Sostre & Associates has served over 60 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. Coalitions
11. Coffee
12. Colleges
13. Commercial Finance
14. Commercial Real Estate
15. Commercial & Consumer Sales
16. Communications
17. Consulting Firms
18. County Agencies
19. Dentistry
20. Design & Construction 
21. Energy Efficiency Programs
22. E-commerce
23. Environmental 
24. Equestrian
25. Fire Fighters
26. Golf
27. Health Care Technology and Consulting
28. Hosting Companies
29. Insurance
30. Investment
31. Laboratories
32. Lawyers
33. Marketing Firms
34. Media Networks
35. Medical Clinics
36. On-line Magazines
37. Non-Profit Organizations
38. Pest Control
39. Political Blogs
40. Pool Games
41. Press Release Companies
42. Publishing Companies
43. Radio Stations
44. Real Estate
45. Restaurant
46. Salvage Companies
47. Start-ups Businesses
48. Sake
49. Salons
50. Software Companies
51. Sports
52. Sustainable Enterprise
53. Taxes
54. Television
55. Travel
56. Tutoring
57. Veterinarian Practices
58. Virtual Office Support 
59. Water Districts
60. Water Agencies
61. Water Efficiency Programs
62. Writing Services