Unfortunately I don't have enough direct experience to give you recommendations, especially since you probably need a high-RPM-capable type if this is for aircraft projects. All of the higher voltage / higher current controllers I've seen posted about either have been described as having poor support, poor quality, poorly written firmware, poorly written and/or translated setup software (most of the Chinese offerings), or like the Sevcon require a handful of rocket scientists
and some expensive hardware to configure because they aren't meant for DIYers, but only for OEM use where they configure one on a prototype EV then mass produce the EV using the settings determined in prototyping.
(if you were local to me and wanted to spend the money on finding their setup software and hardware, you could test out a Sevcon of some variant I think came off a Zero motorcycle that I can't use because I don't have the software and hardware required to set it up for any motor I actually have; presumably it is setup for one of the 75-x motors they used (but I have no idea which one, and there's no way I know of to find out other than trying motors on it till it works correctly...and I don't know what options, voltages, etc are setup in it either).
I think there are VESC variants, including some designed here on the forum, that could do the job. Not sure if any are commercially available, but since they're open-source, they could be DIYed if you're up for that.
If any of the automotive EV inverters have the voltage/current requirements you are after (most probably do) you could zombify it by cutting it's brain out and replacing it with either a VESC control brain or the Lebowski brain. There are some websites/pages around the web about doing the Lebowski transplant process including one I started (but haven't finished yet) here on ES. (the one I started should have enough info to complete the process, and it links to my sources of info where the process was already successfully completed by others before I started, but not detailed very well, which is why I documented mine).
powerdrives.net
