LexCorp (DC Comics)
Hailed as one of the largest, most diversified multinational corporations in the world, it also happens to be founded by Lex Luthor, who runs it with his characteristic ruthlessness. The list of cities and countries where the corporation has holdings is basically as long as the list of cities and countries on Earth, and the number of companies controlled by LexCorp is almost as long and just as varied. Unfortunately, as of One Year Later, with Lana Lang acting as CEO, the corporation seems to be heading towards bankruptcy. The "No Helping Superman" rule still applies to all employees, however.

Primatech (Heroes)
The Primatech Paper Company of Odessa, Texas is the first Primatech facility the show introduces us to. Of course, they do a lot more than just make paper—They capture and "study" folks with enhanced abilities, but, really, what they do best is operate in a moral gray area. A very dark gray area.

Blue Sun (Firefly and Serenity)
While it's still unclear exactly what the corporation does, it seems pretty implicit that it isn't good. Although most of the Blue Sun products seen on the show seem as innocuous as coffee cans and crackers, River's actions, such as ripping off their labels on food and slashing Jayne with a knife when he wears their logo, suggest that there's something more going on. Some suggest that there's something in the food, but the stronger hypothesis seems to be that Blue Sun is somehow connected to the experiments done on River and is perhaps working with the Alliance.

Merrick Biotech (The Island)
Merrick Biotech's business is keeping clones of their customers around, just in case said customers should need a transplant of some kind. Basically like the ultimate life insurance, right? Except for the fact that it's illegal to allow the clones to be conscious and sentient, which, of course, Merrick Biotech lets happen and lies to their clients about. Therefore, the corporation has an entire population of fully-conscious human beings living totally unaware of the fact that they're basically just an organ farm. And that's just not cool.

Fatboy Industries (The Middleman, TV series)
In the final episode of the series, Wendy Watson is transported into a classic example of a Mirrorverse, where the megacorp of Fatboy Industries is a totalitarian presence, having taken the place of the government. Unfortunately, the morality of Fatboy in Wendy's real world is still unconfirmed, as there's a hint of "more than meets the eye" to both the corporation and its ambiguous founder, Manservant Neville. (This is underscored by the fact that the rest of Mirrorverse turns out to be not so very different from the real world.)

Buy n Large Corporation (WALL•E)
While maybe not inherently evil, the Buy n Large Corporation did govern Earth (perhaps much like the Mirrorverse Fatboy Industries) and did a very poor job of it. Even if rendering the planet uninhabitable wasn't exactly the gameplan, Buy n Large's role in that happening probably makes it a worse corporation than most of the others on this list.

Tyrell Corporation (Blade Runner)
The Tyrell Corporation produces the replicants, lifelike androids designed to the work deemed to dangerous and demeaning for humans, and is named for Dr. Eldon Tyrell, the founder and genius inventor of the replicants. While it's debatable how truly "evil" the Tyrell Corporation is, there is a definite sinister quality to their dealings and it's nigh impossible to deny that they definitely smack of "evil corporation."

Veidt Industries (Watchmen)
A lot of what was said about LexCorp could be repeated here. Once again, the ruthless ambition of the corporation paired with the questionable morality of its founder leaves us wondering how much to trust this (powerful, financially successful) corporation. Meanwhile, the impending release of the film was paired with a Veidt Industries commercial contest, leading to all sorts of fake '80's advertising:

Weyland-Yutani (Alien franchise)
Perhaps the gold standard of evil megacorporations, Weyland-Yutani's main gig is merciless profiteering, no matter what (or who) needs to be sacrificed in the process. (Fun fact: Their logo can be seen on some of the weapons in Firefly and they're said to be a client of Wolfram and Hart in Angel. Maybe this has something to do with the fact that Joss Whedon wrote Alien Resurrection.)

