BangkokTaxi24, GB Limousine, Glassflower, Kanokwan Travel, Kim Transfers Thailand, MCC VAN, N and T Travel, NNS Luxury Limousine, Thailand Limo by Datum
While you may be unsure as to how to find your driver or private transfer company, it turns out it was ok. Just keep walking once out of baggage claim and you'll find a sign with your name on it. I had to walk a good bit once out of baggage claim and was getting nervous I made mistake but there are alot of transfer companies and alot of signs.
Someone checks you in and had to wait maybe 10mins before being guided out to car.
I had female driver in an EV who was excellent at navigating out of the city and driving 3hrs north.
She didn't have much English which made the trip very quite. We stopped about halfway at gas station for snacks and a break to walk around.
Was dropped right to hotel door. Great service.
I did get asked for payment by driver at the end of trip but had already paid online. This was the only mistake which was a little shocking but she called office and misunderstanding was cleared up. Hence I dropped 1star.