19. Indonesia Polling Stations (IPS)
20. Surabaya Survey Center (SSC)
21. Lembaga Survei Indonesia (LSI)
22. Forum Rektor PTMA
23. Indodata
24. Surabaya Research Syndicate (SRS)
25. Fixpoll Media Polling Indonesia
26. Indopol Survei & Consulting
27. Polsentrum Data Indonesia