Cyberdyne Systems Corporation (Terminator films)
While the corporation is said to be benign in the first two films, manufacturing parts for bigger companies, they then make the mistake of creating Skynet, a system of artificially intelligent supercomputers that control (among other things) nuclear missiles. This was not a smart move. In fact, it's just un-smart enough to warrant Cyberdyne's inclusion on this list.

Yoyodyne (The Crying of Lot 49 and V. by Thomas Pynchon)
Yoyodyne is a defense contractor that's described in The Crying of Lot 49 as "a giant of the aerospace industry," and a few characters in the novel work for the company. While the morality of Yoyodyne isn't firmly sealed either way, the thread of conspiracy woven throughout the work suggests that it isn't all it seems. (The name "Yoyodyne" is mentioned, as you might remember, in The Adventures of Buckaroo Banzai Across the 8th Dimension.)

Earth Protectors (Up, Up, and Away, 2000 TV movie)
Ostensibly a group designed to teach middle schoolers the importance of environmentalism, Earth Protectors' favorite method of persuasion is brainwashing. And while handing out CD's brainwashing kids into recycling isn't a completely bad thing, brainwashing the parents to rob banks is another thing entirely. (Actually, brainwashing in general? Not recommended.)

Omni Consumer Products (Robocop)
Described as dystopian and inhumane, Omni Consumer Products (OCP) is an example of military capitalism taken to the extreme, until the corporation no longer cares who gets hurt or killed as long as the PR stays good. OCP is depicted as having its fingers in almost every branch of life, as long as there's money to be made from it. One of their strokes of genius comes from running both criminal organizations and a private police force, thereby ensuring a continued demand for both crime and justice.

Soylent Corporation (Soylent Green)
It's 2022 and the world is overpopulated and hungry. Who better to step in than the Soylent Corporation with their rations of tasty wafers known as Soylent Red and Soylent Yellow? Well, okay, they aren't that tasty, but thankfully, Soylent's come out with a new flavor: Soylent Green. Much more delicious. So what's the catch? Well, we all know what Soylent Green is.

GeneCo (Repo! The Genetic Opera)
After an epidemic of organ failures, GeneCo steps in to give transplants to those in need. Benevolent, right? Well, sure, until the boss, Rotti Largo, gets permission to repossess the organs of people who renege on their payments. And once a corporation is taking out your insides, the benevolence is kind of gone.

Note: hit the links to read these suckers for yourselves. The Alex Tse draft was out there at one point (we saved an older copy), so you might be able to find it by sifting the web. Or you could just put David Hayter's draft in a tumbler and give it a couple of shakes, it's roughly the same experience.

Sam Hamm, 1989: Hamm is probably best-known for writing Batman, also in 1989, so it's probably no small wonder that studios suits thought he'd be perfect to adapt Watchmen for Joel Silver at Fox. However, the resulting script is pretty much utter trash.

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• In the opening scene, the Watchmen try to foil a terrorist scheme in the Statue of Liberty, although it results in the death of their teammate Captain Metropolis, and Lady Liberty gets blown up. Cue the government's war on "masks" and superheroes.
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• The opening credits are described as dozens of watches floating around the screen. Lame.
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• Adrian Veidt has developed smokeless cigarettes that are supposedly non-cancerous, while "cleaning your lungs at the same time." A far cry from the glass pipes in the original, plus it turns out Veidt was actually giving them cancer. Evil.
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• Veidt has also created "Nostalgia," which isn't a perfume like in the comics, but rather an "anti-aging" Dick Clark-esque skin cream.
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• The whole premise is built on the fact that the creation of Dr. Manhattan changed the world forever, so Veidt spends his time and millions trying to create a wormhole in time and space so he can kill Jon Osterman before he becomes the good doc. Dr. Manhattan stops him, but realizes he was right and goes back in time to prevent himself from existing, thereby changing the future.
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• This "new world" (actually, our own present-day New York City) shimmers into existence around Dan (Night Owl), Laurie (Silk Spectre), and Rorschach, leaving them confused and wondering what happened. Fin.
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• Lamest moment: EXT. SEAPORT - THAT MOMENT - DUSK
  Ground level. From the midst of the bewildered CROWD we watch as the OWLSHIP and the CTU talk some serious trash:

  NIGHT OWL OVER OWLSHIP LOUDSPEAKER— "or we'll BLOW YOUR ASSES OUT OF THE SKY!"

