General:
* Helped
* Aided
* Supported
* Facilitated
* Enabled
* Provided assistance
More specific:
* For medical situations: Attended, cared for, nursed
* For financial situations: Funded, subsidized, sponsored
* For legal situations: Represented, advised, defended
* For technical situations: Guided, instructed, coached
The best synonym depends on the specific meaning you want to convey.