Heritage, Bet105, and surely dozens of other books pay this 3rd party named LinePros to run their live betting offerings. I must say, this company is extremely unreliable. They take lines off the board for excessive amounts of time. For instance, they didn't have lines up during the entirety of the Raiders 2nd drive tonight. Meanwhile, I flip over to bet365 just to make sure there wasn't some industry-wide oddity going on, but sure enough they had lines and didn't take them down for even 1 second during the drive.
LinePros, if you're reading this, get bent you jagaloons.
LinePros, if you're reading this, get bent you jagaloons.