> Enrich.chat gives AI agents verified work emails and mobiles. To use it from an agent, read https://enrich.chat/agents.md . This is the Markdown version of https://enrich.chat/naics/238220/texas/ # NAICS 238220 companies in Texas Companies with NAICS code 238220 (Plumbing, Heating, and Air-Conditioning Contractors) headquartered in Texas, with their cities, sizes and SIC codes. By Enrich.chat Editorial. Updated October 22, 2026. **Short answer:** The biggest NAICS 238220 companies in Texas by headcount range include Comfort Systems Usa, Service Experts and Firetrol Protection Systems. NAICS 238220 is the code for Plumbing, Heating, and Air-Conditioning Contractors. Among those counted, they are mostly very small: 74% have 50 or fewer employees. ## Which NAICS 238220 companies are in Texas? The biggest by headcount range include Comfort Systems Usa, Service Experts, Firetrol Protection Systems, Way Engineering and Kilgore Industries. NAICS 238220 is the code for Plumbing, Heating, and Air-Conditioning Contractors. Names link to a company profile where we have one. | Company | City | Employees | | --- | --- | --- | | Comfort Systems Usa | Houston | 10,001+ | | Service Experts | Richardson | 1,001 to 5,000 | | Firetrol Protection Systems | Dallas | 1,001 to 5,000 | | Way Engineering | Houston | 501 to 1,000 | | Kilgore Industries | Houston | 501 to 1,000 | | Allied Fire Protection | Pearland | 501 to 1,000 | | Dynaten | Fort Worth | 201 to 500 | | Bravas | Austin | 201 to 500 | | Cleaver-Brooks Sales And Service | Dallas | 201 to 500 | | Letsos | Houston | 201 to 500 | | Hcl Mechanical Services | Houston | 201 to 500 | | Cfi Mechanical | Houston | 201 to 500 | | Graco Mechanical | Houston | 201 to 500 | | Power Plumbing | Hockley | 201 to 500 | | Dallas Plumbing | Dallas | 201 to 500 | | Mission Solar | San Antonio | 51 to 200 | | Rangel Renewables | Cypress | 51 to 200 | | Staxmatic | Addison | 51 to 200 | | Gray Mechanical Contractors | Houston | 51 to 200 | | Cooling Towers | Pasadena | 51 to 200 | | Raven Mechanical | Houston | 51 to 200 | | Texas Chiller Systems | San Antonio | 51 to 200 | | Venture Mechanical | Carrollton | 51 to 200 | | Synaptic Solar | Richardson | 51 to 200 | | Dallas Mechanical Group | Dallas | 51 to 200 | The table shows the 25 biggest by headcount range, with ties broken by audience size. The charts and percentages below cover every company counted for this page, not just these 25, and companies with fewer than 11 employees are not counted. Headquarters is the location on each company's public profile. ## Which cities in Texas? Within Texas, Houston (15%), Dallas (6%) and Austin (5%) are the most common headquarters. **Figure: Cities of NAICS 238220 companies in Texas.** Bars for the share of counted NAICS 238220 companies in Texas headquartered in each city: Houston 15%, Dallas 6%, Austin 5%, San Antonio 5%, Carrollton 3%, Fort Worth 3%, Arlington 2%, Grand Prairie 2%. *Share of counted NAICS 238220 companies in Texas by headquarters city.* ## How big are they? 74% of the NAICS 238220 companies counted in Texas have 50 or fewer employees, and the middle one is in the 11 to 50 range. Companies with fewer than 11 employees are not counted. **Figure: Size of NAICS 238220 companies in Texas.** Seven columns for the share of counted NAICS 238220 companies in Texas in each employee range: 11 to 50 74%, 51 to 200 19%, 201 to 500 4%, 501 to 1,000 1%, 1,001 to 5,000 1%, 5,001 to 10,000 0%, 10,001+ 0%. *Share of counted NAICS 238220 companies in Texas in each employee range.* ## How old are they? Most were founded in the 2000s (29%), then the 2010s (26%). **Figure: When NAICS 238220 companies in Texas were founded.** Eight columns for the share of counted NAICS 238220 companies in Texas founded in each era: Before 1960 8%, 1960s 2%, 1970s 9%, 1980s 10%, 1990s 12%, 2000s 29%, 2010s 26%, 2020s 2%. *Share of counted NAICS 238220 companies in Texas by the era they were founded in, for the ones that list a founding year.