The phrase "already founded" is correct and usable in written English.
It can be used to indicate that something has been established or created prior to the current time or context.
Example: "The organization was already founded before the new regulations were introduced."
Alternatives: "previously established" or "already created".
Some have already founded companies; nearly all have toyed with the idea.
She has already founded a campaigning environmental group and spoken to the House of Lords.
By then, he had already founded a company, ILIXCO, to manufacture the displays (1970).
With other students, she has already founded a Web start-up, the Closer Grocer, which delivers groceries to dorms.
Slim had already founded several charitable organizations, although he admitted to me, "I don't believe in charities too much..
He had already founded a journal called McSweeney's and a Web site (www.mcsweeneys.net), publishing experimental fiction and satire.
Because for the Google IPO to achieve its full potential – and I think that could be as great as the Netscape IPO of a decade ago – it must occur against a backdrop of a new generation of chips, a venture capital industry already placing bets on hundreds of new start-ups and the vanguard of a new generation of entrepreneurs already founding exciting new companies.
Public initiatives against "monster masts" have already been founded and have received broad media coverage.
Some private agricultural schools had already been founded in the East, and by 1916 agriculture was being taught in more than 3,000 high schools.
A group called the Minutemen had already been founded, insisting it was their patriotic duty to protect the border themselves in the absence of state intervention.
A player may only purchase shares of stock in chains that have already been founded.
