Top HVAC companies in the USA
| Company Name | Country | City | Address 1 | State/Province | Postal Code | Website | Founding Year | Yearly Revenue in U.S. Dollars | Employees Total | Business Legal Type - Description | Number of Companies in Group | Company Registration Number | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Southland Industries | USA | Garden Grove | 12131 Western Ave | Orange | 92841-2914 | southlandind.***** | 1949 | $3,951,185,634 | 2,150 | Corporation | 31 | 951596533 |
| 2 | Sunrun INC. | USA | San Francisco | 600 California St Fl 18 | San Francisco | 94108 | sunrun.***** | 2007 | $2,956,997,000 | 9,059 | Corporation | 397 | 4564662 |
| 3 | Paloma Rheem Investments, INC. | USA | New York | 405 Lexington Ave Fl 26 | New York | 10174-2699 | N/A | 1984 | $2,103,219,582 | 6,500 | Corporation | 352 | N/A |
| 4 | Acco Engineered Systems, INC. | USA | Pasadena | 888 E Walnut St | Los Angeles | 91101-1895 | accoes.***** | 1934 | $1,512,722,000 | 1,950 | Corporation | 34 | 0246091 |
| 5 | Mes Holding CORPORATION | USA | Norwalk | 301 Merritt 7 | Ct | 06851-1070 | emcorgroup.***** | 1994 | $1,176,910,439 | 700 | Corporation | 524 | N/A |
| 6 | Emcor Construction Services, INC. | USA | Norwalk | 301 Merritt 7 Fl 6 | Ct | 06851-1052 | emcorgroup.***** | 1992 | $1,176,910,439 | 700 | Corporation | 524 | 2295158 |
| 7 | Mckinstry CO., LLC | USA | Seattle | 5005 3rd Ave S | King | 98134-2423 | mckinstry.***** | 1960 | $961,119,328 | 1,300 | Corporation | 20 | 910715040 |
| 8 | Mx Holdings Us, INC. | USA | Irvine | 153 Technology Dr Ste 200 | Orange | 92618 | cfpfire.***** | 1997 | $848,307,109 | 1,790 | Corporation | 41 | 202356604 |
| 9 | Sunnova Energy International INC. | USA | Houston | 20 Greenway Plz Ste 540 | Harris | 77046 | sunnova.***** | 2012 | $839,922,000 | 1,796 | Corporation | 130 | 7353308 |
| 10 | Delcor, Incorporated | USA | Greenville | 834 Rivit St | Pitt | 27834-0846 | delcorinc.***** | 1984 | $795,879,599 | 2,100 | Corporation | 55 | 0343360 |
| 11 | Dynamic Systems (dsi), LLC | USA | Austin | 3901 S Lamar Blvd Ste 300 | Travis | 78704-8718 | dsi.***** | 2025 | $734,443,750 | 1,900 | Corporation | 666 | 0109382500 |
| 12 | Limbach Facility Services L.L.C. | USA | Warrendale | 797 Commonwealth Dr | Allegheny | 15086-7520 | limbachinc.***** | 2002 | $725,333,517 | 1,011 | Corporation | 28 | 3555585 |
| 13 | Limbach Holdings LLC | USA | Warrendale | 797 Commonwealth Dr | Allegheny | 15086-7520 | limbachinc.***** | 1994 | $725,333,517 | 1,066 | Corporation | 28 | 3588231 |
| 14 | Premistar, LLC | USA | Deerfield | 10 Parkway North Blvd Ste 100 | Lake | 60015-2526 | premistar.***** | 1968 | $643,366,472 | 2,800 | Corporation | 60 | 688822 |
| 15 | Tesla Energy Operations, INC. | USA | San Mateo | 3055 Clearview Way | San Mateo | 94402-3709 | tesla.***** | 2016 | $614,199,024 | 12,000 | Corporation | 1481 | 4178768 |
| 16 | American Residential Services LLC | USA | Memphis | 965 Ridge Lake Blvd Ste 201 | Shelby | 38120-9401 | ars.***** | 2014 | $611,574,990 | 8,030 | Corporation | 151 | 2823327 |
| 17 | Zone Mechanical, LLC | USA | Alsip | 12539 S Holiday Dr Ste A | Cook | 60803-3255 | smartcaresolutions.***** | 2021 | $609,646,459 | 928 | Corporation | 223 | N/A |
| 18 | J. F. Ahern CO. | USA | Fond Du Lac | 855 Morris St | Fond Du Lac | 54935-5611 | jfahern.***** | 1880 | $596,225,972 | 855 | Corporation | 17 | 1 A01731 |
| 19 | Vsc Fire & Security, INC. | USA | Richmond | 1800 Bayberry Ct | Richmond City | 23226-3774 | vscfire.***** | 1990 | $592,891,840 | 1,200 | Corporation | 438 | 03544186 |
| 20 | American Residential Services Of Indiana, INC. | USA | Saint Louis | 10403 Baur Blvd Ste E | St. Louis City | 63132-1910 | ars.***** | 1982 | $554,098,983 | 7,500 | Corporation | 151 | N/A |
| 21 | Ares Holdings, LLC | USA | Melbourne | 1045 S John Rodes Blvd Frnt | Brevard | 32904-2000 | nextechna.***** | 2002 | $545,768,388 | 2,300 | Corporation | 19 | 651162436 |
