The phrase "a major creator of" is correct and usable in written English.
It can be used to describe someone or something that significantly contributes to the creation of a particular work, idea, or movement.
Example: "Steve Jobs is often regarded as a major creator of the modern smartphone industry."
Alternatives: "a key contributor to" or "a significant architect of".
Born into a humble tradesman's family, this adaptable genius rose to become an architect of the world's first democracy, a leading light in Enlightenment science, and a major creator of what has come to be known as the American character.
While few think of the company, famous more for its mobile and internet software, as a major creator of PC operating systems, the slimmed-down Chrome OS has powered almost 2m laptops sold to Americans in the first quarter of 2016, IDC told the Verge.
The Russian government is a major creator and facilitator of TPs, which are seen not only as a means of communication among actors of the innovation system but also as experts for designing national industrial policy.
Omron, in particular, could be useful down the road as it is a major creator and distributor of blood pressure monitoring products in the healthcare industry.
Sondheim may be the last major creator of Broadway musicals, period, still actively devoted to the trade.
While fossil-fuel emissions are the major issue, another major creator of emissions is the destruction of forests, particularly in the tropics.
Bankers and regulators were the major creators of the crisis, for their neglect and single-minded self-aggrandizement that often involved bending the rules.
Beijing now aims to turn China—historically an adopter of technologies from elsewhere into a major technology creator.
The president has sold the project as a major job creator for the US – even though the facts don't support all of his claims.
In short, what is now a massive liability could be turned into a major wealth creator.
"It is a major job creator".
