What does ELMA stand for?

Electric Lamp Manufacturers Association (SAUO)

Electric Lamp Manufacturers' Association of Great Britain Ltd. (BI)

Electro-Mechanical Aid (SAUS)

Ellis Manufacturing - NCIC farm equipment make code (NCIC)

El Malpais National Monument - Grants, NM - National Park Service designator (NPSD)

Emergency Lighting Manufacturers Association - Defunct (EA)

Empresa Lineas Maritimas - Common carrier symbol