If you're a SaaS founder asking 'which B2B review platform should I invest in', the right answer depends on your ACV, your buyer persona, and your sales motion. We tracked conversion data across 88 SaaS clients spanning 18 categories through 2025 and into 2026 to surface where each platform actually delivers.
The four platforms — at a glance
- G2: 175k+ products listed. Strongest brand recognition with buyers. Quarterly Grid Reports drive PR. Higher cost (paid-tier focused).
- Capterra: Gartner-owned. Strong on long-tail software categories. Bidirectional traffic from Software Advice and GetApp.
- TrustRadius: Smaller buyer base, higher-intent reviews (longer-form). Strong in mid-market and enterprise.
- Gartner Peer Insights: Enterprise-only signal. Lower volume, very high credibility. Pay-walled for buyers in some categories.
The conversion data
Across our 88-client panel, lead-to-opportunity conversion rates from each platform:
- G2: median 16% (range 8–28%)
- Capterra: median 19% (range 11–32%) — higher than G2 because of long-tail intent
- TrustRadius: median 24% (range 15–38%) — fewer leads but better fit
- Gartner Peer Insights: median 31% (range 22–46%) — enterprise buyers, very high intent
Lead volume goes the opposite direction — G2 delivers ~5× the lead volume of Gartner Peer Insights for the same category.
Buyer-intent quality by platform
G2 buyers tend to be earlier-stage researchers — pre-RFP exploration. Capterra buyers similarly. TrustRadius and Gartner Peer Insights skew later-stage — RFP-active, often with budget. Match the platform to your sales motion: high-volume PLG fits G2/Capterra; long-cycle enterprise fits TrustRadius/Gartner.
When to use which (decision tree)
- SMB / PLG SaaS under $10k ACV: G2 + Capterra. Skip the others.
- Mid-market $10k–$100k ACV: G2 + TrustRadius. Capterra optional.
- Enterprise $100k+ ACV: TrustRadius + Gartner Peer Insights. G2 for awareness only.
- Vertical SaaS (legal, medical, etc.): Capterra + your vertical's industry directory. Skip G2 unless category is dense.
Cost considerations
G2's paid tier (Premium) starts around $20k/year. Capterra runs on a CPC model — variable spend, but most categories average $4–$25/click for software keywords. TrustRadius offers paid promotion in some categories. Gartner Peer Insights is unpaid but requires active vendor solicitation of customers.
Most efficient spend in our data: a $20k G2 budget plus $1k/month Capterra CPC delivers more pipeline than $40k on either alone.
Schema setup matters
Each platform outputs review schema differently. Ensure your own website mirrors the platform's review data with AggregateRating + Review schema. Google rich snippets pull from the highest-signal source — usually your site if schema is clean.
Match the platform to your sales motion, not your ego
The mistake we watch SaaS founders make is choosing the platform with the biggest logo rather than the one that fits how they actually sell. If you're product-led with a sub-$10k ACV, G2 and Capterra deliver the volume of early-stage researchers you need, and the lower per-lead conversion is fine because the leads are cheap and plentiful. If you're closing six-figure enterprise deals through a sales team, TrustRadius and Gartner Peer Insights deliver fewer but far higher-intent buyers — the kind already in an RFP.
Spreading thin across all four usually beats none of them well. Pick the two that map to your motion, build genuine review depth there, and ignore the rest until you've saturated those.
The schema move that compounds your review spend
Whatever platform you invest in, mirror the outcome on your own site. Add AggregateRating and Review schema to your product pages reflecting genuine customer reviews you collect directly. Google's rich-snippet stars usually pull from the highest-signal source, and when that's your own clean schema, you capture the SERP enhancement instead of handing all of it to G2's domain.
One caveat we're firm about: this only applies to real reviews you genuinely allow on your site, never self-serving testimonials dressed up as Review schema. Google's policy prohibits the latter, and the penalty isn't worth the star rating.
"Match the platform to your sales motion. PLG SaaS lives on G2 and Capterra. Enterprise SaaS lives on TrustRadius and Gartner."
— Senior strategist, The Review Makers
