List of Window Manufacturers in the USA

Last updated 21 October 2026

There are 2,762 window manufacturers in the USA, one in every 23,125 US companies. Most of them are small: half have one to four people, and only 280 firms employ 50 people or more. One in seventeen window manufacturers is based in Houston, Miami, Phoenix, Dallas and Hialeah. Below you find the largest window manufacturers in the USA, the cities where they cluster, how many started this year and which are the oldest. The full list with addresses, phone numbers and email is in our US company database or through the Company Data API.

2,762 companies indexed · Data counted on 21 October 2026

Companies2,7621 in23,125 US companiesCities1,377Largest cityHouston 45Sole traders8%Employees1-4 (53%)Revenue$100-500K (43%)Email44%Phone81%Website61%

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A live view of all 2,762 window manufacturers, sorted by revenue. Narrow it by region, city, employee size, revenue, legal form or founding year, or search a firm by name.

Masonite International CORPORATIONMasonite International CORPORATION

	Company Name	Country	City	Address 1	State/Province	Postal Code	Website	Founding Year	Yearly Revenue in U.S. Dollars	Employees Total	Business Legal Type - Description	Number of Companies in Group	Company Registration Number
1	Masonite International CORPORATION	USA	Tampa	1242 E 5th Ave	Hillsborough	33605-4904	masonite.*****	2012	$2,830,695,000	10,550	Corporation	447	381422703
2	Griffon CORPORATION	USA	New York	712 5th Ave Fl 18	New York	10019-4108	ames.*****	1959	$2,519,926,000	5,100	Corporation	128	0768903
3	Janus International Group, INC.	USA	Temple	135 Janus International Blvd	Carroll	30179-4439	janusintl.*****	2002	$963,800,000	2,243	Corporation	35	4495381
4	Janus International Group, LLC	USA	Temple	135 Janus International Blvd	Carroll	30179-4439	janusintl.*****	2018	$884,200,000	2,243	Corporation	35	0105628
5	Kawneer Company, INC.	USA	Norcross	555 Guthridge Ct	Gwinnett	30092-3503	kawneer.*****	1964	$508,816,002	2,900	Corporation	101	381753729
6	Pgt Industries, LLC	USA	Harrisburg	2550 Interstate Dr Ste 400	Dauphin	17110	miwindows.*****	1980	$493,922,209	1,105	Corporation	83	19991143144
7	Modern Builders Supply, INC.	USA	Toledo	3500 Phillips Ave	Lucas	43608-1070	modernbuilderssupply.*****	1986	$346,234,629	750	Corporation	30	506927
8	Sanwa USA, INC.	USA	Plano	4012 Preston Rd Ste 200	Collin	75093-7350	sanwa-tech.*****	1947	$326,722,327	3,576	Corporation	411	0106541700
9	Overhead Door CORPORATION	USA	Lewisville	2501 S State Highway 121 Bus Ste 200	Denton	75067-4186	ohdcorporation.*****	1996	$326,722,327	2,681	Corporation	411	192118-020
10	Milgard Manufacturing LLC	USA	Tacoma	1498 Pacific Ave Fl 4	Pierce	98402-4208	N/A	2019	$287,733,184	2,037	Corporation	83	7766418
11	Neisewander Enterprises INC.	USA	Dixon	1101 E River Rd	Lee	61021-3252	raynor.*****	1944	$280,637,912	1,800	Corporation	13	0806619
12	Mill Creek Lumber & Supply Company INC	USA	Tulsa	6974 E 38th St	Tulsa	74145-3203	millcreeklumber.*****	1934	$124,463,439	690	Corporation	42	1900116486
13	Senneca Holdings, INC.	USA	Cincinnati	10021 Commerce Park Dr	Hamilton	45246-1333	senneca.*****	2010	$122,591,653	95	Corporation	94	4914116
14	Ykk Ap America INC.	USA	Atlanta	101 Marietta St Nw Ste 2100	Fulton	30303-2769	ykkap.*****	1987	$116,406,269	670	Corporation	412	1542798
15	Provia Holdings, INC.	USA	Sugarcreek	2150 State Route 39	Tuscarawas	44681-9201	provia.*****	1983	$114,676,913	420	Corporation	7	680768
16	Desco CORPORATION	USA	New Albany	7795 Walton Pkwy Ste 175	Mahoning	43054-0002	descocorporation.*****	1975	$101,455,575	759	Corporation	13	472498
17	Raynor MFG. CO.	USA	Dixon	1101 E River Rd	Lee	61021-3277	raynor.*****	1974	$98,697,389	1,800	Corporation	13	29169730
18	Efco, LLC	USA	Monett	1000 County Rd	Barry	65708-9214	efcoforms.*****	1953	$98,257,010	1,750	Corporation	103	LC014358883
19	Aadg, INC.	USA	Mason City	1502 12th St Nw	Cerro Gordo	50401	curries.*****	1997	$89,776,384	1,200	Corporation	974	2079352
20	M-D Building Products, INC.	USA	Oklahoma City	4041 N Santa Fe Ave	Oklahoma	73118-8512	mdbuildingproducts.*****	1920	$88,662,372	1,106	Corporation	8	1900636629
21	C.H.I. Overhead Doors, LLC	USA	Arthur	1485 Sunrise Dr	Douglas	61911-1684	chiohd.*****	2022	$86,007,564	691	Corporation	542	06854583
22	Quaker Window Products CO.	USA	Freeburg	504 S Highway 63	Osage	65035-7708	workatquaker.*****	1945	$83,523,085	800	Corporation	N/A	430813428
23	Window Products INC.	USA	Spokane	10507 E Montgomery Dr	Spokane	99206-4280	cascadewindows.*****	2016	$64,982,731	350	Corporation	1113	601194681
24	Larson Manufacturing Company, LLC	USA	Brookings	2333 Eastbrook Dr	Brookings	57006	larsondoors.*****	1954	$64,115,653	240	Corporation	98	DL199914
25	Hormann LLC	USA	Montgomery	5050 Baseline Rd	Kane	60538-1125	hormann.*****	2006	$55,705,910	300	Corporation	69	0607942

