| Holl Technologies Co. | Camarillo, California, United States |
| Holtzman Communications LLC | New York, New York, United States |
| Honeywell | Morristown, New Jersey, United States |
| Hong Kong Baptist University - Dept of Physics | Kowloon Tong, Hong Kong, China |
| Hong Kong University of Science and Technology - Dept of Physics | Kowloon, Hong Kong, China |
| Houston Electronic Cars | Houston, Texas, United States |
| Houston Greater Partnership | Houston, Texas, United States |
| Houston Technology Center | Houston, Texas, United States |
| Howard, Rice, Nemerovski, Canady, Falk & Rabkin | San Francisco, California, United States |
| Howrey Simon Arnold & White LLP | Washington, District Of Columbia, United States |