Iwr North America, Llc

What Iwr North America, Llc does

IWR North America, LLC is a full-service specialty trade contractor for building enclosure systems, founded in 1895 in St. Louis, MO and operating today as a subsidiary of MHS Legacy Group, Inc. The company designs, fabricates, and installs architectural and industrial exteriors — including insulated foam panel systems, curtain wall systems, single-skin and Style-Rib/Super-Rib metal panels, ACM cladding, glass and glazing systems, and commercial roofing and mechanical insulation — for healthcare, data infrastructure, semiconductor manufacturing, food processing, professional sports, government, and commercial real estate projects across the United States. Its core technology differentiators are specialized envelope expertise for airtight/watertight sensitive facilities (data centers, semiconductor fabs, cold storage), self-performing installation via a union craft workforce with preferred signatory status, and vertically integrated preconstruction, design/engineering (BIM/VDC/3D modeling), off-site fabrication, and installation capabilities.

IWR generates revenue as a project-based specialty trade contractor (subcontractor) that engages general contractors through competitive bidding, design-assist, and post-award interview processes. Contract values disclosed range from approximately $3.3M (City of Waco Police Tower reskinning) to $24.3M (Forsyth Pointe mixed-use development) and $23.3M (Meta Huntsville data center campus), with services spanning preconstruction planning through fabrication and self-performing installation. GTM is enterprise field sales — relationship-driven, with documented multi-project repeat partnerships with GCs such as Holder Construction, McCarthy Building Companies, Alberici Constructors, Gray Construction, Kraus Anderson, and Austin Commercial. The company operates from a St. Louis headquarters with regional offices in Dallas, TX (opened 2019) and Chicago, IL (opened 2024), supports a workforce of 501–1,000 employees, and has earned recent industry recognition including the AGC of Missouri Keystone Award and ENR Midwest Best Project (both 2025).

Name

Iwr North America, Llc

Legal name

IWR North America, LLC

Website

https://iwr1895.com

Company type

Private

Founded year

1895

Operating status

Operating

Headcount range

501–1,000 employees

Short description

IWR North America is a 130-year-old, St. Louis-based specialty trade contractor that designs, fabricates, and installs building enclosure systems (insulated panels, curtain walls, metal cladding, glazing) for healthcare, data center, semiconductor, food processing, sports, government, and commercial projects across the United States, operating as a self-performing union subcontractor to general contractors.

Ownership category

akta.pro rank

Product category

Building Enclosure Contracting

NAICS

Plate Work and Fabricated Structural Product Manufacturing (33231)

SIC

Miscellaneous Fabricated Metal Products (3490)

akta.pro primary industry

Sheet Metal & Ductwork Contracting (IMAFALAH)

akta.pro secondary industry

Steel Plate, Sections & Welded Assemblies (IMADACAD)

Keywords

• Building enclosure systems
• Curtain wall installation
• Metal panel systems
• Facade construction services
• Specialty trade contracting

Headquarters

HQ city

St Louis

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Specialty Trade Contracting: IWR generates revenue as a specialty trade contractor providing building enclosure services. Revenue is project-based, earned through contracts with general contractors on construction projects. Services span preconstruction, design-assist, fabrication, and installation. Contract values range from approximately $3.3M (Waco Police Tower) to $23.3M (Meta Data Center).

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

IWR North America, LLC is a full-service specialty trade contractor providing design, fabrication, and self-performing installation of architectural and industrial building enclosure systems. The company delivers insulated foam panel systems, curtain wall systems, metal panel systems, and glass and glazing solutions, complemented by integrated preconstruction, design-assist, off-site fabrication, and installation services. It serves general contractors on commercial, healthcare, data center, semiconductor, sports, and government construction projects nationwide.

Product overview

IWR North America, LLC is a full-service building enclosure contractor offering a comprehensive portfolio of construction services and building envelope solutions. The company provides insulated foam panel systems, curtain wall systems, metal panel systems, and glass & glazing systems as its core building envelope products. These are complemented by integrated services including preconstruction planning, design and engineering (with virtual design, BIM, and structural engineering), off-site fabrication, and self-performing installation using skilled union labor. The company's expertise spans commercial roofing, industrial siding, and mechanical insulation services, serving sectors including healthcare, technology/data infrastructure, industrial manufacturing, sports facilities, and government/public safety buildings.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• $56,000 estimated annual energy savings for City of Waco Police Tower reskinning
• +2 more outcomes

Named customers8 records

Segments3 records

Ideal customer profiles1 record

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Nine partnerships are on record, tiered core and supporting.