* ## How do you reach the people at these Texas companies? The people to talk to are usually owners, operations and procurement leaders. Build the list in three prompts to your AI agent. ### 1. Count them (free) Counting who matches never uses credits. ```text Use www.enrich.chat to count the companies with NAICS code 238220 in Texas ``` ### 2. Find the people (5 credits per person) Name the roles you sell to. Each person returned is 5 credits, and name, title and company are included. ```text Use www.enrich.chat to find the owners, operations and procurement leaders at companies with NAICS code 238220 in Texas, with their titles ``` ### 3. Get their work emails (10 credits each) An email is 10 credits only when one is found. Every email comes with a status: verified, catch-all or unknown. ```text Use www.enrich.chat to find the work emails for these people and tell me which ones are verified ``` ## More to explore About the code: [NAICS 238220: Plumbing, Heating, and Air-Conditioning Contractors](https://enrich.chat/naics/238220/). About the place: [companies in Texas](https://enrich.chat/companies-in/texas/). NAICS 238220 in other states: [California](https://enrich.chat/naics/238220/california/)[Florida](https://enrich.chat/naics/238220/florida/)[Ohio](https://enrich.chat/naics/238220/ohio/)[North Carolina](https://enrich.chat/naics/238220/north-carolina/)[Georgia](https://enrich.chat/naics/238220/georgia/)[Pennsylvania](https://enrich.chat/naics/238220/pennsylvania/)[Illinois](https://enrich.chat/naics/238220/illinois/)[Arizona](https://enrich.chat/naics/238220/arizona/)[Virginia](https://enrich.chat/naics/238220/virginia/)[Tennessee](https://enrich.chat/naics/238220/tennessee/) Other NAICS codes in Texas: [NAICS 541511: Custom Computer Programming Services](https://enrich.chat/naics/541511/texas/)[NAICS 541512: Computer Systems Design Services](https://enrich.chat/naics/541512/texas/)[NAICS 621111: Offices of Physicians](https://enrich.chat/naics/621111/texas/)[NAICS 722511: Full-Service Restaurants](https://enrich.chat/naics/722511/texas/)[NAICS 531210: Offices of Real Estate Agents](https://enrich.chat/naics/531210/texas/)[NAICS 236115: New Single-Family Housing Construction](https://enrich.chat/naics/236115/texas/)[NAICS 236220: Commercial and Institutional Building](https://enrich.chat/naics/236220/texas/)[NAICS 541110: Offices of Lawyers](https://enrich.chat/naics/541110/texas/)[NAICS 524210: Insurance Agencies and Brokerages](https://enrich.chat/naics/524210/texas/)[NAICS 541613: Marketing Consulting Services](https://enrich.chat/naics/541613/texas/) ## Frequently asked questions ### Which NAICS 238220 companies are in Texas? The biggest by headcount range include Comfort Systems Usa, Service Experts, Firetrol Protection Systems, Way Engineering and Kilgore Industries. The page lists 25 with links to their profiles where we have them. ### What is NAICS 238220? NAICS 238220 is the code for Plumbing, Heating, and Air-Conditioning Contractors, in sector 23: Construction. ### Which cities in Texas have the most? Houston (15%), Dallas (6%) and Austin (5%) lead among the companies counted. ## Try this prompt Find the people at NAICS 238220 companies in Texas ```text Use www.enrich.chat to find the owners, operations and procurement leaders at companies with NAICS code 238220 in Texas, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [NAICS 238220 in California](https://enrich.chat/naics/238220/california/) - [NAICS 238220 in Florida](https://enrich.chat/naics/238220/florida/) - [NAICS 238220 in Ohio](https://enrich.chat/naics/238220/ohio/) - [NAICS 238220 in North Carolina](https://enrich.chat/naics/238220/north-carolina/) - [NAICS 541511 in Texas](https://enrich.chat/naics/541511/texas/) - [NAICS 541512 in Texas](https://enrich.chat/naics/541512/texas/) - [NAICS 621111 in Texas](https://enrich.chat/naics/621111/texas/) - [NAICS 722511 in Texas](https://enrich.chat/naics/722511/texas/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)