The 35 largest companies in Dubuque (2026 list)

#	Company	Industry	Headquarters	Employees	Founded
1	Hirschbach hirschbach.com A leading refrigerated carrier delivering time-sensitive freight across 48 states, offering a range of services including Dedicated, Expedited, and Logistics Solutions	Truck Transportation	🇺🇸 Dubuque	1,406	1935
2	University of Dubuque dbq.edu A private university providing professional programs with a liberal arts core, preparing students for their purpose and meaningful contributions to the world	Higher Education	🇺🇸 Dubuque	1,075	1852
3	Cottingham & Butler cottinghambutler.com An innovative insurance broker offering property & casualty and employee benefit solutions with a commitment to delivering superior results and growth	Insurance	🇺🇸 Dubuque	989	1887
4	Flexsteel Industries Inc.flexsteelindustries.com Manufacturing, importing, and exporting a wide range of home furnishings through diverse product portfolios to suit various styles.	Furniture and Home Furnishings Manufacturing	🇺🇸 Dubuque	626	1893
5	Loras College loras.edu Loras College provides academically challenging, faith-centered education, fostering active learners, ethical decision makers, and responsible contributors in a diverse community	Higher Education	🇺🇸 Dubuque	573	1839
6	Medical Associates Clinic mahealthcare.com A leading multispecialty group practice clinic in Iowa providing superior healthcare with over 190 providers and various specialty services in multiple locations	Hospitals and Health Care	🇺🇸 Dubuque	556	1924
7	Foodliner foodliner.com The company provides customized transportation services for dry bulk and liquid food products across North America, claiming the title of largest US bulk food carrier	Truck Transportation	🇺🇸 Dubuque	544	1958
8	Dupaco Community Credit Union dupaco.com A not-for-profit financial cooperative that helps members save money with accounts, lower loan rates, service fees, insurance, and financial education	Financial Services	🇺🇸 Dubuque	477	1948
9	Truck Country truckcountry.com A leading dealer offering new and used medium- and heavy-duty trucks, expert service, parts, and financing with 26 locations across the US	Truck Transportation	🇺🇸 Dubuque	472	1958
10	City of Dubuque, Iowa cityofdubuque.org An organization in Dubuque dedicated to delivering excellent municipal services, offering competitive salaries, benefits, and various career opportunities across different departments	Government Administration	🇺🇸 Dubuque	440	1833
11	Clarke University clarke.edu A Catholic, liberal arts university in Dubuque, Iowa offering undergraduate, adult, and graduate programs aiming to prepare students for positive impact	Higher Education	🇺🇸 Dubuque	426	1843
12	Holy Family Catholic Schools holyfamilydbq.org A Catholic school system in Northeast Iowa providing premier education from early childhood to 12th grade, with a focus on professional growth and work-life balance	Primary and Secondary Education	🇺🇸 Dubuque	372	n/a
13	Theisen's Home Farm Auto theisens.com The company focuses on providing a wide range of merchandise in various categories like home, farm, auto, and pets, with great prices and exceptional service	Retail	🇺🇸 Dubuque	348	1927
14	HODGE hodgecompany.com A performance-driven logistics and material handling company with 60+ years experience, providing smart solutions for supply chain development and execution	Transportation, Logistics, Supply Chain and Storage	🇺🇸 Dubuque	337	1958
15	A.Y. McDonald Mfg. Co.aymcdonald.com Manufacturer of water works valves, natural gas valves, and water pumping systems with a tradition of quality, honesty, and excellent customer service since 1856	Utilities	🇺🇸 Dubuque	329	1856
16	Platinum Supplemental Insurance, Inc.pltnm.com Marketing cost-effective, benefit-rich supplemental insurance policies for families dealing with critical illnesses or injuries, focusing on recovery and financial security Passionate, integrity-driven service	Insurance	🇺🇸 Dubuque	273	1995
17	McCoy Construction & Forestry mccoycf.com A leading equipment dealer with 24 locations across multiple states, specializing in John Deere Construction and Forestry equipment sales, rental, parts, and service	Retail	🇺🇸 Dubuque	245	n/a
18	Hills & Dales hillsdales.org A not-for-profit organization in Eastern Iowa providing services for individuals with intellectual and physical disabilities, focusing on enhancing quality of life and community inclusion	Individual and Family Services	🇺🇸 Dubuque	186	1973
