Sostre & Associates has served over 50 different industries. They include the following:

1. AB811 Program
2. Advertising
3. Affiliate Marketing
4. Apparel
5. AV Products & Services
6. Beauty
7. Blogs
8. Call Centers
9. Christian Academies
10. Coffee
11. Colleges
12. Commercial Finance
13. Commercial Real Estate
14. Commercial & Consumer Sales
15. Communications
16. Consulting Firms
17. County Agencies
18. Dentistry
19. Design & Construction 
20. E-commerce
21. Environmental 
22. Equestrian
23. Golf
24. Health Care Technology and Consulting
25. Hosting Companies
26. Insurance
27. Investment
28. Laboratories
29. Lawyers
30. Marketing Firms
31. Media Networks
32. Medical Clinics
33. On-line Magazines
34. Non-Profit Organizations
35. Pest Control
36. Political Blogs
37. Pool Games
38. Press Release Companies
39. Publishing Companies
40. Radio Stations
41. Real Estate
42. Restaurant
43. Salvage Companies
44. Start-ups Businesses
45. Sake
46. Salons
47. Software Companies
48. Sports
49. Sustainable Enterprise
50. Taxes
51. Television
52. Travel
53. Tutoring
54. Veterinarian Practices
55. Virtual Office Support 
56. Water Districts
57. Water Agencies
58. Writing Services