Vector Capital, a US-based private equity investment firm founded in 1997
Vector Informatik, a software tool and components provider for development of embedded electronics
Vector Engineering, a company that specializes in the application of civil engineering, hydrogeology, geology, and geotechnical and geological engineering
Vector Graphic, an early manufacturer of 8-bit microcomputers
Vector Group, a publicly traded holding company run by Bennett S. LeBow
Vector Limited, a New Zealand gas and electricity supplier
Vector Marketing, marketing arm of Alcas Corporation
Vector Motors, an automobile manufacturer
Vector M12, a vehicle designed by Vector Motors based on the Lamborghini Diablo
Vector W2, a concept car created by Vector Motors
Vector W8, a production car produced by Vector Motors
Vector WX-3, a prototype automobile created by Vector Motors in 1992
Vector SRV8, a prototype automobile created by Vector Motors in 1999
Vector (company), a telecommunications company based in Poland
Vectors, a song by the band Area 11;
Vector (artiste), a Nigerian rap artist
Vector (band), a 1980s New Wave rock band
Vector (game), a 1970 board game
Vector (magazine), the critical journal of the British Science Fiction Association
Vector (novel), a 1999 novel by Robin Cook
Vector 13, a comic strip in the 2000 AD anthology
Vector Lovers, moniker used by British electronic music producer Martin Wheeler
Vector Prime, a Star Wars novel written by R. A. Salvatore
Vectorman, a 1995 game for Sega Genesis platform
Aerodyne Systems Vector, ultralight aircraft
Lift vector, an upwards force acting on aircraft
Thrust vectoring, the ability of an aircraft or other vehicle to direct the thrust from its main engine(s)
Hall Vector 1, glider
Light verb, or vector, in grammar, a verb participating in complex predication
Parker Vector, a family of pens
Pinzgauer Vector, military patrol vehicle
TDI Vector, a prototype .45 ACP submachine gun developed by Transformational Defense Industries
The Vector, the student-run newspaper of the New Jersey Institute of Technology
Interval vector, a term in musical set theory describing the interval content of a given set
Vector (food), a cereal manufactured by Kellogg's
Vector Arena, an arena for sports and cultural events in Auckland, New Zealand
Vector map, a vector-based collection of geographic information system data about Earth at various levels of detail
Vectors Journal of Culture and Technology in a Dynamic Vernacular, an online journal