design-forward and project-niche.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

K&K Iron Works compliance and trust

Trust signal

Compliance2 records

K&K Iron Works financial estimates

Financial estimate

Revenue estimate

Valuation estimate

K&K Iron Works leadership team

Management profile

Number of profiles

Profiles1 record

K&K Iron Works funding detail

Funding detail

Funding overview

Funding rounds

Investors

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

K&K Iron Works M&A and investment

M&A and investment

M&A

Investments

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

Frequently asked questions about K&K Iron Works

What does K&K Iron Works do?

Is K&K Iron Works a public or private company?

K&K Iron Works is a private company. It is classified as family owned and is currently operating.

When was K&K Iron Works founded?

K&K Iron Works was founded in 1977. It employs 101 to 250 people.

Where is K&K Iron Works based?

K&K Iron Works is headquartered in Mccook, United States, in the North America region.

How does K&K Iron Works make money?

Four revenue lines are on record. Structural Steel Fabrication and Erection is the primary driver. The others are stairs and Railings, miscellaneous Metals and design and Engineering Services.

Who are K&K Iron Works's main competitors?

Direct peers on record are Schuff Steel (Quanta Services), Banker Steel Company, Hillsdale Fabricators, LeJeune Steel Company, SME Steel Contractors and Zalk Josephs Fabricators. Broad incumbents are Commercial Metals Company (CMC), Canam Steel (Canam Group) and Nucor Corporation. Keuka Studios is listed as an emerging player.

Does K&K Iron Works have an API?

No public API is recorded for K&K Iron Works.

What industry is K&K Iron Works in?

K&K Iron Works's product category is Structural Steel Fabrication. Its primary akta.pro industry code is IMADACAE, Architectural & Miscellaneous Metals (Stairs, Railings, Ladders), with a secondary code of IMADACAB, Metal Building Systems (PEMB). Its NAICS code is 332323 and its SIC code is 3490.