Build King Holdings Limited, an investment holding company, engages in civil engineering works in the People's Republic of China and Hong Kong. It constructs institutions/schools, and residential and commercial buildings, as well as undertakes fitting out, improvement, and alteration works for buildings. The company also undertakes environmental projects; foundation works; general civil works, including airport, drainage and water, landscaping, site formation, sports ground and park, and road and bridge works; marine works comprising general marine works and submarine pipelines; railway infrastructure and track works; structural steel works; and tunnel works.

In addition, the company provides construction; marine engineering and transportation; sewage treatment; secretarial and nominee; electrical and mechanical engineering; and marine construction contracting services. Further, it supplies steam fuel. Build King Holdings Limited was founded in 1980 and is based in Kwun Tong, Hong Kong.

Build King Holdings Limited is a subsidiary of Top Horizon Holdings Limited.