• Austin CommercialcoreImplementation/ SI/ Consulting PartnerAustin Commercial served as the general contractor for Texas Instruments' Sherman, Texas wafer fabrication plant where IWR provided building enclosure services. Austin Commercial provided a testimonial praising IWR's honesty, reliability, proactivity, and collaborative problem-solving approach.
• Holder ConstructioncoreImplementation/ SI/ Consulting PartnerHolder Construction was the general contractor for Meta's Huntsville, Alabama data center campus. IWR and Holder have partnered on multiple projects in the Huntsville area over the years, building a shared understanding of expectations and communication.
• Gray ConstructioncoreImplementation/ SI/ Consulting PartnerGray Construction was the general contractor for American Heartland Packaging's Project Groot facility in Wright City, MO. IWR navigated challenges through meticulous planning and clear communication with Gray while self-performing union labor.
• McCarthy Building CompaniescoreImplementation/ SI/ Consulting PartnerMcCarthy Building Companies was the general contractor for Forsyth Pointe mixed-use development in Clayton, MO. IWR completed $24.3M scope on time and within budget, earning McCarthy's praise for responsiveness and close coordination.
• Alberici ConstructorscoreImplementation/ SI/ Consulting PartnerAlberici Constructors was the general contractor for BJC Institute of Health vertical expansion at Washington University. Alberici senior project manager praised IWR's preconstruction coordination and problem-solving.
• Kraus AndersoncoreImplementation/ SI/ Consulting PartnerKraus Anderson was the construction manager for Minnesota Vikings Training Facility. IWR collaborated closely with Kraus Anderson and Crawford Architects to execute the complex facade design.
• Crawford ArchitectscoreImplementation/ SI/ Consulting PartnerCrawford Architects was the design firm for Minnesota Vikings Training Facility. IWR collaborated closely with Kraus Anderson and Crawford Architects from preconstruction through final installation to realize the design vision.
• Accura SystemssupportingTechnology or IntegrationAccura Systems was the Texas-based fabricator supplying the custom carrier system for Waco Police Tower reskinning. Their fast turnaround enabled IWR to successfully implement field solutions when conditions evolved.
• ViraconsupportingTechnology or IntegrationViracon supplied 41,000+ square feet of one-inch insulated glazing for Waco Police Tower project. Key material supplier enabling the facade transformation.

Scale indicators7 records

Recent moves14 records

Expansion highlights6 records

Direct peers

• Western Specialty Contractors: Western Specialty Contractors serves the building envelope through facade, roofing, waterproofing, and concrete restoration work. Its specialty-trade focus and work on occupied and renovation projects make it comparable to IWR.
• Harmon: Harmon delivers building-envelope solutions spanning design, engineering, fabrication, and installation, with particular strength in curtain wall and glazed systems. Its delivery model and target customers closely overlap IWR's architectural enclosure work.
• Flynn Group of Companies: Flynn provides design, engineering, fabrication, and installation services for building envelopes and other specialty building systems. It is closely comparable to IWR in serving general contractors through complex, project-based construction scopes.
• KPost Company: KPost provides roofing, waterproofing, building-envelope, and exterior restoration services. It is relevant to IWR because both companies execute complex exterior scopes for general contractors and building owners.
• Kinzler Construction Services: Kinzler is a specialty trade contractor focused on insulation, metal framing, drywall, acoustical, and related building systems. It is a relevant regional-scale comparator to IWR's self-performed building-envelope and insulation capabilities.
• Performance Contracting Group: Performance Contracting Group is a specialty contractor providing insulation, drywall, exterior systems, and related building-envelope services. It compares with IWR through its self-performed trade capabilities and work on large commercial and industrial projects.

Broad incumbents

• Kawneer: Kawneer offers aluminum windows, doors, entrances, curtain walls, and other architectural building products. Its facade portfolio is directly adjacent to IWR's curtain wall, metal panel, and glazing work.
• Morin: Morin provides architectural metal wall and roof panel systems for industrial and commercial buildings. It is comparable to IWR's metal-panel product line and serves similar data-center, manufacturing, and institutional construction demand.
• YKK AP America: YKK AP America supplies architectural aluminum products, curtain walls, windows, entrances, and related building-envelope systems. It compares with IWR around high-performance facade systems, although it is more product- and manufacturing-led.
• Oldcastle BuildingEnvelope: Oldcastle BuildingEnvelope manufactures and supplies a broad portfolio of architectural glass, glazing, curtain wall, storefront, and metal systems. It is a broad incumbent whose products overlap substantially with IWR's architectural material and installation scope.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/iwr

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 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 Iwr North America, Llc