ZoomInfo vs. Seamless.AI

Seamless.AI vs ZoomInfo: Which sales intelligence platform is right for you in 2026?

Seamless.AI and ZoomInfo both give GTM teams B2B contact data and prospecting in one place. They differ in how they find data (real-time contact search versus a verified GTM data foundation), how you pay (a free plan with Pro and Enterprise quoted, versus consumption credits), and how far AI goes beyond prospecting. This page compares them on data, intent, engagement, AI, integrations and pricing, so you can see which fits your team.

Last updated: October 2026

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Seamless.AI vs ZoomInfo at a glance

  • Best for: Seamless.AI suits sales leaders, AEs and SDRs who want real-time contact search and a free plan to start. ZoomInfo suits sales, marketing and RevOps teams that need one data foundation and AI agents across the whole GTM motion.

  • Data: ZoomInfo covers 500M contacts and 100M companies, with up to 95% accuracy on first-party data. Seamless.AI looks up contacts in real time rather than from a cached database.

  • Pricing: Seamless.AI has a free plan, with Pro and Enterprise quoted. ZoomInfo's GTM.AI is free to start, with consumption credits and no seat fees.

  • AI: Seamless.AI offers Pitch Intelligence and AI Agents. ZoomInfo offers Agent Teams, with 50+ ready-made agents that run multi-step plays.

  • Proof: More than half of the Fortune 500 trust ZoomInfo to run their go-to-market.

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What is ZoomInfo? What is Seamless.AI?

Both platforms give GTM teams contact data and outreach in one place. They differ in how they find data, how much of the go-to-market motion they cover, and how you pay.

What is ZoomInfo?

  • An AI GTM platform built on one data foundation, the GTM Context Graph

  • 500M contacts and 100M companies, with 135M+ verified phone numbers and 200M+ verified business emails

  • Intent and buying signals inside GTM Workspace and GTM Studio

  • Agent Teams and 50+ ready-made agents for prospecting, enrichment and account research

  • Conversation intelligence that feeds call context into the GTM Context Graph

  • API, MCP and CLI access through GTM.AI, and a free start with no credit card needed

What is Seamless.AI?

  • A real-time AI search engine for B2B contact data, with emails, mobile numbers and direct dials

  • Buyer Intent Data and Job Changes alerts on the same contact data

  • CRM Enrich to keep CRM records current

  • Engagement Hub with multi-channel sequencing and AI-written outreach

  • AI Agents and an Automation Network that connect to CRMs and sales tools

  • A free plan to start, with Pro and Enterprise quoted by sales

Seamless.AI vs ZoomInfo feature comparison

How the two platforms compare on price, data, engagement, AI and access.

Features
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Best for

Sales, marketing and RevOps teams that want data and AI agents on one platform, starting free on GTM.AI

Sales leaders, AEs and SDRs who want real-time contact search and a free plan to start

Starting price

Free to start on GTM.AI, with no credit card needed

Free plan, Pro and Enterprise quoted (Seamless.AI pricing guide)

How you pay

Consumption credits with no seat fees: data credits for records, AI credits for research and agent work

Credit-based access. Pro adds more credits and premium products.

Data source

500M contacts and 100M companies, including 135M+ verified phone numbers and 200M+ verified business emails

A real-time AI search engine for B2B contacts, rather than a cached database (Seamless.AI's own framing)

Intent and buying signals

Intent and buying signals across GTM Workspace and GTM Studio

Buyer Intent Data, plus Job Changes alerts

Sales engagement

GTM Workspace puts prioritized accounts, buying signals and AI-drafted outreach in one seller view. Signals sync into engagement tools such as Salesloft.

Engagement Hub with multi-channel sequencing and AI-written outreach

Conversation intelligence

Conversation intelligence that feeds call context into the GTM Context Graph

No conversation intelligence product listed

AI agents

Agent Teams run full plays from 50+ ready-made agents, with a credit estimate before each play

AI Agents, and Pitch Intelligence for AI-drafted outreach

API and MCP

API, MCP and CLI through GTM.AI

API for integration. No MCP server listed.

Integrations

Integrations with Salesforce and HubSpot and 120+ other partners

Salesforce and HubSpot

Data comparison

An all-in-one platform is only as good as the data it runs on. Every sequence, dial and AI agent action starts with a contact record, so test both platforms on your own target accounts.

ZoomInfo's data

  • 500M contacts and 100M companies, including 135M+ verified phone numbers and 200M+ verified business emails

  • Multi-source verification, with up to 95% accuracy on first-party data

  • 1.5B+ data points processed daily, connected to CRM data, conversation intelligence and buying signals in the GTM Context Graph

  • Data available in GTM Workspace, GTM Studio and headless through GTM.AI

Seamless.AI's data

  • A real-time AI search engine for B2B contacts, which looks records up at search time instead of a cached database (Seamless.AI's own framing)

  • Prospector returns emails, mobile numbers and direct dials

  • Job Changes alerts and CRM Enrich help keep records current

  • Test both on your own accounts before you decide

AI agents and automation

Both platforms ship AI agents. The difference is how far each one runs a play, and what data it reasons over.

Seamless.AI's AI

Seamless.AI's AI sits next to its contact search. Pitch Intelligence drafts personalized outreach from prospect and company context, and AI Agents automate prospecting, research and outreach workflows. Its Automation Network connects Seamless.AI to CRMs and sales tools. For a rep who wants AI-drafted outreach inside one tool, that is a practical fit.

