What Protective Structures does

Insulgard Security Products, operating as a division of Polymershapes LLC since 1974 and headquartered at 1291 Rickett Rd, Brighton, Michigan, manufactures and supplies architectural security glazing systems for buildings across North America. The company serves a diversified set of verticals — K-12 and higher education, banks and credit unions, federal and municipal government, healthcare, law enforcement and military, corporate offices, data centers, retail, community storm shelters, and houses of worship — specifying and installing protective glazing in environments with elevated ballistic, severe-weather, or forced-entry risk. Customers are primarily architects, security consultants, contractors, and end-user facility owners; the company is privately held under Polymershapes LLC with no public ticker.

The product portfolio is organized under four sub-brands: BULLETBLOCK (UL 752-listed bullet-resistant windows, doors, glazing, and fiberglass panels rated Levels 1-8 from handguns to high-powered rifles), SAFECHANGE (UL 752-rated bullet-resistant transaction windows, counterline barriers, package passers, and pass-thru trays for financial and retail counters), STORMDEFEND (ICC 500-2023 and FEMA P-361-2021 compliant wind and impact-resistant systems for tornado and hurricane shelters, rated to 250 mph wind zones), and FORCEPROTECT (ASTM F1233, ASTM F1915, ASTM F3561, and HP White TP-0500.03 tested forced-entry glazing). Underlying technology is glass-clad polycarbonate assemblies with no-spall performance, paired with architectural aluminum framing and door systems (44/250, 44/450, HP600, TTH600 ST, 44/350, HP500, TTH350) and a range of specialized glazing materials (BALULN, TG30, BR-916 series). Manufacturing occurs at a 45,000 sq ft Brighton, MI facility equipped with CNC routers, computerized saws, and a full wood shop for custom fabrication to project specifications.

The company operates a quote-based direct sales model with Net 30 payment terms, going to market through enterprise field sales targeting architects and security consultants, a contractor network for SAFECHANGE installations (described as one of the largest in the industry), and an inside-sales quote-request channel. Revenue is generated from one-time hardware sales of security glazing products, custom fabrication services, and installation services for SAFECHANGE counterline systems. Marketing is multi-channel: content/blog, industry events, organic social (Facebook, X, Instagram, LinkedIn, YouTube), email/newsletter, and continuing-education programs for industry professionals. There is no proprietary software or app; the business is a pure physical-security hardware manufacturer with domestic U.S. focus.

Name

Protective Structures

Legal name

Polymershapes LLC

Website

https://protectivestructures.com

Company type

Private

Founded year

1974

Operating status

Operating

Headcount range

1–10 employees

Short description

Insulgard Security Products, a division of Polymershapes LLC, designs and manufactures UL 752 certified bullet-resistant, FEMA/ICC compliant storm-rated, and forced-entry resistant architectural glazing systems for education, financial, government, military, and commercial facilities across North America.

Ownership category

akta.pro rank

Product category

Architectural Security Glazing

NAICS

Metal Window and Door Manufacturing (332321), Glass and Glazing Contractors (23815), Sheet Metal Work Manufacturing (332322)

SIC

Metal Doors, Sash, Frames, Moldings & Trim (3442)

akta.pro primary industry

Specialty Glazing (Acoustic, Blast, Bullet-Resistant, Smart/Electrochromic) (IMADAHAL)

akta.pro secondary industries

Architectural & Building Glazing Systems (Curtain Wall/Storefront/Canopies) (IMADAHAB), Architectural Glazing & Fenestration (Curtain Wall, Windows, Storefronts, Skylights) (IMAFAMAC)

Keywords

• Bullet resistant glazing
• Security windows doors
• Forced entry glazing
• Storm shelter windows
• Architectural security products

Headquarters

HQ city

Brighton

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Security Glazing Products: One-time sale of bullet-resistant, impact-resistant, and forced-entry resistant glazing products including windows, doors, framing systems, and fiberglass panels. Products are sold directly to customers based on project specifications.
2. Custom Fabrication Services: Precision manufacturing of custom architectural security systems tailored to project specifications using CNC routers and computerized equipment.
3. Installation Services: Installation services for SAFECHANGE counterline systems through one of the largest networks in the industry. For other product lines, guidance and support is provided to contractors for code-compliant installation.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Protective Structures, operating as Insulgard Security Products, manufactures and supplies architectural security glazing systems including bullet-resistant windows, doors, framing, and fiberglass panels (UL 752 listed for Levels 1-8); forced-entry resistant glazing; and wind/impact-resistant windows and doors meeting ICC 500-2023 and FEMA P-361-2021 for tornado and hurricane storm shelters. The company operates a 45,000-square-foot precision fabrication facility and provides custom manufacturing, project support from concept through completion, and installation services.

