# The 26 largest Facilities Services companies in Ohio

Tamtam tracks 26 Facilities Services companies headquartered in Ohio. This list ranks all of them by number of employees on LinkedIn, led by Cintas, Roto-Rooter Plumbing and Drain Service and Phillycuseian_alswan. Their median headcount is 438. Half of them were founded in 1985 or later. The most common headquarters are Cincinnati (8) and Columbus (3).

These facilities services companies in Ohio are mostly large, established firms. Among them, Cintas, founded in 1968, specializes in a wide range of products and services for businesses. Roto-Rooter Plumbing and Drain Service, established in 1935, is a major provider of plumbing repair. EMCOR Facilities Services offers integrated facilities management, while MPW Industrial Services provides industrial cleaning and waste services.

Most of these companies are headquartered in the Cincinnati area. Other cities with multiple headquarters include Columbus, Perrysburg, and Maumee. The founding dates range from 1935 to 2000, indicating a mix of long-standing enterprises and more recently established firms in the sector.

🇺🇸 Ohio · 26 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Cintas](https://www.tamtam.ai/c/cintas) (cintas.com)<br>A Fortune 500 company specializing in providing a wide range of products and services to help businesses prepare for the workday | Facilities Services | 🇺🇸 Mason | 30,472 | 1968 |
| 2 | [Roto-Rooter Plumbing and Drain Service](https://www.tamtam.ai/c/roto-rooter-plumbing-and-drain-service) (rotorooter.com)<br>North America's largest provider of plumbing repair and drain cleaning services with over 520 locations in the US, Canada, and internationally | Facilities Services | 🇺🇸 Cincinnati | 4,420 | 1935 |
| 3 | [Phillycuseian_alswan](https://www.tamtam.ai/c/phillycuseian-alswan) (n1m.com)<br>Facilities services provider located in Columbus, Ohio, specializing in serving VA hospitals with a range of support services | Facilities Services | 🇺🇸 Columbus | 1,882 |  |
| 4 | [EMCOR Facilities Services](https://www.tamtam.ai/c/emcor-facilities-services) (emcorfacilities.com)<br>Provides integrated facilities management, maintenance, and operational solutions for businesses globally, enhancing productivity, reducing costs, and offering data-driven insights for facility optimization. | Facilities Services | 🇺🇸 Cincinnati | 1,869 |  |
| 5 | [MPW Industrial Services](https://www.tamtam.ai/c/mpw-industrial-services) (mpwservices.com)<br>A leading provider of industrial cleaning, water purification, facility management, and waste services in North America, enhancing efficiency, reliability, and cost-effectiveness for various industries | Facilities Services | 🇺🇸 Hebron | 1,679 |  |
| 6 | [Divisions Maintenance Group](https://www.tamtam.ai/c/divisions-maintenance-group) (divisionsmg.com)<br>Facility maintenance services for commercial, industrial, and residential multi-site organizations nationwide, providing dedicated teams, local support, 24/7 coverage, and tailored products | Facilities Services | 🇺🇸 Cincinnati | 1,148 | 1999 |
| 7 | [Stratus](https://www.tamtam.ai/c/stratus) (stratusunlimited.com)<br>A nationwide provider of signage, site refresh/remodel, energy solutions, and repair/maintenance services, focusing on maximizing efficiency and reducing management hassles for clients | Facilities Services | 🇺🇸 Mentor | 1,088 | 1953 |
| 8 | [OnPoint Group, LLC](https://www.tamtam.ai/c/onpoint-group-llc) (onpointgroup.com)<br>We optimize total cost of ownership for critical equipment through expertise and innovation in procurement, maintenance, data management and asset replacement | Facilities Services | 🇺🇸 Perrysburg | 819 |  |
| 9 | [TFS](https://www.tamtam.ai/c/tfs) (tfsglobal.com)<br>Fleet management company specializing in forklifts, ensuring brand independence and providing cost savings, increased efficiency, and comprehensive services for material handling fleets | Facilities Services | 🇺🇸 Perrysburg | 743 | 2000 |
| 10 | [KBS - Kellermeyer Building Services, LLC](https://www.tamtam.ai/c/kbs-kellermeyer-building-services-llc) (kbs-clean.com)<br>The newly merged company offers building and property services under the name Kellermeyer Bergensons Services (KBS) Visit wwwkbs-cleancom for more information | Facilities Services | 🇺🇸 Maumee | 713 | 1967 |
| 11 | [RoviSys Building Technologies](https://www.tamtam.ai/c/rovisys-building-technologies) (rovisys.com)<br>Specializing in building and facility automation, utilizing industrial-grade PLC and DDC control systems for HVAC, lighting, security, and more Helping clients achieve energy-efficient systems | Facilities Services | 🇺🇸 Aurora | 590 | 1989 |
| 12 | [S.A. Comunale Co., Inc.](https://www.tamtam.ai/c/s-a-comunale-co-inc) (comunale.com)<br>With over 40 years of experience, we specialize in designing, installing, inspecting, and servicing fire sprinkler and alarm systems nationwide | Facilities Services | 🇺🇸 Barberton | 518 |  |
| 13 | [Clean Team, Inc.](https://www.tamtam.ai/c/clean-team-inc) (cleanteamclean.com)<br>Top commercial janitorial cleaning service in multiple states, offering cleaning for various facilities including hospitals, warehouses, schools, offices, and businesses with exceptional customer service | Facilities Services | 🇺🇸 Holland | 438 | 1996 |
