Clean Tuesday Hong Kong in the non profit local chapter of Clean Tuesday international which organizes networking events to join together members of the cleantech/greentech communities.
Clean Tuesday Hong Kong是國際Clean Tuesday的支部，旨於組織活動，聯繫各個潔淨技術和綠色技術的團體。
Easy Home Clean Services Company has been providing professional cleaning service in Hong Kong since 2003.
En-trak makes energy management and lighting control simple for buildings of any types including schools, retail, and offices.
Motorwave is a cleantech energy company created and developed in Hong Kong with industrial and commercial applications. Their first project was MotorWave, which harnesses the power of sea wave motion in order to make electricity. They subsequently developed wind, solar and gym equipment powered energy technology.