G2 is the default starting point for B2B software buying decisions. With over 3 million verified reviews and 90 million annual buyers researching products on the platform, it works as both a marketplace where buyers discover software and a data platform where vendors identify those buyers. Its acquisition of Capterra, Software Advice, and GetApp from Gartner makes it the largest player in software discovery.
To write this G2 review, we analyzed the platform in depth. It's a good fit if:
You're a B2B software vendor building credibility through verified peer reviews
You want to see which companies are researching your product category
You need marketing content (badges, reports, Grid placements) backed by third-party validation
Your buyers already use G2 during software evaluation
You want to position your product for AI-driven software recommendations
However, G2 might not be the best choice if:
You need verified contact data (direct dials, business emails) for the buyers showing intent
You require intent signals from beyond a single review platform
You want to act on buyer signals with built-in outreach and engagement tools
You need company firmographics, technographics, and org charts alongside intent data
You're looking for a platform that combines intelligence and execution in one place
In that case, consider ZoomInfo: an AI GTM platform that pairs B2B data (500M contacts, 100M companies, 135M+ verified phone numbers, 200M+ verified business email addresses) with a GTM Context Graph that combines intent signals, CRM records, conversation intelligence, and behavioral data into a single intelligence layer.
Where G2 tells you which companies are researching software, ZoomInfo tells you who to contact, why they're in-market, and what to say, then gives you the tools to act on it.
We've included a detailed look at ZoomInfo later in this G2 review, as the platform that picks up where G2's intent signals leave off. If you're ready to see how intelligence and execution work together, you can try ZoomInfo free.
What is G2?
G2 is a B2B software marketplace and go-to-market intelligence platform founded in 2012 as G2 Crowd, then rebranded to G2 in 2019.

Co-founded by Godard Abel, Tim Handorf, and Mike Wheeler, the platform was built on a simple premise: software buying decisions should come from verified user reviews, not analyst briefings or vendor marketing.
The platform serves two audiences. For software buyers, G2 is a research destination for reading peer reviews, comparing products, and building shortlists.
For software vendors, G2 offers a suite of products spanning Profiles, Reviews, Content, Buyer Intent, Market Intelligence, and AI Custom Research.

Source: G2
G2 currently reaches over 90 million annual buyers, hosts 3 million+ verified reviews, and claims that 100% of Fortune 500 companies use the platform as buyers.
On January 29, 2026, G2 acquired Capterra, Software Advice, and GetApp from Gartner, a move projected to expand its reach to over 200 million annual software buyers and nearly 6 million verified reviews.
The ideal G2 vendor customer is a B2B software company with a dedicated marketing or revenue operations function, typically $5M or more in ARR, that invests in demand generation and account-based marketing.
G2 Pros & Cons
Pros | Cons |
|---|---|
Largest B2B software review marketplace by volume and traffic | Buyer Intent limited to in-platform behavior only |
First-party intent data from active software evaluation behavior | No verified contact data for the buyers showing intent |
Verified reviews trusted by buyers and AI systems alike | Pricing is opaque and negotiation-dependent |
Wide integration ecosystem (Salesforce, HubSpot, 6sense, and more) | Starter plan doubles in price after year one |
Permanent free tier for basic profile and review collection | Review generation requires ongoing investment to maintain rankings |
G2 Grid rankings widely referenced in B2B marketing | Limited coverage in non-tech verticals |
AI Answer Economy positioning with strong LLM citation rates | No built-in outreach or engagement tools |
G2 Review: How It Works & Key Features
G2 Profiles and Reviews: Build credibility through verified peer validation on the largest B2B review marketplace.
A G2 Profile is a vendor-managed product listing that puts a software company in front of roughly 90 million buyers a year. Vendors can claim a free profile, then fill it with product information, media, screenshots, demo videos, and pricing details through the my.G2 dashboard.

