| Business | Phone |
| Fundation Latino Americana 8303 Nairn St, Houston 77074 | (713) 592-8750 |
| Houston Ear Research Fndtn 7737 Southwest Fwy 630, Houston 77074 | (713) 771-9966 |
| A Window Of Opportunity Fndtn 5623 San Felipe St, Houston 77056 | (713) 877-8367 |
| Albert & Ethel Herzstein 6131 Westview Dr, Houston 77055 | (713) 681-7868 |
| American Heritage Education 3701 W Alabama St 200, Houston 77027 | (713) 627-2698 |
| American Porphyria Foundation 4900 Woodway Dr 780, Houston 77056 | (713) 266-9617 |
| Battleship Texas Foundation 10575 Katy Fwy, Houston 77024 | (713) 827-9620 |
| Benjamin George Echols Fndtn 16300 Kuykendahl Rd, Houston 77068 | (281) 444-6116 |
| Brentwood Community Foundation 13033 1/2 Landmark St, Houston 77045 | (713) 729-7122 |
| Brown Foundation Inc 2217 Welch St, Houston 77019 | (713) 523-6867 |
| Chardonea Foundation 2211 Greenbriar Colony Dr, Houston 77032 | (281) 227-1017 |
| Children's Fund Houston 77056 | (713) 961-1813 |
| Childress Foundation 1980 Post Oak Blvd, Houston 77056 | (713) 627-7900 |
| Clark Read Foundation 2711 Main St, Houston 77002 | (713) 652-3966 |
| Clayton Foundation-Research 1 Riverway 1440, Houston 77056 | (713) 626-8646 |
| Crohn's & Colitis 5120 Woodway Dr, Houston 77056 | (713) 403-0145 |
| Cullen Foundation 601 Jefferson St 40, Houston 77002 | (713) 651-8837 |
| Diffa 3815 Garrott St, Houston 77006 | (713) 528-0505 |
| Doctors Service Foundation 5808 Airline Dr, Houston 77076 | (713) 695-5572 |
| Donald R Watkins Meml Fndtn 4900 Fannin St, Houston 77004 | (713) 522-3108 |
| Etche America Foundation 405 Main St, Houston 77002 | (713) 237-0303 |
| Foundation For The Retarded 3550 W Dallas St, Houston 77019 | (713) 525-8484 |
| Foundation Of America 13329 Veterans Memorial Dr, Houston 77014 | (281) 895-0333 |
| Fundacion Latino Americana 6666 Harwin Dr 370, Houston 77036 | (713) 772-2366 |
| George B & Irene Lindler Fndtn 5036 Tiffany Dr, Houston 77045 | (713) 433-6724 |
| Menninger Foundation 2600 Gessner Dr, Houston 77080 | (713) 733-3320 |
| Mecca Maslid 6246 Highway 6 S, Houston 77083 | (281) 564-8383 |
| Gordon & Mary Cain Foundation 8 E Greenway Plz 702, Houston 77046 | (713) 960-9283 |
| Greater Houston Cmnty Fndtn 4550 Post Oak Place Dr, Houston 77027 | (713) 960-0054 |
| Greater Houston Community 4550 Post Oak Place Dr 100, Houston 77027 | (713) 960-1990 |
| Greater Texas Education 11231 Richmond Ave D101, Houston 77082 | (281) 597-1630 |
| Hamman & Mary Foundation 3336 Richmond Ave, Houston 77098 | (713) 522-9891 |
| Lone Star Chapter-Natl Hemo 17414 Fairgrove Park Dr, Houston 77095 | (281) 861-6644 |
| Limbs Of Love Foundation Inc 310 Greenbelt Dr, Houston 77079 | (281) 497-1855 |
| Houston Childrens Educational 952 Echo Ln 350, Houston 77024 | (713) 722-8555 |
| Houston Endowment Inc 600 Travis St 6400, Houston 77002 | (713) 238-8100 |
| Kick Drugs Out Of America 427 W 20th St 203, Houston 77008 | (713) 868-6003 |
| Kid's Unlimited Foundation Inc 1530 Fruge Rd, Houston 77047 | (713) 433-2575 |
| Howell Foundation 1111 Fannin St 1550, Houston 77002 | (713) 655-1890 |
| Ibn Sina Foundation 11246 S Wilcrest Dr, Houston 77099 | (832) 328-1680 |
| John S Dunn Research Fndtn 3355 W Alabama St 720, Houston 77098 | (713) 626-0368 |
| Islamic Propagation Foundation 3411 Fondren Rd, Houston 77063 | (713) 784-0299 |
| J A Elkins Jr Interest 1001 Fannin St 1166, Houston 77002 | (713) 652-2020 |
| Jabboury Foundation For Cancer 12121 Richmond Ave 107, Houston 77082 | (281) 558-1171 |
| Naic Houston Chapter 5604 Telephone Rd, Houston 77087 | (713) 643-7661 |
| Nigerian Foundation Inc 7171 Harwin Dr, Houston 77036 | (713) 910-5873 |