Company lists · Data refreshed September 2026

Top 25 Plumbing design build firms based in the United States

Name: Plumbing design build firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 5,748 companies tracked

RevenueBase identified 5,748 company matches for plumbing design build firms associated with the United States as of September 2026 and tracks 58,438 professional contacts across them, including 20,729 with verified work emails. Houston is the largest hub.

This list covers company matches for plumbing design build firms associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 20, 2026 How this list was built

5,748Companies

58,438Contacts tracked

20,729Verified emails

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The 25 largest plumbing design build firms based in the United States

Ranked by team size

Top 25 of 5,748 company matches for plumbing design build firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Comfort Systems USA	Exact match	Houston, TX, United StatesHQ recorded Sep 20, 2026	10001+	1,330 contacts →
	Exact match “Comfort Systems USA \| Quality People.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2	Mckenney's, INC	Exact match	Atlanta, GA, United StatesHQ recorded Sep 20, 2026	1,001-5,000	1,077 contacts →
	Exact match “McKenney’s is the Southeast’s most trusted name in facility construction, operation and maintenance.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3	ME Engineers	Exact match	Golden, CO, United StatesHQ recorded Sep 20, 2026	201-500	696 contacts →
	Exact match “ME Engineers has earned a reputation as a global leader in the design of innovative MEPT systems that bring to life the world's most innovative sports and entertainment venues.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4	Murphy Company	Exact match	St. Louis, MO, United StatesHQ recorded Sep 20, 2026	1,001-5,000	579 contacts →
	Exact match “Per Colorado State Law Our CO Plumbing Contractor License Our Master Plumbing License is MP.03001288.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5	F.E. Moran Group Of Companies	Exact match	Northbrook, IL, United StatesHQ recorded Sep 20, 2026	1,001-5,000	564 contacts →
	Exact match “At F.E.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6	John W. Danforth Company	Exact match	Tonawanda, NY, United StatesHQ recorded Sep 20, 2026	501-1,000	415 contacts →
	Exact match “We are powered by the best people in the industry.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7	United Mechanical	Exact match	San Jose, CA, United StatesHQ recorded Sep 20, 2026	201-500	346 contacts →
	Exact match “United Mechanical specializes in HVAC and Plumbing systems design, construction, retrofit, repair, and 24/7 emergency service for commercial and industrial properties throughout…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8	Mtech Mechanical	Exact match	Westminster, CO, United StatesHQ recorded Sep 20, 2026	501-1,000	335 contacts →
	Exact match “Looking for a new opportunity with a growing organization that shares your values?” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9	Etna Supply	Exact match	Grand Rapids, MI, United StatesHQ recorded Sep 20, 2026	501-1,000	303 contacts →
	Exact match “Etna Supply is a family of companies committed to providing the essential products, expertise, and support that keep water moving and businesses running.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10	John E. Green Company	Exact match	Highland Park, MI, United StatesHQ recorded Sep 20, 2026	1,001-5,000	301 contacts →
	Exact match “In 1909, John E.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11	Kimbel Mechanical Systems INC	Exact match	Fayetteville, AR, United StatesHQ recorded Sep 20, 2026	501-1,000	297 contacts →
	Exact match “Kimbel Mechanical Systems, Inc.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12	SVM	Exact match	San Jose, CA, United StatesHQ recorded Sep 20, 2026	501-1,000	293 contacts →
	Exact match “SVM is a full service mechanical contractor, specializing in design-build commercial HVAC, plumbing, and service / maintenance, including 24-hour emergency services.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13	WDF INC	Exact match	Mount Vernon, NY, United StatesHQ recorded Sep 20, 2026	501-1,000	283 contacts →
	Exact match “WDF Inc.(founded in 1929) is one of the nation’s leading plumbing, HVAC contracting and specialty general contracting companies.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14	Batchelor & Kimball, INC	Exact match	Conyers, GA, United StatesHQ recorded Sep 20, 2026	1,001-5,000	270 contacts →
	Exact match “Batchelor & Kimball is a mechanical engineering and plumbing contractor specializing in projects that call for advanced expertise and problem-solving.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15	Kilgore Industries, LP	Exact match	Houston, TX, United StatesHQ recorded Sep 20, 2026	501-1,000	255 contacts →
