Company lists · Data refreshed October 2026
Top 25 Building systems contractors based in the United States
RevenueBase identified 4,105 company matches for building systems contractors associated with the United States as of October 2026 and tracks 123,675 professional contacts across them, including 52,848 with verified work emails. New York is the largest hub.
This list covers company matches for building systems contractors 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 October 9, 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.
The 25 largest building systems contractors based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,010 contacts → | ||||
Exact match “As one of the nation's largest building systems experts, Southland Industries provides innovative, practical results for your engineering, construction, service, and energy needs.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 2 | 2,573 contacts → | ||||
Exact match “Since 1934, owners and builders have selected ACCO Engineered Systems to design, install, and maintain more than mechanical projects.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 3 | 2,536 contacts → | ||||
Exact match “Power Design is a National Design Build Contractor, focused on innovative construction across multiple trades: electrical, mechanical, plumbing, and systems technologies.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 4 | 1,443 contacts → | ||||
Exact match “A Fortune 500® company and a member of the S&P 500, EMCOR Group, Inc.(NYSE: EME) is a leader in mechanical and electrical construction, industrial and energy infrastructure, and…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 5 | 1,365 contacts → | ||||
Exact match “MacDonald-Miller Facility Solutions is a full-service, design-build mechanical contractor in the Pacific Northwest.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 6 | 1,354 contacts → | ||||
Exact match “Comfort Systems USA | Quality People.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 7 | 1,096 contacts → | ||||
Exact match “Henderson Engineers is a national building systems design firm with a wide array of engineering services and a portfolio representing a full range of markets including business…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 8 | 1,088 contacts → | ||||
Exact match “McKenney’s is the Southeast’s most trusted name in facility construction, operation and maintenance.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 9 | 1,059 contacts → | ||||
Exact match “Affiliated Engineers, Inc.(AEI) provides engineering leadership and whole-mission solutions for complex building, energy, and utility projects.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 10 | 1,025 contacts → | ||||
Exact match “Harris is a leading national mechanical contractor specializing in design and engineering, construction, controls, service, manufacturing, conveyors and end-to-end building…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 11 | 1,016 contacts → | ||||
Exact match “CMTA is part of Legence, a Nasdaq Listed company.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 12 | 922 contacts → | ||||
Exact match “Stellar, headquartered in Jacksonville, Florida, is a fully integrated firm focusing on design, engineering, construction, refrigeration, and mechanical and electrical services…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 13 | 884 contacts → | ||||
Exact match “Ahern is a mechanical and fire protection contractor specializing in HVAC, Plumbing, Building Controls, Sprinkler, Extinguisher & Alarm and Fabrication for construction and…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 14 | 880 contacts → | ||||
Exact match “ArchKey, one of the largest privately held specialty trade installation and facilities services companies in the United States, is a leader in designing, building, and maintaining…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 15 | 776 contacts → | ||||
Exact match “Limbach is a leading building solutions firm delivering mission critical infrastructure that supports life’s most important moments.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 16 | 718 contacts → | ||||
Exact match “Apollo is based in Kennewick, Washington, performing Full Mechanical projects across the United States and around the world.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 17 | 710 contacts → | ||||
Exact match “Established in 1963, Baker Group is Iowa’s premier full-service specialty contractor-serving commercial, industrial, institutional, and mission-critical markets across the country.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 18 | 709 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 · Oct 9, 2026 · View company records in RevenueBase | |||||
| 19 | 658 contacts → | ||||
Exact match “Albireo Energy is a leading independent building controls and energy services provider recognized by customers for creating intelligent, high-performance buildings.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 20 | 615 contacts → | ||||
Exact match “Since 1923, Alterman has provided electrical construction on many of San Antonio and Austin's most impressive landmarks and contemporary structures.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 21 | 592 contacts → | ||||
Exact match “At F.E.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 22 | 585 contacts → | ||||
Exact match “ColonialWebb is built on a simple belief: when people feel like they belong and have a purpose, they can achieve almost anything.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 23 | 572 contacts → | ||||
Exact match “For generations, EAS Companies has been an innovative provider delivering complete solutions in mechanical, electrical, plumbing, building services, controls, and engineered…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 24 | 562 contacts → | ||||
Exact match “Vanderweil is a mechanical, electrical, plumbing, fire protection, technology, sustainability, commissioning, and power engineering firm dedicated to providing customized and…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 25 | 537 contacts → | ||||
Exact match “DEEM, LLC is a mechanical and electrical company centrally located in Fishers, Indiana with satellite offices throughout the Midwest down to the southeastern United States.” Recorded in the RevenueBase company graph · Oct 9, 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 “building systems contractors”. 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 4,105 building systems contractors based in the United States
See the full list, filter by size, metro and specialty, and access 52,848 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Building systems contractors based in the United States at a glance
As of Oct 9, 2026Companies by employee count
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 4,105 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 “building systems contractors” 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 52,848 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 October 9, 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.
