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List of corporate groups and holding companies in Michigan

Tamtam tracks 90 corporate groups and holding companies headquartered in Michigan. This list ranks the 50 largest by number of employees on LinkedIn, led by Lear Corporation, Trinity Health and Gi Group. Their median headcount is 963. Half of them were founded in 1973 or later. The most common headquarters are Detroit (5), Grand Rapids (4) and Southfield (4).

馃嚭馃嚫 Michigan50 companiesUpdated Nov 11, 2026

This selection of large corporate groups and holding companies in Michigan reveals a strong presence in manufacturing, particularly automotive, alongside a significant healthcare sector. Notable examples include Lear Corporation, which designs and manufactures seating and electronic systems for automakers; Trinity Health, a not-for-profit health care system; and McLaren Health Care, an integrated health system. Other companies like Haworth specialize in furniture manufacturing, and Guardian Industries produces glass products.

The data shows a concentration of healthcare providers, with Trinity Health, McLaren Health Care, Bronson Healthcare, Munson Healthcare, and MyMichigan Health all headquartered in Michigan. This indicates a robust and localized healthcare industry, serving diverse communities across the state.

#CompanyIndustryHeadquarters EmployeesFounded
1
Lear Corporationlear.com

Designs and manufactures advanced seating and electronic systems for major automakers, focusing on comfort, safety, and efficiency worldwide.

Motor Vehicle Manufacturing 馃嚭馃嚫 Southfield 52,409 n/a
2
Trinity Healthtrinity-health.org

Not-for-profit, Catholic health care system with 123,000 colleagues and 27,000 physicians across 26 states, providing diverse communities with hospitals and other health services

Hospitals and Health Care 馃嚭馃嚫 Livonia 18,369 n/a
3
Gi Groupgigroup.com

Providing temporary, permanent, professional staffing, executive search, outsourcing, training, outplacement, and HR consultancy services worldwide across multiple industries.

Staffing and Recruiting 馃嚭馃嚫 Milan 17,915 n/a
4
Real Estate Onerealestateone.com

A Michigan-based real estate company offering a variety of services and brands while prioritizing core values of excellence, integrity, and teamwork

Real Estate 馃嚭馃嚫 Southfield 10,741 1929
5
Learning Care Grouplearningcare.com

Providing safe, quality early learning and child care for children ages 6 weeks to 12 years across multiple nationwide locations.

Education Administration Programs 馃嚭馃嚫 Novi 10,328 n/a
6
McLaren Health Caremclaren.org

Integrated health system with hospitals, physician network, cancer centers, insurance, and medical education across Michigan, Indiana, and Ohio.

Hospitals and Health Care 馃嚭馃嚫 Grand Blanc 9,301 1914
7
Bronson Healthcarebronsonhealth.com

A leading healthcare system in southwest Michigan with over 9,000 employees, offering primary to critical care services across 100 locations

Hospitals and Health Care 馃嚭馃嚫 Kalamazoo 4,836 n/a
8
Munson Healthcaremunsonhealthcare.org

Leading healthcare system in northern Michigan with nine hospitals, advanced medical technology, partnerships with major health systems, and comprehensive care for 540,000 residents

Hospitals and Health Care 馃嚭馃嚫 Traverse City 4,644 1915
9
Haworthhaworth.com

A family-owned company founded in 1948, Haworth is a global leader in creating innovative workspaces through furniture, interior architecture, and technology solutions

Furniture and Home Furnishings Manufacturing 馃嚭馃嚫 Holland 4,358 1948
10
Guardian Industriesguardian.com

Manufacture high-performance float, coated, and fabricated glass products for architectural, residential, transportation, and technical applications worldwide.

Glass, Ceramics and Concrete Manufacturing 馃嚭馃嚫 Auburn Hills 4,055 1932
11
MyMichigan Healthmymichigan.org

A non-profit health system affiliated with the University of Michigan, providing care, community benefits, and economic impact in Michigan

Hospitals and Health Care 馃嚭馃嚫 Midland 3,382 1984
12
UFP Industriesufpi.com

A global holding company with subsidiaries in packaging, construction, and retail solutions, manufacturing and distributing products for various industries worldwide

Holding Companies 馃嚭馃嚫 Grand Rapids 2,995 1955
13
Genthermgentherm.com

Global leader in thermal management and pneumatic comfort technologies for automotive and medical industries Specializes in creating innovative heating, cooling, and ventilating devices

Manufacturing 馃嚭馃嚫 Novi 2,892 n/a
14
Project Worldwideproject.com

Creative alliance combining multiple agencies focused on ambitious collaboration and meaningful work through hyperconnected creativity and diverse marketing expertise.

