First off, there are some very easy to understand differences between local courier services within Singapore and international courier services simply by looking at their names alone. However, in reality, there are a lot of other things that you might not notice.
For instance, just because international companies sound larger does not guarantee that they’re the best providers locally within Singapore. This is because some of these international freight companies like Fedex or DHL might outsource some of its deliveries to a local courier services company when it comes to deliveries within the island. This means that the courier companies locally would potentially have much greater economies of scale when it comes to local deliveries.
International freight companies are very good at what they claim to do, and most local couriers cannot challenge them when it comes to international deliveries due to the lack of planes and/or ships. Hence, you should ideally go with a stable and reputable firm like DHL or Fedex for international courier services.
However, when it comes to local courier companies, most founders are well-versed with the locations and navigation around Singapore. Therefore, they would likely have the greatest economies of scale because they’re extremely familiar with the roads and are able to plan out the best and most economically and time-efficient routes in Singapore to the various pick up as well as recipient locations.
From what I know, most international freight companies charge pretty high for local courier services within the island of Singapore, while local companies such as Roadmaster, Regent, PCA Masters and Network Courier all charge considerably cheaper / affordable prices.
Therefore, the conclusion that I have for you is that if you need to collect and deliver goods and/or documents within Singapore, then going with a local courier company is a better choice.