Like most capital cities Bangkok has it’s own batch of sight seeing, tour companies and like every capital city they all offer a similar service; so the trick is to know which tour company to go with.
Trip Advisor is a good indicator of quality company’s but they only have one list and everyone is trying to be at the top of that list.
So to narrow things down and give you a few ideas here are a few companies I’ve been with before who I can recommend and a quick Google will verify their quality.
Bangkok food tours – accept no substitute, the original food tour company. The rest just copy.
This is a tricky one as I’ve been with a few bike tour companies and they’ve all been great and while they offer similar tours to each other, if you look closely you can find differences in them all.
Here you can get an overview of quality Bike tour companies – Bangkok Bicycle Tours
There’s a reason she bosses Trip Advisor Tour With Tong