Its one if those things where you could probably game the metrics to justify half a dozen different answers. For example ISRO doesn't have many launches, but th

Its one if those things where you could probably game the metrics to justify half a dozen different answers. For example ISRO doesn't have many launches, but they do a lot of rideshares so I wouldn't be surprised if they're #1 or #2 in terms of individual satellites launched last year. It also depends a lot on what you consider a commercial launcher. In recent history, the Chinese Long March rockets have been dominating the numbers game (around 25 launches last year, vs around 20 Soyuz and 15 Falcon 9s). But the Long March family is a lot more diverse than most rocket families, so they're probably not #1 if you're comparing specific configurations. You also probably don't want to count rockets that missed space and ended up in the middle of a village, which hurts China's totals.