"growing foothold" is correct and usable in written English.
It is an idiomatic expression meaning to gradually establish a more secure presence or position. Example: The company gradually gained a growing foothold in the technology industry by introducing innovative products.
But while the Cuban and Venezuelan efforts have largely prioritized developing-world solidarity with some African nations, Brazil's growing foothold in Africa is more complex, involving ambitions to forge Brazil into a diplomatic and economic powerhouse.
Meanwhile the bank's growing foothold in China will make it easier for Bank of East Asia to service existing customers when they do business there.
There is a hope that this renaissance of black cinema leads to a permanent and growing foothold in the marketplace – and a very firm resolve to ensure that black storytelling on the big screen prevails.
With the conflict in neighboring Colombia worsening and the American commitment there growing, a new foothold so close to the theater of action will "improve our response time and enhance our ability to detect and monitor flows of cocaine and heroin," Gen. Barry R. McCaffrey, the White House drug czar, said in an interview earlier this year.
But their original $190 million investment leveraged over $850 million in private capital, and helped companies grow, gain a foothold, and create jobs to support the economy.
ASUS and other brands, and several OEMs are developing Chromebooks, in order to gain a foothold in this growing market.
The larger question is whether a works council can satisfy employees and politicians in Tennessee — and give the U.A.W. a foothold in the growing Southern auto industry.
Qualcomm, which makes chips for cellphones, hopes to gain a foothold in the growing market for tablet computers with the acquisition.
In the years since, about 2.3 million square feet of warehouse space has been developed, giving the ranch a foothold in a growing industry.
For Dropbox, one of the darlings of Silicon Valley with a reported $4 billion valuation from venture capitalists, its new service is a bid to buy paying customers and solidify its foothold in the growing file-sharing business.
Canon, a camera and printer maker considered a leader in profitability in corporate Japan with its aggressive cost-cutting, is angling for a foothold in the growing market for mirrorless cameras with interchangeable lenses, where it faces stiff competition from Sony, Olympus and Nikon.
