At that size, you likely don't and shouldn't have wasteful committees and formal approval processes. At that size, you probably have a certain pecking order of

At that size, you likely don't and shouldn't have wasteful committees and formal approval processes. At that size, you probably have a certain pecking order of "who has the final say" and know everybody in the company. So the tech lead either dictates a technology, or somebody approaches them and makes their pitch as to why that technology should be used. Or if the devs are trusted, they might have approval to try basically whatever technology they think will get things done best.