Building systems contractors by metro
- Building systems contractors in New York80
- Building systems contractors in Houston69
- Building systems contractors in Indianapolis33
- Building systems contractors in Miami29
- Building systems contractors in Phoenix29
- Building systems contractors in Dallas28
- Building systems contractors in San Diego27
- Building systems contractors in Charlotte26
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 “building systems contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many building systems contractors are there based in the United States?
RevenueBase identified 4,105 company matches for building systems contractors associated with the United States as of October 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?
Southland Industries tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most building systems contractors?
New York leads with 80 company records, followed by Houston (69) and Indianapolis (33).
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 52,848 professional contacts with verified work emails tracked across these 4,105 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 October 9, 2026.
Ready to reach these companies? Verified emails and direct dials for all 4,105 building systems contractors based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Building systems contractors by geography
- Building systems contractors based in Sydney, Australia
- Building systems contractors based in Sao Paulo, Brazil
- Building systems contractors based in Calgary, Canada
- Building systems contractors based in Edmonton, Canada
- Building systems contractors based in Mississauga, Canada
- Building systems contractors based in Toronto, Canada
- Building systems contractors based in Berlin, Germany
- Building systems contractors based in Milan, Italy
- Building systems contractors based in Rome, Italy
- Building systems contractors based in Warsaw, Poland
- Building systems contractors based in Bucharest, Romania
- Building systems contractors based in Madrid, Spain
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Building systems contractors based in Sydney, Australia
- Building systems contractors based in Sao Paulo, Brazil
- Building systems contractors based in Calgary, Canada
- Building systems contractors based in Edmonton, Canada
- Building systems contractors based in Mississauga, Canada
- Building systems contractors based in Toronto, Canada
Company intelligence · public preview
Top 25 building systems contractors based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 4,105 matching company records for building systems contractors based in the United States, with 123,675 tracked contacts and 52,848 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 9, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 building systems contractors based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Southland Industriessouthlandind.com HQ: Garden Grove, CA, United StatesReported employees: 10001+ | Garden Grove, CA, United States | 10001+ | Exact match | 3,010 contacts → |
“As one of the nation's largest building systems experts, Southland Industries provides innovative, practical results for your engineering, construction, service, and energy needs.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Acco Engineered Systemsaccoes.comHQ: Pasadena, CA, United StatesReported employees: 5,001-10,000 | Pasadena, CA, United States | 5,001-10,000 | Exact match | 2,573 contacts → |
“Since 1934, owners and builders have selected ACCO Engineered Systems to design, install, and maintain more than mechanical projects.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Power Designpowerdesigninc.us HQ: St. Petersburg, FL, United StatesReported employees: 1,001-5,000 | St. Petersburg, FL, United States | 1,001-5,000 | Exact match | 2,536 contacts → |
“Power Design is a National Design Build Contractor, focused on innovative construction across multiple trades: electrical, mechanical, plumbing, and systems technologies.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Emcor Group, INCemcorgroup.com HQ: Norwalk, CT, United StatesReported employees: 10001+ | Norwalk, CT, United States | 10001+ | Exact match | 1,443 contacts → |
“A Fortune 500® company and a member of the S&P 500, EMCOR Group, Inc.(NYSE: EME) is a leader in mechanical and electrical construction, industrial and energy infrastructure, and…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Macdonald-Miller Facility Solutionsmacmiller.com HQ: Seatac, WA, United StatesReported employees: 1,001-5,000 | Seatac, WA, United States | 1,001-5,000 | Exact match | 1,365 contacts → |
“MacDonald-Miller Facility Solutions is a full-service, design-build mechanical contractor in the Pacific Northwest.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Comfort Systems USAcomfortsystemsusa.comHQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 1,354 contacts → |
“Comfort Systems USA | Quality People.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Henderson Engineershendersonengineers.com HQ: Lenexa, KS, United StatesReported employees: 501-1,000 | Lenexa, KS, United States | 501-1,000 | Exact match | 1,096 contacts → |
