The phrase "across a broad base" is correct and usable in written English.
It can be used to describe a situation, concept, or support that is widespread or encompasses a wide range of elements or factors.
Example: "The new policy was developed with input from stakeholders across a broad base of the community."
Alternatives: "over a wide range" or "throughout a wide spectrum".
Those that are largest, with the greatest ability to spread costs across a broad base, survive.
A spokesman for BIS insisted that the government is committed to "the financial stability of the research base and excellence across a broad base of research".
Technology creates efficiencies that facilitate fundraising and volunteering across a broad base of budding philanthropists.
Beyond mixing their ownership, the companies said they would work together "across a broad base of products and services".
Forrester Consulting interviewed 150 marketing leaders across a broad base of industries, with the requirement of at least 5,000 active leads in their B2B databases.
In a short statement announcing the news, Baidu said that Xiaodu is now a subsidiary of Rajax and that Baidu and Rajax had inked "a business cooperation across a broad base of products and services following completion of the merger".
The discovery prompted Corning to increase mobility rates between divisions while preserving high rates within divisions, in order to develop more leaders across the corporation with a broad base of experience.
The Green Movement, decades later, also failed to capture a broad base across the country beyond Tehran.
The presidential campaign was not gaining traction in the national polls, and several of Obama's associates openly fretted that the emphasis on winning Iowa and the other early states had come at the expense of building a broad base of support across the map.
"The Welsh Conservative Party enjoys a broad base of support across Wales and is represented at every level of government.
Bryk and Schneider show how a broad base of trust across a school community can provide a critical resource as education professional and parents embark on major school reforms.
