Swirnow Building Systems
Swirnow Building Systems supplies proprietary structural and architectural building systems — including Hambro® composite floors, NeaCera® terra-cotta cladding, Energywalls™, and Ecomboframe® — to developers, builders, and architects for multi-unit residential, commercial, retail, and institutional projects across the United States.
- Company typePrivate
- Founded1970
- HeadquartersBaltimore, United States
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What Swirnow Building Systems does
Swirnow Building Systems is a privately-held Baltimore-based provider of structural and architectural building solutions founded around 1970. The company sells a portfolio of branded and proprietary systems through two wholly-owned operating subsidiaries: Swirnow Structures LLC, which is the first U.S. licensee of the Hambro® D500 composite steel joist and concrete floor system (held since 1972), and Avenere Cladding LLC, which supplies NeaCera® engineered terra-cotta rainscreen cladding and other ventilated façade systems. Other proprietary offerings include Energywalls™ (light gauge metal stud load bearing structural walls, pioneered in 1978), Energypanels™ (prefabricated curtain walls), Ecomboframe® (a patented superstructure system weighing roughly half of conventional concrete buildings), and VerdeX® acoustical underlayment.
The company serves multi-unit residential, commercial, retail, and institutional construction projects for developers, builders, and architectural firms. Named customers include Toll Brothers, Erickson Communities, Brightview Senior Living, Whiting-Turner, AECOM, HKS, Smith Group, and Populous. Distribution is split between a 30+ dealer network (for Hambro floors) and direct sales representatives covering territories such as Virginia. Pricing is project-based and not publicly disclosed, consistent with quote-driven construction-industry norms.
Revenue mechanics are dominated by hardware sales of building systems, with design-assistance and technical support from concept through completion as a complementary value-add. Headcount of 11–50 employees and an average tenure of 14 years suggest a small, highly tenured technical sales and engineering organization operating as the first US Hambro licensee and an early mover in terra-cotta cladding integration, with worldwide patents on Ecomboframe as the principal intangible differentiator.
Swirnow Building Systems firmographics
Firmographics- Name
- Swirnow Building Systems
- Legal name
- Swirnow Building Systems
- Website
- https://swirnow.com
- Company type
- Private
- Founded year
- 1970
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Swirnow Building Systems supplies proprietary structural and architectural building systems — including Hambro® composite floors, NeaCera® terra-cotta cladding, Energywalls™, and Ecomboframe® — to developers, builders, and architects for multi-unit residential, commercial, retail, and institutional projects across the United States.
- Ownership category
- akta.pro rank
Swirnow Building Systems industry classification
Industry- Product category
- Structural and Architectural Building Systems
- NAICS
- Foundation, Structure, and Building Exterior Contractors (2381), Nonresidential Building Construction (2362)
- SIC
- Fabricated Structural Metal Products (3440), Prefabricated Metal Buildings & Components (3448)
- akta.pro primary industry
- Facade & Cladding Systems (Rainscreens, Panels, EIFS, Siding) (IMAFAMAB)
Keywords
Where Swirnow Building Systems is headquartered
LocationHeadquarters
- HQ city
- Baltimore
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Swirnow Building Systems business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Personnel, Marketing or Sales, Operations
Revenue model
- Building Materials and Systems Sales: Sale of innovative structural and architectural building solutions including terra-cotta cladding, composite floors, and related building systems to designers, builders, and developers for multi-unit residential, commercial, retail, and institutional projects.
Go-to-market motion1 record
Distribution channels2 records
Marketing channels3 records
Swirnow Building Systems product offering
Product offeringCore offering
Swirnow Building Systems supplies innovative structural and architectural building solutions to designers, builders, and developers across the United States. The company distributes and licenses proprietary systems including composite steel joist and concrete floor systems, terra-cotta rainscreen cladding, light gauge load-bearing metal stud walls, and prefabricated curtain wall systems. Operations are organized through two subsidiaries: Avenere Cladding LLC (ventilated façade systems) and Swirnow Structures LLC (structural floor systems).
Product overview
Swirnow Building Systems offers a portfolio of innovative structural and architectural building solutions for multi-unit residential, commercial, retail, and institutional projects. The company operates two primary divisions: Avenere Cladding LLC (ventilated façade systems) and Swirnow Structures LLC (structural floor systems). The core product suite includes NeaCera® Terra-Cotta Cladding for rainscreen exterior applications, the Hambro® D500 Structural Floor System for composite steel joist and concrete flooring, and VerdeX® Acoustical Underlayment for sound performance. Additional historic and specialized offerings include Energywalls™ (light gauge load-bearing steel stud walls), Energypanels™ (prefabricated curtain walls), and the Ecomboframe® superstructure system. The company also previously introduced Carea® Stone Composite Panels to the U.S. market. Solutions are supported by design assistance and technical expertise from project concept through completion.
Differentiator
Problem solved
Functional benefit
Brands
- NeaCera: Terra-Cotta Rainscreen Cladding system
- Hambro
- VerdeX
- Energywalls
- Energypanels
- Ecomboframe
Products and services
- Hambro D500 Structural Floor System A composite steel joist and concrete floor system delivering a noncombustible floor with superior fire and sound ratings at an affordable price, for multi-unit residential, commercial, retail, and institutional projects.
