What it is
A B2B contact database that claims 500M+ professional profiles with verified phone numbers and emails. ZoomInfo draws 6.8 million monthly visits from sales development reps, account executives, and marketing teams who use it to find decision-makers and track buying signals. The tool combines contact data with intent monitoring that flags when companies research specific solutions. Reviewers consistently praise the organizational charts feature for mapping who reports to whom inside target accounts.
At a glance
ZoomInfo maintains a proprietary database of 500+ million B2B contacts with verified phone numbers and emails that competitors can't match. The platform offers specialized intent signals showing which companies are actively researching solutions, plus deep integrations with CRMs like Salesforce that automate the entire prospecting workflow from research to outreach.
Strong evidenceQuality score
ZoomInfo B2B contact data and prospecting platform for sales teams at scale, but expensive and accuracy varies by market.
This score is our editorial judgment, computed automatically from the sources, weights, and dates shown above. It reflects the data we could verify as of October 12, 2026, not a guarantee or statement of fact about ZoomInfo. Third-party ratings and quotes belong to their original platforms and authors. Thin data lowers our confidence label, and we say so instead of guessing. Work on ZoomInfo? Dispute any datapoint and we will review it, publish your response, and correct verified errors.
Plans
Free trials available but requires sales contact; aggressive post-trial billing practices reported
Based on 69 classified review complaints about rate limits, credits, and billing.
Community feedback
Ratings and quoted comments below are aggregated from third-party sources and reflect those users' views, not SearchTools.ai's.
themes inside the Sentiment pillar — not score ingredients
“We are using Zoominfo for 9 years now. What we like: 1. Breadth of features, including intent, website visitors, scoops (pain points) and technology data. 2. Ease of integration with Salesforce and flexibility in how we update our CRM database. 3. Ease of filtering and creating tailored lists. 4. Our salesteams love the increase in productivity since using Zoominfo.5. Strong account team (account manager and customer success. Our customer success manager knows the platform very well, we have alw”
“We tried the platform with eagerness. We did all of the training. However, the data is crap. Not even close to what was promised. Most emails were non deliverable. This waste far more of our time and we are far worse off than if we did nothing at all. Please carefully consider other optins. We are in a small market. Maybe that is the downfall of the platform. Not sure. Your experience may not be the same as ours. But I can say that I wish we had read the reviews from others before signing on. ”
“My company used ZoomInfo for one year, but within six months it became clear we would not be renewing. While the platform is marketed as providing highly accurate, verified contact data (including direct phone numbers, emails, and physical addresses), our experience was very different. We recently completed a direct mail campaign using contacts sourced from ZoomInfo that were rated A or A+ for accuracy. Out of approximately 350 mail pieces sent, approximately 50 were identified as invalid — inc”
“They lie to you about the products capabilities. Charge an insane amount and get people with false promises of what the product can achieve. Majority of the information is incorrect and the search filters do not work correctly. They will charge an insane amount, sell you with lies about the product, and then WILL NOT LET YOU CANCEL. You will get stuck in a contract for a product that offers zero value. ”
“ZoomInfo for B2B Software Sales — Overall, ZoomInfo is as excellent and foundational of a tool as any CRM. It is easy to integrate into and improves every workflow. The ROI cannot be understated, it's value speaks for itself. — ZoomInfo is an essential tool for any prospecting role. The base level ability to find contact information for almost any target is phenomenal, and its ability to branch out to find similar targets as well. I would not be able to effectively prospect without ZoomInfo. — S”
“Bunch of scammers!! Avoid this company at all costs! Stick to the likes of Lusha, clay, Apollo! Don’t support this fraud company ”
“This company is giving out my personal mobile number. I have no idea how they got hold of it. People calling are generally horrified that they've been given a person mobile number instead of a company phone. Apparently, Zoominfo have it down as the main point of contact for my company. I've tried to use their automated system to remove my details from their database. They sent an automated email saying someone would be in touch. Three weeks later and no one has been in touch. I've submitted a ”
“Collating personal information and selling to 3rd parties. Seemingly impossible to get data removed. Clearly not GDPR compliant.”
“What I like best about GTM Workspace is that it brings a lot of the sales research workflow together in one place. The UI is clean and easy to navigate, which makes it simple to find account and contact information without spending too much time figuring out where things are. The integrations are also useful because they help connect the data with the tools we already use, making the overall workflow more seamless. From a performance perspective, the platform is responsive and makes it quick to ”
“Has anyone else experienced coercion and deception via ZoomInfo? They knowingly sold us software that was buggy and didn’t go to the contacts specified. Despite breach of contract in two parts for 99% uptime and contact accuracy they still didn’t honor terms forcing us to seek legal recourse. Their ZoomInfo LinkedIn Chrome extension was crashing our 32GB MacBook for over 2 days before we finally figured out ZoomInfo was responsible. We went a business quarter almost with it down and from the rev”
“Worked great until a few days ago. It won't log in even though I'm logged into Zoominfo on another tab. When I try to log in, the page just refreshes and doesn't log in.”
“The extension is borderline unusable since the last update. It stops working and needs to be shut down after every contact export.”
