| IDC | Massachusetts |
| IDC Engineering | Illinois |
| IDCA - International Data Center Authority | |
| IDCardPrinterSavings | California |
| IDCrawl, LLC | |
| IDCreator.com | |
| idcubed.com, Inc. | |
| Idea Associates, Inc. | |
| Idea Bright Marketing | Virginia |
| Idea Creative Marketing, Inc. | |
| Idea Entity | |
| Idea Forge Studios, LLC | |
| Idea Foundry, Inc. | Pennsylvania |
| Idea Lab Digital, LLC | New Jersey |
| Idea Maker, LLC | |
| Idea Mapping Success | Michigan |
| Idea Marketing Group, Inc. | Illinois |
| Idea People, LLC | Wisconsin |
| Idea Solutions | Maryland |
| Idea Spectrum | Washington |
| Idea Usher, Inc. | |
| Ideability, LLC | |
| IdeaBlade | California |
| IdeaBuddy | California |
| IDeACOM Network | Utah |
| Ideal Computer Systems | Iowa |
| Ideal Industries, Inc. | Illinois |
| Ideal Integrations, LLC | |
| Ideal Programmer | Illinois |
| Ideal Software Systems, Inc. | Mississippi |
| Ideal System Solutions, Inc. | Minnesota |
| Idealab | California |
| ideaLaunch.com | |
| IdealData, LLC | New York |
| Idealist Consulting | Oregon |
| Idealliance | Virginia |
| iDeals | New York |
| IdealSpot | |
| Ideaport, LLC | Texas |
| IdeaRocket | |
| Ideas and Training | Washington |
| Ideas That Work | Kansas |
| IDEAS Training | California |
| IDEAS-TEK | |
| Ideas2IT Technologies, LLC | |
| IdeaScale Corporation | California |
| Ideate, Inc. | California |
| IdeaTech Associates, Inc. | Virginia |
| IdeaTek | Kansas |
| Ideation Digital | |