- NeaCera Terra-Cotta Cladding An engineered terra-cotta rainscreen cladding system developed as an alternative to hollow core terra-cotta systems, providing ventilated façade solutions for commercial and residential buildings.
- Energywalls A light gauge metal stud load-bearing structural wall system used for multi-story construction projects requiring load-bearing exterior walls.
- Ecomboframe Superstructure System A superstructure system using poured-in-place columns, partially precast beams, and the Hambro floor system to create a homogenous monolithic structure weighing approximately half of conventional concrete buildings.
Quantifiable outcome
- Highest performing fire and sound ratings for Hambro floor systems
- +1 more outcomes
Companies that use Swirnow Building Systems
Customer profileNamed customers8 records
Segments4 records
Ideal customer profiles2 records
Swirnow Building Systems technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature7 records
Swirnow Building Systems partnerships and signals
Strategic signalScale indicators3 records
Recent moves6 records
Expansion highlights5 records
Swirnow Building Systems competitors and assessment
Company assessmentDirect peers
- CENTRIA: Manufacturer of metal wall and roof systems, including architectural insulated metal panels and rainscreen cladding for commercial buildings. Directly comparable to Swirnow's NeaCera rainscreen and Avenere Cladding product lines.
- Sto Corp: Producer of exterior wall systems including EIFS, stucco, and rainscreen cladding for commercial and residential construction. Competes directly with Swirnow's Avenere Cladding and NeaCera ventilated facade offerings.
- Trespa: Manufacturer of high-performance architectural cladding panels including rainscreen systems for building exteriors. Directly comparable to NeaCera terra-cotta cladding in use case and ventilated facade positioning.
- Vulcraft (Nucor): Nucor's steel joist and deck division and the largest US producer of open-web steel joists and joist girders. Directly competes with the Hambro composite joist product family in commercial and multi-family floor systems.
- ATAS International: Manufacturer of architectural metal cladding, metal roofing, and rainscreen systems for commercial and institutional buildings. Comparable product portfolio and customer base to Swirnow's architectural cladding business.
- Hambro International: Original licensor of the Hambro D500 Structural Floor System that Swirnow has distributed in the US since 1972. Operates the same composite steel joist and concrete floor technology and is the most directly comparable peer in product and category.
Emerging players
- Siderise: Specialist manufacturer of passive fire protection and acoustic solutions for building envelopes, including rainscreen cavity barriers. Adjacent competitor in the rainscreen and acoustic performance categories where Swirnow also operates.
Broad incumbents
- Owens Corning: Global building materials giant with a substantial building envelope and insulation business. Overlaps with Swirnow's building systems portfolio at a much broader scale and provides a useful incumbent comparable for market sizing.
- NCI Building Systems (Cornerstone Building Brands): Major US manufacturer of metal building components, insulated metal panels, and prefabricated building systems. Comparable to Swirnow's Ecomboframe superstructure and Energypanels prefabricated products at much greater scale.
- Canam Steel Corporation: Large North American fabricator of structural steel components including steel joists, girders, and steel deck. Overlaps with Swirnow's structural floor and framing offerings while operating across a much broader steel construction portfolio.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Swirnow Building Systems financial estimates
Financial estimateRevenue estimate
Valuation estimate
Swirnow Building Systems leadership team
Management profileNumber of profiles
Profiles1 record
Swirnow Building Systems subsidiaries and ownership
Company hierarchySubsidiaries2 records
Swirnow Building Systems funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Swirnow Building Systems 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 Swirnow Building Systems
What does Swirnow Building Systems do?
Swirnow Building Systems supplies innovative structural and architectural building solutions to designers, builders, and developers across the United States. The company distributes and licenses proprietary systems including composite steel joist and concrete floor systems, terra-cotta rainscreen cladding, light gauge load-bearing metal stud walls, and prefabricated curtain wall systems. Operations are organized through two subsidiaries: Avenere Cladding LLC (ventilated façade systems) and Swirnow Structures LLC (structural floor systems).
Is Swirnow Building Systems a public or private company?
Swirnow Building Systems is a private company. It is classified as unknown and is currently operating.
When was Swirnow Building Systems founded?
Swirnow Building Systems was founded in 1970. It employs 11 to 50 people.
Where is Swirnow Building Systems based?
Swirnow Building Systems is headquartered in Baltimore, United States, in the North America region.
How does Swirnow Building Systems make money?
One revenue line is on record: building Materials and Systems Sales.
Who are Swirnow Building Systems's main competitors?
Direct peers on record are CENTRIA, Sto Corp, Trespa, Vulcraft (Nucor), ATAS International and Hambro International. Siderise is listed as an emerging player. Broad incumbents are Owens Corning, NCI Building Systems (Cornerstone Building Brands) and Canam Steel Corporation.
Does Swirnow Building Systems have an API?
No public API is recorded for Swirnow Building Systems.
What industry is Swirnow Building Systems in?
Swirnow Building Systems's product category is Structural and Architectural Building Systems. Its primary akta.pro industry code is IMAFAMAB, Facade & Cladding Systems (Rainscreens, Panels, EIFS, Siding). Its NAICS code is 2381 and its SIC code is 3440.