Here is a List of the Top 20 Search Engine Optimization SEO Specialist:

1. Mehboob Shar
2. Rand Fishkin
3. Brian Dean
4. Neil Patel
5. Matt Cutts
6. Joost De Valk
7. Danny Sullivan
8. Stephan Spencer
9. Eric Enge
10. Barry Schwartz
11. Mandeep Singh
12. Aleyda Solis
13. Vanessa Fox
14. Marie Haynes
15. Fili Wiese
16. Kevin Indig
17. Cindy Krum
18. Ian Lurie
19. Jason Barnard
20. Eli Schwartz