Source: G2
The profile's value comes mostly from the reviews attached to it. G2's review collection tools include email campaigns with gift card incentives, in-app prompts through integrations with Pendo, Delighted, Medallia, and Sendoso, AI-assisted drafting from customer call transcripts, and video reviews.
Every review goes through human moderation before publication and captures 42 structured data points per submission.
Reviews feed directly into G2's Grid ranking algorithm, which scores products on Satisfaction and Market Presence.
Source: G2
Profile completeness and review recency influence category rankings, creating a compounding effect: more reviews improve ranking, which drives more buyer traffic, which generates more intent signals.
G2 also added Verified on LinkedIn to its review moderation, producing 100,000+ reviews from LinkedIn-verified buyers and a 40% drop in review rejection rates.
On the marketing side, G2 provides embeddable widgets (Grid widgets, Star Rating widgets, Testimonials carousels), downloadable badges (SVG and PNG formats), and a Report Library for competitive comparison reports.

Source: G2
The Star Rating widget can inject Product Review schema markup automatically for Google rich snippets.
Buyer Intent Data: Identify companies actively researching your product category on G2.
G2 Buyer Intent captures behavioral signals when software buyers research products on the G2 marketplace.
When a visitor from an identifiable organization views a product profile, checks a pricing page, reads an alternatives page, or compares two products, G2 records that activity as a Buyer Intent signal tied to the buyer's organization.

Source: G2
G2 tracks nine signal types: Profile, Pricing, Alternatives, Category, Compare, Sponsored Content, Licensed Content, Reference Page, and Competitive (activity on a competitor's pages).
Each signal includes the specific page visited, the buyer organization's name and domain, visitor geolocation, and company firmographics.
Two scoring dimensions help prioritize accounts. Buying Stage (Awareness, Consideration, or Decision) estimates where the buyer sits in their evaluation. Activity Level (Low, Medium, or High) measures behavioral intensity, factoring in time spent per page and total pages visited.
The data integrates with major CRM and ABM platforms including Salesforce, HubSpot, 6sense, Demandbase, ZoomInfo, Salesloft, Outreach, Gong, LinkedIn Sales Navigator, Slack, and Snowflake.

Source: G2
Vendors can filter signals by date range, target accounts, firmographics, region, signal type, and competitor products through the my.G2 dashboard.

Source: G2
Market Intelligence: Monitor competitive positioning and switching trends with live data from G2's review corpus.
G2 Market Intelligence turns G2's review database and buyer behavior signals into a continuously updated competitive intelligence hub. Launched in November 2022 as G2's first live data product, it draws on over 1.9 million reviews with 40+ data points per review.

Source: G2
The platform organizes intelligence into discrete modules: a Dashboard summary, Satisfaction benchmarking, Win/Loss switching analysis, Pricing and Contracting intelligence, Traffic Analytics, and a Category Overview with AI-generated insights.