19	SISCO siscobenefits.com Third-party benefit administration firm offering cost control solutions, high-quality customer service, integrated medical management, and wellness services to maximize employee benefits value	Insurance	🇺🇸 Dubuque	174	n/a
20	Conlon Construction conlonco.com A company with over 120 years of experience offering commercial construction services, including management, design-build, development, fixturing, and maintenance Committed to quality and customer relationships	Construction	🇺🇸 Dubuque	172	1903
21	Emmaus University emmaus.edu A 4-year private college in Dubuque, Iowa offers double majors in professional and biblical studies, aiming to educate learners impacting the world for Christ	Education Administration Programs	🇺🇸 Dubuque	169	1941
22	MedOne Pharmacy Benefit Solutions medone-rx.com MedOne helps organizations and health plan members save money on prescriptions by bypassing traditional middlemen and forming direct relationships with pharmacies	Insurance and Employee Benefit Funds	🇺🇸 Dubuque	168	1999
23	Sedona Staffing Services careerpros.com A certified woman-owned nationwide recruiting and executive search firm specializing in custom staffing solutions and career services in agriculture	Staffing and Recruiting	🇺🇸 Dubuque	163	1993
24	The Finley Hospital unitypoint.org A top-rated community hospital in Dubuque, Iowa offering a full-range of medical services with caring and dedicated employees and medical staff	Hospitals and Health Care	🇺🇸 Dubuque	163	n/a
25	CBCS, LLC cbcsclaims.com CBCS is a Third-Party Claims Administrator specializing in workers' compensation and property/casualty claims management with a focus on client-driven solutions and cost control	Insurance	🇺🇸 Dubuque	162	1983
26	Hartig Drug hartigdrug.com A retail pharmacy company with a 100+ year history, offering diverse product selections and pharmacy services in multiple communities with a focus on customer care	Pharmaceutical Manufacturing	🇺🇸 Dubuque	156	1904
27	Spahn & Rose Lumber Co.spahnandrose.com Established in 1904, this company offers retail lumber services with a focus on knowledgeable staff, exceptional service, and a diverse product selection	Wholesale Building Materials	🇺🇸 Dubuque	153	1904
28	Kunkel & Associates, Inc.kunkel-inc.com A growing insurance brokerage in Dubuque, IA offering consultative services for commercial accounts in group benefits, property & casualty, and transportation coverages	Insurance	🇺🇸 Dubuque	136	2003
29	E91 goe91.com Provider of quality support services since 1991, offering engineering solutions, onsite staffing, and product development assistance to help clients succeed efficiently	Industrial Machinery Manufacturing	🇺🇸 Dubuque	98	1991
30	River City Logistics Inc.rclogistics.com Leading shipping solutions provider offering dedicated fleet services, freight brokerage, full truckload/partial truckload, temperature-controlled carriage, expedited, heavy haul, intermodal, and drayage solutions	Transportation, Logistics, Supply Chain and Storage	🇺🇸 Dubuque	71	2018
31	Cartegraph opengov.com This company specializes in providing SaaS solutions to help government agencies, higher education institutions, and private companies manage physical assets efficiently for high-performance operations	Software Development	🇺🇸 Dubuque	35	1994
32	Dubuque Screw Products Inc dbqscrewproducts.com A production machine shop specializing in precision machining, manufacturing components from various materials with a strong focus on customer service	Machinery Manufacturing	🇺🇸 Dubuque	31	1946
33	First Community Trust, N.A.fctrust.com Offering clients comprehensive financial advice and investment management through a dedicated team of experts, committed to providing exceptional service for a lifetime and beyond	Financial Services	🇺🇸 Dubuque	27	2001
34	InfoWeb Systems, Inc.infowebsystems.com A global IT services provider founded in 1995, delivering exceptional service with top-notch professionals and custom software solutions using a Global Delivery Model	IT Services and IT Consulting	🇺🇸 Dubuque	17	n/a
35	Verena Street Coffee Co.verenastreet.com Midwest coffee roasting company specializing in craft roasted specialty coffee available in grocery stores, club stores, and online for a convenient at-home coffee experience	Food and Beverage Manufacturing	🇺🇸 Dubuque	9	2010

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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