Ten provinces with most number of establishments with one employee and over: 2003 - 2005
  2003  
Rank Provinces Establishment
1 Bangkok 164,173
2 Samut Prakan 8,336
3 Nakhon Ratchasima 7,862
4 Chiang Mai 7,347
5 Songkhla 6,991
6 Khon Kaen 6,894
7 Chon Buri 6,791
8 Ubon Ratchathani 6,487
9 Surat Thani 6,283
10 Nakhon Pathom 6,128
  Whole Kingdom 383,762
  2004  
Rank Provinces Establishment
1 Bangkok 177,610
2 Samut Prakan 9,748
3 Chon Buri 8,693
4 Songkhla 8,666
5 Nakhon Ratchasima 8,394
6 Chiang Mai 8,071
7 Khon Kaen 7,622
8 Nonthaburi 6,761
9 Samut Sakhon 6,661
10 Surat Thani 6,616
  Whole Kingdom 410,942
  2005  
Rank Provinces Establishment
1 Bangkok 166,195
2 Samut Prakan 9,792
3 Songkhla 8,810
4 Chon Buri 8,770
5 Nakhon Ratchasima 8,279
6 Khon Kaen 5,936
7 Chiang Mai 5,611
8 Rayong 5,563
9 Nonthaburi 5,536
10 Nakhon Pathom 5,442
  Whole Kingdom 377,753
Statistical Forecasting Bureau,  National Statistical Office