Showing 25 of 2,778 companies

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Largest window manufacturers in the USA

The biggest firms by staff and by revenue, the largest in Houston. Click a name for the record.

J. T. Walker Industries is the largest window manufacturer in the USA by headcount. 280 firms employ 50 people or more; 141 employ 100 or more.

1Rancho Cucamonga4,302 staff
2Lewisville2,681 staff
3Temple2,243 staff
4Medford2,000 staff
5Dixon1,800 staff
6Monett1,750 staff
7Tamarac1,570 staff
8Tampa1,500 staff
9Mason City1,200 staff
10Oklahoma City1,106 staff

By employee size · 2,759 firms with a known headcount

Employees	Firms	%
1-4	1,463	53%
5-9	511	19%
10-19	258	9%
20-49	247	9%
50-99	139	5%
100-199	80	3%
200-499	45	2%
500-999	10	0.4%
1,000+	6	0.2%

53% have 1 to 4 people; 247 have 20 to 49; 280 have 50 or more.

By yearly revenue (USD)

Revenue	Firms	%
< $100K	143	6%
$100K-$500K	1,017	43%
$500K-$1M	422	18%
$1M-$5M	565	24%
$5M-$10M	106	4%
$10M-$50M	93	4%
$50M-$100M	12	0.5%
$100M-$500M	10	0.4%
$500M+	5	0.2%

43% between $100,000 and $500,000; 565 between $1M and $5M; 226 above $5M.

Window manufacturers in Houston

Houston has 45 window manufacturers, <0.1% of all 881,247 Houston companies and 18% above the national share. Three in five Houston firms have fewer than five people; 4 have 50 or more. 1 new firm was entered in 2026, 5 date from before 1990.

Size

1-4 staff: 25 · 56%
5-9: 10 · 22%
10-19: 4 · 9%
20-49: 2 · 4%
50+: 4 · 9%

Legal form

Sole traders: 10 · 22%
Partnerships: 1 · 2%
Corporations and LLCs: 19 · 42%
Other or none: 15 · 33%

Of the US total: 1.6%
Of all Houston companies: <0.1%
Against the national share: 1.2×

New

Entered 2026 so far: 1
Entered 2025: 1
Of USA's 2026 entries: 14.3%

Old

Before 1990: 5 · 11%
1990 or later: 40 · 89%
Of USA's pre-1990 firms: 0.9%

Reachable

Email: 17 · 38%
Phone: 38 · 84%
Website: 27 · 60%

Revenue (USD)

Under $100K: 5 · 14%
$100K-$500K: 14 · 38%
$500K-$1M: 6 · 16%
$1M and more: 12 · 32%

Largest

1192
293
374
451
533

All companies in Houston →

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Firm sizes in the USA

Of the 2,759 US window manufacturers with a known headcount, 1,463 (53%) have one to four people, 511 have five to nine, 505 have ten to 49 and 280 have 50 or more. Most firms turn over between $100,000 and $500,000 a year (1,017, 43%).

EU size bands · the grey line shows all US companies

Micro under 101,974 72%
Small 10 to 49505 18%
Medium 50 to 249264 10%
Large 250+16 0.6%

Grey line: the share among all US companies (96% have under ten staff).

