The 32 largest companies in Rosemont (2026 list)

#	Company	Industry	Headquarters	Employees	Founded
1	US Foods usfoods.com Leading foodservice distributor partnering with restaurants & operators to provide innovative food offerings, e-commerce solutions, & technology to help businesses succeed	Food and Beverage Services	🇺🇸 Rosemont	24,825	n/a
2	Reyes Holdings reyesholdings.com Global food and beverage products distribution, including beer, spirits, quick-service restaurant supplies, and Coca-Cola brands, serving 200+ locations worldwide.	Food and Beverage Services	🇺🇸 Rosemont	7,649	1976
3	Wintrust Financial Corporation wintrust.com Provides banking, specialty finance, and wealth management services with a community-focused approach emphasizing integrity and client impact.	Financial Services	🇺🇸 Rosemont	5,374	1991
4	Littelfuse littelfuse.com A global industrial technology manufacturing company providing innovative solutions for industrial, transportation, and electronics markets with a commitment to diversity and equal employment opportunities	Appliances, Electrical, and Electronics Manufacturing	🇺🇸 Rosemont	5,181	1927
5	Mariano's marianos.com A unique culinary store offering high-quality products from around the world and locally, with amenities like a coffee shop, pizza oven, and sushi bar	Food and Beverage Services	🇺🇸 Rosemont	3,084	2010
6	Life Fitness / Hammer Strength lifefitness.com A global leader in fitness solutions for over 45 years, inspiring healthier lives through cardio, strength, group training, and rehabilitation products	Wellness and Fitness Services	🇺🇸 Rosemont	2,264	n/a
7	Culligan International culliganinternational.com Provides advanced water filtration, softening, and treatment systems for homes and businesses through a vast global dealer network.	Consumer Services	🇺🇸 Rosemont	2,191	1936
8	Tecta America Commercial Roofing tectaamerica.com A leading commercial roofing contractor with over 90 locations, providing nationwide roofing solutions including installation, maintenance, disaster response, and asset management	Construction	🇺🇸 Rosemont	1,999	2000
9	Seasons Hospice & Palliative Care accentcare.com This company provides care services and has moved to a new LinkedIn page Follow them at wwwlinkedincom/companyaccentcare	Hospitals and Health Care	🇺🇸 Rosemont	1,302	1997
10	LRS lrsrecycles.com A leading waste and recycling company providing integrated services to millions of residential and commercial customers across ten states in North America	Waste Collection	🇺🇸 Rosemont	906	1999
11	Wintrust Mortgage wintrustmortgage.com A national mortgage lender part of a multi-billion dollar bank holding company, offering a wide range of mortgage products with expertise and personalized guidance	Financial Services	🇺🇸 Rosemont	760	1981
12	Avalign Technologies avalign.com A premier supplier of surgical implants, instruments, and delivery systems with a commitment to excellence, integrity, innovation, and investing in its diverse team for growth and success	Medical Equipment Manufacturing	🇺🇸 Rosemont	549	2005
13	IMO Health imohealth.com Ensures clinical data integrity and quality for healthcare providers, enabling accurate documentation, optimized reimbursements, and better patient care decisions.	IT Services and IT Consulting	🇺🇸 Rosemont	527	1994
14	Luminare Health luminarehealth.com A leading national health benefit plan administrator with over 44 years of experience, specializing in self-funded employer groups, focusing on cost savings and stabilization for clients	Insurance	🇺🇸 Rosemont	513	n/a
15	American Academy of Orthopaedic Surgeons (AAOS)aaos.org A global organization providing education, advocacy, and practice management services for orthopaedic surgeons and allied health professionals, promoting excellence and lifelong learning in musculoskeletal care	Non-profit Organizations	🇺🇸 Rosemont	505	n/a
16	Batory Foods batoryfoods.com National distributor supplying high-quality food ingredients to manufacturers in the US, connecting producers with food and beverage brands for efficient delivery	Food and Beverage Services	🇺🇸 Rosemont	454	1979
