There are lot of USA universities which accept students without GRE score. They don't require GRE score for admissions.

Usually all top universities require GRE score(with some exceptions) for Masters and PhD admissions. Too low ranked universities usually don't ask for TOEFL and GRE scores.
Some program in a university may admit you without GRE score where as some other programs in the same university require GRE score for the admission.

Note: Students applying for Engineering Major admissions are advised to take GRE, if you are planning for MS in US or PhD, to improve the chances of admission.

List of Universities by GRE Score Requirements>>>

List of US Universities without GRE score Requirement

1. University of Dayton - GRE is optional for all engineering programs
http://gradadmission.udayton.edu/app...adm_scores.asp

2. Stevens Institute of Technology
http://www.stevens.edu/gradadmission...ams/index.html

3. New Mexico state University for Masters in Computer Science
http://www.gradschool.nmsu.edu/GraduateDegrees.html

4. University of Nebraska-Lincoln
http://engineering.unl.edu/academicu...uate-FAQ.shtml

5. University of Pittsburg - GRE score not required for Materials Science and Engineering
http://www.engr.pitt.edu/admissions/graduate/gre.html

6. University of Northern Virginia in Manassas, VA
http://www.unva.edu/admin_req2.htm

7. Purdue University West Lafayette, Indiana
http://www.cs.purdue.edu/academic_pr...rements.sxhtml

8. MIT-massachusetts institute of technology - Electrical Engineering and computer science do not require GRE scores
http://www.eecs.mit.edu/grad/faqs.html#1

9. California State University Sacramento - don't require GRE for Civil Engineering
http://www.csus.edu/gradstudies/Faqa.htm#GRE_GMAT_MAT

10. University of Bridgeport, Connecticut - Master's of Science in Computer Science (M.S.), Computer Engineering (M.S.), Electrical Engineering (M.S.), Mechanical Engineering (M.S.), and Technology Management (M.S.) - GRE is recommended but not required
http://www.bridgeport.edu/pages/3664.asp

11. Oklahoma City University, Oklahoma - OCU does not require the GRE or GMAT examinations for entrance into the graduate programs, except for the MBA and MSA programs, which require the GMAT
http://www.okcu.edu/admissions/iso/questions.aspx

12. Farleigh Dickinson University(NJ)

13. Monmouth University(NJ)

14. Montclair State University(NJ)

15. The Richard Stockton College of NJ(NJ)

16. Rowan University(NJ)

17. Wichita State University

18. Kansas State University

19. Virginia State University

20. Florida International University for MS,PhD in Computer Science

21. Villanova University for MS in EE

22. University of Idaho for MS in Environmental science and Computer Engineering

23. West Texas A&M University

24. University of Florida for Arts Education

25. George Mason Univ (for Masters in Health Information Systems)
https://www2.gmu.edu/

26. Rivier University

27. Colorado Technical University

28. California State University, Sacremento

MS without GRE

University Admissions without GRE is a good thing to get into few top universities like MIT(certain programs). But usually low ranked schools will have No GRE offer .
It is strongly recommended that you take GRE exam if you are planning to study in USA. In case if you want to transfer university after going to USA, you gre score might help you.