Ask any executive how long their last vendor search took, and the answer is almost always longer than they expected going in. Not because good vendors are scarce. Because the process of finding them was never designed to be efficient.
The first problem is where the search starts. A Google search returns whoever spent the most on marketing that quarter, not whoever is best suited to your situation. A referral gives you exactly one data point, filtered through someone else's priorities. A vendor directory gives you volume without judgment, which is worse than no list at all, because now you have to build the judgment yourself, from scratch, for a category you don't work in every day.
The real bottleneck is evaluation, not discovery
Most executives can find ten vendors in an afternoon. What takes weeks is figuring out which of those ten are actually credible. Do they have real enterprise customers, or a case study written by their own marketing team? Can their infrastructure handle your scale, or does the sales deck just say "enterprise-ready" because every sales deck says that? Has anyone who isn't being paid by the vendor actually vouched for them?
None of that shows up in a first call. It takes reference checks, technical questions someone on your team may not have time to ask well, and a comparison across options that are rarely described the same way twice.
Time spent here is time not spent leading
The irony is that vendor selection is rarely the interesting part of anyone's job. It is overhead that has to happen before the real work, the actual partnership, the actual results, can begin. Executives end up doing it anyway because delegating it fully has historically meant losing visibility into the decision.
That is the specific gap a private sourcing service closes: someone else does the unglamorous evaluation work, on your criteria, and hands you a short list you can actually trust, without you disappearing into it for three weeks.