So how evil were they?
Most of the uniforms were made in what can be considered the forerunner to the modern day sweatshop, at times by Prisoners of War. Also, it's impossible to underestimate the importance of those uniforms to the whole Nazi image. To this day, they are essentially synonymous with "evil." The influence of the design has been widespread, especially in film where their influence has been noted in the outfits of the Imperial officers from Star Wars.

But, unlike the products of some other companies on this list, the uniforms weren't directly responsible for killing people. In fact, since they actually made the wearers uncomfortable and smelly for a quarter of the year, relative to the rest of the companies on this list Hugo Boss probably deserves a medal of some sort.

So how evil were they?
If anything, the Beetle is perhaps one of the most misconstrued cars in history. People look at its rounded shape and anthropomorphic face and instantly think of love, peace and smoking massive quantities of pot. But, it was really designed as a tool for everyday life in the always-cheerful Third Reich. Give credit to Porsche for designing a car so impossibly cute that we forget it was built by diseased slaves in some dark, dank factory in Stuttgart, Germany.

If you squint, Herbie the Love Bug is sporting a Hitler mustache.

And, this is the point where things take a horrific turn. To get through this, we're going to try to offset the horror with some kittens playing on computers. We'll just look at them while we type.

Back in those days, the only way to keep track of huge databases was with an extremely complicated system involving punch cards, and IBM was the best at constructing and maintaining those databases. IBM's punch card databases could keep track of anything: financial ledgers, medical records, Jews.

OK, give us a moment here ...

OK.

According to a book a guy wrote about it, as soon as the Nazis invaded a country, they would overhaul the census system using IBM punch cards. Then they'd track down every Jew, Gypsy and any other non-Aryan until they were all rounded up onto cattle carts. And, next stop wasn't Space Mountain.

So how evil were they?
The unabashedly anti-corporate documentary The Corporation shows actual footage of IBM punch cards used in prison camps, about two minutes into this video:

That tracked people based on their religion, their location and even how they'd be executed. For instance, Prisoner Code 8 was Jew, Code 11 was Gypsy. Camp Code 001 was Auschwitz; Code 002 was Buchenwald. Status Code 5 was execution by order, and Code 6 was gas chamber. Holy s**t, people. Seriously, IBM. What the f**k?

Hold on, we're going to watch this video of a kitten fighting a laptop seven or eight times.

These days, IBM claims they were a victim of circumstance. They had a subsidiary in Germany long before Hitler took over. They say the company just fell under Nazi control, like every other company over there at the time. The records show that's not completely true, though. IBM sent internal memos in their New York offices acknowledging that their machines were making the Nazis more efficient, and they made no efforts to end the relationship with the German branch.

IBM has never made an apology or admitted any need to apologize at all, hoping instead that with time everyone would just forget about it. And, we pretty much have, because, hey, they make such awesome computers!

After he oversaw the first use of chemicals in warfare, his wife killed herself in their garden with his service revolver in protest. Once Hitler took over, Haber decided to renounce Judaism to fit in, only to be told that he was still Jewish according to the Nazi rule book because his mother was Jewish. He died of a heart attack while fleeing the country he spent his life serving. The chemical he originally invented to kill insects was used to kill a number of his relatives in the Concentration Camps.

You know what? We think we're going to just pack up and sail off to a deserted island somewhere. We'll just walk away from this whole humanity thing. Us and our kittens.

So how evil were they?
On one hand, the company that actually manufactured the gas was just partially owned by IG Farben, and Bayer was just one part of IG Farben. It's like the way we don't think of General Electric as a military contractor, because they make so many other things.

Bayer, though, has continued some of its old douchebaggery into the modern era. First off, Aspirin was invented by a Jewish man, Arthur Eichengrun, whose name Bayer still refuses to acknowledge. To this day, the "official" history of the company denies Eichengrun's involvement in the invention of aspirin, and states that an Aryan invented the drug, because as we all know, Aryans are better at everything.

One such Bayer-employed Aryan was a nice, thoughtful fellow by the name of Josef Mengele, who Bayer sponsored to seek out medical discoveries in the important field of torturing people to death.

We have some hard questions for Bayer. Actually, just one question, which is, "What the f**k, Bayer? Dude."

Siemens AG is the massive global conglomerate that makes everything from circuits to wind turbines to Maglev trains. It has almost half a million employees worldwide and is listed on every stock exchange imaginable. The company had its roots back in the 19th century when famed scientist Werner von Siemens got tired of discovering stuff and decided to make some money instead.

Of course, he was dead long before the 1940s, so Mr. Werner von Siemens is guilty of nothing more than not entering the world of porn with that gift of a name. The company he gave that name to may as well have it's corporate headquarters inside a dormant volcano, because it probably couldn't have been more evil if it were trying its hardest.

Job with Nazis:
Siemens was the major player in the Nazification of Germany. The company, run by Werner's son, Carl, and then his grandson, Hermann, struggled in the wake of World War I and the Great Depression and had to earn some dough fast. When Hitler rose to power in the 1930s, it was the signal for the Siemens executives to start building factories, and nowhere was the real estate better than near the homey neighborhoods of Auschwitz and Buchenwald.

Hundreds of thousands of slave workers were employed to build all sorts of goodies for the German military to use on both the western and the eastern fronts. Though they weren't the only company at the time supplying the German war effort, they were certainly the most prolific. Siemens was in charge of Germany's rail infrastructure, communications, power generation ... the list goes on. If the Reichstag was the brain behind the war, Siemens was definitely the right hand that stroked Hitler to ecstatic glory.

So how evil were they?
We'll let you be the judge. At the height of the Nazi terror during the 1940s, it was not atypical for a slave worker to build electrical switches for Siemens in the morning and be snuffed out in a Siemens-made gas chamber in the afternoon.

Hold on. We need a moment with the kitten.

Why else would the Allies destroy four-fifths of the company's factories during the war? Because they were bored? f**k no. It's because they intended to blitz the marque brand of Nazi Germany back into hell where it belonged.

These days Siemens is being forced to pay due to a series of lawsuits from survivors. So, at least they own up to it, right?

Well, a few years ago, in an act of insensitive fuckery so colossal it could blot out the sun, Siemens tried to trademark the name "Zyklon" with the intent of marketing a series of products under the name. Including gas ovens.

f**k it. If you need us, we'll be on the island.

Find out about the Nazi invention that could fire tornadoes into the freaking sky only in You Might Be a Zombie and Other Bad News, the New York Times Best Selling book by Cracked.com.