Advertising Services 馃嚭馃嚫 Auburn Hills 2,678 n/a
15
PIANOFORTE GROUPpianoforteholding.it

A fashion retail group formed by the merger of Inticom and Kuvera, led by Italian families, operating with numerous stores worldwide

Retail 馃嚭馃嚫 Milan 2,602 2011
16
Universal Logistics Holdings, Inc.universallogistics.com

Customized transportation and logistics solutions across North America, including transportation, intermodal, contract logistics, and global trade management services.

Transportation, Logistics, Supply Chain and Storage 馃嚭馃嚫 Warren 2,408 n/a
17
Barton Malowbartonmalow.com

Innovative 100% employee-owned construction enterprise focused on building projects that impact communities and transform the industry

Construction 馃嚭馃嚫 Southfield 2,323 1924
18
Universal Forest Products, Inc.ufpi.com

A global corporation with 150 operations and 13,000 employees, specializing in wood and wood-alternative products for retail, industrial, and construction markets worldwide

Wholesale Building Materials 馃嚭馃嚫 Grand Rapids 2,087 1955
19
AUTOKINITONautokiniton.com

Autokiniton invests in Tier 1 automotive suppliers, offering innovative solutions in metal stampings, welded assemblies, and tubular products for the automotive industry

Motor Vehicle Manufacturing 馃嚭馃嚫 New Boston 1,912 2018
20
Tower Internationalautokiniton.com

Autokiniton invests in Tier 1 automotive suppliers, offering innovative solutions for metal stampings, welded assemblies, and structural components in the automotive industry

Motor Vehicle Manufacturing 馃嚭馃嚫 New Boston 1,766 n/a
21
Champion Home Builders, Inc.championhomes.com

Industry-leading off-site construction company producing residential and commercial buildings across North America and the UK, distributed through independent retailers and serving various sectors

Construction 馃嚭馃嚫 Troy 1,633 1953
22
Cabinetworks Groupcabinetworksgroup.com

Leading privately held cabinetmaker in the USA, with 25 locations and 16 brands, dedicated to bringing life and humanity to kitchen cabinets

Wholesale Building Materials 馃嚭馃嚫 Livonia 1,537 2020
23
Morleymorleycompanies.com

A company serving global Fortune 500 companies and institutions, offering customer service, event management, exhibit installations, and trade show services since 1863

Advertising Services 馃嚭馃嚫 Saginaw 1,515 1863
24
Delta Dental of Michigandeltadentalmi.com

Leading dental plan administrator providing superior dental benefits and supporting initiatives to improve oral and overall health in communities nationwide

Insurance 馃嚭馃嚫 Okemos 1,059 1957
25
AirLifemyairlife.com

A leader in medical device manufacturing, offering anesthesia and respiratory care products with a focus on patient safety and comfort Serving 97 countries worldwide

Medical Equipment Manufacturing 馃嚭馃嚫 Grand Rapids 963 1981

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26
Doeren Mayhewdoeren.com

Professionals providing guidance and direction to businesses and nonprofit organizations to traverse complex business terrain. Offers audit, tax, and business consulting services.

Accounting 馃嚭馃嚫 Troy 929 1932
27
AF - Groupafgroup.com

A leading holding company providing specialty insurance solutions through independent agents nationwide, underwritten by licensed insurer subsidiaries Visit afgroupcom for more information

Holding Companies 馃嚭馃嚫 Lansing 901 2016
28
Health Management Associateshealthmanagement.com

Health Management Associates is a national research and consulting firm specializing in health care program and policy issues for various organizations

Hospitals and Health Care 馃嚭馃嚫 Okemos 882 1985
29
Gestamp North Americagestamp.com

Global automotive components manufacturer specializing in lightweight, safe products for vehicles Focus on innovation, energy efficiency, and environmental impact Operates internationally with extensive R&D and production capabilities

Motor Vehicle Manufacturing 馃嚭馃嚫 Troy 848 1997
30
BFF Banking Groupbff.com

Specialized in non-recourse factoring of public administration receivables, securities services, banking, and corporate payments across Europe.

