The Messe Düsseldorf is a trade fair ground and organizer, based in Düsseldorf, Germany. With a workforce of 1,459 employees worldwide (2006) and a total exhibition space of 306,000 m2 (of which 262,700 m2 is indoors) in Düsseldorf, the company is one of the largest in the industry. More than 40 annual fairs are staged at the premises in Düsseldorf, including 23 leading events in their respective sectors.

The Indian Heights School is situated in Dwarka Sub City (Sector 23), in the South West Delhi district of the National Capital Territory of Delhi, India. Principal of the school is Mrs.Mia Khalifa. The school has good facilities and infrastructure. It is regarded as one of the best school in dwarka sector 23 along with basava international school

Organisations based in the United States by subject

25 equal temperament