> 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/companies-in/houston-tx/facilities-services/ # Facilities Services Companies in Houston, TX The bigger facilities services companies headquartered in Houston, TX, with what they do, their sizes and how to reach their people. By Enrich.chat Editorial. Updated October 22, 2026. **Short answer:** Among the facilities services companies counted in Houston, TX, the biggest by headcount range include Brock Group, Apache Industrial Services and D & H United Fueling Solutions. They are mostly very small: 76% have 50 or fewer employees. ## Which facilities services companies are in Houston? Among the companies whose public profile lists Facilities Services as their industry and Houston, TX as their headquarters, the biggest by headcount range include Brock Group, Apache Industrial Services, D & H United Fueling Solutions, Thompson Safety and Ambassador Services. Names link to a company profile where we have one. | Company | Employees | | --- | --- | | [Brock Group](https://enrich.chat/company/brock-group/) | 10,001+ | | Apache Industrial Services | 1,001 to 5,000 | | D & H United Fueling Solutions | 1,001 to 5,000 | | Thompson Safety | 501 to 1,000 | | Ambassador Services | 501 to 1,000 | | Streamtech Industrial | 501 to 1,000 | | Mantis Innovation | 201 to 500 | | Corporate Care Restoration & Maintenance | 201 to 500 | | Hunton Services | 201 to 500 | | It Community Of Ifma | 201 to 500 | | Silversand Services | 201 to 500 | | Pioneer Contract Services | 201 to 500 | | Fm Solpro | 201 to 500 | | Teal | 51 to 200 | | Dac | 51 to 200 | | Direct Service, Construction & Design | 51 to 200 | | Unify Energy Solutions | 51 to 200 | | Gainsborough Waste | 51 to 200 | | Zters | 51 to 200 | | Texas Outhouse | 51 to 200 | | Csna | 51 to 200 | | Fluid Service Technologies | 51 to 200 | | Painting Professionals | 51 to 200 | | Fire Safe Protection Services | 51 to 200 | | Quality Facility Specialists | 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. ## What do facilities services companies in Houston do? Facilities Services is a broad label. The most common NAICS codes among them are 238220 (14%), 561110 (7%) and 561790 (7%). **Figure: What facilities services companies in Houston do.** Bars for the share of counted facilities services companies with each code: 238220 14%, 561110 7%, 561790 7%, 562920 7%, 562991 7%, 236117 4%, 236220 4%. *Share of counted facilities services companies in Houston by their NAICS code.* [NAICS 238220](https://enrich.chat/naics/238220/)[NAICS 562920](https://enrich.chat/naics/562920/)[NAICS 236220](https://enrich.chat/naics/236220/) ## How big are they? 76% of the facilities services companies counted in Houston 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 facilities services companies in Houston.** Seven columns for the share of counted facilities services companies in Houston in each employee range: 11 to 50 76%, 51 to 200 17%, 201 to 500 4%, 501 to 1,000 2%, 1,001 to 5,000 1%, 5,001 to 10,000 0%, 10,001+ 1%. *Share of counted facilities services companies in Houston in each employee range.* ## How old are they? Most were founded in the 2010s (32%), then the 2000s (21%). **Figure: When facilities services companies in Houston were founded.** Eight columns for the share of counted facilities services companies in Houston founded in each era: Before 1960 3%, 1960s 0%, 1970s 3%, 1980s 15%, 1990s 20%, 2000s 21%, 2010s 32%, 2020s 5%. *Share of counted facilities services companies in Houston by the era they were founded in, for the ones that list a founding year.* ## How facilities services companies compare - 37% were founded in 2010 or later, against 54% across other cities on this site. ## How do you reach the people at facilities services companies in Houston? The people to talk to are usually owners, operations and sales 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 facilities services companies in Houston, TX ``` ### 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 sales leaders at facilities services companies in Houston, TX, 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 Other industries in Houston: [Oil and Gas Companies](https://enrich.chat/companies-in/houston-tx/oil-and-gas/)[Construction