317-622-8970Search all companies →Largest IT Companies in Ohio (2026)
Factur's directory lists 3,724 IT companies in Ohio. These are the 10 largest of them by annual revenue, led by TTEC ($2.3B), Reynolds Co ($1.3B) and Hyland Software Inc ($1B).
Size mix: of the 3,724 with a known headcount, 93.3% have 1-50 employees, 5% 51-200, 1.3% 201-1000, 14 companies 1001-5000 and 1 company 5001+. 25 employ more than 500 people.
The 10 largest IT companies in Ohio by annual revenue
| # | Company | City | Employees | Annual revenue |
|---|---|---|---|---|
| 1 | TTEC | Greenwood Village | 51,600 | $2.3B |
| 2 | Reynolds Co | Dayton | 4,300 | $1.3B |
| 3 | Hyland Software Inc | Westlake | 3,500 | $1B |
| 4 | 2Checkout.com Inc | Columbus | 4,500 | $945M |
| 5 | CoverMyMeds LLC | Columbus | 4,185 | $752M |
| 6 | MRI Software LLC | Solon | 3,500 | $735M |
| 7 | Paycor Inc | Cincinnati | 2,900 | $700M |
| 8 | ECHO Health Inc | Westlake | 500 | $631M |
| 9 | Quantum Health | Dublin | 2,313 | $489M |
| 10 | OEConnection LLC | Richfield | 1,396 | $322M |
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 Ohio 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.