Iwr North America, Llc
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.
- Company typePrivate
- Founded1895
- HeadquartersSt Louis, United States
- Headcount501–1,000
- GTM typeB2B
- OfferingServices
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).
Iwr North America, Llc firmographics
Firmographics- 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
Iwr North America, Llc industry classification
Industry- 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
Where Iwr North America, Llc is headquartered
LocationHeadquarters
- HQ city
- St Louis
- HQ country
- United States
- HQ region
- North America
Offices3 records
Markets served
Iwr North America, Llc business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Supply Chain, Operations, Technology or R&D, Marketing or Sales
Revenue model
- 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
Iwr North America, Llc product offering
Product offeringCore 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
Companies that use Iwr North America, Llc
Customer profileNamed customers8 records
Segments3 records
Ideal customer profiles1 record
Iwr North America, Llc technology and API
TechnologyAPI detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Iwr North America, Llc partnerships and signals
Strategic signalPartnerships
Nine partnerships are on record, tiered core and supporting.
- Austin CommercialcoreAustin 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 ConstructioncoreHolder 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 ConstructioncoreGray 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 CompaniescoreMcCarthy 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 ConstructorscoreAlberici 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 AndersoncoreKraus 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 ArchitectscoreCrawford 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 SystemssupportingAccura 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.
- ViraconsupportingViracon 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
Iwr North America, Llc competitors and assessment
Company assessmentDirect 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
Iwr North America, Llc social profiles
Digital presenceIwr North America, Llc compliance and trust
Trust signalCompliance2 records
Iwr North America, Llc financial estimates
Financial estimateRevenue estimate
Valuation estimate
Iwr North America, Llc leadership team
Management profileNumber of profiles
Profiles9 records
Iwr North America, Llc funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Iwr North America, Llc M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Iwr North America, Llc
What does Iwr North America, Llc do?
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.
Is Iwr North America, Llc a public or private company?
Iwr North America, Llc is a private company. It is classified as management employee owned and is currently operating.
When was Iwr North America, Llc founded?
Iwr North America, Llc was founded in 1895. It employs 501 to 1,000 people.
Where is Iwr North America, Llc based?
Iwr North America, Llc is headquartered in St Louis, United States, in the North America region.
How does Iwr North America, Llc make money?
One revenue line is on record: specialty Trade Contracting.
Who are Iwr North America, Llc's main competitors?
Direct peers on record are Western Specialty Contractors, Harmon, Flynn Group of Companies, KPost Company, Kinzler Construction Services and Performance Contracting Group. Broad incumbents are Kawneer, Morin, YKK AP America and Oldcastle BuildingEnvelope.
Does Iwr North America, Llc have an API?
No public API is recorded for Iwr North America, Llc.
What industry is Iwr North America, Llc in?
Iwr North America, Llc's product category is Building Enclosure Contracting. Its primary akta.pro industry code is IMAFALAH, Sheet Metal & Ductwork Contracting, with a secondary code of IMADACAD, Steel Plate, Sections & Welded Assemblies. Its NAICS code is 33231 and its SIC code is 3490.