Manganese Bronze Holdings PLC is an engineering company based in Coventry, England. The company manufactures a range of automotive parts, but is most famous for manufacturing London Black Taxis.

Manganese Bronze Holdings is split into four divisions:

• London Taxis International which manufactures London Black Taxis for distribution throughout the United Kingdom and worldwide;
• Zingo which produces intelligent taxi location systems;
• Mann & Overton which provides maintenance services for taxis; and
• London Taxi Finance which provides finance deals for the purchase of taxis.

Maganese Bronze first manufactured taxis in 1948, and has produced over 100,000 London Black Taxis in its Coventry plant.