Plumb
C+

B2B software

G2

G2.com, Inc.

Crowd reviews Free to read Visit G2 ↗

Real user reviews wrapped in a business that sells to the vendors it ranks.

What it's really for A software-buying research site. The user reviews are the draw; vendors fund it through leads and intent data.

What our grade covers The grade on this page is about its star ratings and 'Grid' placements for business software, not everything the site does.

High Scoring Confidence Checked against primary sources. We are confident in the facts and the grade here.

Follow the money

Its revenue comes from the vendors it ranks: G2 sells them buyer-intent data and a pay-per-lead product, so the companies featured are the customers.

Source →
Operating since
2012 (14 years)
What it costs you
Free to read The reviews are free to read.
How they make money
Vendor-funded. Sells buyer-intent data and lead generation to the software companies featured, including a pay-per-lead offering.
What they do
Aggregates a large volume of user reviews and "Grid" placements across tens of thousands of products. In early 2026 it acquired Capterra, Software Advice, and GetApp from Gartner for roughly $110M.
What to watch for
It will not tell you a tool is wrong for you, and a vendor that stops spending can quietly slide down the page. Trust the individual reviews, not the ranking.
Composite score
2.60 / 5.00 → grade C+

How the grade was reached

Independence · 30% weight 2 / 5

Does the site take money from the very entities it ranks? Pay-for-placement, vendor-funded data, and affiliate commissions all pull this down. The less the ranking can be bought, the higher the score.

Evidence basis · 30% weight 3 / 5

What is the ranking actually built on? Hands-on testing scores highest, then verified first-hand reviews, then opinion or popularity surveys and self-reported figures, then pay-to-rank, which scores lowest.

Method transparency · 20% weight 3 / 5

Is the methodology published, specific, and reproducible? Can a reader see how a given rank was reached, or is it a black box?

Conflict disclosure · 10% weight 2 / 5

Are commercial relationships, sponsorships, and affiliate arrangements disclosed clearly and near the rankings themselves, rather than buried?

Manipulation resistance · 10% weight 3 / 5

How hard is it to game? Controls against fake reviews, solicited reviews, and vendor gaming raise this; an open box anyone can stuff lowers it.

Evidence

Compare with others

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