What Mon-Ray does

Mon-Ray, Inc. is a privately held U.S. manufacturer founded in 1947 that designs and builds high-performance aluminum windows, storm windows, storm doors, and porch enclosures under four product brands: DeVAC (commercial-grade aluminum windows in 400 and 600 Series, with the 600 Series featuring a patented non-structural T-in-the-Box thermal-barrier), Mon-Ray (500 and 600 Series storm windows and 800 Series storm doors), and Glasswalls (porch enclosures with 3-lite glass and full-screen units). Its underlying technology is built on T6 aluminum construction, weather-tight ratchet-action jamb liners, stainless-steel spring-loaded pin-locks, and a unique weep-flap design, with independent lab validation including Florida Product Approval for 190 mph wind loads, no water penetration at 12 PSF, and STC ratings of 40+ (tandem) to 50+ (DeVAC 600 Series). The business operates a corporate and national-sales office in Minneapolis, MN and a manufacturing plant in Osage, IA.

The company monetizes through one-time product sales of custom-manufactured window and door units, with pricing provided via quote rather than published lists. Its go-to-market is a nationwide Authorized Dealer network segmented by product line (DeVAC dealers for commercial, Mon-Ray dealers for residential/light commercial, Glasswalls dealers for porch enclosures), supplemented by direct sales to commercial building owners, contractors, and builders in non-dealer geographies, plus a company-owned residential dealership (Mon-Ray Windows, Doors & More) operating in the greater Minneapolis area since 1947. Customers are segmented across commercial buildings (educational institutions, healthcare, hospitality, government, office buildings requiring high air/water/structural/acoustic standards) and residential homeowners (storm windows, secondary glazing, porch enclosures, historic restoration), with named reference projects spanning University of Florida, Harvard's Sackler Museum, the Wrigley Building, Old North Church, and Rock Island Arsenal.

The revenue model is project-based, dealer-mediated, and channel-driven, with no disclosed subscription, licensing, or recurring-contract component. The company maintains a stated philosophy of "lowest life cycle costing" and supports its specification-driven sales model with technical marketing collateral, project galleries, and a dealer-recruitment funnel via its website. There is no disclosed software, app, or API surface, no AI/ML capability, and no parent company, institutional investor, or M&A history in the input data.

Name

Mon-Ray

Legal name

Mon-Ray, Inc.

Website

https://monray.com

Company type

Private

Founded year

1947

Operating status

Operating

Headcount range

51–100 employees

Short description

Mon-Ray, Inc. is a privately held, 1947-founded Minneapolis-based manufacturer of high-performance aluminum windows, storm windows, storm doors, and Glasswalls porch enclosures, selling via a nationwide Authorized Dealer network and direct channels to commercial buildings and residential homeowners across the United States and Canada.

Ownership category

akta.pro rank

Product category

Aluminum Window and Door Manufacturing

NAICS

Metal Window and Door Manufacturing (332321)

SIC

Glass Products, Made Of Purchased Glass (3231)

akta.pro primary industry

Windows (IMADAIAC)

Keywords

• Aluminum windows manufacturing
• Storm windows
• Storm doors
• Porch enclosures
• Secondary glazing

Headquarters

HQ city

Minneapolis

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Window and Door Product Sales: Mon-Ray generates revenue through the manufacture and sale of high performance aluminum windows and doors. Products include DeVAC aluminum windows, Mon-Ray storm windows, Mon-Ray storm doors, and Glasswalls porch enclosures. Sales occur through Authorized Dealers, direct to commercial building owners, and through the company-owned residential dealership.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels5 records

Core offering

Mon-Ray, Inc. is a U.S. manufacturer of high-performance aluminum window and door products, including the proprietary DeVAC aluminum windows (400 Series and 600 Series with patented T-in-the-Box thermal-barrier), Mon-Ray storm windows (500 and 600 Series), Mon-Ray 800 Series storm doors, and Glasswalls porch enclosures. The company focuses on energy conservation, environmental protection, historic restoration, and sound abatement applications for commercial and residential markets.

Product overview

Mon-Ray, Inc. is a manufacturer of high-performance aluminum window and door products. The product portfolio includes DeVAC aluminum windows (400 Series single frame and 600 Series dual frame with T-in-the-Box thermal-barrier), Mon-Ray storm windows (500 Series for interior/exterior and 600 Series for exterior applications), Mon-Ray 800 Series storm doors (hinged and sliding styles), and Glasswalls porch enclosures. The company also offers custom shapes, miter angles, and muntin bar patterns as add-on options, along with miscellaneous glass panels, inserts, and screens. Products focus on energy conservation, environmental protection, historical restoration, and sound abatement applications.