“Henderson Engineers is a national building systems design firm with a wide array of engineering services and a portfolio representing a full range of markets including business…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Mckenney's, INCmckenneys.comHQ: Atlanta, GA, United StatesReported employees: 1,001-5,000 | Atlanta, GA, United States | 1,001-5,000 | Exact match | 1,088 contacts → |
“McKenney’s is the Southeast’s most trusted name in facility construction, operation and maintenance.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Affiliated Engineers, INCaeieng.comHQ: Madison, WI, United StatesReported employees: 1,001-5,000 | Madison, WI, United States | 1,001-5,000 | Exact match | 1,059 contacts → |
“Affiliated Engineers, Inc.(AEI) provides engineering leadership and whole-mission solutions for complex building, energy, and utility projects.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Harrisharriscompany.com HQ: St. Paul, MN, United StatesReported employees: 1,001-5,000 | St. Paul, MN, United States | 1,001-5,000 | Exact match | 1,025 contacts → |
“Harris is a leading national mechanical contractor specializing in design and engineering, construction, controls, service, manufacturing, conveyors and end-to-end building…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Cmta, INCcmta.comHQ: Louisville, KY, United StatesReported employees: 501-1,000 | Louisville, KY, United States | 501-1,000 | Exact match | 1,016 contacts → |
“CMTA is part of Legence, a Nasdaq Listed company.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Stellarstellar.netHQ: Jacksonville, FL, United StatesReported employees: 501-1,000 | Jacksonville, FL, United States | 501-1,000 | Exact match | 922 contacts → |
“Stellar, headquartered in Jacksonville, Florida, is a fully integrated firm focusing on design, engineering, construction, refrigeration, and mechanical and electrical services…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  AHERNjfahern.comHQ: Fond Du Lac, WI, United StatesReported employees: 1,001-5,000 | Fond Du Lac, WI, United States | 1,001-5,000 | Exact match | 884 contacts → |
“Ahern is a mechanical and fire protection contractor specializing in HVAC, Plumbing, Building Controls, Sprinkler, Extinguisher & Alarm and Fabrication for construction and…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Archkey Solutionsarchkey.comHQ: St. Louis, MO, United StatesReported employees: 1,001-5,000 | St. Louis, MO, United States | 1,001-5,000 | Exact match | 880 contacts → |
“ArchKey, one of the largest privately held specialty trade installation and facilities services companies in the United States, is a leader in designing, building, and maintaining…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Limbachlimbachinc.comHQ: Tampa, FL, United StatesReported employees: 1,001-5,000 | Tampa, FL, United States | 1,001-5,000 | Exact match | 776 contacts → |
“Limbach is a leading building solutions firm delivering mission critical infrastructure that supports life’s most important moments.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Apollo Mechanical Contractorsapollomech.comHQ: Kennewick, WA, United StatesReported employees: 1,001-5,000 | Kennewick, WA, United States | 1,001-5,000 | Exact match | 718 contacts → |
“Apollo is based in Kennewick, Washington, performing Full Mechanical projects across the United States and around the world.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Baker Groupthebakergroup.comHQ: Ankeny, IA, United StatesReported employees: 1,001-5,000 | Ankeny, IA, United States | 1,001-5,000 | Exact match | 710 contacts → |
“Established in 1963, Baker Group is Iowa’s premier full-service specialty contractor-serving commercial, industrial, institutional, and mission-critical markets across the country.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  ME Engineersme-engineers.comHQ: Golden, CO, United StatesReported employees: 201-500 | Golden, CO, United States | 201-500 | Exact match | 709 contacts → |
“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 description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Albireo Energyalbireoenergy.comHQ: Edison, NJ, United StatesReported employees: 1,001-5,000 | Edison, NJ, United States | 1,001-5,000 | Exact match | 658 contacts → |
“Albireo Energy is a leading independent building controls and energy services provider recognized by customers for creating intelligent, high-performance buildings.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Alterman, INCgoalterman.comHQ: Live Oak, TX, United StatesReported employees: 501-1,000 | Live Oak, TX, United States | 501-1,000 | Exact match | 615 contacts → |
“Since 1923, Alterman has provided electrical construction on many of San Antonio and Austin's most impressive landmarks and contemporary structures.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  F.E. Moran Group Of Companiesfemoran.comHQ: Northbrook, IL, United StatesReported employees: 1,001-5,000 | Northbrook, IL, United States | 1,001-5,000 | Exact match | 592 contacts → |
“At F.E.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Colonialwebbcolonialwebb.com HQ: Richmond, VA, United StatesReported employees: 1,001-5,000 | Richmond, VA, United States | 1,001-5,000 | Exact match | 585 contacts → |
“ColonialWebb is built on a simple belief: when people feel like they belong and have a purpose, they can achieve almost anything.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Environmental AIR Systemseasinc.netHQ: High Point, NC, United StatesReported employees: 1,001-5,000 | High Point, NC, United States | 1,001-5,000 | Exact match | 572 contacts → |
“For generations, EAS Companies has been an innovative provider delivering complete solutions in mechanical, electrical, plumbing, building services, controls, and engineered…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Vanderweil Engineersvanderweil.comHQ: Boston, MA, United StatesReported employees: 201-500 | Boston, MA, United States | 201-500 | Exact match | 562 contacts → |
“Vanderweil is a mechanical, electrical, plumbing, fire protection, technology, sustainability, commissioning, and power engineering firm dedicated to providing customized and…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Deem, LLCdeemfirst.comHQ: Indianapolis, IN, United StatesReported employees: 1,001-5,000 | Indianapolis, IN, United States | 1,001-5,000 | Exact match | 537 contacts → |
“DEEM, LLC is a mechanical and electrical company centrally located in Fishers, Indiana with satellite offices throughout the Midwest down to the southeastern United States.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 4,105 company matches
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Building systems contractors: dataset insights
October 9, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
4,097 records in the displayed employee bands.
8 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 4,105 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 9, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Building systems contractors by metro
- Building systems contractors in New York80
- Building systems contractors in Houston69
- Building systems contractors in Indianapolis33
- Building systems contractors in Miami29
- Building systems contractors in Phoenix29
- Building systems contractors in Dallas28
- Building systems contractors in San Diego27
- Building systems contractors in Charlotte26
Questions about this company list
What does Exact match mean for building systems contractors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many building systems contractors did RevenueBase find based in the United States?
The saved snapshot records 4,105 matching company records, 123,675 tracked contacts and 52,848 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 9, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Building systems contractors by geography
- Building systems contractors based in Sydney, Australia
- Building systems contractors based in Sao Paulo, Brazil
- Building systems contractors based in Calgary, Canada
- Building systems contractors based in Edmonton, Canada
- Building systems contractors based in Mississauga, Canada
- Building systems contractors based in Toronto, Canada
- Building systems contractors based in Berlin, Germany
- Building systems contractors based in Milan, Italy
- Building systems contractors based in Rome, Italy
- Building systems contractors based in Warsaw, Poland
- Building systems contractors based in Bucharest, Romania
- Building systems contractors based in Madrid, Spain
Cite this list
RevenueBase Data Team. Top 25 building systems contractors based in the United States. Snapshot: October 9, 2026. https://revenuebase.ai/companies/building-systems-contractors/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Building systems contractors based in Sydney, Australia
- Building systems contractors based in Sao Paulo, Brazil
- Building systems contractors based in Calgary, Canada
- Building systems contractors based in Edmonton, Canada
- Building systems contractors based in Mississauga, Canada
- Building systems contractors based in Toronto, Canada
Company intelligence · public preview
Top 25 building systems contractors based in the United States
RevenueBase records 4,105 matching company records for building systems contractors based in the United States, with 123,675 tracked contacts and 52,848 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 9, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 building systems contractors based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Southland Industriessouthlandind.com HQ: Garden Grove, CA, United StatesReported employees: 10001+ | Garden Grove, CA, United States | 10001+ | Exact match | 3,010 contacts → |
“As one of the nation's largest building systems experts, Southland Industries provides innovative, practical results for your engineering, construction, service, and energy needs.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Acco Engineered Systemsaccoes.com HQ: Pasadena, CA, United StatesReported employees: 5,001-10,000 | Pasadena, CA, United States | 5,001-10,000 | Exact match | 2,573 contacts → |
“Since 1934, owners and builders have selected ACCO Engineered Systems to design, install, and maintain more than mechanical projects.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Power Designpowerdesigninc.us HQ: St. Petersburg, FL, United StatesReported employees: 1,001-5,000 | St. Petersburg, FL, United States | 1,001-5,000 | Exact match | 2,536 contacts → |
“Power Design is a National Design Build Contractor, focused on innovative construction across multiple trades: electrical, mechanical, plumbing, and systems technologies.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Emcor Group, INCemcorgroup.com HQ: Norwalk, CT, United StatesReported employees: 10001+ | Norwalk, CT, United States | 10001+ | Exact match | 1,443 contacts → |
“A Fortune 500® company and a member of the S&P 500, EMCOR Group, Inc.(NYSE: EME) is a leader in mechanical and electrical construction, industrial and energy infrastructure, and…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Macdonald-Miller Facility Solutionsmacmiller.com HQ: Seatac, WA, United StatesReported employees: 1,001-5,000 | Seatac, WA, United States | 1,001-5,000 | Exact match | 1,365 contacts → |
“MacDonald-Miller Facility Solutions is a full-service, design-build mechanical contractor in the Pacific Northwest.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Comfort Systems USAcomfortsystemsusa.com HQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 1,354 contacts → |
“Comfort Systems USA | Quality People.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Henderson Engineershendersonengineers.com HQ: Lenexa, KS, United StatesReported employees: 501-1,000 | Lenexa, KS, United States | 501-1,000 | Exact match | 1,096 contacts → |
“Henderson Engineers is a national building systems design firm with a wide array of engineering services and a portfolio representing a full range of markets including business…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Mckenney's, INCmckenneys.com HQ: Atlanta, GA, United StatesReported employees: 1,001-5,000 | Atlanta, GA, United States | 1,001-5,000 | Exact match | 1,088 contacts → |
“McKenney’s is the Southeast’s most trusted name in facility construction, operation and maintenance.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Affiliated Engineers, INCaeieng.com HQ: Madison, WI, United StatesReported employees: 1,001-5,000 | Madison, WI, United States | 1,001-5,000 | Exact match | 1,059 contacts → |
“Affiliated Engineers, Inc.(AEI) provides engineering leadership and whole-mission solutions for complex building, energy, and utility projects.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Harrisharriscompany.com HQ: St. Paul, MN, United StatesReported employees: 1,001-5,000 | St. Paul, MN, United States | 1,001-5,000 | Exact match | 1,025 contacts → |
“Harris is a leading national mechanical contractor specializing in design and engineering, construction, controls, service, manufacturing, conveyors and end-to-end building…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Cmta, INCcmta.com HQ: Louisville, KY, United StatesReported employees: 501-1,000 | Louisville, KY, United States | 501-1,000 | Exact match | 1,016 contacts → |
“CMTA is part of Legence, a Nasdaq Listed company.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Stellarstellar.net HQ: Jacksonville, FL, United StatesReported employees: 501-1,000 | Jacksonville, FL, United States | 501-1,000 | Exact match | 922 contacts → |
“Stellar, headquartered in Jacksonville, Florida, is a fully integrated firm focusing on design, engineering, construction, refrigeration, and mechanical and electrical services…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | AHERNjfahern.com HQ: Fond Du Lac, WI, United StatesReported employees: 1,001-5,000 | Fond Du Lac, WI, United States | 1,001-5,000 | Exact match | 884 contacts → |
“Ahern is a mechanical and fire protection contractor specializing in HVAC, Plumbing, Building Controls, Sprinkler, Extinguisher & Alarm and Fabrication for construction and…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Archkey Solutionsarchkey.com HQ: St. Louis, MO, United StatesReported employees: 1,001-5,000 | St. Louis, MO, United States | 1,001-5,000 | Exact match | 880 contacts → |
“ArchKey, one of the largest privately held specialty trade installation and facilities services companies in the United States, is a leader in designing, building, and maintaining…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Limbachlimbachinc.com HQ: Tampa, FL, United StatesReported employees: 1,001-5,000 | Tampa, FL, United States | 1,001-5,000 | Exact match | 776 contacts → |
“Limbach is a leading building solutions firm delivering mission critical infrastructure that supports life’s most important moments.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Apollo Mechanical Contractorsapollomech.com HQ: Kennewick, WA, United StatesReported employees: 1,001-5,000 | Kennewick, WA, United States | 1,001-5,000 | Exact match | 718 contacts → |
“Apollo is based in Kennewick, Washington, performing Full Mechanical projects across the United States and around the world.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Baker Groupthebakergroup.com HQ: Ankeny, IA, United StatesReported employees: 1,001-5,000 | Ankeny, IA, United States | 1,001-5,000 | Exact match | 710 contacts → |
“Established in 1963, Baker Group is Iowa’s premier full-service specialty contractor-serving commercial, industrial, institutional, and mission-critical markets across the country.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | ME Engineersme-engineers.com HQ: Golden, CO, United StatesReported employees: 201-500 | Golden, CO, United States | 201-500 | Exact match | 709 contacts → |
“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 description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Albireo Energyalbireoenergy.com HQ: Edison, NJ, United StatesReported employees: 1,001-5,000 | Edison, NJ, United States | 1,001-5,000 | Exact match | 658 contacts → |
“Albireo Energy is a leading independent building controls and energy services provider recognized by customers for creating intelligent, high-performance buildings.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Alterman, INCgoalterman.com HQ: Live Oak, TX, United StatesReported employees: 501-1,000 | Live Oak, TX, United States | 501-1,000 | Exact match | 615 contacts → |
“Since 1923, Alterman has provided electrical construction on many of San Antonio and Austin's most impressive landmarks and contemporary structures.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | F.E. Moran Group Of Companiesfemoran.com HQ: Northbrook, IL, United StatesReported employees: 1,001-5,000 | Northbrook, IL, United States | 1,001-5,000 | Exact match | 592 contacts → |
“At F.E.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Colonialwebbcolonialwebb.com HQ: Richmond, VA, United StatesReported employees: 1,001-5,000 | Richmond, VA, United States | 1,001-5,000 | Exact match | 585 contacts → |
“ColonialWebb is built on a simple belief: when people feel like they belong and have a purpose, they can achieve almost anything.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Environmental AIR Systemseasinc.net HQ: High Point, NC, United StatesReported employees: 1,001-5,000 | High Point, NC, United States | 1,001-5,000 | Exact match | 572 contacts → |
“For generations, EAS Companies has been an innovative provider delivering complete solutions in mechanical, electrical, plumbing, building services, controls, and engineered…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Vanderweil Engineersvanderweil.com HQ: Boston, MA, United StatesReported employees: 201-500 | Boston, MA, United States | 201-500 | Exact match | 562 contacts → |
“Vanderweil is a mechanical, electrical, plumbing, fire protection, technology, sustainability, commissioning, and power engineering firm dedicated to providing customized and…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Deem, LLCdeemfirst.com HQ: Indianapolis, IN, United StatesReported employees: 1,001-5,000 | Indianapolis, IN, United States | 1,001-5,000 | Exact match | 537 contacts → |
“DEEM, LLC is a mechanical and electrical company centrally located in Fishers, Indiana with satellite offices throughout the Midwest down to the southeastern United States.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 4,105 company matches
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Building systems contractors: dataset insights
October 9, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
4,097 records in the displayed employee bands.
8 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 4,105 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 9, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Building systems contractors by metro
- Building systems contractors in New York80
- Building systems contractors in Houston69
- Building systems contractors in Indianapolis33
- Building systems contractors in Miami29
- Building systems contractors in Phoenix29
- Building systems contractors in Dallas28
- Building systems contractors in San Diego27
- Building systems contractors in Charlotte26
Questions about this company list
What does Exact match mean for building systems contractors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many building systems contractors did RevenueBase find based in the United States?
The saved snapshot records 4,105 matching company records, 123,675 tracked contacts and 52,848 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 9, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Building systems contractors by geography
- Building systems contractors based in Sydney, Australia
- Building systems contractors based in Sao Paulo, Brazil
- Building systems contractors based in Calgary, Canada
- Building systems contractors based in Edmonton, Canada
- Building systems contractors based in Mississauga, Canada
- Building systems contractors based in Toronto, Canada
- Building systems contractors based in Berlin, Germany
- Building systems contractors based in Milan, Italy
- Building systems contractors based in Rome, Italy
- Building systems contractors based in Warsaw, Poland
- Building systems contractors based in Bucharest, Romania
- Building systems contractors based in Madrid, Spain
Cite this list
RevenueBase Data Team. Top 25 building systems contractors based in the United States. Snapshot: October 9, 2026. https://revenuebase.ai/companies/building-systems-contractors/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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