> 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/tennessee/ # NAICS 238220 companies in Tennessee Companies with NAICS code 238220 (Plumbing, Heating, and Air-Conditioning Contractors) headquartered in Tennessee, with their cities, sizes and SIC codes. By Enrich.chat Editorial. Updated October 22, 2026. **Short answer:** The biggest NAICS 238220 companies in Tennessee by headcount range include Lee, The Comfort Group and Mechanical Resource Group. NAICS 238220 is the code for Plumbing, Heating, and Air-Conditioning Contractors. Among those counted, they are mostly very small: 70% have 50 or fewer employees. ## Which NAICS 238220 companies are in Tennessee? The biggest by headcount range include Lee, The Comfort Group, Mechanical Resource Group, Lightwave Solar and Etairos Hvac. 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 | | --- | --- | --- | | Lee | Franklin | 1,001 to 5,000 | | The Comfort Group | Nashville | 201 to 500 | | Mechanical Resource Group | Nashville | 51 to 200 | | Lightwave Solar | Antioch | 51 to 200 | | Etairos Hvac | Memphis | 51 to 200 | | Interstate Mechanical Contractors | Knoxville | 51 to 200 | | Total Group | Nashville | 51 to 200 | | Demand Mechanical | Nashville | 51 to 200 | | F.S. Sperry | Memphis | 51 to 200 | | Del-Air Mechanical Contractors | Knoxville | 51 to 200 | | Roscoe Brown | Murfreesboro | 51 to 200 | | Hill Services | Memphis | 51 to 200 | | Evolution Maintenance | Nashville | 51 to 200 | | King Industries | Chattanooga | 51 to 200 | | Callahan Mechanical Contractors | Chattanooga | 51 to 200 | | Nor-Well | Elizabethton | 51 to 200 | | Volunteer Mechanical | Knoxville | 11 to 50 | | American Helios Constructors | Chattanooga | 11 to 50 | | Precision Air Conditioning & Heating | Memphis | 11 to 50 | | Three Brothers Mechanical | Hendersonville | 11 to 50 | | American Air Hvac | Ooltewah | 11 to 50 | | Liberty Hvac & Energy Services | Brentwood | 11 to 50 | | Allstar Fire Protection | Madison | 11 to 50 | | Aha Mechanical Contractors | Memphis | 11 to 50 | | Derryberry's Heat & Air | Gallatin | 11 to 50 | 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 Tennessee? Within Tennessee, Memphis (11%), Nashville (11%) and Chattanooga (9%) are the most common headquarters. **Figure: Cities of NAICS 238220 companies in Tennessee.** Bars for the share of counted NAICS 238220 companies in Tennessee headquartered in each city: Memphis 11%, Nashville 11%, Chattanooga 9%, Knoxville 9%. *Share of counted NAICS 238220 companies in Tennessee by headquarters city.* ## How big are they? 70% of the NAICS 238220 companies counted in Tennessee 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 Tennessee.** Seven columns for the share of counted NAICS 238220 companies in Tennessee in each employee range: 11 to 50 70%, 51 to 200 26%, 201 to 500 2%, 501 to 1,000 0%, 1,001 to 5,000 2%, 5,001 to 10,000 0%, 10,001+ 0%. *Share of counted NAICS 238220 companies in Tennessee in each employee range.* ## How do you reach the people at these Tennessee 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 Tennessee ``` ### 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 Tennessee, 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 Tennessee](https://enrich.chat/companies-in/tennessee/). NAICS 238220 in other states: [California](https://enrich.chat/naics/238220/california/)[Texas](https://enrich.chat/naics/238220/texas/)[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/) Other NAICS codes in Tennessee: [NAICS 621111: Offices of Physicians](https://enrich.chat/naics/621111/tennessee/)[NAICS 722511: Full-Service Restaurants](https://enrich.chat/naics/722511/tennessee/)[NAICS 531210: Offices of Real Estate Agents](https://enrich.chat/naics/531210/tennessee/)[NAICS 524210: Insurance Agencies and Brokerages](https://enrich.chat/naics/524210/tennessee/) ## Frequently asked questions ### Which NAICS 238220 companies are in Tennessee? The biggest by headcount range include Lee, The Comfort Group, Mechanical Resource Group, Lightwave Solar and Etairos Hvac. 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 Tennessee have the most? Memphis (11%), Nashville (11%) and Chattanooga (9%) lead among the companies counted. ## Try this prompt Find the people at NAICS 238220 companies in Tennessee ```text Use www.enrich.chat to find the owners, operations and procurement leaders at companies with NAICS code 238220 in Tennessee, 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 Texas](https://enrich.chat/naics/238220/texas/) - [NAICS 238220 in Florida](https://enrich.chat/naics/238220/florida/) - [NAICS 238220 in Ohio](https://enrich.chat/naics/238220/ohio/) - [NAICS 621111 in Tennessee](https://enrich.chat/naics/621111/tennessee/) - [NAICS 722511 in Tennessee](https://enrich.chat/naics/722511/tennessee/) - [NAICS 531210 in Tennessee](https://enrich.chat/naics/531210/tennessee/) - [NAICS 524210 in Tennessee](https://enrich.chat/naics/524210/tennessee/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)