Differentiator

Problem solved

Functional benefit

Brands

• DeVAC: DeVAC aluminum windows - high performance aluminum windows for commercial and residential use with exceptional air, water, structural and acoustical performance standards. Available in 400 Series (single frame) and 600 Series (dual frame with thermal-barrier).
• Mon-Ray Storm Windows
• Mon-Ray Storm Doors
• Glasswalls

Products and services

• DeVAC 400 Series Aluminum Windows Single frame aluminum windows with exceptional air, water, wind loading and acoustical performance standards. Available as fixed panel, removable panel, horizontal glider, double-hung, hopper, and awning styles. Used for replacement and new construction projects, or as secondary windows in commercial and institutional buildings.
• DeVAC 600 Series Aluminum Windows Dual frame aluminum window with exclusive DeVAC non-structural T-in-the-Box thermal-barrier. Available as fixed panel, removable panel, horizontal glider, and double-hung. Achieves STC ratings exceeding 50 with optional inner frame members. Designed for commercial applications requiring high thermal and acoustical performance.
• Mon-Ray 500 Series Storm Windows Versatile aluminum storm windows ideal for both exterior and interior applications. Available as removable panels, horizontal sliders and double hungs. Constructed of strong T6 aluminum with weather-tight ratchet action jamb liners with automatic ventilation settings every two inches. Used for residential and light commercial secondary glazing.
• Mon-Ray 600 Series Storm Windows Aluminum storm windows for exterior applications with recessed profile design. Available as removable panels, double-hungs, and horizontal gliders. Designed to install to the exterior of interior prime windows for residential and historic restoration applications.
• Mon-Ray 800 Series Storm Doors High performance storm doors available as hinged (swinging) and sliding (patio) styles. Feature unique Slim-Line tubular aluminum frame construction providing maximum viewing area. Available in 1-Lite, self-storing glass/screen combination styles, and various kick panel designs for residential applications.
• Glasswalls Porch Enclosures Unique 3-lite glass and full screen window units designed specifically for year-round porch living. Provides 30% or more ventilation area than ordinary windows and patio doors. Frames are made of preservative-treated clear pine. Targeted at residential homeowners, builders, and remodeling contractors.

Quantifiable outcome

• Windows can account for up to 40% of a building's heat loss during colder months
• +6 more outcomes

Named customers18 records

Segments5 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Scale indicators8 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Kawneer Company: Kawneer is a leading North American manufacturer of commercial aluminum architectural windows, storefronts, and curtain wall systems. It is one of Mon-Ray's most direct competitors in the commercial aluminum window segment, serving similar architects, contractors, and institutional building owners.
• EFCO Corporation: EFCO manufactures high-performance commercial aluminum windows, curtain walls, and entrance systems for institutional, educational, and healthcare facilities—directly comparable to Mon-Ray's DeVAC commercial line in customer base, performance specs, and channel motion.
• Wausau Window and Wall Systems: Wausau Window and Wall Systems produces commercial aluminum windows and window wall systems with an emphasis on energy efficiency, hurricane resistance, and acoustical performance—overlapping directly with Mon-Ray's DeVAC performance positioning in schools, hospitals, and government projects.
• Graham Architectural Products: Graham Architectural Products manufactures commercial aluminum windows, entrances, and storefronts focused on high-performance building envelopes for educational, healthcare, and government facilities—a direct peer to Mon-Ray's DeVAC line in specifications, channels, and target segments.
• TRACO (Crane Architectural): TRACO produces commercial aluminum windows and architectural products serving institutional and commercial construction—directly comparable to Mon-Ray's commercial aluminum window business with similar performance certifications and educational/healthcare/government customer mix.

Broad incumbents

• YKK AP America: YKK AP America manufactures commercial aluminum entrance, storefront, window, and curtain wall systems serving the same architectural specification channel as Mon-Ray. Although larger and broader in portfolio, they overlap directly in commercial aluminum windows and hurricane-impact products.
• Marvin Windows and Doors: Marvin is a premium manufacturer of clad-wood and aluminum windows for residential and light commercial projects including historic restoration. While broader and wood-based, their high-end performance positioning and custom capabilities overlap with Mon-Ray's residential and historic restoration lines.
• Andersen Windows & Doors: Andersen is the largest US window and door manufacturer with deep relationships across residential and commercial channels. Their E-Series and impact-rated lines increasingly compete with Mon-Ray's high-performance and custom-historically-oriented products at scale.

Emerging players

• Quaker Windows & Doors: Quaker manufactures aluminum-clad and vinyl windows for residential and light commercial markets including high-performance and impact-rated products. They are an emerging competitive threat in the secondary glazing/storm window category where Mon-Ray's residential line competes.
• Solar Innovations, Inc. Solar Innovations manufactures custom architectural aluminum windows, doors, skylights, and glass structures including porch/sunroom enclosures. They overlap with Mon-Ray's Glasswalls line and custom-shape offerings in residential and light commercial space.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/mon-ray-inc

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries1 record

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 Mon-Ray