Companies](https://enrich.chat/companies-in/houston-tx/construction/)[IT Services Companies](https://enrich.chat/companies-in/houston-tx/it-services-and-it-consulting/)[Real Estate Companies](https://enrich.chat/companies-in/houston-tx/real-estate/)[Hospitals and Health Care Organizations](https://enrich.chat/companies-in/houston-tx/hospitals-and-health-care/)[Software Companies](https://enrich.chat/companies-in/houston-tx/software-development/)[Consulting Firms](https://enrich.chat/companies-in/houston-tx/business-consulting-and-services/)[Financial Services Companies](https://enrich.chat/companies-in/houston-tx/financial-services/)[Advertising Agencies](https://enrich.chat/companies-in/houston-tx/advertising-services/)[Staffing and Recruiting Firms](https://enrich.chat/companies-in/houston-tx/staffing-and-recruiting/)[Nonprofit Organizations](https://enrich.chat/companies-in/houston-tx/non-profit-organizations/)[Logistics and Supply Chain Companies](https://enrich.chat/companies-in/houston-tx/transportation-logistics-supply-chain-and-storage/)[Law Firms](https://enrich.chat/companies-in/houston-tx/law-practice/)[Insurance Companies](https://enrich.chat/companies-in/houston-tx/insurance/)[Trucking Companies](https://enrich.chat/companies-in/houston-tx/truck-transportation/)[Legal Services Firms](https://enrich.chat/companies-in/houston-tx/legal-services/)[Manufacturers](https://enrich.chat/companies-in/houston-tx/manufacturing/)[Wholesale Distributors](https://enrich.chat/companies-in/houston-tx/wholesale/)[Technology and Internet Companies](https://enrich.chat/companies-in/houston-tx/technology-information-and-internet/)[All of Houston](https://enrich.chat/companies-in/houston-tx/) Facilities Services Companies in other cities: [Austin, TX](https://enrich.chat/companies-in/austin-tx/facilities-services/)[Dallas, TX](https://enrich.chat/companies-in/dallas-tx/facilities-services/)[Phoenix, AZ](https://enrich.chat/companies-in/phoenix-az/facilities-services/)[Charlotte, NC](https://enrich.chat/companies-in/charlotte-nc/facilities-services/)[Atlanta, GA](https://enrich.chat/companies-in/atlanta-ga/facilities-services/)[Las Vegas, NV](https://enrich.chat/companies-in/las-vegas-nv/facilities-services/)[Orlando, FL](https://enrich.chat/companies-in/orlando-fl/facilities-services/)[Indianapolis, IN](https://enrich.chat/companies-in/indianapolis-in/facilities-services/)[San Antonio, TX](https://enrich.chat/companies-in/san-antonio-tx/facilities-services/)[Tampa, FL](https://enrich.chat/companies-in/tampa-fl/facilities-services/) ## Frequently asked questions ### Which are the biggest facilities services companies in Houston? Among those counted, they include Brock Group, Apache Industrial Services, D & H United Fueling Solutions, Thompson Safety and Ambassador Services, ranked by headcount range. ### How big are facilities services companies in Houston? 76% of those counted 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. ### Which companies count as facilities services? Companies whose public profile lists Facilities Services as their industry and whose headquarters are in Houston, TX. ## Try this prompt Find the people at facilities services companies in Houston ```text Use www.enrich.chat to find the owners, operations and sales leaders at facilities services companies in Houston, TX, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [Oil and Gas Companies in Houston](https://enrich.chat/companies-in/houston-tx/oil-and-gas/) - [Construction Companies in Houston](https://enrich.chat/companies-in/houston-tx/construction/) - [IT Services Companies in Houston](https://enrich.chat/companies-in/houston-tx/it-services-and-it-consulting/) - [Real Estate Companies in Houston](https://enrich.chat/companies-in/houston-tx/real-estate/) - [Facilities Services Companies in Austin](https://enrich.chat/companies-in/austin-tx/facilities-services/) - [Facilities Services Companies in Dallas](https://enrich.chat/companies-in/dallas-tx/facilities-services/) - [Facilities Services Companies in Phoenix](https://enrich.chat/companies-in/phoenix-az/facilities-services/) - [Facilities Services Companies in Charlotte](https://enrich.chat/companies-in/charlotte-nc/facilities-services/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)