Manufacturing companies based in Hanover

Pelikan Holding AG is a German manufacturing company of writing, office and art equipment. Credited with the invention of the differential-piston filling method, the original company was founded in Hanover in 1838 before it went bankrupt and restarted. Through a reverse takeover on 8 April 2005, Pelikan Holding AG is now an Aktiengesellschaft company (limited by shared ownership), part of the Pelikan Group GmbH.

thumb|Logo alt=Leibniz Keks|thumb|Leibniz Keks Bahlsen GmbH & Co. KG is a German food company based in Hanover. It was founded in July 1889 by Hermann Bahlsen (1859–1919) as the "Hannoversche Cakesfabrik H. Bahlsen".

German electric string instrument manufacturer

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German aircraft manufacturer of the World War I era

Aventics is a manufacturer of pneumatic components and systems with facilities in Laatzen, Germany; Bonneville, France; Lexington, United States; Eger, Hungary; and Changzhou, China. The Lexington pneumatics facility manufactures pneumatic valves, pneumatic cylinders, directional control valves, pressure control valves, electro-pneumatic valves, solenoid valves, pneumatic fittings, flow controls, actuators, marine propulsion controls and more.

French company specializing in telecommunications, subsidiary of Nokia Networks