[1] Equivalent Step Index

[2] Engineering & Scientific Interpreter

[3] Equivalent Sphere Illumination (->"IEEE Standard Dictionary")

[4] European Software Institute, Parque Technologico de Zamudio (Spanien)

[5] Enhanced Serial Interface (specification, Hayes)

[6] Electronic Share Information

[7] Electrostatic Interference

[8] Electrical System Integration (->"NASA Acronym List")