Product overview

Insulgard Security Products (a division of Polymershapes LLC) offers a comprehensive portfolio of architectural security products organized under four main product lines: BULLETBLOCK (bullet-resistant windows, doors, glazing, and fiberglass panels tested to UL 752 standards), SAFECHANGE (bullet-resistant transaction windows, counterline barriers, package passers, and pass-thru trays for secure customer exchanges), STORMDEFEND (wind and impact-resistant windows, doors, and glazing meeting ICC 500-2023 and FEMA P-361-2021 standards for storm shelters), and FORCEPROTECT (forced-entry resistant glazing). The portfolio includes aluminum framing systems (44/250, 44/450, HP600, TTH600 ST), door systems (44/350, HP500, TTH350, LC, Polymer, Hollow Metal), and specialized glazing materials (BALULN series, TG30 series, BR-916 series, and FG Series fiberglass panels). These products serve industries including education, financial, government, healthcare, law enforcement, military, and storm shelters, with testing and certification to UL 752, ASTM F1233, ASTM F1915, ICC 500, and FEMA P-361 standards.

Differentiator

Problem solved

Functional benefit

Brands

• BulletBlock: Bullet-resistant windows, doors, glazing, and fiberglass panels tested to UL 752 standards for ballistic protection.
• SafeChange
• StormDefend
• ForceProtect

Products and services

• BULLETBLOCK Bullet-resistant windows, doors, glazing, and fiberglass panels (FG-100 to FG-800) tested and listed to UL 752 standards, providing protection against ballistic threats ranging from handguns to high-powered rifles (Levels 1-8). For education, financial, government, healthcare, law enforcement, and military facilities.
• SAFECHANGE Bullet-resistant transaction windows, counterline barriers, package passers, pass-thru trays, and accessories delivering UL 752-rated ballistic protection at customer service counters and points of sale, including AVT Transaction Window. For banks, credit unions, check cashing centers, and retail cash desks.
• STORMDEFEND Wind and impact-resistant aluminum window and door systems meeting ICC 500-2023 and FEMA P-361-2021 requirements for tornado and hurricane storm shelters, including 250mph wind zones. Includes TTH600 ST framing and TTH350 door systems. For community storm shelters, safe rooms, and FEMA-compliant facilities.
• FORCEPROTECT

Quantifiable outcome

• Protection against 250mph wind zones for tornado and hurricane shelters
• +1 more outcomes

Named customers4 records

Segments10 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators2 records

Recent moves6 records

Expansion highlights6 records

Emerging players

• DefenseLite: Emerging player in retrofit security glazing overlays targeting schools, retailers, and commercial buildings — competes in forced-entry and low-level ballistic categories.
• Riot Glass: Emerging player in forced-entry and ballistic-resistant retrofit glazing systems, competing in the FORCEPROTECT-adjacent segment with a retrofit-focused GTM.

Broad incumbents

• Oldcastle BuildingEnvelope: Broad incumbent in curtain wall, storefront, and architectural glazing systems; serves similar architects and contractors but as part of a much wider building-envelope portfolio.
• Apogee Enterprises: Parent of Viracon, EFCO, and other architectural glazing/platform brands; a scaled incumbent in commercial architectural glass with adjacent security-product capability.
• C.R. Laurence (CRL): Broad incumbent distributor and manufacturer of architectural glazing hardware, aluminum systems, and storefront components — overlaps with Insulgard's framing and architectural opening categories.
• Vitro Architectural Glass: Major architectural flat-glass manufacturer supplying commercial glazing value chain; comparable customer base (architects, glaziers, façade contractors) and adjacent threat-resistant product line.

Direct peers

• Global Security Glazing: Sibling-style competitor holding overlapping trademarks (Lexgard, Armor-Gard, Fire-Gard, Sure-Gard) for UL-listed ballistic and forced-entry glazing; competes head-to-head in the same specifier channels.
• Armortex: Direct peer manufacturing bullet- and blast-resistant architectural products (doors, windows, curtain walls) for correctional, government, and commercial facilities.
• Total Security Solutions: Direct competitor specializing in bullet-resistant barriers, transaction windows, and security glazing for banks, schools, and government — overlapping product categories and customer verticals with Insulgard.
• U.S. Bullet Proofing: Direct competitor in bullet-resistant doors, windows, and security enclosures serving government, law enforcement, and commercial customers with comparable UL-listed products.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/insulgard
• YouTubeyoutube.com/@Insulgard
• Facebookfacebook.com/Insulgard-Security-Products-61575086938780
• LinkedInlinkedin.com/company/protective-structures
• Instagraminstagram.com/insulgard

Compliance11 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 Protective Structures