The phrase "a vast array of institutions" is correct and usable in written English.
It can be used when describing a large and diverse collection of organizations or establishments, often in a specific context such as education, finance, or healthcare.
Example: "The conference brought together a vast array of institutions from around the world to discuss global challenges."
Alternatives: "a wide range of institutions" or "a large variety of institutions".
"We're dealing with a multiple of countries in trouble at the same time, where the investors and creditors are not just a limited number of banks, but a vast array of individuals and institutions.
It has a vast array of cultural and scientific institutions and opportunities.
More than 870 priests, 3,700 nuns and 1,000 nonclerical employees keep the Roman Catholic Church's vast array of institutions and services functioning while tending to the spiritual needs of their followers.
Rather than face a lawsuit, the institutions agreed to a vast array of conditions, including a promise to provide interpreters more or less on demand for patients who request them.
Artists in these cities are supported by a vibrant cultural infrastructure, but it takes different forms; some are underpinned by a vast array of organizations ��� from non-profits to state-backed institutions, private foundations and artist-led initiatives — as well as by individuals, including influential dealers and curators.
Atlantic Avenue is still home to a vast array of Middle Eastern restaurants and food shops, some of them institutions like the 72-year-old Damascus Bread and Pastry and Sahadi's Middle Eastern grocer.
Data are available from numerous research institutions across the United States covering a vast array of subjects and base layer information.
Influencing the many national, regional and multilateral institutions that set or approve a vast array of standards e.g., product, services, process and platform standards, is a necessary first step.
Over a period of more than four years, the hacker group infiltrated around 43,000 computers worldwide, infecting a vast array of targets ranging from individuals to corporations as well as government institutions.
There are startups like Money Intel, and while a vast array of small businesses might not be especially low-hanging fruit for major financial institutions, there seems to be plenty of opportunity for a product to hit that sweet spot.
