The largest companies in Michigan: 25 headquarters ranked by revenue from their 10-Ks

This ranking is for readers who want Michigan's biggest companies in order and on the record: suppliers looking for corporate buyers, job seekers, students, investors and sellers planning enterprise accounts. For the state's whole business market, including its 229,564 workplaces and how to check a business, see businesses in Michigan.

The 25 largest companies headquartered in Michigan

Each company's revenue and company-wide headcount come from its latest 10-K, and its headquarters from the principal executive office on the cover page. Revenue is total revenue as reported (net sales for manufacturers).

Notes on the figures:

• Financial companies report revenue their own way. Ally's figure is total net revenue and Rocket's is total revenue, net. Jackson Financial's revenue moves with the value of its hedges, so it swings more from year to year than its business does.
• Headcounts use each filing's own wording. Kelly Services counts its 3,600 US and 1,300 international full-time staff, not the temporary workers it places. Cooper-Standard's 22,000 includes 4,000 contingent workers. Dauch's 18,000 is before its February 2026 purchase of Dowlais Group. Lear and BorgWarner don't state a total in their 10-Ks.
• Fiscal years differ: MillerKnoll's ended May 30, 2026 and Champion Homes' March 28, 2026.

Gentex ($2.53 billion), Credit Acceptance ($2.32 billion), Sun Communities ($2.31 billion) and La-Z-Boy ($2.13 billion) would rank 26 to 29.

Who's missing, and why

Autoliv is the useful lesson. Ranked by its 10-K, it isn't a Michigan company; ranked by where Fortune and the Detroit Regional Chamber put it, it's a Fortune 500 company in Auburn Hills. Neither is wrong. Decide which rule you need before you compare lists.

Fortune 500 companies in Michigan

The Detroit Regional Chamber's business climate page reproduces Fortune's 2025 list for Southeast Michigan, ranked on 2024 revenue: General Motors (No. 18), Ford Motor (19), Penske Automotive Group (141), Lear (189), Ally Financial (255), BorgWarner (307), DTE Energy (337), Autoliv (407) and Masco (478). The Chamber says the region is home to 9 of Michigan's 18 Fortune 500 companies. The others, including Dow, Stryker and Whirlpool, are elsewhere in the state. Use Fortune's own site for current ranks.

The same page lists Crain's Detroit Business's 2025 ranking of the region's largest private companies by 2024 revenue, led by Penske Corp. ($44.0 billion), Atlas Oil ($7.7 billion) and Walbridge ($5.9 billion). Penske Corp. would rank third in the table above if it were public.

Where Michigan's largest companies are

• City of Detroit: five (General Motors, DTE Energy, Ally Financial, Rocket Companies and Dauch).
• Oakland County suburbs: eight, from Bloomfield Hills (Penske) and Southfield (Lear) to Auburn Hills (BorgWarner and PHINIA), Troy (Kelly and Champion Homes), Novi (Lineage) and Pontiac (UWM).
• Detroit's western suburbs: Ford in Dearborn, Masco in Livonia, Visteon in Van Buren Township and Cooper-Standard in Northville.
• West Michigan: Stryker (Portage), Whirlpool (Benton Harbor), UFP Industries (Grand Rapids) and MillerKnoll (Zeeland).
• Mid-Michigan and Ann Arbor: Dow (Midland), CMS Energy (Jackson), Jackson Financial (Lansing) and Domino's (Ann Arbor).

Seventeen of the 25 are in Detroit or its suburbs, but the four West Michigan companies and Dow are big enough that a statewide territory can't skip them.

Selling to Michigan's largest companies

Companies this size buy through supplier registration, security and insurance reviews and buyer-set payment terms, and the automakers and their suppliers run some of the most formal supplier programs in any industry. The 10-K helps you plan in three ways:

1. Segments show which business units have their own budgets. Ford, for example, reports separate segments rather than one car business.
2. Workforce detail shows where the people are. Several of these filings say how many employees work outside the US, which matters if you sell anything delivered to staff.
3. Fiscal year ends set the budget calendar: MillerKnoll plans to May and Champion Homes to March, while most of the list plans to December.

Illustrative example. The agency, rates and results are fictional; the workforce figures are from the 10-Ks.

Great Lakes Language Partners (greatlakeslanguage.example) translates safety training, HR policies and product manuals, and wants Michigan headquarters with large workforces abroad.

• General Motors: 155,000 employees, of whom 94,000 are salaried or hourly in the US, leaves about 61,000 outside it.
• Stryker: 56,000, with 28,000 in the US, leaves 28,000.
• Whirlpool: 41,000, with 39% in the US, leaves about 25,000.
• Dauch: 18,000, with 5,000 in the US, leaves 13,000.
• Together, about 127,000 employees outside the US at four headquarters within a few hours' drive.

It targets heads of learning and development and HR communications, not procurement, and proposes a paid pilot translating one plant's safety training. Bebop can find those people at each company and draft outreach that references the plant and country.

Subject: Safety training for [Company]'s [country] plants

Hi [first name],

[Company] reports [number] employees outside the US, and safety training usually reaches them weeks after the English version, if it's translated at all.

We translate and voice-over plant training into [languages] in five working days, with terminology checked by engineers. Could we translate one module for your [city] plant as a paid pilot and let your team judge it?

[Your name], Great Lakes Language Partners

Next step: prepare for accounts like these with enterprise account research.