前10大是
Kingston, Smart Modular Technologies, A-Data, Crucial, Apacer, Ramaxel, MA, Kingmax, Transcend and Viking

前3大就是 金士頓 ,Smart Modulat ,威剛
這裡有資料
http://www.kingston.com/company/marketshare.asp


2004
Rank Company Name 2004
Revenue
($millions) 2004
Market
Share
1 Kingston Technology 2,450 27.00%
2 Smart Modular Technologies 740 8.10%
3 A-Data Technology 726 8.00%
4 Crucial Technology 550 6.10%
5 Apacer Technology 412 4.50%
6 Ramaxel Technology 411 4.50%
7 MA Labs 312 3.40%
8 Kingmax Semiconductor 265 2.90%
9 Transcend 248 2.70%
10 Viking Interworks 220 2.40%
11 TwinMOS Technologies 219 2.40%
12 Melco* 215 2.40%
13 Panram International 208 2.30%
14 Wintec Industries 205 2.30%
15 SimpleTech 199 2.20%
16 Netlist 150 1.70%
17 PQI 145 1.60%
18 Swissbit 130 1.40%
19 Dane-Elec 120 1.30%
20 Goldenram 100 1.10%
Others 1,056 11.60%
9,081 100.00%