Hi,
Begin by thinking what kind of impression that your company needs to reflect.
Create keywords, also the shapes of the logos and interface of the social media of the company is important factor, but here is few advices:
Soft oranges (warmth view)
Bright energetic lime green of spring green (youth and inovative impression)
Azure, dark blues (trust feeling, friendly apperance)
Brass yellow, matte gold yellow (valuable metal connotation)
Example codes in order (may change the brightness tonne )
#FE4B28
#07D99A , #59FF52
#023459
#BF9004 , #F2D95C