| 22 | Conti LLC | USA | Sterling Heights | 6417 Center Dr | Macomb | 48312-2600 | conticorporation.***** | 1969 | $537,720,219 | 2,649 | Corporation | 5727 | 802339748 |
| 23 | Apex Service Partners, LLC | USA | Irving | 1431 Greenway Dr Ste 200 | Dallas | 75038-2584 | N/A | 2019 | $533,784,462 | 12,952 | Corporation | 20 | 7449904 |
| 24 | Century Fire Protection, LLC | USA | Duluth | 2450 Satellite Blvd | Gwinnett | 30096-5801 | centuryfp.***** | 2016 | $530,407,388 | 900 | Corporation | 327 | 200260469 |
| 25 | Wrench Group LLC | USA | Sarasota | 1819 Main St Ste 1300 | Sarasota | 34236 | N/A | 2016 | $523,992,376 | 702 | Corporation | 33 | 5967537 |
Showing 25 of 468,199 companies
Request Free SampleHVAC companies in the USA by state
468,199 HVAC companies across 49 US states. Hover any state to see its share of the US HVAC companies market.
HVAC companies in the USA by employee size
| Bracket | Companies | Share |
|---|---|---|
| 1-4 | 404,378 | |
| 5-9 | 36,658 | |
| 10-19 | 14,517 | |
| 20-49 | 8,020 | |
| 50-99 | 2,376 | |
| 0 or Unknown | 1,079 | |
| 100-199 | 792 | |
| 200-499 | 301 | |
| 500-999 | 53 | |
| 1.000-4.999 | 24 | |
| 5.000-9.999 | 1 |
HVAC companies in the USA by revenue
| Bracket | Companies | Share |
|---|---|---|
| 100.001 to 499.999 | 214,928 | |
| 1 to 100.000 | 195,637 | |
| 500.000 to 999.999 | 22,451 | |
| 1.000.000 to 4.999.999 | 19,994 | |
| 0 or Unknown | 9,504 | |
| 5.000.000 to 9.999.999 | 3,373 | |
| 10.000.000 to 49.999.999 | 1,973 | |
| 50.000.000 to 99.999.999 | 197 | |
| 100.000.000 to 499.999.999 | 112 | |
| 500.000.000 to 999.999.999 | 24 | |
| 1.000.000.000 or more | 6 |
SIC and industry classification for US HVAC companies
US HVAC companies fall under the Construction SIC division. The primary US SIC 1987 code is 1711: Plumbing/Heating/AC. The list above covers every active US company tagged with this code plus closely related codes, so the state and revenue breakdowns reflect the entire sector rather than a sample.
Closely related business services
Frequently asked questions about HVAC companies in the USA
Our database tracks 468,199 active HVAC companies across all 50 US states, sourced from Secretary of State filings and verified monthly. The exact count changes as firms register, dissolve and merge. The figure on this page reflects the most recent monthly refresh.
The state with the most HVAC companies is California, followed by California, Texas, Florida and New York. The full state breakdown above shows the share each US state holds, with deeplinks to drill into a single-state directory.
US HVAC companies are primarily covered by SIC 1987 code 1711 (Plumbing/Heating/AC). The list above covers every active US company tagged with this code plus closely related codes. The platform link beside each result also lets you filter by sub-code or by NAICS if you prefer.
Yes. Apply your filters (state, size, revenue, etc.) on the platform, preview the result on screen, then export the full filtered list as CSV or Excel. Larger exports (10k+ rows) are delivered by email link. Request a free sample first if you want to evaluate the data before you buy.
Every record includes the firm name, full business address, primary phone, business email (where available), website, employee size, revenue band, founding year and primary SIC / NAICS classification. Records are enriched from the US business register and re-verified monthly.
Monthly. Each refresh removes firms that have dissolved and adds new registrations from the latest Secretary of State filings. The "Last updated" line at the top of this page shows the most recent refresh date.
49 US states have at least one active HVAC companie in our database. The state with most HVAC companies is California, followed by California, Texas, Florida and New York. Use the interactive state map above to compare any two states by share of the US HVAC companies market.
