In health and medicine:

• Emergency medical technician, a healthcare worker

In music:

• E.M.T., a former experimental music group

In organizations:

• Élan Motorsport Technologies, a race car manufacturing consortium
• Elektro-Mess-Technik, a German manufacturer of turntables and audio equipment
• EMT (company), an Estonian mobile operator
• EMT (Madrid) (Empresa Municipal de Transportes de Madrid, S.A.), the Madrid transportation network

In science and technology:

• Efficient market theory, a theory about financial markets
• Epithelial-mesenchymal transition, a mechanism in developmental biology
• Electrical metallic tubing, a type of electrical conduit
• Emergency & military tourniquet, a modern, specialized tourniquet for emergency and military application

In transportation:

• El Monte Airport, an American airport which has IATA airport code EMT
• East Midlands Trains, an English train operating company

In other:

• Email Money Transfer, a funds transfer service between Canadian financial institutions