Company lists · Data refreshed September 2026

Top 25 Flat roof installation companies worldwide

Name: Flat roof installation companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 10,469 companies tracked

RevenueBase identified 10,469 flat roof installation companies worldwide as of September 2026 and tracks 66,013 professional contacts across them, including 18,686 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers flat roof installation companies 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 flat roof installation companies 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

10,469Companies

66,013Contacts tracked

18,686Verified emails

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The 25 largest flat roof installation companies worldwide

Ranked by team size

Top 25 of 10,469 flat roof installation companies worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to flat roof installation companies: 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	BMI Group	Partial evidence	Reading, United KingdomHQ checked Sep 19, 2026	5,001-10,000	2,448 contacts →
	Partial evidence “BMI Group was born out of the recognition that customers now expect a single point of expertise to help them find their ideal roof.” Source: RevenueBase Database · checked Sep 19, 2026
2	Centimark Corporation	Indirect evidence	Canonsburg, PA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,562 contacts →
	Indirect evidence “We are North America's largest commercial roofing contractor, with over 100 locations from coast to coast.” Source: RevenueBase Database · checked Sep 19, 2026
3	Tecta America Commercial Roofing	Indirect evidence	Rosemont, IL, United StatesHQ checked Sep 19, 2026	1,001-5,000	743 contacts →
	Indirect evidence “Tecta America Corp.” Source: RevenueBase Database · checked Sep 19, 2026
4	Nations Roof	Partial evidence	Mobile, AL, United StatesHQ checked Sep 19, 2026	1,001-5,000	504 contacts →
	Partial evidence “Ranked #6 on Roofing Contractor's 2026 Top 100 list, Nations Roof is one of the nation's largest commercial roofing contractors, providing proactive maintenance, repairs…” Source: RevenueBase Database · checked Sep 19, 2026
5	Simon Roofing	Indirect evidence	Youngstown, OH, United StatesHQ checked Sep 19, 2026	501-1,000	349 contacts →
	Indirect evidence “Simon Roofing is a national commercial roofing services provider supporting facilities across the United States.” Source: RevenueBase Database · checked Sep 19, 2026
6	Duro-Last	Partial evidence	Saginaw, MI, United StatesHQ checked Sep 19, 2026	501-1,000	345 contacts →
	Partial evidence “Known as the “World’s Best Roof®”, Duro-Last is the only single-ply manufacturer offering custom-fabrication of the entire roofing system, including custom-fabricated PVC deck…” Source: RevenueBase Database · checked Sep 19, 2026
7	Chamberlin Roofing & Waterproofing	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	501-1,000	321 contacts →
	Indirect evidence “Chamberlin Roofing & Waterproofing is an established specialty contractor that provides roofing and sheet metal, waterproofing and caulking, building and garage restoration, as…” Source: RevenueBase Database · checked Sep 19, 2026
8	Advanced Roofing	Indirect evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 19, 2026	501-1,000	308 contacts →
	Indirect evidence “Established in 1983, Advanced Roofing Inc.” Source: RevenueBase Database · checked Sep 19, 2026
9	Roof Services	Partial evidence	Deer Park, NY, United StatesHQ checked Sep 19, 2026	51-200	304 contacts →
	Partial evidence “Roof Services is a Commercial roofing contractor.” Source: RevenueBase Database · checked Sep 19, 2026
10	Bothwell Accurate Co. INC	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 19, 2026	201-500	301 contacts →
	Indirect evidence “Bothwell-Accurate is one of the oldest and most experienced companies providing Roofing and Waterproofing services to Industrial, Commercial and Institutional buildings in the…” Source: RevenueBase Database · checked Sep 19, 2026
11	Premier Roofing Company	Indirect evidence	Denver, CO, United StatesHQ checked Sep 19, 2026	201-500	287 contacts →
	Indirect evidence “Premier Roofing Company is dedicated to serving the roofing needs of homeowners and businesses nationwide.” Source: RevenueBase Database · checked Sep 19, 2026
12	Siplast	Indirect evidence	Arkadelphia, AR, United StatesHQ checked Sep 19, 2026	51-200	285 contacts →
	Indirect evidence “Siplast is a recognized leader in high-performance commercial roofing, waterproofing, and building enclosure solutions, serving North America for over 50 years.” Source: RevenueBase Database · checked Sep 19, 2026
13	North American Roofing Services LLC	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 19, 2026	201-500	249 contacts →
	Indirect evidence “North American Roofing Services is a national commercial roofing company built on a foundation of integrity, hard work, and committed team members.” Source: RevenueBase Database · checked Sep 19, 2026
14	SIG Roofing	Partial evidence	St Ives, United KingdomHQ checked Sep 19, 2026	5,001-10,000	249 contacts →
	Partial evidence “SIG Roofing has everything you need under one roof.” Source: RevenueBase Database · checked Sep 19, 2026
15	Empire Roofing, INC	Indirect evidence	Fort Worth, TX, United StatesHQ checked Sep 19, 2026	501-1,000	243 contacts →
	Indirect evidence “The Empire Group of companies specializes in Commercial, Industrial, and Institutional Re-roofing Repair and Maintenance.” Source: RevenueBase Database · checked Sep 19, 2026
16	JR & CO	Indirect evidence	Kansas City, MO, United StatesHQ checked Sep 19, 2026	201-500	242 contacts →
	Indirect evidence “Headquartered in Kansas City, MO and serving clients across the United States, JR & CO is a family and veteran-owned full building envelope contractor specializing in roofing…” Source: RevenueBase Database · checked Sep 19, 2026
17	Bauder Flat Roofs	Strong evidence	Ipswich, United KingdomHQ checked Sep 19, 2026	201-500	231 contacts →
	Strong evidence “Bauder is a manufacturer and supplier of flat roof waterproofing systems, which are complemented by high quality green roof and PV solutions.” Source: RevenueBase Database · checked Sep 19, 2026
18	Kalkreuth Roofing & Sheet Metal, INC	Indirect evidence	Wheeling, WV, United StatesHQ checked Sep 19, 2026	501-1,000	229 contacts →
	Indirect evidence “Kalkreuth Roofing and Sheet Metal is a Top 10 commercial roofing contractor in the United States, specializing in complex commercial roofing, exterior envelope systems, and…” Source: RevenueBase Database · checked Sep 19, 2026
19	Eskola Roofing & Waterproofing	Indirect evidence	Morristown, TN, United StatesHQ checked Sep 19, 2026	501-1,000	226 contacts →
	Indirect evidence “With over 35 years in the roofing business, Eskola Roofing is a full-service roofing and waterproofing company.” Source: RevenueBase Database · checked Sep 19, 2026
20	Holland Roofing	Partial evidence	Florence, KY, United StatesHQ checked Sep 19, 2026	201-500	195 contacts →
	Partial evidence “Holland Roofing has been installing commercial roof systems with great success since 1986.” Source: RevenueBase Database · checked Sep 19, 2026
21	Briggs Amasco LTD	Indirect evidence	Cradley Heath, United KingdomHQ checked Sep 19, 2026	201-500	157 contacts →
	Indirect evidence “Our Mission is to carry out Roofing and Waterproofing contracts, using the best and technically most appropriate products in order to give our customers the best value in…” Source: RevenueBase Database · checked Sep 19, 2026
22	Roofing Solutions	Indirect evidence	Baton Rouge, LA, United StatesHQ checked Sep 19, 2026	201-500	156 contacts →
	Indirect evidence “Roofing Solutions has become one of the Top 25 Wall Panel and Commercial Roofing Companies in the U.S.A, earning multiple awards since our foundation in 2004.” Source: RevenueBase Database · checked Sep 19, 2026
23	Best Roofing	Indirect evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 19, 2026	201-500	153 contacts →
	Indirect evidence “Best Roofing is a licensed, bonded, and insured commercial and residential roofing contractor serving Florida since 1978.” Source: RevenueBase Database · checked Sep 19, 2026
24	Douglass Colony Group	Indirect evidence	Commerce City, CO, United StatesHQ checked Sep 19, 2026	201-500	149 contacts →
	Indirect evidence “Committed to excellence for over 75 years.” Source: RevenueBase Database · checked Sep 19, 2026
25	Greenwood Industries	Indirect evidence	Worcester, MA, United StatesHQ checked Sep 19, 2026	501-1,000	139 contacts →
	Indirect evidence “Greenwood Industries is the custom building envelope solutions company.” Source: RevenueBase Database · checked Sep 19, 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 roof installation companies. 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 roof installation companies.
Partial evidence: Its own public description names part of flat roof installation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name flat roof installation companies. 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 10,469 flat roof installation companies worldwide

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Flat roof installation companies worldwide at a glance

As of Sep 19, 2026

28.3%Verified-email coverage

6.3Average contacts per company

1-10Median size (employees)

0.9%Largest-city concentration · Houston

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

5,267

11-50

3,791

51-200

942

201-500

130

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 roof installation companies, 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: Every country. Country and city lists for flat roof installation companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “flat roof installation companies”. 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 roof installation companies), 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 roof installation companies, 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, 18,686 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.

Flat roof installation companies by location

26 lists · largest first

Every Flat roof installation companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 flat roof installation companies, 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 roof installation companies are there worldwide?

RevenueBase identified 10,469 flat roof installation companies 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?

BMI Group, headquartered in Reading, tops this list with the largest team on record.

Which country has the most flat roof installation companies?

The United States leads with 5,345 companies, followed by the United Kingdom (1,094) and Canada (522). Every flat roof installation companies list by country and city is linked on this page.

Which city has the most flat roof installation companies?

Houston leads with 92 headquartered companies, followed by Dallas (72) and London (64).

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 18,686 verified decision-maker contacts tracked across these 10,469 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.