Alphabetical List of Tunnel Boring Machine Producers. (Main TBM Manufacturers).

• CRCHI (China) 
• CREG (China) China Railway Engineering Equipment Group Co. Ltd. is owned by China Railway Group Limited (company use “CREC” for short of 'China Railway Engineering Corporation').
• E-BERK (Turkey)
• EM Korea (South Korea)
• Herrenknecht (Germany)
• Hitachi Zosen (Japan) -see also OGITEC.
• Hoban (South Korea)
• JIMT - JIM Technology Corporation (Japan) owned by IHI Corporation (Japan).
• Kawasaki (Japan) -see also OGITEC.
• Komatsu (Japan)
• LNSS (China)
• Lovsuns (China/Canada)  ex-Lovat company owned by China's LNSS.
• NHI (China)
• OGITEC - Underground Infrastructure Technologies (Japan) A Hitachi Zosen & Kawasaki JV for TBM business
• Robbins (USA/China)
• SELI  (Italy)
• STEC (China)
• Terratec (Australia) majority stake owned by Japan's JIMT .
• Tianye Tolian (China)

Micro Tunnel Boring Machine (MTBM) Producers

• Akkerman (USA)