The 30 largest companies in Mentor (2026 list)

#	Company	Industry	Headquarters	Employees	Founded
1	Avery Dennison averydennison.com A global materials science company providing digital identification solutions for various industries, optimizing efficiency, sustainability, and customer experience worldwide	Packaging and Containers Manufacturing	🇺🇸 Mentor	22,063	1935
2	STERIS steris.com Provides infection prevention, procedural products, and services for healthcare, pharmaceutical, and medical device customers globally, aiming for a healthier, safer world.	Medical Equipment Manufacturing	🇺🇸 Mentor	11,156	1985
3	Avery Dennison Label and Packaging Materials label.averydennison.com Global material science and digital identification solutions company, providing branding and information solutions optimizing efficiency, sustainability, and transparency, connecting brands and consumers.	Manufacturing	🇺🇸 Mentor	2,493	1935
4	Stratus stratusunlimited.com 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
5	STERIS Isomedix Services (Now STERIS AST)steris-ast.com Stay informed on the latest news and events by following our new LinkedIn showcase page for Applied Sterilization Technologies	Medical Equipment Manufacturing	🇺🇸 Mentor	611	1972
6	Mentor Public Schools mentorschools.org Suburban school district serving over 7,700 students from pre-K to 12th grade in Mentor and surrounding areas, with eight elementary schools, three middle schools, and one high school	Education Administration Programs	🇺🇸 Mentor	573	n/a
7	Buyers Products Company buyersproducts.com A leading American manufacturer of equipment for the work truck industry, providing high-quality products with quick turnaround times and custom manufacturing solutions	Motor Vehicle Manufacturing	🇺🇸 Mentor	411	1946
8	Avery Dennison Graphics Solutions graphics.averydennison.com A global leader in providing imaging materials and service solutions for fleet, architecture, and transportation markets, bringing brand visions to life creatively	Advertising Services	🇺🇸 Mentor	370	1935
9	Cleveland Construction, Inc.clevelandconstruction.com A national commercial construction manager specializing in mixed-use/hospitality and multi-family developments in the Midwest and Southeast, focused on quality and value	Construction	🇺🇸 Mentor	365	1980
10	US Endoscopy steris.com A company focused on new product development in gastrointestinal endoscopy and urology markets, creating enhanced solutions for clinicians worldwide	Medical Equipment Manufacturing	🇺🇸 Mentor	342	1991
11	Avi Food Systems Inc A Food and Beverages company based in Mentor, Ohio, specializing in providing food services and solutions to various industries	Food and Beverage Services	🇺🇸 Mentor	321	n/a
12	Race Winning Brands racewinningbrands.com Leader in supplying high-performance engine components to Automotive and Powersports markets worldwide, catering to recreational and professional levels of racing	Motor Vehicle Manufacturing	🇺🇸 Mentor	311	n/a
13	Classic Auto Group driveclassic.com A professional auto group near Cleveland seeking ambitious sales professionals for career growth and promotion opportunities within the company	Motor Vehicle Manufacturing	🇺🇸 Mentor	306	1979
14	Component Repair Technologies componentrepair.com FAA-certified repair station specializing in gas turbine engine component repairs for aviation, industrial, and marine industries, with a reputation for quality service	Airlines and Aviation	🇺🇸 Mentor	278	1985
15	STERIS Endoscopy steris.com Specializing in therapeutic endoscopy and infection prevention, this company delivers advanced technologies through collaboration and new product development	Medical Equipment Manufacturing	🇺🇸 Mentor	242	n/a
16	Greenbridge greenbridge.com A leading provider of sustainability solutions for packaging and industrial products, offering strapping, cord, corner board, equipment, and training for recycling and reuse	Packaging and Containers Manufacturing	🇺🇸 Mentor	235	1974
17	CT Consultants, A Verdantas Company verdantas.com Providing engineering, architecture, planning, environmental, transportation, and construction services to support infrastructure and development projects.	Civil Engineering	🇺🇸 Mentor	185	1922
18	SMART Recovery USA smartrecovery.org A nonprofit community supporting individuals to overcome addiction through self-empowering principles, with meetings held globally for various demographics and support for loved ones	Wellness and Fitness Services	🇺🇸 Mentor	165	1994
19	Rustic Pathways rusticpathways.com A leader in global teen adventure and community service travel programs, offering culturally-immersive trips for students, teacher-led tours, and gap year options	Education Administration Programs	🇺🇸 Mentor	161	1983
20	Stahls Transfer Express transferexpress.com The company offers custom screen printed, digital, and rhinestone transfers for heat pressing onto apparel, with a wide range of design options available	Printing Services	🇺🇸 Mentor	154	1990
21	Platinum Real Estate contactplatinum.com A caring and customer-focused real estate company with state-of-the-art marketing, dedicated to finding the perfect home and providing excellent service and support	Real Estate	🇺🇸 Mentor	153	1991
22	Royal Plastics, Inc.royalplastics.com An innovative custom injection molder with global capabilities in manufacturing complex parts, offering design, assembly, finishing, and cost reduction services	Plastics Manufacturing	🇺🇸 Mentor	115	1966
23	LIBRA INDUSTRIES libraindustries.com Electronic contract manufacturing company providing customized solutions to make customers more competitive and profitable From ideation to production, we manage every aspect for complete product management	Appliances, Electrical, and Electronics Manufacturing	🇺🇸 Mentor	74	1936
24	Princeton Tool Inc.princetontool.com A manufacturing company providing innovative engineering, metrology, precision tooling, wax injection-assembly, and precision machining solutions to various industries since 1997	Aviation and Aerospace Component Manufacturing	🇺🇸 Mentor	60	1997
25	Quadrel Labeling Systems quadrel.com Quadrel Labeling Systems offers a range of labeling equipment, from tabletop units to high-speed systems, with a focus on smart engineering and processes	Machinery Manufacturing	🇺🇸 Mentor	27	1989
26	MICRON METALWORKS micronmetalworks.com An Ohio-based machinery company specializing in metalworks located on Tyler Blvd, Mentor, United States	Industrial Machinery Manufacturing	🇺🇸 Mentor	24	n/a
27	Star Precision Technologies, LLC starprecisiontechnologies.com Precision manufacturer specializing in tight-tolerance components for aerospace, medical, power generation, military & defense industries with capability for traditional and complex materials	Industrial Machinery Manufacturing	🇺🇸 Mentor	17	n/a
28	Sunset Industries, Inc.sunsetindustries.com Manufacturer specializing in high precision components for Aerospace, Nuclear, and Industrial markets, with a focus on quality, customer service, and precision machining operations	Aviation and Aerospace Component Manufacturing	🇺🇸 Mentor	15	1959
29	KJ Fasteners, Inc.kjfasteners.com Full-service manufacturer and distributor of special fasteners, CNC machining, and kits; serving various global markets with ISO 9001:2015 certified quality management	Wholesale	🇺🇸 Mentor	9	1975
30	Nova Manufacturing nova-manufacturing.com A manufacturing company offering engineering, CNC machining, fabrication, and assembly services to industries such as medical, semiconductor, automotive, and material handling for over 20 years	Machinery Manufacturing	🇺🇸 Mentor	6	2002

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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