Source: G2
The Win/Loss module stands out: it shows which products customers are switching to and from, drawn from reviewer-stated behavior. The Pricing and Contracting module reveals competitor pricing sentiment, discount patterns, and contract structures.
AI Custom Research: Commission custom buyer-insight studies combining AI interviews with G2's data.
G2 AI Custom Research delivers custom qualitative research faster and cheaper than traditional methods. Built on G2's acquisition of unSurvey, the service uses AI voice agents to conduct adaptive interviews with respondents sourced from G2's verified buyer community.
The system can run 100+ daily interviews simultaneously, each capturing 20+ minutes of conversation with real-time follow-up questions. G2 claims 5x faster delivery than traditional research, 70% cost reduction, and 30% higher response rates. A rapid synthetic AI persona version of the report can be delivered within one day.
This product is sold as a separate engagement (single projects or subscription programs) and is most relevant to vendors needing custom messaging research, win/loss analysis, or category positioning insights.
Where G2 Falls Short
G2 excels as a review marketplace and a source of in-platform buyer signals, but several limitations appear for teams that need to move from intelligence to action.
Intent Data Is Limited to G2's Own Platform.
G2's Buyer Intent captures only activity that happens on G2. Buyers researching through analyst calls, vendor conversations, peer recommendations, or competing platforms generate no signal.
For niche verticals with limited G2 traffic, intent signal volume may be too thin to drive a consistent ABM program.
No Contact Data Behind the Intent.
G2 identifies companies, not people. When a signal shows that "Acme Corp viewed your competitor's pricing page," G2 does not provide the buyer's name, email, or phone number.
Vendors must add a separate data provider to convert account-level signals into outreach, adding cost and friction.
Pricing Is Opaque and Escalates Quickly.
G2 does not publish prices for Professional or Enterprise tiers. Contracts are negotiation-dependent, with wide variation. The Starter plan doubles in price after year one (from $299/month to $599/month).
Buyer Intent, Market Intelligence, AI Custom Research, and managed services are all separate add-ons with no public pricing. Auto-renewal clauses with 30-day notice windows and no stated cap on renewal price increases add further unpredictability.
Review Generation Demands Continuous Effort.
Maintaining a competitive G2 profile is not a one-time investment. G2's algorithms factor review recency and volume into Grid rankings, so vendors must run ongoing review campaigns to hold position.
Teams without a dedicated customer marketing function often fall behind on review velocity. G2 Review Managed Services can help, but at additional cost.
No Built-In Execution Layer.
G2 identifies buyer interest but provides no tools to act on it. There is no outreach automation, no email sequencing, no dialer, and no sales engagement capability.
Vendors must export signals to separate platforms for every downstream action, which slows response time.
Coverage Drops Outside Core Tech Categories.
G2's review and intent coverage is concentrated in B2B SaaS (marketing tech, sales tech, HR tech, DevOps).
Vendors in healthcare IT, legal tech, construction tech, or other specialized verticals find thinner category coverage and fewer reviewers, which limits both social proof and intent signal usefulness.
These limitations follow naturally from G2's design as a marketplace. But for teams that need both intelligence and execution, the gap between knowing an account is in-market and reaching the right person with the right message is where a platform like ZoomInfo fits.
Top G2 Alternative for Unified Intelligence and Execution: ZoomInfo
ZoomInfo addresses G2's core limitation: the gap between knowing a company is researching and acting on that knowledge. Where G2 captures buyer signals within its marketplace, ZoomInfo combines B2B data, an intelligence layer that explains why deals move, and access methods that deliver that intelligence to any tool or workflow.
Comprehensive B2B Data: ZoomInfo provides the verified contact and company data that turns account-level signals into outreach.
G2 tells you a company is researching software. ZoomInfo tells you who at that company to contact and how to reach them.
ZoomInfo's data platform covers 500M contacts, 100M companies, 135M+ verified phone numbers, 120M direct dials, and 300M+ verified business email addresses. This data goes through a multi-source verification pipeline backed by 300+ human researchers, achieving up to 95% accuracy on first-party data.

Source: ZoomInfo
Beyond contact information, ZoomInfo provides 300+ company attributes for segmentation, department org charts with decision-makers, technographic profiles covering 30,000+ technologies across 30+ million companies, and parent-child company hierarchies.
On the intent side, ZoomInfo Intent tracks signals from 210 million IP-to-Organization pairings and 6 trillion+ keyword-to-device pairings sourced monthly, capturing research behavior across the open web rather than one platform.

Guided Intent, exclusive to ZoomInfo, identifies topics historically correlated with deal success rather than requiring manual topic selection.

Source: ZoomInfo
In a Fortune 500 competitive RFP analyzing 25 million contacts across vendors, the independent consultant concluded that "no other competitor came even close."
Vensure scaled prospecting with ZoomInfo's data. William Kenimer, VP of Revenue Operations, stated: "ZoomInfo gives us the information we need to execute. It's already there, so we can be three steps ahead." (Vensure Case Study)
GTM Context Graph: ZoomInfo's intelligence layer captures not just what happened in a deal, but why.
G2's Market Intelligence shows competitor positioning and switching trends based on review data.
ZoomInfo's GTM Context Graph goes further by combining ZoomInfo's B2B data with your CRM records, conversation transcripts, email interactions, and behavioral signals into a graph that processes 1.5B+ data points daily.
A CRM records that a deal moved stages. G2 Market Intelligence shows that a competitor is gaining review momentum.
The GTM Context Graph connects both to the conversation where the CFO raised ROI concerns, the intent spike showing the account is researching alternatives, and the hiring patterns suggesting an upcoming technology decision. It captures the reasoning behind outcomes, not just the events.

Source: ZoomInfo
This intelligence powers every downstream action: follow-up emails address the specific concern a stakeholder raised, GTM plays target accounts matching your actual win patterns, and forecasts weight deals by buying evidence rather than stage labels.
Seismic attributed 39% of active pipeline to ZoomInfo-influenced opportunities and reported 54% productivity gains. Toby Carrington, Chief Business Officer, stated: "That combination of our internal CRM data, external signals, and AI that's given all that context has helped us craft very specific account- and persona-based messages." (Seismic Case Study)
Universal Access: Use ZoomInfo's intelligence in any tool, any workflow, any AI agent.
G2 integrates with CRM and ABM platforms to push intent signals downstream. ZoomInfo delivers its intelligence through three channels, so where you work never limits the intelligence available.
GTM Workspace gives sellers a single place where prioritized accounts, AI-drafted outreach, and deal execution come together. AI agents handle account research, follow-ups, signal monitoring, and CRM updates.

