To be honest, now there is such a huge number of offers from currently operating companies that here you have to rely only on your instinct and luck, if you choose without using anyone's feedback. Reviews can be purely individual, you understand. Personally, I was amazed by the cooperation with the employees of Eleks
https://eleks.com/blog/outsourcing-challenges-part-2-offshore-software-development-team-structure/, who at the time of product development for us managed to become part of a single team. My friend from another company attracted other specialists, so it's up to you to decide.