17	ISSA-The Association for Cleaning & Facility Solutions issa.com The company is a leading trade association for the cleaning industry worldwide, offering educational products, trade shows, certification standards, and more	Facilities Services	🇺🇸 Rosemont	448	1923
18	American Academy of Dermatology aad.org A non-profit association promoting leadership in dermatology, excellence in patient care through education, research, and advocacy, supporting dermatologists nationwide	Non-profit Organizations	🇺🇸 Rosemont	426	1938
19	IOR Global Services iorworld.com Provider of global mobility and talent development solutions, specializing in Destination Services, Language Training, and Intercultural Training for effective employee relocation and cultural integration	Professional Training and Coaching	🇺🇸 Rosemont	425	1979
20	Kuvare Holdings kuvare.com KUVARE offers retirement and protection solutions through their affiliated insurance companies, focusing on sustainable growth and providing value to middle-market consumers	Insurance	🇺🇸 Rosemont	421	2015
21	Physicians Immediate Care physiciansimmediatecare.com A Midwest leader in urgent care and occupational health services, providing affordable and convenient healthcare with advanced technologies and robust COVID-19 safety protocols	Hospitals and Health Care	🇺🇸 Rosemont	382	1987
22	Rosemont College rosemont.edu A co-educational liberal arts institution offering undergraduate and graduate degree programs, emphasizing cultural, religious, and artistic development alongside practical skills and social responsibility	Higher Education	🇺🇸 Rosemont	370	1921
23	Dairy Management Inc.usdairy.com A company funded by dairy farmers and importers, focused on increasing demand for dairy products through research, education, innovation, and maintaining confidence in the industry	Dairy Product Manufacturing	🇺🇸 Rosemont	322	n/a
24	Feldco Windows, Siding, Doors and Roofing 4feldco.com Exterior home remodeling company specializing in energy efficient windows, vinyl siding, doors, and roofing for residential properties	Construction	🇺🇸 Rosemont	232	1976
25	Independent Suppliers Group isg.coop A progressive office products dealer group providing value added programs and services to independent business products dealers in the US and Caribbean	Retail Office Equipment	🇺🇸 Rosemont	67	1977
26	Wynnchurch Capital, L.P.wynnchurch.com A leading middle-market private equity investment firm partnering with companies in the US and Canada for growth and profit improvement	Venture Capital and Private Equity Principals	🇺🇸 Rosemont	61	1999
27	Western & Southern Life westernsouthern.com This company operates within the financial services sector, offering various financial products and services to clients	Financial Services	🇺🇸 Rosemont	50	1888
28	Venture One Real Estate ventureonere.com Real estate private equity fund manager and developer specializing in industrial properties, managing investments, development, construction, and asset management in Midwest and Northeast.	Real Estate	🇺🇸 Rosemont	43	1999
29	NBI Logistics INC shipwithnbi.com Customized logistics solutions for businesses of all sizes Streamlining supply chain operations and optimizing shipping processes with team of experienced professionals	Transportation, Logistics, Supply Chain and Storage	🇺🇸 Rosemont	26	2017
30	DRIG AOTA drigcorporate.com Integrated energy company involved in all aspects of the energy industry, from reserves to distribution, with a focus on growth, development, and strategic relationships	Oil and Gas	🇺🇸 Rosemont	24	2010
31	Salik Group Services salikgroupservices.com Innovative cloud solutions provider offering consulting and technology solutions to global brands, specializing in transforming uncertainty into opportunities for businesses	IT Services and IT Consulting	🇺🇸 Rosemont	17	2009
32	Route Freight routefreight.ai A tech-driven 3PL company using expertise and technology to provide exceptional freight services to customers without the company name	Transportation, Logistics, Supply Chain and Storage	🇺🇸 Rosemont	4	2023

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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