[smt88]

You aren't heavily underpaid. You're criminally underpaid. Glassdoor will be helpful in looking up just how underpaid you are (check out competing agencies for a more apples-to-apples picture).

To give you an idea of how badly that agency is exploiting you, where I live (Atlanta), the cost of living is roughly 50% of the Bay Area. Your adjusted salary for our city is $25k, which is arguably not enough to live on.

On that note, if you don't get a raise, you should see how you feel about relocating to a place where the ratio of pay/cost-of-living is better. Few places in the country have a worse ratio than the Bay Area.