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August 19, 2026

G2 vs. Gartner vs. building your own win/loss process

Review platforms tell you how a category feels about vendors in general. They can't tell you why you specifically lost your last twelve deals.

When teams start evaluating competitive intelligence tools, two names come up almost immediately as research starting points: G2's competitive intelligence category page, and Gartner Peer Insights. Both are genuinely useful, and both answer a narrower question than most people think they do.

What review platforms are actually good for

G2 and Gartner Peer Insights both aggregate verified customer reviews of software vendors, organized by category, with filters for company size, industry, and use case. That's genuinely useful for a first pass: which vendors exist in this category, how do buyers similar to you rate them, what do people complain about after they've actually used the product for a while, not just after a demo.

What neither can tell you is why your company, specifically, is losing deals to a specific competitor. Reviews are aggregated across every buyer of that CI tool, not filtered to your market, your ICP, or your actual competitive set. They're a vendor-evaluation input, not a substitute for knowing your own win/loss picture.

The gap only your own process fills

That gap is exactly what a real win/loss process is for: pulling the actual reasons from your own CRM, deal by deal, and finding the patterns in them. The tricky part isn't collecting those reasons, most CRMs already have a dropdown for it, it's making sense of hundreds of entries without either drowning in raw data or over-interpreting a handful of them. We wrote about the specific approach we landed on in why we stopped showing raw win/loss dumps: group by what reps actually selected, rank wins and losses independently, and only surface the patterns that show up often enough to be real.

Use both, for different questions

Use G2 or Gartner Peer Insights to shortlist vendors worth a closer look. Use your own win/loss data to actually understand your market. Treating the first as a substitute for the second is how teams end up picking a highly-rated tool that never answers the one question that actually mattered to them.

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