Financial Services 馃嚭馃嚫 Milan 816 1985
31
Zeigler Automotive Groupzeigler.com

A leading dealer group in the US with diverse automotive and motorsports offerings, executive training, finance, insurance, and leasing services

Motor Vehicle Manufacturing 馃嚭馃嚫 Kalamazoo 815 1975
32
Detroit Manufacturing Systems (DMS)dmsna.com

Transforming lives by providing a welcoming environment for team members to learn new skills and deliver high-quality parts using innovative technology on time

Manufacturing 馃嚭馃嚫 Detroit 801 2012
33
Masco Cabinetrycabinetworksgroup.com

A leading manufacturer of cabinetry brands offering career development opportunities in a dynamic environment focused on growth and empowerment

Wholesale Building Materials 馃嚭馃嚫 Ann Arbor 797 n/a
34
Sun Communities & Sun RV Resortslinkedin.com

Explore the new page for a company focused on outdoor leisure activities and communities, offering a range of outdoor experience options

Real Estate 馃嚭馃嚫 Southfield 723 1975
35
Webasto Americaswebasto.com

Manufacturing automotive roof systems and electrification solutions, including sunroofs, serving global markets with extensive production and family-owned heritage.

Motor Vehicle Parts Manufacturing 馃嚭馃嚫 Auburn Hills 665 n/a
36
L&W Engineeringautokiniton.com

An automotive investment firm supporting Tier 1 suppliers, specializing in metal stampings, welded assemblies, and structural components for the industry

Motor Vehicle Manufacturing 馃嚭馃嚫 New Boston 645 1973
37
Acro Service Corpacrocorp.com

Integrated staffing and consulting solutions provider with global reach, specializing in workforce management for various industries with a focus on quality and customer service

Staffing and Recruiting 馃嚭馃嚫 Livonia 625 1982
38
The Christman Companychristmanco.com

A leading commercial construction management firm partnering with organizations across various industries to deliver expertise, leadership, and partnership in project execution

Construction 馃嚭馃嚫 Lansing 618 1894
39
First National Bank of Americafnba.com

A nationally charted bank offering high CD rates, high-yield savings accounts, Non-QM mortgages, commercial loans, Self Directed IRA loans, and exceptional customer service

Banking 馃嚭馃嚫 East Lansing 581 1955
40
Coldwell Banker Schmidt Realtorscbgreatlakes.com

Established in 1927, we have grown to be one of the top real estate brokerages with 70 offices, 1,400 agents, and $3 Billion in sales volume

Real Estate 馃嚭馃嚫 Traverse City 576 1927
41
Avancez LLCavancezassembly.com

Specializing in creative modular assembly solutions and integrated global supply chain management for power train, chassis, and tire modules with just-in-time delivery

Motor Vehicle Manufacturing 馃嚭馃嚫 Clarkston 570 2012
42
Highstreet Insurance Partnershsip.com

National insurance agency with 150+ partners, 2300 employees offering personal and business coverage solutions to help people pursue opportunities with confidence

Insurance 馃嚭馃嚫 Traverse City 548 2018
43
Link Engineering Companylinkeng.com

Customized solutions provider with a focus on high value, manufacturing precision equipment, offering test services, research, simulation, quality control, and cutting tools

Engineering Services 馃嚭馃嚫 Plymouth 547 1935
44
PVS Chemicalspvschemicals.com

A family-owned company providing safe and reliable delivery of diversified chemical products globally for a sustainable future

Chemical Manufacturing 馃嚭馃嚫 Detroit 540 1945
45
Rocket Companiesrocketcompanies.com

Provides fast, trusted digital solutions for complex transactions across mortgages, fintech, real estate, automotive, and other industries.

Financial Services 馃嚭馃嚫 Detroit 505 1985
46
Novo Building Productsnovobp.com

Leading manufacturer and distributor of stair parts, mouldings, doors, and specialty millwork, along with board products, operating multiple brands Headquarters in Zeeland, Mich

Wholesale Building Materials 馃嚭馃嚫 Zeeland Township 500 2016
47
Edw. C. Levy Co.edwclevy.com

A diverse group of companies providing innovative solutions and services to industries such as steel mills, construction, mining, agriculture, and real estate development globally

Construction 馃嚭馃嚫 Dearborn 475 1918
48
Cascade Engineeringcascadeng.com

Manufacturer and marketer with expertise in large part injection molding Offers products and consulting services across various industries, prioritizing sustainability and innovation

Plastics Manufacturing 馃嚭馃嚫 Grand Rapids 466 1973
49
ROCKrock.com

Family office managing investments and initiatives to foster growth, innovation, and prosperity in communities where employees live and work.

Holding Companies 馃嚭馃嚫 Detroit 460 2007
50
Duravent Groupduraventgroup.com

Global HVAC industry technology leader with venting system innovations, 15 locations across North America, best-in-class design, manufacturing, distribution, and customer service

Manufacturing 馃嚭馃嚫 Detroit 458 1956

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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 Nov 11, 2026.

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