Company lists · Data refreshed September 2026
Top 25 Window and siding contractors worldwide
RevenueBase identified 5,067 window and siding contractors worldwide as of September 2026 and tracks 41,626 professional contacts across them, including 9,734 with verified work emails and 0 with mobile numbers. The United States is the largest market and Calgary the largest hub.
This list covers window and siding contractors worldwide, 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 19, 2026. Country and city lists for window and siding contractors follow the table.
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.
The 25 largest window and siding contractors worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,323 contacts → | ||||
Strong evidence “Based in Cary, NC, Ply Gem is North America's leading manufacturer of exterior building materials, including windows, siding, stone, and 40 other categories.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,225 contacts → | ||||
Indirect evidence “Since 2006, West Shore Home has continued to change the face of home improvement at the intersection of quality and convenience.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,119 contacts → | ||||
Indirect evidence “Sears Home Improvement Products and Services, a member of the Sears Holdings Corporation (NASDAQ: SHLD) family of companies, is one of America's largest home improvement companies…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,076 contacts → | ||||
Partial evidence “Lansing Building Products distributes exterior building products to professional contractors – and we’ve been doing it since Grandpa Ted Lansing founded the company in 1955.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,073 contacts → | ||||
Strong evidence “Window World® is America's Exterior Remodeler, offering quality windows, doors, siding, shutters, and more, with over 200 locations nationwide.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 948 contacts → | ||||
Partial evidence “With over six decades of experience and expertise, Champion Windows and Home Exteriors, a Great Day Improvements brand, is one of the nation’s leading home improvement companies.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 754 contacts → | ||||
Partial evidence “At Window Nation, we know replacement windows.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 401 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 324 contacts → | ||||
Indirect evidence “One Source, One Brand for all your exterior sidewall needs" The Norandex brand of exterior building products has focused on making the dreams of American homeowners come true with…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 320 contacts → | ||||
Indirect evidence “Investing in home improvements is an important decision.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 273 contacts → | ||||
Strong evidence “At HANSONS, we pride ourselves on offering the best-in-class roofing, baths, windows, and siding.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 260 contacts → | ||||
Partial evidence “A pioneering dealer for next-generation windows and eco-friendly building products, Apex Energy Solutions serves homeowners who value and love the place they call home.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 250 contacts → | ||||
Indirect evidence “Quality-crafted with attention to detail, Gentek products combine outstanding beauty and strength with the luxury of a low-maintenance finish.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 250 contacts → | ||||
Indirect evidence “HomeFix was founded in June of 1990 and is an industry leader in home improvement across Virginia, Maryland, Washington, DC, and southern Pennsylvania.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 220 contacts → | ||||
Strong evidence “At Legacy Restoration, we do more than repair and replace home exteriors – roofing, windows, siding, and gutters - we provide a guided experience for homeowners and property…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 219 contacts → | ||||
Strong evidence “Feldco Windows, Siding, Doors and Roofing is a family-owned exterior remodeling company that has proudly served the Midwest since 1976.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 219 contacts → | ||||
Indirect evidence “Our face-to-face approach ensures that you get the best experience, with our knowledgeable and dedicated staff on day one.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 212 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 210 contacts → | ||||
Partial evidence “Thompson Creek Window Company is a community of innovative and self-directed colleagues dedicated to delighting our customers and addressing their exterior home renovation needs.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 179 contacts → | ||||
Indirect evidence “At MLM, our mission is to deliver the highest quality products and installations with family-like customer service and our vision is to be the best at what we do through enriching…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 177 contacts → | ||||
Strong evidence “Specializing in residential and commercial exteriors, Feazel offers high-value solutions for roofing, solar, windows, siding, gutters, chimneys, skylights, and more.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 173 contacts → | ||||
Indirect evidence “Installation by professionals.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 159 contacts → | ||||
Partial evidence “Since 2004, Infinity Roofing & Siding has been trusted by homeowners and businesses nationwide for reliable roofing, storm restoration, and exterior improvements.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 157 contacts → | ||||
Strong evidence “Since 1980, PJ Fitzpatrick has been the trusted name in home improvement, delivering top-quality roofing, gutters, windows, doors, siding and bath replacement and repair options…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 140 contacts → | ||||
Strong evidence “American Exteriors, LLC manufactures and sells replacement windows, siding, and other products that improve the energy efficiency and appearance of an existing home.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
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: window and siding contractors. 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 window and siding contractors.
- Partial evidence
- Its own public description names part of window and siding contractors, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name window and siding contractors. 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 5,067 window and siding contractors worldwide
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Window and siding contractors worldwide at a glance
As of Sep 19, 2026Companies by employee count
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 window and siding contractors, 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.
- Coverage
- 5 countries, largest first: the United States, Canada, the United Kingdom, Germany, the Netherlands. Country and city lists for window and siding contractors are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “window and siding contractors”. 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 window and siding contractors), 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 window and siding contractors, and records with no verified work email.
- 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, 9,734 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 19, 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.
Window and siding contractors by location
9 lists · largest firstEvery Window and siding contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Window and siding contractors based in the United States4,415
- Window and siding contractors based in Canada378
- Window and siding contractors based in the United Kingdom140
- Window and siding contractors based in Germany85
- Window and siding contractors based in the Netherlands49
Cities
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 window and siding contractors, 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 window and siding contractors are there worldwide?
RevenueBase identified 5,067 window and siding contractors worldwide 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?
PLY GEM, headquartered in Cary, tops this list with the largest team on record.
Which country has the most window and siding contractors?
The United States leads with 4,415 companies, followed by Canada (378) and the United Kingdom (140). Every window and siding contractors list by country and city is linked on this page.
Which city has the most window and siding contractors?
Calgary leads with 41 headquartered companies, followed by Denver (39) and Omaha (35).
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 9,734 verified decision-maker contacts tracked across these 5,067 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 19, 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.