NOVA Laboratories

Featured in: Short Circuit (1986)

NOVA Laboratories Incorporated was a robotics laboratory company whose robotics division located in Damon, Washington which was contracted by the military during the Cold War to produce the Strategic Artificially Intelligent Nuclear Transport (S.A.I.N.T. for short) as a way to greatly reduce human casualties in the field.

https://en.wikipedia.org/wiki/Short_Circuit_(1986_film)

https://fictionalcompanies.fandom.com/wiki/NOVA_Laboratories

La Ratatouille

Featured in: Ratatouille (2007)

La Ratatouille is a bistro in Paris, France featured in the Pixar film Ratatouille. The bistro is owned by Alfredo Linguini and Remy and also serves food to rats on the roof of the property.

https://fictionalcompanies.fandom.com/wiki/La_Ratatouille

Jekyll Island

Featured in: Burn Notice (TV series) (2007 to 2013) and many more

Jekyll Island is a brand of beer created by Independent Studio Services as a prop for several TV shows, such as Lost, Dexter and Burn Notice. The brand produces lager, red ale and a root beer. The brewery is supposed to be in the Caribbean, but the real Jekyll Island is one of the Sea Islands off the coast of Georgia, USA.

https://fictionalcompanies.fandom.com/wiki/Jekyll_Island

Home Mart

Featured in: The Equalizer (2014)

Home Mart is a home improvement and construction store featured in the film The Equalizer. The store in the film is where the main protagonist "Bob" works his day job, it sells a variety of home improvement products, construction materials and DIY tools. The store is meant to be similar to real-world chains such as The Home Depot.

https://fictionalcompanies.fandom.com/wiki/Home_Mart

Heisler Beer

Featured in: 2 Broke Girls (TV series) (2011) and many more

Heisler Beer or Heisler Gold Ale is a brand of beer featured in many movies and TV shows due to the use of a prop. The brand is made by prop supplier Independent Studio Services.

https://fictionalcompanies.fandom.com/wiki/Heisler_Beer

Gusteau's

Gusteau's is a restaurant in Paris, France founded by Auguste Gusteau featured in Ratatouille.

There is a restaurant in the city of El Alto in Bolivia that took the name of Gusteau's from the movie. This restaurant has been operating since 2017. This restaurant has a Facebook page.

It is usual to see companies that take ideas from movies since their creators do not register their designs.

https://fictionalcompanies.fandom.com/wiki/Gusteau%27s

Gladrags

Featured in: Harry Potter and the Order of the Phoenix (2007)

Gladrags Wizardwear is a clothing store that was founded in 1750 and run by Gladrags Wizardwear Group Ltd., with branches in London, Paris and Hogsmeade. It is full of quirky merchandise and appears to specialise in strange and unusual socks.

https://harrypotter.fandom.com/wiki/Gladrags_Wizardwear