317-622-8970Search all companies →Largest IT Companies in Michigan (2026)
Factur's directory lists 3,826 IT companies in Michigan. These are the 10 largest of them by annual revenue, led by Fiserv Inc ($20.1B), S&P Global Inc ($13.8B) and Akamai Technologies Inc ($3.9B).
Size mix: of the 3,814 with a known headcount, 93.3% have 1-50 employees, 4.6% 51-200, 1.5% 201-1000, 18 companies 1001-5000 and 4 companies 5001+. 31 employ more than 500 people.
The 10 largest IT companies in Michigan by annual revenue
| # | Company | City | Employees | Annual revenue |
|---|---|---|---|---|
| 1 | Fiserv Inc | Milwaukee | 42,000 | $20.1B |
| 2 | S&P Global Inc | — | 40,450 | $13.8B |
| 3 | Akamai Technologies Inc | Cambridge | 10,250 | $3.9B |
| 4 | Cengage Inc | — | 4,400 | $1.5B |
| 5 | Altair Engineering Inc | Troy | 3,400 | $666M |
| 6 | Opus IVS Inc | Dexter | 3,000 | $615M |
| 7 | OneStream Inc | Birmingham | 1,623 | $602M |
| 8 | Elektrobit Corp | — | 2,429 | $561M |
| 9 | K?rber Supply Chain | Bad Nauheim | 2,622 | $551M |
| 10 | dSPACE GmbH | Paderborn | 2,400 | $504M |
How this list is ranked
Companies are ranked by annual revenue (USD) as recorded on each company's profile in the Factur directory, highest first; companies with the same revenue are ordered by employee count. Only companies with a positive revenue figure on file are ranked, so a large private company with no reported revenue can be missing. The list covers companies whose record places them in Michigan and whose Factur industry is IT. Figures are a snapshot of the directory, refreshed when the rankings are regenerated; open a profile for its current data.