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3,357 companies in IT in Maryland.
Explore 3,357 IT in Maryland listed with contact details, employee size, revenue, and NAICS/SIC codes. Compare suppliers and service providers side by side and reach the right companies directly, or view the same industry in IT in California, IT in New York, IT in Texas.
Largest IT in Maryland companies by revenue
The highest-revenue companies in this directory. Open any profile for its full firmographics.
| # | Company | Location | Employees | Revenue |
|---|---|---|---|---|
| 1 | Tenable Inc | Columbia | 1,995 | $999M |
| 2 | Inovalon | Bowie | 4,000 | $826M |
| 3 | Xometry Inc | North Bethesda | 1,174 | $687M |
| 4 | RAND Worldwide Inc | Owings Mills | 400 | $408M |
| 5 | MarketWise LLC | Baltimore | 439 | $358M |
| 6 | Magicsoft Corp | Frederick | 610 | $219M |
| 7 | Voyatek Inc | Columbia | 800 | $168M |
| 8 | Chargebee Inc | North Bethesda | 1,158 | $150M |
| 9 | Stem | San Francisco | 624 | $145M |
| 10 | Communication Technologies Inc | — | 412 | $128M |
IT in Maryland companies by size and revenue
| Employees | Companies | Share |
|---|---|---|
| 1-50 | 3,116 | 92.8% |
| 51-200 | 183 | 5.5% |
| 201-1000 | 51 | 1.5% |
| 1001-5000 | 6 | 0.2% |
| 5001+ | 0 | 0.0% |
| Revenue | Companies | Share |
|---|---|---|
| Under $10M | 3,160 | 94.2% |
| $10M-$50M | 164 | 4.9% |
| $50M-$250M | 23 | 0.7% |
| $250M-$1B | 6 | 0.2% |
| $1B+ | 0 | 0.0% |
Share is of companies with a known value — 3,356 with headcount and 3,353 with revenue on file, as of Jul 17, 2026.
Frequently asked questions
How many IT in Maryland are there?
There are 3,357 IT in Maryland in the directory. Use the filters to narrow by employee count, revenue, or NAICS/SIC code.
How many large companies are in IT in Maryland?
17 of the 3,357 companies in IT in Maryland employ more than 500 people. See the size and revenue breakdown above for the full distribution.
What size are most IT in Maryland companies?
Most are small and mid-sized businesses: the size and revenue tables above show the full spread, from under $10M up to $1B+, across the 3,353 companies with revenue on file.
What information is included for each company?
Every listing includes the company name, location, website, employee size, revenue range where available, and NAICS/SIC classification, with a link to the full profile.
Where does this directory come from?
Listings are compiled and maintained by Factur, a sales and marketing firm for B2B manufacturers. Any company can request an update or removal from its profile page.