'has been mobilizing' is correct and usable in written English.
You can use it to describe the action of someone or something gathering resources or personnel in preparation for a process or activity. For example, "The relief organization has been mobilizing volunteer resources to help those affected by the hurricane."
One group, the Friends of the High Line, has been mobilizing support for the notion for several years now.
After 30 years in government, the Social Democratic party does not accept a change in Austrian democracy and has been mobilizing all its friends around the world.
So much of the grunt work has been handled by Wisconsin-based grassroots groups like Fair Wisconsin, which has been mobilizing voters on campus and online.
Yet in the last decade, Ms. Neuwirth has been mobilizing public pressure against rape, domestic violence and practices like female genital mutilation though letter-writing campaigns and news conferences, techniques she cribbed from her old haunt, Amnesty International.
In recent weeks, 1199 has been shoveling money into the Working Families Party, a labor-backed organization that has been mobilizing support for the Democratic candidate in a crucial State Senate special election in upstate New York on Tuesday.
We start with Hussein Chalayan, a fashion designer who has been mobilizing technology in his work for more than twenty years, not simply for the sake of experimentation or materials innovation, although there is plenty of that, but to make a series of propositions about how the clothed body can be presented in space.
The team has been mobilized on multiple occasions and its approach refined with each experience.
This article provides the first systematic analysis of how Title IX has been mobilized at the postsecondary level.
McDonnell said the Virginia National Guard has been mobilized, and he has authorized local jurisdictions to impose overnight curfews.
"Every available force has been mobilized, and we hope we can bring the situation under control," he said.
Toward this end, the entire population has been mobilized, with virtually every able-bodied citizen expected to cut cane or fill in at work for those who do.