“Hello, I am happy to help get your information removed. You can send me a direct message with the cell phone number you would like removed and I can get this taken down. Please note any information you provide will only be used to locate and remove your data. Or, you can submit your removal request here: https://privacyrequest.zoominfo.com/remove/verify Thank you, Jen from ZoomInfo”
“This company is giving out my personal mobile number. I have no idea how they got hold of it. People calling are generally horrified that they've been given a person mobile number instead of a company phone. Apparently, Zoominfo have it down as the main point of contact for my company. I've tried to use their automated system to remove my details from their database. They sent an automated email saying someone would be in touch. Three weeks later and no one has been in touch. I've submitted a ”
“Wrong platform issued and no customer support once contract was signed. I reached out multiple times via email, call and text to Jack Taylor (Strategic Account Manager) after getting the wrong platform. No response. We were transferred to a different rep with 6 months of experience who also did not resolve our issues. Overall, it has been a very disappointing experience. ”
“The absolute worst customer service, I account rep just videos or tutorials. Absolute worst investment for leads. This place laid off 600 ppl recently as well so makes sense.”
“What I like most about GTM Workspace is how it brings key information and tools into one place, making it easier to organize and manage my workflow. I especially appreciate how quickly I can find the information I need and use it to prioritize accounts and prospects without constantly switching between different tools. It has helped make my day-to-day workflow more efficient and streamlined, and an unexpected benefit has been how much easier it is to stay organized and keep track of opportunitie”
“I only used their free trial, but just gaining access for 3 days was a painful process. From the moment I entered my phone number, their outreach reps harassed me to book a call with the account manager, even calling me as many as 10 times in one day. When I’d tell them I was busy they would book a call anyway and spam me with phone calls and emails. There must be some sort of violation of anti-spam/PIPEDA laws going on, because the amount of times they will contact me even after I’ve told them ”
“Percentage of data accuracy is around 55% Product pricing is very high. Is extremely difficult to use Automation tools have no stop command. ZoomInfo robo spammed my contacts thus damaging my brand and reputation. ”
“What I like best about GTM Workspace is that it brings a lot of the sales research workflow together in one place. The UI is clean and easy to navigate, which makes it simple to find account and contact information without spending too much time figuring out where things are. The integrations are also useful because they help connect the data with the tools we already use, making the overall workflow more seamless. From a performance perspective, the platform is responsive and makes it quick to ”
A composite of the quality dimensions weighted by mention volume, then capped by predator / abuse-detection rules.
Watch & learn

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Capabilities
Finds and qualifies prospective customers, then enriches contact details for outreach
Manages customer records, logs interactions, and surfaces insights inside your sales pipeline
Helps you draft outreach, qualify leads, and move deals through your pipeline
The honest take
Distinct themes surfaced across 11.3K reviews from 6 sources — each grounded in real review text, ranked by how often it comes up.
Questions
ZoomInfo is an AI-powered B2B sales and marketing platform that helps teams find and connect with prospects using verified contact data and intent signals. Built on a database of over 500 million professional contacts and 100 million companies, it automates lead generation and CRM enrichment for sales teams. The platform uses AI agents and workflows to identify which accounts are ready to buy and explains why prospects are moving through the sales funnel.
Yes, ZoomInfo offers a permanent free plan called ZoomInfo Lite that requires no credit card. For more advanced features, they offer paid plans including Professional, Copilot Advanced, and Copilot Enterprise tiers. The platform uses a credit-based pricing model where credits are consumed when you export contact or company profiles, rather than fixed seat pricing.
The GTM Context Graph is ZoomInfo's AI technology that analyzes data patterns to explain why accounts are moving through the sales funnel, not just flag activity. This differentiates it from basic contact databases by providing reasoning behind account movement and buyer behavior. It helps sales teams understand the context behind prospect actions rather than simply alerting them to generic activities.
ZoomInfo integrates natively with major CRM platforms including Salesforce, HubSpot, and Microsoft Dynamics 365. It also connects with over 120 sales and marketing tools including Outreach, Salesloft, and Marketo. These integrations allow for automatic CRM data enrichment and seamless workflow automation across your existing tech stack.
ZoomInfo Copilot is an AI agent that prioritizes accounts based on unique B2B signals and provides deeper insights into prospect behavior. It generates AI-powered account summaries and talking points for sales outreach, helping sales reps focus on the most promising opportunities. The Copilot technology is available in Advanced and Enterprise tiers with increasing levels of automation and insights.
Yes, ZoomInfo tracks buyer intent signals to identify accounts that are ready to purchase. The platform offers real-time buyer intent signals in higher-tier plans and includes Streaming Intent as an add-on for immediate buyer signal alerts. This helps sales and marketing teams focus their efforts on prospects who are actively researching solutions in their market.
ZoomInfo is available as a web-based tool and also offers an iOS mobile app. The platform includes a Chrome extension for prospecting directly from your browser, allowing you to research and capture prospect information while browsing LinkedIn, company websites, or other online sources.
ZoomInfo automatically routes leads based on territory, account fit, and buying stage through its workflow automation features. The platform can set up automated outreach sequences and sales activity automation, particularly in the higher-tier Copilot plans. This helps ensure leads reach the right sales rep at the right time without manual intervention.
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