The 41 largest companies in Rockford (2026 list)

#	Company	Industry	Headquarters	Employees	Founded
1	Wolverine Worldwide wolverineworldwide.com Global marketer specializing in branded footwear, apparel, and accessories with a 142-year history and presence in 200 countries.	Retail Apparel and Fashion	🇺🇸 Rockford	4,744	1883
2	Mercyhealth Wisconsin and Illinois mercyhealthsystem.org Integrated health system providing world-class healthcare close to home, offering hospital, clinic, post-acute, and retail services with a commitment to making lives better	Hospitals and Health Care	🇺🇸 Rockford	3,927	1889
3	UW Health SwedishAmerican careers.uwhealth.org A healthcare system in Wisconsin providing medical innovation and quality care to patients in Northern Illinois with access to UW Health experts	Hospitals and Health Care	🇺🇸 Rockford	1,314	1911
4	RPS 205 rps205.com Large Illinois school district providing comprehensive education and career readiness programs for 28,700 students with 4,700 employees.	Primary and Secondary Education	🇺🇸 Rockford	1,237	n/a
5	Mercyhealth Hospital–Rockton Avenue mercyhealthsystem.org A regional health system with 5 hospitals and 80 facilities, committed to making lives better for patients and their families through top integrated healthcare services	Hospitals and Health Care	🇺🇸 Rockford	800	1883
6	Rock Valley College rockvalleycollege.edu A comprehensive two-year community college in Rockford, Illinois offering over 100 courses for transfer, career programs, and certificates Founded in 1964	Higher Education	🇺🇸 Rockford	776	1964
7	Rosecrance Behavioral Health rosecrance.org A not-for-profit organization providing behavioral health services for all ages, including addiction treatment, mental health services, and family education nationwide Serving over 30,000 families annually	Hospitals and Health Care	🇺🇸 Rockford	713	1916
8	Savant Wealth Management savantwealth.com Provides comprehensive financial services including investments, tax management, estate planning, and retirement plans, aiming to help individuals achieve their financial goals.	Financial Services	🇺🇸 Rockford	664	1986
9	Rockford University rockford.edu Private four-year institution offering undergraduate and graduate degrees in liberal arts and professional fields, including MBA and education programs Focus on global perspectives and practical applications	Higher Education	🇺🇸 Rockford	579	1847
10	Cleo cleo.com Provides strategic visibility and integration solutions for business ecosystems, enabling agility, modernization, and new revenue through seamless B2B and data connections.	Software Development	🇺🇸 Rockford	570	1976
11	Bergstrom Inc.bergstrominc.com A global leader in designing and manufacturing cab climate systems for heavy-duty commercial trucks, off-highway machines, and specialty vehicles	HVAC and Refrigeration Equipment Manufacturing	🇺🇸 Rockford	540	1949
12	Winnebago County wincoil.gov Winnebago County located in Illinois with a population of 295,300, is the seventh most populous county in the state	Government Administration	🇺🇸 Rockford	537	1836
13	Merrell merrell.com The company provides innovative, quality footwear and apparel products to inspire and empower people to enjoy the outdoors and protect nature	Retail	🇺🇸 Rockford	529	1981
14	Rockford Park District rockfordparkdistrict.org The company provides programs and services to the community, focusing on youth development, park beautification, recreation, and overall well-being	Recreational Facilities	🇺🇸 Rockford	483	1909
15	Ingersoll Cutting Tools ingersoll-imc.com A leading supplier of innovative metal removal tooling, offering a wide range of milling products and constantly striving for new advancements in the industry	Machinery Manufacturing	🇺🇸 Rockford	384	1889
16	Remote Area Medical - RAM®ramusa.org Provide free dental, vision, and medical services to underserved and uninsured individuals through volunteer-run pop-up clinics nationwide.	Non-profit Organizations	🇺🇸 Rockford	360	1985
17	Temple Baptist Church tbcrockford.com The company is working with older congregations to start new ministries and trust in God's plan for their community's future	Religious Institutions	🇺🇸 Rockford	350	n/a
18	Hush Puppies hushpuppies.com Global footwear brand offering innovative, comfortable casual shoes designed to alleviate foot pain and promote a relaxed lifestyle worldwide.	Retail Apparel and Fashion	🇺🇸 Rockford	350	1958
19	OrthoIllinois, a division of OrthoMidwest orthoillinois.com OrthoIllinois provides comprehensive bone and joint care with multi-specialty services, state-of-the-art technology, and physician expertise in northern Illinois	Medical Practices	🇺🇸 Rockford	335	1967
20	FIGmd, Inc.figmd.com A company recently acquired by MRO, specializing in healthcare technology, will be deactivating their LinkedIn account soon Follow MRO for updates	IT Services and IT Consulting	🇺🇸 Rockford	333	2010
21	Byrne byrne.com The company is inspired by ideas, values honesty, passion, hard work, and diversity They create connections through electrical products, seeking talented individuals	Appliances, Electrical, and Electronics Manufacturing	🇺🇸 Rockford	274	1970
