| # | Company | Employees |
|---|---|---|
| 1 |
Cintascintas.com
A Fortune 500 company specializing in providing a wide range of products and services to help businesses prepare for the workday |
30,472 |
| 2 |
Dart Containerdartcontainer.com
Manufacture and supply of to-go containers, dinnerware, tamper-evident packaging, focusing on quality, design, and sustainability. |
5,526 |
| 3 |
AtriCure, Inc.atricure.com
Provides innovative medical devices and therapies for treating Afib, reducing related complications, and managing post-operative pain for cardiothoracic and thoracic procedures. |
1,383 |
| 4 |
Makinomakino.com
A global leader in metal-cutting technology, offering machining centers, EDM machines, software, engineering services, automation systems, training, and financing to help customers increase productivity and reduce costs |
1,313 |
| 5 |
Kings Islandvisitkingsisland.com
Amusement park offering over 100 rides, shows, and attractions including 16 roller coasters, family-friendly Planet Snoopy area, and Soak City Water Park with 50+ water activities |
1,194 |
| 6 |
Clopay Corporationclopaydoor.com
Clopay is a leading manufacturer of residential and commercial garage doors in North America, offering a variety of brands and products through a wide distribution network |
1,143 |
| 7 |
Orchid Orthopedic Solutionsorchid-ortho.com
Global leader in medical device outsourcing services, providing design, development, and manufacturing of implants and instruments across various medical markets. |
852 |
| 8 |
Grace Baptist Churchgbcmason.org
A community of Jesus Christ followers who worship, serve, and love the community Sunday morning Bible studies and worship events available |
739 |
| 9 |
Benchmark Gensuiteยฎbenchmarkgensuite.com
Provides a unified digital platform for managing EHS, Sustainability, ESG reporting, quality, risk, compliance, and supply chain management globally. |
665 |
| 10 |
TODOScintas1.sharepoint.com
The company aims to engage, inspire, develop, and retain Hispanic and Latin partners at Cintas for business performance and a reputable workplace |
512 |
| 11 |
VEGA Americas, Inc.vega.com
Provides advanced measurement products for level, pressure, and density across diverse industries including oil, chemical, mining, and food processing. |
432 |
| 12 |
Best Upon Requestbestuponrequest.com
The company provides trusted on-site concierge services for organizations nationwide, helping employees balance work and life effectively for increased productivity and satisfaction |
426 |
| 13 |
Berkshire Hathaway HomeServices Professional Realtybhhspro.com
Providing comprehensive real estate services in Ohio and Northern Kentucky, including residential and commercial sales, new construction, relocation assistance, and post-move support |
425 |
| 14 |
Stridely Solutionsstridelysolutions.com
A leading global technology solution provider offering digital transformation solutions with 12+ years of experience in software development across various industries |
379 |
| 15 |
Ingham Intermediate School Districtinghamisd.org
Regional educational service agency serving 12 local school districts across seven counties, dedicated to fostering the achievement and success of all learners |
368 |
| 16 |
Macy's Credit and Customer Services, Inc.