226

firms turn over more than $5 million a year; 120 more than $10 million.

firms were entered in 2026.

How many window manufacturers are there in the USA?

Window manufacturers in the USA

2,762

21 October 2026

There are 2,762 window manufacturers in the USA in our data (21 October 2026). That is one in every 23,125 US companies. 7 were entered in the register so far in 2026.

Structure

Single-site firms: 2,176 79%
Head offices: 198
Branch offices: 388

Classification

Our platform filter is SIC 3442.

1,666 of the 2,762 are corporations and LLCs (60%); 233 are sole traders. They come from the state business registers and our US register data, through the Company Data API.

Where in the USA?

Houston has the most window manufacturers in the USA (45), ahead of Miami (39), Phoenix (34), Dallas (23) and Hialeah (22). Together the five hold one in seventeen of them.

Cities by number of firms

1,377 US cities have at least one window manufacturer; 32 have ten or more; 891 have exactly one. Click a city to set the lens.

How reachable are they?

Window manufacturers are easier to reach than the average US company: 81% list a phone number and 61% a website.

Email1,229 44%
Phone2,247 81%
Website1,691 61%

Grey line: all US companies (email 15%, phone 42%, website 24%).

The full list with these fields is in our US company database.

The oldest firms in the USA

Our data holds 2 US window manufacturers from before 1900, 44 from before 1950 and 554 from before 1990.

1875
1. Easthampton
1885
1. Minneapolis
1907
1. Evansville
1920
1. Oklahoma City
1924
1. Baltimore
1924
1. Secaucus

Older than you

Live tool

Move the slider to a year. Two live counts, scoped to this industry.

1990

554

US window manufacturers date from before 1990

were entered in 1990

How they compare

Next to related industries

There are 171 hvac companies for every window manufacturer in the USA.

Industry	Firms	Website	1-4 staff
HVAC Companies	473,086	33%	87%
Landscapers	281,609	20%	93%
Masons	61,384	22%	86%
Landscape Designers	10,908	79%	70%
Garage Doors	10,570	73%	82%
Window Manufacturers	2,762	61%	53%

In other countries

Only the UK has more window manufacturers than the USA.

Country	Firms	Per 1,000 cos.
The UK	3,621	0.4
The USA	2,762	0.0

More countries →

Free sample: window manufacturers in North America

Sole traders or corporations: how they are organised

One in twelve US window manufacturers work as sole traders, against 5% of all US companies. Three in five are corporations and LLCs.

Sole traders2338%
Partnerships442%
Corporations and LLCs1,66660%
No form on record or other81930%

Single-site: 79%
Head offices: 198
Branches: 388

All US companies: 5% sole traders, 1% partnerships, 68% corporations and LLCs.

Frequently asked questions

How many window manufacturers are there in the USA?

There are 2,762 window manufacturers in the USA in our data, counted on 21 October 2026. That is one in every 23,125 US companies.

Which is the largest window manufacturer in the USA?

J. T. Walker Industries in Rancho Cucamonga, with 4,302 staff. By revenue Masonite International in Tampa leads with $2.8 billion a year.

Which US city has the most window manufacturers?

Houston, with 45, ahead of Miami (39), Phoenix (34), Dallas (23) and Hialeah (22).

How many window manufacturers are there in Houston?

45, which is <0.1% of all 881,247 Houston companies and 18% above the national share.

How big is a typical window manufacturer?

Small. 53% of the 2,759 firms with a known headcount have one to four people; 280 have 50 or more. Most turn over between $100,000 and $500,000 a year.

Are US window manufacturers sole traders or companies?

One in twelve (233) are sole traders, 2% are partnerships and 60% (1,666) are corporations and LLCs.

How many window manufacturers started in 2026?

7 were entered in the US register so far in 2026, after 34 in 2025. 7 of them are corporations and LLCs.

What is the oldest window manufacturer in the USA?

The Philipp Manufacturing in Easthampton, 1875, followed by St. Paul Corrugating Co. in Minneapolis (1885) and International Steel in Evansville (1907). 2 firms date from before 1900.

Which industry code covers window manufacturers?

Our platform filters them on SIC 3442 (metal doors, sash, frames, molding, and trim manufacturing).

Can I download the full list?

Yes. All 2,762 firms with address, phone, email, legal form, employees, revenue and founding year, as Excel, CSV or through the API.

Discover more: related industries, by city, in other countries

The lists closest to this one. Every industry and city in the USA is on the USA page.

Manufacturing

Companies in US cities

Europe

Window Manufacturers in the UK

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