Company lists · Data refreshed September 2026

Top 25 Flat glass manufacturers based in the United States

Name: Flat glass manufacturers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 724 companies tracked

RevenueBase identified 724 flat glass manufacturers headquartered in the United States as of September 2026 and tracks 18,392 professional contacts across them, including 4,958 with verified work emails. Houston is the largest hub.

This list covers flat glass manufacturers headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review

724Companies

18,392Contacts tracked

4,958Verified emails

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The 25 largest flat glass manufacturers based in the United States

Ranked by team size

Top 25 of 724 flat glass manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to flat glass manufacturers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Guardian Industries	Indirect evidence	Auburn Hills, MI, United StatesHQ checked Sep 16, 2026	5,001-10,000	3,633 contacts →
	Indirect evidence “Guardian Industries, a global company headquartered in Auburn Hills, Michigan, operates facilities throughout North and South America, Europe, Africa, the Middle East, and Asia.” Source: RevenueBase Database · checked Sep 16, 2026
2	Oldcastle Buildingenvelope	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 16, 2026	5,001-10,000	1,860 contacts →
	Indirect evidence “At Oldcastle BuildingEnvelope® (OBE), we believe the work of our employees truly matters.” Source: RevenueBase Database · checked Sep 16, 2026
3	Trulite Glass & Aluminum Solutions	Partial evidence	Peachtree City, GA, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,184 contacts →
	Partial evidence “TRULITE GLASS & ALUMINUM SOLUTIONS is one of North America's largest architectural glass and aluminum fabricators and distributors.” Source: RevenueBase Database · checked Sep 16, 2026
4	Carlex Glass America, LLC	Partial evidence	Nashville, TN, United StatesHQ checked Sep 16, 2026	1,001-5,000	748 contacts →
	Partial evidence “At Carlex, we know serving a car owner ultimately means better serving car manufacturers and designers and those who service and repair cars.” Source: RevenueBase Database · checked Sep 16, 2026
5	Mygrant Glass Company	Partial evidence	Hayward, CA, United StatesHQ checked Sep 16, 2026	1,001-5,000	518 contacts →
	Partial evidence “Mygrant Glass is headquartered in Hayward, Ca, and is committed to maintaining the highest standard of service and the most extensive inventories possible.” Source: RevenueBase Database · checked Sep 16, 2026
6	AGC Glass Company North America	Strong evidence	Alpharetta, GA, United StatesHQ checked Sep 16, 2026	1,001-5,000	487 contacts →
	Strong evidence “AGC Glass is one of the largest manufacturers of glass and glass-related products in North America, offering a broad range of glazing solutions for commercial, residential…” Source: RevenueBase Database · checked Sep 16, 2026
7	Pittsburgh Glass Works	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 16, 2026	1,001-5,000	481 contacts →
	Partial evidence “Please See Vitro Automotive Glass*” Source: RevenueBase Database · checked Sep 16, 2026
8	Binswanger Glass	Partial evidence	Memphis, TN, United StatesHQ checked Sep 16, 2026	501-1,000	441 contacts →
	Partial evidence “For over 150 years, Binswanger Glass has shaped the built environment with award-winning architectural glazing solutions.” Source: RevenueBase Database · checked Sep 16, 2026
9	Walters & Wolf	Indirect evidence	Fremont, CA, United StatesHQ checked Sep 16, 2026	501-1,000	396 contacts →
	Indirect evidence “Here at Walters & Wolf, we have always been about our people, our performance, and our quality because we care about you and your next big idea!” Source: RevenueBase Database · checked Sep 16, 2026
10	Hartung Glass Industries	Partial evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	501-1,000	333 contacts →
	Partial evidence “Hartung Glass Industries is one of the fastest growing, most dynamic, total service glass companies in North America.” Source: RevenueBase Database · checked Sep 16, 2026
11	HMI Glass	Strong evidence	Louisville, KY, United StatesHQ checked Sep 16, 2026	501-1,000	182 contacts →
	Strong evidence “HMI is a leading American manufacturer of custom glass and shower enclosure systems serving residential, hospitality, multifamily, and commercial markets nationwide.” Source: RevenueBase Database · checked Sep 16, 2026
12	Custom Glass Solutions, LLC	Partial evidence	Worthington, OH, United StatesHQ checked Sep 16, 2026	501-1,000	172 contacts →
	Partial evidence “Custom Glass Solutions was formed to meet the glass needs of diverse industries.” Source: RevenueBase Database · checked Sep 16, 2026
13	GGI General Glass International	Partial evidence	Secaucus, NJ, United StatesHQ checked Sep 16, 2026	201-500	144 contacts →
	Partial evidence “General Glass International (GGI) is a trusted leader in specialty architectural and decorative glass solutions serving customers across North America.” Source: RevenueBase Database · checked Sep 16, 2026
14	Glasstech	Strong evidence	Perrysburg, OH, United StatesHQ checked Sep 16, 2026	51-200	140 contacts →
	Strong evidence “Glasstech, Inc, is the world's leading manufacturer of glass bending and tempering technology for the solar, automotive and architectural glass markets.” Source: RevenueBase Database · checked Sep 16, 2026