Source: ZoomInfo
Databricks reached prospects 50% faster using it; Thomson Reuters increased closed-won deals by 40%.

Source: ZoomInfo
GTM Studio gives marketers, RevOps, and GTM engineers a builder environment where audience definition, campaign orchestration, and pipeline measurement happen in natural language. Expansion plays that used to take three weeks now launch in 30 minutes.

Source: ZoomInfo
For teams building beyond ZoomInfo's products, APIs and MCP expose the same intelligence to any custom agent, internal tool, or partner platform. API access is included in all relevant plans.

Source: ZoomInfo
BDO Canada's Jerry Wilson, Senior Marketing Intelligence Analyst, stated: "The plug-and-play aspect of the API means I can integrate it very easily into any process and get information at a moment's notice." The team cut time spent on internal data dashboard updates by 87%. (BDO Canada Case Study)
Pricing: Custom-quoted with a permanent free tier and 7-day trial.
ZoomInfo uses a custom-quoted subscription model with seat-and-credit-based pricing across three product lines (Sales, Marketing, and standalone products like Chorus and Chat), each with tiered plans (Professional, Advanced, Enterprise). Pricing depends on users, credit volume, features, and contract length.
ZoomInfo Lite is a permanent free tier (not a trial) with access to ZoomInfo's B2B database, 10 monthly export credits, individual and company searches, a Chrome extension, and WebSights Lite for website visitor identification.

