Tian Hock Keng (天福宫), Telok Ayer St [Hokkien]
Wak Hai Cheng Beo (粤海清庙 or Yue Hai Qing Miao), Philip St [Teochew]
天后宫 (Tian Hou Gong), Blk 95 Henderson Rd
廣應宫 (Guang Ying Gong), Bt Purmei
云峰天后庙 (Yun Feng Tian Hou Miao), Potong Pasir Combined Temple, Ang Mo Kio St 44 [Cantonese]
金合发联谊社 (Jin He Fa Lian Yi She), Upper Hokkien St
圣莲宫 (Sheng Lian Gong), Telok Blangah Cres
Ming Hun Tua, Telok Blangah Cres [Hokkien]
Sai Ho Piat Su (后港西河别墅 or Hougang Xi He Bie Shu) @ 后港斗母宫 (Hougang Dou Mu Gong), Upper Serangoon Rd [Teochew] (their celebration was on 10 Apr)
海南会官 (Hainan Hui Guan), Seah St [Hainanese]
Ban Kang Tian Hou Gong, Sengkang [Hokkien?]
Henderson Rd [Hokkien]
Sin Ming Tian Hou Temple [Cantonese] (may have yew keng to mother temple in AMK Ave 10)
慈悲妈祖宫 (Ci Bei Ma Zu Gong), Blk 116 Pending Rd
Sun Teck Keng (Shun De Gong), Geylang Lor 29
Chi Bei Ma Zuo Keng, Bt Panjang
Seng Lian Keng (Sheng Lian Gong), Depot Rd

Temples with Mazu but not known whether they are celebrating:
天后庙 (Tian Hou Miao), Geylang Bahru
Sembawang Tian Hou Gong, 24 Admiralty St
善兴坛 (Shan Xing Tan), 蔡厝港联合殿 (Chua Chu Kang Combined Temple)
三巴旺天后宫 (San Ba Wang Tian Hou Gong), 三巴旺联合宫 (Sembawang Combined Temple)
金榜山亭天后宫 (Jin Bang Shan Ting Tian Hou Gong), 汤申庙 (Thomson Temple)
钟头宫 (Zhong Tou Gong), 天德圣庙 (Tian De Sheng Miao)
吉山庙 (Ji Shan Miao), 紫云开吉宫 (Zi Yun Kai Ji Gong)