| Wildtype | California |
| Wildwood Design | Virginia |
| Wildwood Electronics, Inc. | Alabama |
| Wilen | New York |
| WIley University | Texas |
| Wilford Design, Inc. | Washington |
| Wilkes Communications, LLC | North Carolina |
| Wilkes University | Pennsylvania |
| Wilkins Consulting, LLC | Georgia |
| Will & Grail | |
| Will Ventures | Massachusetts |
| Willa, Inc. | |
| Willamette PC Services | Oregon |
| Willamette University School of Computing and Information Sciences | Oregon |
| Willan Technologies | Ohio |
| Willard Interactive, Inc. | Texas |
| WillCo Tech, LLC | Ohio |
| WillDom Global, LLC | |
| William & Mary Computer Science | Virginia |
| William A. Stein | |
| William Carey International University | California |
| William Carey University Mathematics Department | Mississippi |
| William Horton Consulting | Colorado |
| William Howard Taft University | Colorado |
| William James College | Massachusetts |
| William Jewell College | Missouri |
| William Lewis | Minnesota |
| William Paterson University Department of Computer Science | New Jersey |
| William Paterson University Department of Mathematical Sciences | New Jersey |
| William Peace University | North Carolina |
| William Penn University | Iowa |
| William Travis Group, Inc. | Illinois |
| William Woods University | Missouri |
| Williams Baptist University. | Arkansas |
| Williams College | Massachusetts |
| Williams College Computer Science | Massachusetts |
| Williams College Mathematics and Statistics | Massachusetts |
| Williams Consulting, LLC | Maryland |
| Williams Forrest | Pennsylvania |
| Williams Lea | New York |
| Williams Marketing Systems, LLC | |
| Williams Randall Advertising | |
| Williams Software Associations Corporation | |
| Williams Technology Group, LLC | |
| Williams Web Solutions | Texas |
| Williamsburg Technical College | South Carolina |
| Williamson College | Tennessee |
| Williamston StartUP Marketing | |
| Willies Computer Software Co. | Texas |
| Willing Minds, LLC | California |