A separate 7-day free trial gives broader access to core platform features.
G2 or ZoomInfo: Comparison Summary
G2 | ZoomInfo | |
|---|---|---|
Primary focus | B2B software review marketplace and vendor intelligence | AI GTM platform: data, intelligence, and execution |
Intent data source | In-platform behavior on G2 only | 210M IP-to-Organization pairings, 6T+ keyword-device pairings across the web |
Contact data | Account-level identification only | 500M contacts, 135M+ verified phone numbers, 200M+ verified emails |
Company intelligence | Basic firmographics on buyer organizations | 100M companies with 300+ attributes, org charts, technographics |
Execution tools | No built-in outreach or engagement | GTM Workspace (sellers), GTM Studio (marketers/RevOps), Chorus, Chat |
Review marketplace | 3M+ verified reviews, G2 Grid rankings | Not a review marketplace |
Market intelligence | Live competitive benchmarking from review data | GTM Context Graph with CRM, conversation, and behavioral data |
AI capabilities | AI Custom Research, AEO analytics | GTM Context Graph, AI agents, Guided Intent, AI-drafted outreach |
API/MCP access | REST API, MCP server for AI assistants | Enterprise API, MCP server, API access on all relevant plans |
Free tier | Permanent free profile and basic review collection | ZoomInfo Lite (permanent) + 7-day free trial |
Pricing transparency | Starter published ($299/mo year 1); Professional/Enterprise not published | Not published; custom-quoted |
Compliance | GDPR referenced in documentation | ISO 27001, ISO 27701, SOC 2 Type II, TRUSTe GDPR/CCPA |
Best for | Building marketplace credibility and capturing review-based intent | Combining data, intelligence, and execution across the full GTM motion |
Final Verdict
The choice between G2 and ZoomInfo depends on what problem you're solving.
Choose G2 if you need to build credibility in the B2B software marketplace through verified peer reviews, earn Grid placements and badges that strengthen your marketing, and capture intent signals from buyers evaluating software on the platform.
G2 is most valuable when your buyers already use it as part of their research process and when your marketing team can activate account-level intent signals through existing CRM and ABM workflows.
For software vendors investing in brand presence and third-party validation, G2 remains the leading marketplace.
Choose ZoomInfo if you need the full picture: not just which companies are researching, but who to contact, why they're in-market, and what to say. ZoomInfo closes the gap between intelligence and action by combining B2B data with a GTM Context Graph that reasons across your CRM, conversations, and market signals, then delivers that intelligence through native execution tools and open APIs.
For teams that need to move from signal to outreach without stitching together multiple platforms, ZoomInfo provides the foundation.
Get started with ZoomInfo here.
Many teams use both: G2 for marketplace presence and review-derived credibility, and ZoomInfo for the contact data, broader intent coverage, and execution infrastructure that turns signals into revenue. G2 integrates directly with ZoomInfo, making the two platforms complementary rather than exclusive for organizations that can invest in both.
G2 FAQ
What does G2 cost for software vendors?
G2 offers a permanent free tier for basic profile management and review collection. The Starter plan costs $299/month in year one ($2,999/year), but doubles to $599/month ($6,000/year) in year two. Professional and Enterprise tiers are not publicly priced and require a sales conversation.
Buyer Intent, Market Intelligence, AI Custom Research, and managed services are separate add-ons with no published pricing. ZoomInfo also uses custom-quoted pricing with a permanent free tier (ZoomInfo Lite) and a 7-day free trial.
How does G2 Buyer Intent data work?
G2 captures behavioral signals when buyers from identifiable organizations interact with product profiles, pricing pages, competitor comparisons, and category pages on the G2 marketplace.
Signals are scored on two dimensions: Buying Stage (Awareness, Consideration, Decision) and Activity Level (Low, Medium, High). The data integrates with Salesforce, HubSpot, 6sense, Demandbase, and other platforms.
The key limitation: signals only capture activity on G2 itself, not across the broader web.
Does G2 provide contact information for buyers showing intent?
No. G2 identifies organizations, not individuals. When intent data shows a company researching your product category, G2 provides the company name, domain, firmographics, and the specific pages visited, but not the name, email, or phone number of the person doing the research.
Vendors need a separate data provider like ZoomInfo to convert account-level signals into direct outreach to specific buyers.
How many reviews does a vendor need on G2 to be competitive?
G2 does not publish a minimum review threshold for Grid placement, but its algorithms weight both review volume and recency. The "Users Love Us" badge requires at least 20 reviews with an average rating of 4.0 stars or higher.
A product needs a minimum of 10 responses to appear in a Compare Report. Maintaining competitive positioning requires ongoing review campaigns, as stale reviews lose weight over time.
What is G2's AI Answer Economy positioning?
G2 claims its reviews are cited 5x more often in AI-generated answers than competing sources. The platform has launched AEO (Answer Engine Optimization) analytics and an MCP server integration with AI assistants, starting with Claude from Anthropic.
The strategy: as buyers increasingly ask AI assistants for software recommendations, a strong G2 review presence becomes a channel for AI-driven discovery. The AEO software category on G2 grew 2,000% according to the platform.
Does G2 integrate with CRM and sales tools?
Yes. G2 integrates with Salesforce, HubSpot, 6sense, Demandbase, ZoomInfo, Salesloft, Outreach, Gong, LinkedIn Sales Navigator, Slack, Snowflake, and others for Buyer Intent data delivery. Review collection integrations include Pendo, Delighted, Medallia, and Sendoso. G2 also offers a REST API and an MCP server for programmatic access.
However, G2 does not include its own outreach, sequencing, or engagement tools, so all execution happens in connected platforms.
How does G2 compare to ZoomInfo for buyer intent?
G2's intent data captures in-platform behavior: companies visiting product profiles, pricing pages, and competitor comparisons on G2's marketplace. This is high-signal because it reflects active software evaluation, but it only covers G2's own traffic.
ZoomInfo tracks intent signals from 210 million IP-to-Organization pairings and 6 trillion+ keyword-to-device pairings sourced monthly across the broader web. ZoomInfo also pairs intent with verified contact data, letting teams reach specific decision-makers rather than just identifying companies.
Many organizations use both sources together, feeding G2 signals into ZoomInfo's execution layer.
What happened with G2's acquisition of Capterra?
On January 29, 2026, G2 announced the acquisition of Capterra, Software Advice, and GetApp from Gartner. The combined platform is projected to reach over 200 million annual software buyers and hold nearly 6 million verified customer reviews.
G2 has stated the deal will deliver up to 3x more Buyer Intent signals by expanding the behavioral dataset across all four platforms. The acquisition positions G2 as the dominant consolidated platform for B2B software discovery.