15	Mcgrory Glass Systems	Partial evidence	Paulsboro, NJ, United StatesHQ checked Sep 16, 2026	51-200	106 contacts →
	Partial evidence “McGrory Glass Systems is a leading glass fabricator and consultant to the Architectural industry.” Source: RevenueBase Database · checked Sep 16, 2026
16	Tecnoglass INC	Indirect evidence	Miami, FL, United StatesHQ checked Sep 16, 2026	5,001-10,000	103 contacts →
	Indirect evidence “Tecnoglass follows one vision: quality.” Source: RevenueBase Database · checked Sep 16, 2026
17	American Insulated Glass	Partial evidence	Conley, GA, United StatesHQ checked Sep 16, 2026	201-500	91 contacts →
	Partial evidence “Headquartered in Atlanta, American Insulated Glass is a leading glass fabricator and wholesale distributor, specializing in providing high-quality insulated, laminated, tempered…” Source: RevenueBase Database · checked Sep 16, 2026
18	Press Glass North America	Partial evidence	Ridgeway, VA, United StatesHQ checked Sep 16, 2026	1,001-5,000	87 contacts →
	Partial evidence “Press Glass Inc.” Source: RevenueBase Database · checked Sep 16, 2026
19	Intigral, INC	Strong evidence	Walton Hills, OH, United StatesHQ checked Sep 16, 2026	201-500	86 contacts →
	Strong evidence “Intigral is a leading independent manufacturer of insulating glass units and residential glass solutions for window and door manufacturers.” Source: RevenueBase Database · checked Sep 16, 2026
20	Glasswerks	Partial evidence	South Gate, CA, United StatesHQ checked Sep 16, 2026	201-500	77 contacts →
	Partial evidence “For more than three decades, the custom glass fabrication experts at Glasswerks have been producing a wide range of custom and architectural glass products for customers in Los…” Source: RevenueBase Database · checked Sep 16, 2026
21	Salem Fabrication Technologies Group, INC	Partial evidence	Winston-salem, NC, United StatesHQ checked Sep 16, 2026	51-200	70 contacts →
	Partial evidence “Salem Fabrication Technologies Group, Inc.(SFTG) is a 100% employee‑owned international company delivering glass fabrication and manufacturing solutions through equipment…” Source: RevenueBase Database · checked Sep 16, 2026
22	Dulles Glass	Strong evidence	Manassas, VA, United StatesHQ checked Sep 16, 2026	51-200	69 contacts →
	Strong evidence “Dulles Glass is the most advanced retailer and manufacturer for custom-cut glass, mirror and shower door products servicing residential and commercial customers across the United…” Source: RevenueBase Database · checked Sep 16, 2026
23	City Glass Company	Partial evidence	Colorado Springs, CO, United StatesHQ checked Sep 16, 2026	11-50	68 contacts →
	Partial evidence “Glass & Glazing Contractors Retail glass service company Architectural Glass Only (no auto) Commercial & Residential Service” Source: RevenueBase Database · checked Sep 16, 2026
24	Kensington Glass Arts, INC	Indirect evidence	Ijamsville, MD, United StatesHQ checked Sep 16, 2026	51-200	65 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
25	Glassfab Tempering Services	Indirect evidence	Tracy, CA, United StatesHQ checked Sep 16, 2026	201-500	63 contacts →
	Indirect evidence “Glassfab Tempering Services, Inc.” Source: RevenueBase Database · checked Sep 16, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: flat glass manufacturers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names flat glass manufacturers.
Partial evidence: Its own public description names part of flat glass manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name flat glass manufacturers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 724 flat glass manufacturers based in the United States

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Flat glass manufacturers based in the United States at a glance

As of Sep 16, 2026

27.0%Verified-email coverage

25.4Average contacts per company

11-50Median size (employees)

2.3%Largest-city concentration · Houston

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

310

11-50

244

51-200

107

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 724 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among flat glass manufacturers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “flat glass manufacturers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names flat glass manufacturers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among flat glass manufacturers, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 4,958 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 16, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names flat glass manufacturers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many flat glass manufacturers are there based in the United States?

RevenueBase identified 724 flat glass manufacturers headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Guardian Industries, headquartered in Auburn Hills, tops this list with the largest team on record.

Which city has the most flat glass manufacturers?

Houston leads with 17 headquartered companies, followed by New York (15) and Dallas (8).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 4,958 verified decision-maker contacts tracked across these 724 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 16, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.