INDUSTRIAL MUSIC EXPLAINED
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If you are going to call yourself "Industrial" and stand for the ideologies that the Industrial Movement is trying to convey, then you must understand INDUSTRIAL MUSIC.

First came "Noise".  The Futurists of the early 1900's made auditory art using items from the Industrial period.  Music was made with train whistles and machine sounds.

1975 - Throbbing Gristle started making Noise.  They were angry with their government and how the future was progressing.  They used sounds from the latest technologies: white noise, synthesizers, music concrète, sequencers, etc...  They wanted to spread their message, so they started there own label called Industrial Records.

A few years later, Monte Cazazza, a composer with Industrial Records, is credited as inventing the term "Industrial Music".

So, pretty much, every band released under Industrial Records could be considered INDUSTRIAL:
Cabaret Voltaire
Clock DVA
SPK
Thomas Leer
Robert Rental
Monte Cazazza

The movement then spread around Europe: but it is important to understand that by adding other forms of music or traditional instruments played in traditional manners to INDUSTRIAL music, it then becomes POST-INDUSTRIAL:
DAF - Deutsch Amerikanische Freundschaft
Fad Gadget
Depeche Mode utilized some Industrial sounds
Front 242 - Consistently INDUSTRIAL, however they pursued a more electronic variant of the sound that they called EBM (electronic body movement)

In the 1980s, Front 242 got signed under an American label and the sound came to North America:
Skinny Puppy
Ministry

Then in the late 1980's Trent Rezor (Nine Inch Nails), who was a huge fan of Ministry, put out his first album. In 1989, Nine Inch Nails, brought POST-INDUSTRIAL MUSIC to the mainstream, with a more commercial sound, but the fundamentals of experimental sounds and political anger were still there.  NIN is still putting out post-industrial music, and really brought attention to it and the ideology of the original INDUSTRIAL music.

As people played with the concepts of INDUSTRIAL, new subgenera popped up.  All can fall under the Post-Industrial :

Ambient Industrial:

Death Industrial:

Electro-Industrial:

EBM:

Industrial Hip-Hop:

Industrial Metal:

Industrial Rock: 

Industrial Dance:

Martial Industrial:

Neofolk:

Power Noise:

Witch House: