Currently most title/escrow companies are local brick and mortar shops, largely due to slight regional differences in how the process works and who pays what (these differences are mostly historical artifacts that we don't want to mess with) [0].
At Open Listings [1] we're building the slickest real estate offer/transaction platform in the industry but it involves a fair amount of offline coordination with other agents, inspectors, banks, and title/escrow companies. Essentially, we're building an API on top of a lot of human interactions and an interface for our clients and agents to drive that API. We'd love to be able to plug into a preferred escrow service to do the title transfer and replace one slow, expensive interaction with an API call.
[0]: http://www.firstam.com/assets/title/ca/respa-reform-tools/wh... [1]: https://www.openlistings.co/