An investment management company located in Mason, Ohio, specializing in credit and customer services |
342 |
| 17 | 339 | |
| 18 |
Touchstone (powered by Boundless)tmgideas.com
The company creates immersive brand experiences, connects with consumers through merchandise, and challenges the status quo for innovative solutions |
327 |
| 19 |
Harris Products Groupharrisproductsgroup.com
Industry leader in gas equipment and consumables, offering high-quality solutions for cutting, welding, brazing, soldering, and gas distribution across various industries |
291 |
| 20 |
The Armor Group, Inc.thearmorgroup.com
A Greater Cincinnati-based business specializing in custom metal fabrication manufacturing and industrial capital equipment with over 90 years of experience |
232 |
| 21 |
PTG Logisticsptglogistics.com
An asset-based carrier providing dedicated contract carriage, final mile, and truckload services across the US for various industries Also offers truck lease and refrigerated van services |
176 |
| 22 |
City of Mason, Ohioimaginemason.org
A company located in Mason, Ohio, offering a variety of recreational activities, events, and attractions for residents and visitors of all ages |
174 |
| 23 |
Spherical Insights LLPsphericalinsights.com
A leading provider of market data intelligence and content marketing services trusted by top companies worldwide, from Fortune 500 to startups |
173 |
| 24 |
Back2Back Ministriesback2back.org
A global organization focused on transforming the lives of orphaned and vulnerable children by providing holistic care to meet their needs |
171 |
| 25 |
DOWNLITEdownlite.com
A family-owned bedding company in Ohio specializing in high-quality comforters, pillows, and more for creating great sleep experiences |
168 |
| 26 |
Omni Fiberomnifiber.com
A telecommunications company founded in 2022, providing 100% fiber-optic broadband Internet, TV, and phone services in the Midwestern United States with symmetrical speeds up to 2 Gbps |
167 |
| 27 |
Basco Shower Enclosuresbascoshowerdoor.com
A leading provider of luxury shower enclosures, offering high-quality, handcrafted products with superior customer care and nationwide availability through various channels since 1955 |
166 |
| 28 |
TEC Engineering, Inc.teceng.com
Southwest Ohio's top transportation and traffic engineering provider with 25 years experience, over 2,000 completed projects, and a diverse staff of professionals |
164 |
| 29 |
Pioneer Cladding and Glazing Systemspioneerglazing.com
A premier glazing and manufacturing company offering custom curtain walls, windows, skylights, metal panels, and more for various building projects |
157 |
| 30 |
Kenwood Dealer Group Inccincyautos.com
A family-owned group of automobile dealerships operating since 1975 with 15 locations offering sales, service, and repair, employing over 1000 people |
153 |
| 31 |
Hi-Tek Manufacturing, Inc.hitekmfg.com
High-Tek Manufacturing provides precision machining services for aircraft and gas turbine industries, specializing in hot gas path component manufacturing Check out their available positions! |
152 |
| 32 |
Rhinestahl Advanced Manufacturing Grouprhinestahl.com
A high-tech company specializing in complex machining and fabrication, focusing on refining designs for improved manufacturability and offering integrated solutions to customers |
59 |
| 33 |
SHIV ENTERPRISESshiventp.com
Global consulting firm specializing in strategy, technology, and digital transformation Offering custom application development, IT services, and business process outsourcing to improve client productivity |
37 |
| 34 |
The Web and Marketing Bureau, LLCwebandmarketingusa.com
This company offers customizable software solutions that evolve with your needs, from logo design to website development and call support services |
26 |
| 35 |
Global Link Logistics Inc.g-ll.com
A global logistics company offering comprehensive supply chain solutions and freight movement services around the globe, specializing in various transportation modes and logistics solutions |
7 |
| 36 |
Dakatec Incdakatec.com
Provider of high quality patent and trademark drawings since 1989, serving the global Intellectual Property community with expedited personalized services for worldwide filing |
3 |
| 37 |
Nations Choice Trusted Advisorsโขnationschoicetrustedadvisors.com
A holistic risk management approach offering commercial insurance, executive benefits, business planning, and wealth management services through technological innovation and interdisciplinary expertise |
3 |
| 38 |
SalesWon (CRM/CPQ)flowolf.tech
It offers a user-friendly sales application that integrates CRM and CPQ functionalities, enhancing efficiency in the quote to cash process. |
n/a |
Turn this list into pipeline
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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 Oct 24, 2026.
The same list elsewhere in United States
- The largest companies in the United States 91,669
- The largest companies in California 12,813
- The largest companies in New York State 10,485
- The largest companies in Texas 8,086
- The largest companies in Florida 4,945
- The largest companies in Illinois 4,175
- The largest companies in Pennsylvania 3,110
- The largest companies in Massachusetts 3,093
- The largest companies in Georgia 2,632
- The largest companies in Ohio 2,618
- The largest companies in New Jersey 2,569
- The largest companies in Virginia 2,503
- The largest companies in Michigan 2,346
- The largest companies in North Carolina 2,174
- The largest companies in Alabama 1,806
- The largest companies in Washington State 1,785
- The largest companies in Colorado 1,774
- The largest companies in Minnesota 1,700
- The largest companies in Maryland 1,527
- The largest companies in Wisconsin 1,482
- The largest companies in New York 6,920
- The largest companies in San Francisco 2,030
- The largest companies in Houston 1,791
- The largest companies in Chicago 1,668