'flagship industry' is correct and usable in written English.
It is often used to refer to the important industry that an area is known for, or the industry that is the most successful in a country or region. For example: Silicon Valley is known as the flagship industry of the tech sector in the United States.
A volcanic-island nation may well find whistle-blowing to be a compatible flagship industry.
The federal government fashioned suburbia into a flagship industry, hoping to increase demand for jobs, materials and mortgages.
Car manufacturing is a flagship industry in the UK, having staged a remarkable recovery since the 1970s.
Stuart Thomson, an analyst with Resolution Asset Management in Glasgow, said the reduction in Britain was "a measure of how sharply economic conditions have deteriorated since last summer," in a country whose flagship industry — financial services — has fallen back on a major government rescue plan.
Dealing with that disruption is what drives the buzz around the National Retail Federation's (NRF 2019) annual flagship industry event which brings together 36,500 retail professionals and vendors from more than 90 countries.
As an economics major at Stony Brook University in Long Island, Walker — who was at the top of his class — became enamored by New York City's flagship industry: finance.
Census figures show a similar change has unfolded in Birmingham, a once-thriving town of steel mills whose flagship industries in recent decades have been health care and banking.
He said 3i, which released strong first half results yesterday, said the number of deals would decline, hitting "one of Britain's flagship industries and one that has driven growth in the economy in recent years".
Conservative enterprise spokesman Nick Ramsay AM said it was a welcome boost and reaffirmed steelmaking as one of Wales' flagship industries.
(It's worth noting that the startup is able to do this with relative ease because it only needs a single Electronic Money Institution license across the whole of the European Union, underlining the negative impact the U.K. withdrawing from the EU would have on the country's flagship fintech industry).
Assets: Family owns 26% of flagship Reliance Industries, India's most profitable private sector company.