| 14 | [JSI Janitorial](https://www.tamtam.ai/c/jsi-janitorial) (jsijanitorial.com)<br>This company delivers innovative janitorial services promoting sustainability, prioritizing workforce development, diversity, integrity, and high-quality service for over 50 years | Facilities Services | 🇺🇸 Cuyahoga Heights | 404 | 1972 |
| 15 | [TP Mechanical](https://www.tamtam.ai/c/tp-mechanical) (tpmechanical.com)<br>A $150 million mechanical contractor in Ohio, Kentucky and Indiana focused on honesty, safety, innovation, and servant leadership to deliver lasting value | Facilities Services | 🇺🇸 Cincinnati | 346 | 1953 |
| 16 | [Perfection Group](https://www.tamtam.ai/c/perfection-group) (perfectiongroup.com)<br>Provider of personalized high-quality facilities management services with cutting-edge technology, decades of experience, and guaranteed results, focused on efficiency and productivity | Facilities Services | 🇺🇸 Cincinnati | 275 | 1951 |
| 17 | [Mobile-Shop Company](https://www.tamtam.ai/c/mobile-shop-company) (mobile-shop.com)<br>Innovative tool carts and tool bags for maintenance redefine productivity, save time, and provide ROI in just 6 months | Facilities Services | 🇺🇸 Columbus | 218 | 2006 |
| 18 | [SDMyers](https://www.tamtam.ai/c/sdmyers) (sdmyers.com)<br>Industry leader in transformer and substation maintenance, specializing in diagnostics, training, and remote monitoring to ensure reliable power system continuity | Facilities Services | 🇺🇸 Tallmadge | 193 | 1965 |
| 19 | [Aetna Integrated Services](https://www.tamtam.ai/c/aetna-integrated-services) (gdi.com)<br>A facilities services company based in France acquired Aetna Integrated Services in 2017 Aetna Integrated Services is now known as ATALIAN Global Services in the USA | Facilities Services | 🇺🇸 Columbus | 184 | 1936 |
| 20 | [BlueChip Pros](https://www.tamtam.ai/c/bluechip-pros) (bluechip-pros.com)<br>Providing exceptional service with a dedicated and diverse team | Facilities Services | 🇺🇸 Cincinnati | 171 | 1986 |
| 21 | [Engineering Excellence](https://www.tamtam.ai/c/engineering-excellence) (engineeringexcellence.com)<br>National HVACR solutions provider offering local expertise in service, preventive maintenance, emergency service, unit replacements, surveys, audits, energy consulting, and HVAC controls | Facilities Services | 🇺🇸 Cincinnati | 161 | 1979 |
| 22 | [Four Seasons Environmental, Inc.](https://www.tamtam.ai/c/four-seasons-environmental-inc) (fseinc.net)<br>A consulting firm specializing in maximizing property assets through energy efficiency, maintenance practices, commissioning services, building automation, and LEED consulting | Facilities Services | 🇺🇸 Monroe | 153 | 1985 |
| 23 | [SEAM Group](https://www.tamtam.ai/c/seam-group) (abb.com)<br>An energized asset performance company offering advisory, training, technology, and data management services globally to improve organizational performance | Facilities Services | 🇺🇸 Beachwood | 107 |  |
| 24 | [Omnia360 Facility Solutions](https://www.tamtam.ai/c/omnia360-facility-solutions) (omnia360fs.com)<br>Omnia360 Facility Solutions offers customized and cost-efficient integrated facility solutions for various organizations, maximizing productivity and profitability through personalized service and maintenance | Facilities Services | 🇺🇸 Cincinnati | 53 | 2018 |
| 25 | [GEM Energy](https://www.tamtam.ai/c/gem-energy) (rlgbuilds.com)<br>Provider of energy management solutions, utility procurement, building automation systems, HVAC, plumbing, solar development, CHP, and facility management services A member of RLGbuildscom | Facilities Services | 🇺🇸 Walbridge | 50 | 1999 |
| 26 | [National Maintenance Services](https://www.tamtam.ai/c/national-maintenance-services) (concentricusa.com)<br>Nationwide material handling maintenance company specializing in forklift and mobile equipment maintenance Customized programs to maximize productivity and reduce spend Fast, reliable service | Facilities Services | 🇺🇸 Findlay | 43 | 2002 |

## How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 11, 2026.

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## The same list elsewhere in United States

- [Facilities Services companies in the United States](https://www.tamtam.ai/l/facilities-services-companies-united-states) (527)
- [Facilities Services companies in New York State](https://www.tamtam.ai/l/facilities-services-companies-new-york-state) (90)
- [Facilities Services companies in California](https://www.tamtam.ai/l/facilities-services-companies-california) (47)
- [Facilities Services companies in Texas](https://www.tamtam.ai/l/facilities-services-companies-texas) (47)
- [Facilities Services companies in Florida](https://www.tamtam.ai/l/facilities-services-companies-florida) (36)
- [Facilities Services companies in New York](https://www.tamtam.ai/l/facilities-services-companies-new-york) (28)

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Source: https://www.tamtam.ai/l/facilities-services-companies-ohio