Any suggestions or advice to getting rid of Pharaoh Ants (Suspected) or pest control companies in Houston? Has anyone else dealt with this?

Hi everybody, like the title says I am fighting what I suspect to be pharaoh ants in my house. Since it's Houston I assume the weather's good for them year round. They haven't bitten me yet, but they are all over my room. And it appears to be only in my room. Not in crazy numbers, but enough to be a nuisance. I wouldn't care too much if it wasn't for the fact that I found enough ants in my bed for me to start sleeping in another room. I don't eat or drink in there at all, and there's no food there except for the bait. I thought they were gone for the last few days but suddenly they're back. I'm using numerous baits including Advion (not Terro), never sprayed, and vacuumed the hardwood floors every day. I'm just a bit sick of waiting for them to die off even though I know it takes a while and I don't know if I'm doing it correctly.

I know they're notoriously hard ants to deal with, and I was wondering if anything specific worked for anyone and if they have some extermination companies to recommend. Thank you!