  CTU LOUDSPEAKER — "UNREGISTERED CRAFT. IDENTIFY YOURSELF."

  OWLSHIP LOUDSPEAKER — "BABY . . . WE'RE A BLAST FROM THE PAST."

• David Hayter, 2003: Hayter was tapped to write the script once the project ended up at Paramount in turnaround from Fox. Hayter, who also wrote X-Men and X-Men 2 (and plays the voice of Snake in the Metal Gear Solid video games) stayed much closer to the source material than Hamm did, but he took some liberties as well.

• Dr. Manhattan is much more godlike in this script, creating a "magic mirror" for Laurie that can allow her to see any point in her past. This only seems to serve as a plot device so that we can see her fighting with The Comedian in the past.
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• Dr. M also uses his abilities to give Laurie one of the lamest superpowers since Jubilee: she can now shoot a blue ball of energy from her fingers, slingshot-style.
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• She uses this power to try and stop Adrian, but he catches the ball and pummels her. Not quite as dramatic as catching a bullet, is it?
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• Instead of a vat-grown alien-tentacled telepath, Veidt fires a concentrated beam of radiation at orbital mirrors which reflect into New York City, killing 20 million people.
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• Night Owl and Veidt square off in the end, and although Veidt beats the crap out of him, Night Owl still wins by tricking Veidt with an Owl-o-rang and killing him. Yes, really.
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• Lamest moment: ADRIAN — "Why an Owl? I mean, assuming your intention is to intimidate the criminal element... What's so frightening about an owl?"

  DAN — "I don't know, really. I guess it's because... No matter how hard you listen, you never hear them coming."

  Dan DUCKS. Having circled the room, the OWL-WING ZOOMS OUT OF THE DARKNESS, OWL-FACE SCREECHING INTO FRAME —

  — And STRIKES ADIAN THE IN THE CHEST, KNOCK HIM OFF HIS FEET. Adrian SLAMS to the ground, THE BOOMERANG'S LEFT WIND IMBEDDED IN HIS SOLAR PLEXUS. He wheezes blood.

• Alex Tse, 2006: Novice writer Tse was hired to come in and work on David Hayter's draft, which remains mostly intact. He changes a few things, but it still seems like it's mostly Hayter's script.

• Dr. Manhattan is seen as the "peacekeeper of the world," keeping all of the world's government in check, for better or for worse.
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• Rorschach busts in on an army officer with a hooker, beats the crap out of him (and her) and takes his uniform. Later, he disguises himself as the officer, so he can enter Dr. Manhattan's army lab and tell him about The Comedian's death.
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• Veidt impersonates Dr. Manhattan, and fires beams of concentrated... er, "big blue energy clouds" into key cities around the globe, killing three million people.
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• Dan and Veidt square off again, but this time Dan crashes the Owl-Ship via remote control into Veidt, wounding him badly. You think he might survive, but as Laurie flies the ship out, she sets his body on fire. Whoops.
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• Lamest moment: ADRIAN — "I have to say, I've always thought your choice of an owl was quite juvenile."

  DAN — "Really? I've always liked owls..."

  Adrian sees that Dan has pulled one last item from his belt. Adrian STEPS on Dan's WRIST, bones crunching. Dan's hand falls OPEN, revealing the OWL-SHIP REMOTE.

  DAN (cont'd) — "... because you can never hear them coming."

  BEHIND ADRIAN: FLOODLIGHTS BLAZE, targeting Adrian as the OWL-SHIP CRASHES THROUGH THE WINDOW and into Adrian and Dan.

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At any rate, we'll be watching these Watchmen.