	Exact match “Kilgore Industries, LP offers turnkey mechanical contracting services including electrical and plumbing construction solutions.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16	AMPAM	Exact match	Carson, CA, United StatesHQ recorded Sep 20, 2026	1,001-5,000	251 contacts →
	Exact match “AMPAM is California’s #1 design-build Mechanical, Electrical, and Plumbing subcontractor, specializing in high-density residential, hospitality and commercial projects.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17	The Korte Company	Exact match	St. Louis, MO, United StatesHQ recorded Sep 20, 2026	201-500	243 contacts →
	Exact match “The Korte Company was founded in 1958 on the belief that professionalism, quality and value added services are fundamental to a successful company.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18	Dick Anderson Construction	Exact match	Helena, MT, United StatesHQ recorded Sep 20, 2026	501-1,000	232 contacts →
	Exact match “We provide full service design-build services as well as construction management for civil, industrial, commercial construction projects, and luxury homes.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19	Shapiro & Duncan, INC	Exact match	Rockville, MD, United StatesHQ recorded Sep 20, 2026	201-500	225 contacts →
	Exact match “Shapiro and Duncan is a full service Plumbing and HVAC construction company based in Rockville, Maryland since 1976.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20	Tweet Garot Mechanical, INC	Exact match	De Pere, WI, United StatesHQ recorded Sep 20, 2026	501-1,000	207 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21	MLN Company	Exact match	Stafford, TX, United StatesHQ recorded Sep 20, 2026	501-1,000	203 contacts →
	Exact match “MLN has provided the best systems and services in mechanical contracting for nearly three decades.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22	R.T. Moore	Exact match	Indianapolis, IN, United StatesHQ recorded Sep 20, 2026	501-1,000	193 contacts →
	Exact match “For 70 years, family owned and operated R.T.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23	Haller Enterprises	Exact match	Lititz, PA, United StatesHQ recorded Sep 20, 2026	201-500	191 contacts →
	Exact match “Since 1981, Haller Enterprises has proudly served central and eastern Pennsylvania as a leader in heating, cooling, plumbing, and electrical services.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24	Total Mechanical	Exact match	Pewaukee, WI, United StatesHQ recorded Sep 20, 2026	201-500	186 contacts →
	Exact match “TOTAL Mechanical is a single-source mechanical contractor, specializing in the design, engineering, manufacturing, installation, maintenance and repair of commercial, industrial…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25	L&s Mechanical	Exact match	Richardson, TX, United StatesHQ recorded Sep 20, 2026	501-1,000	186 contacts →
	Exact match “L&S Mechanical began as a Dallas-based contractor in 1985 and has grown over the years to have six locations out of Dallas, Fort Worth, Houston, San Antonio, and Austin.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “plumbing design build firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 5,748 plumbing design build firms based in the United States

See the full list, filter by size, metro and specialty, and access 20,729 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Plumbing design build firms based in the United States at a glance

As of Sep 20, 2026

35.5%Verified-email coverage

10.2Average contacts per company

11-50Median size (employees)

1.3%Largest-city concentration · Houston

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

2,782

11-50

2,039

51-200

670

201-500

142

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 5,748 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United States whose business descriptions match “plumbing design build firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 20,729 professional contacts with verified work emails across the full matched dataset. 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 20, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Plumbing design build firms by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “plumbing design build firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many plumbing design build firms are there based in the United States?

RevenueBase identified 5,748 company matches for plumbing design build firms associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Comfort Systems USA tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most plumbing design build firms?

Houston leads with 72 company records, followed by New York (62) and Phoenix (48).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 20,729 professional contacts with verified work emails tracked across these 5,748 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 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 SmartSearch, 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.