22	Saucony saucony.com The company is dedicated to inspiring individuals to live their best lives through running, self-expression, and creating a better world	Sporting Goods Manufacturing	🇺🇸 Rockford	243	1898
23	Milestone milestone-inc.org Provider of residential, developmental, educational, and vocational programs for individuals with developmental disabilities through over 30 facilities, including group homes and clinics	Non-profit Organizations	🇺🇸 Rockford	195	1973
24	kmV kmvtech.com Manufacturer and installer of automated vision inspection systems for blow mold and preform container manufacturers across various industries ensuring quality control and high production yields	Automation Machinery Manufacturing	🇺🇸 Rockford	185	n/a
25	Kent Power kentpower.com A contractor in the electrical and natural gas industries, specializing in outside plant projects for public utilities and communications companies since 1978	Construction	🇺🇸 Rockford	184	1978
26	JL Clark jlclark.com Domestic packaging manufacturer offering metal and plastic packaging solutions for leading consumer brands in beauty, confectionery, and food markets	Packaging and Containers Manufacturing	🇺🇸 Rockford	177	1904
27	workplace workplacestaffing.com A trusted advisor in recruitment and human resource consulting, delivering quality results to candidates and employers since 1988	Staffing and Recruiting	🇺🇸 Rockford	176	1988
28	Key Realty keyrealtyus.com A locally owned real estate company offering a full range of services in Illinois, Florida, and Wisconsin, with a focus on professionalism, customer service, and community development	Real Estate	🇺🇸 Rockford	176	2003
29	Liebovich Steel & Aluminum liebovichsteel.com A metal service center providing carbon steel, stainless steel, and aluminum with complete processing capabilities including flame cutting, shearing, sawcutting, and more	Warehousing and Storage	🇺🇸 Rockford	175	1939
30	Ingersoll Machine Tools en.machinetools.camozzi.com A pioneering company in milling machines, composite manufacturing, additive manufacturing, contract manufacturing, and building large telescopes and antennas since 1891	Aviation and Aerospace Component Manufacturing	🇺🇸 Rockford	168	2003
31	Goodwill Industries of Northern Illinois goodwillni.org A community-based nonprofit organization in northern Illinois and southern Wisconsin, providing job training programs and employment placement services through retail store sales	Individual and Family Services	🇺🇸 Rockford	168	1936
32	ABG abgbag.com A North American woman-owned company that develops and supplies UN rated containment solutions for various industries, offering patented products like transformer bags, spill kits, and more	Utilities	🇺🇸 Rockford	155	2003
33	Chaco chacos.com This company designs high-quality footwear and accessories for outdoor enthusiasts, focusing on comfort, durability, and enriching the lives of consumers	Retail	🇺🇸 Rockford	112	1989
34	Kaney Inc.kaney.com An AS9100 certified engineering, manufacturing, and technology company, providing high-precision solutions for Aerospace, Defense, Medical, UAV markets with global operations	Aviation and Aerospace Component Manufacturing	🇺🇸 Rockford	97	n/a
35	SMSA smsaonline.com A full-service fulfillment organization specializing in high volume distribution, warehousing, order processing, and fulfillment services for various clients	Advertising Services	🇺🇸 Rockford	75	1977
36	Delta Power Company delta-power.com Manufacturing robust cartridge valves for hydraulics industry, specializing in Ag and Construction Equipment, with a commitment to exceeding customer expectations	Industrial Machinery Manufacturing	🇺🇸 Rockford	73	1965
37	Accelerated Machine Design and Engineering LLC megaplusredirection.tedata.net Innovative full-service provider of high-performance engineered systems, specializing in product development, manufacturing, and complete lifecycle support services	Machinery Manufacturing	🇺🇸 Rockford	27	2008
38	Hansford Parts & Products hpproc.com A manufacturing solutions company with over 30 years of experience, providing quality parts, machine tool products, and assembly services with ISO9001 certification	Machinery Manufacturing	🇺🇸 Rockford	5	1947
39	William Charles Ltd acjohnston.com A holding company specializing in managing and overseeing various business entities under its ownership	Investment Management	🇺🇸 Rockford	5	n/a
40	Komax Systems Rockford, Inc. A machinery company based in Rockford, Illinois specializing in providing systems and solutions	Machinery Manufacturing	🇺🇸 Rockford	3	n/a
41	Skander Logistics Corp skanderlogistics.com A logistics company with seasoned professionals offering on-time parcel deliveries, pallet shipments, and B2B orders across the US	Transportation, Logistics, Supply Chain and Storage	🇺🇸 Rockford	2	2021

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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