ZoomInfo's AI agents

ZoomInfo's agents run on the GTM Context Graph, so they reason across verified data, CRM history, intent and conversation signals together. With Agent Teams in GTM Studio, a supervisor agent coordinates specialist agents through a full play, from spotting a signal to outreach and CRM updates. Teams can start from 50+ ready-made agents or describe a play in plain English, and see a credit estimate before a play runs. Agent Teams run in GTM Studio with no new SKU or contract.

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Sales engagement and conversation intelligence

Seamless.AI and ZoomInfo handle execution differently. Seamless.AI puts sequencing and AI-written outreach next to its contact search. ZoomInfo connects execution to intelligence.

Where Seamless.AI stands out

Its Engagement Hub adds multi-channel sequencing and AI-written outreach next to its contact search, with an AI Assistant for outreach copy and engagement analytics.

Where ZoomInfo stands out

GTM Workspace brings prioritized accounts, buying signals and AI-drafted outreach into one seller interface, and signals sync into engagement tools such as Salesloft. ZoomInfo's conversation intelligence captures call context and feeds it back into the GTM Context Graph, so one conversation can inform account priorities and outreach across the team.

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API, MCP, integrations and compliance

An all-in-one platform still has to connect to the rest of your stack, and to your AI tools.

Seamless.AI's access and compliance

Seamless.AI lists an API for integration, with integrations for Salesforce and HubSpot, and a Chrome extension for prospecting from LinkedIn.

ZoomInfo's access and compliance

ZoomInfo delivers the same data wherever you work: in GTM Workspace or GTM Studio, inside Salesforce and HubSpot, or headless through GTM.AI with the API, MCP and CLI. GTM.AI is free to start, and search, lookup and find similar are free. ZoomInfo holds ISO/IEC 27001, 27701 and 27017 certifications, ISO/IEC 42001 for AI governance, and SOC 2 Type II. Its TRUSTe Responsible AI Certification was renewed in August 2026. Its ISO/IEC 42001 certification was announced in October 2026. Details are in the Trust Center.

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Seamless.AI vs ZoomInfo pricing: quote‑based tiers vs. consumption credits

Seamless.AI starts with a free plan and quotes its paid tiers. With ZoomInfo's GTM.AI, you start free and pay only for what your team uses, with no seat fees or contract to begin.

ZoomInfo: start free, pay as you grow

  • Start free. No credit card needed.

  • Data credits pay for data. Each one enriches or exports a single company, contact or intent record.

  • AI credits pay for AI work, like account research and Agent Team plays. Most actions use 1–20 credits, depending on depth.

  • Search, lookup and find similar are free.

  • You see the credit cost before an Agent Team runs a play.

For example:

  • Enriching 500 CRM leads uses 500 data credits.

  • Researching 50 target accounts uses about 500 AI credits.

  • One account research prompt uses about 9–12 AI credits.

Start free on GTM.AI

Seamless.AI: free plan, then quoted tiers

  • A free plan to start.

  • Pro and Enterprise plans are quoted by sales, and both draw on credits.

  • Credits unlock contact data, so cost follows how much data your team pulls.

For a full breakdown, see our Seamless.AI pricing guide.

Seamless.AI vs ZoomInfo reviews

Seamless.AI's reviews

Seamless.AI holds a 4.2 out of 5 rating from 1,215 reviews on G2. Buyers also review it on Capterra and other software sites, where they tend to comment on contact accuracy, credit use and how well the data fits their market. Read recent reviews from teams your size before you decide, and read the full Seamless.AI review for a closer look at what buyers say.

ZoomInfo's reviews

ZoomInfo reviews tend to focus on the depth of its data, its intent signals and how much of the GTM motion it covers in one platform. The fairest test is your own accounts: pull 100 target accounts, run them through both tools, and compare bounce rate, connect rate and time spent cleaning records. For a full breakdown, see our Seamless.AI review. If the reviews point you to another option, compare Seamless.AI alternatives by use case.

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Customer results: what GTM teams get from ZoomInfo

Sendoso cut inaccurate data 70%. monday.com quadrupled its ABM program with ZoomInfo. Here's what teams see when they run GTM on ZoomInfo.

70% less inaccurate data. 1,100+ hours saved. $4.9M+ pipeline in two quarters.

With other providers, we weren't able to get the quality and quantity of data that we needed.

Read the Sendoso story

Kris Rudeegraap

CEO and Co-Founder, Sendoso

39% of active pipeline from ZoomInfo signals. 54% more productive. 11.5 hours saved per week.

It's bringing data together faster than anyone could. It's both a time savings and a quality improvement.

Read the Seismic story

Toby Carrington

Chief Business Officer, Seismic

4X program scale. 22 sales teams across 5 regions.

We can see everything in one place. We can see that the data is correct, understand the signals, and finally optimize our campaigns.

Read the monday.com story

Shai Masot

Strategic Demand & Lead Generation, monday.com

2x higher new customer conversion. 90% higher opportunity open rates. 25% higher customer engagement.

They've done really a great job working with us to get us what we need.

Read the Snowflake story

David Gojo

Sales Data Science Manager, Snowflake

Why GTM teams choose ZoomInfo

Seamless.AI is built around real-time contact search for sellers. ZoomInfo's all-in-one covers the whole go-to-market team on one data foundation, so sales, marketing, RevOps and AI agents work from the same verified accounts, contacts and signals. That is why more than half of the Fortune 500 run their go-to-market on ZoomInfo.

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Start free, pay for what you use

Start on GTM.AI for free and use consumption credits across data, enrichment and AI agents. No per-seat bundle to outgrow, and you see a credit estimate before an Agent Team runs a play.

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AI agents that run plays, not just tasks

Agent Teams coordinate specialist AI agents that run whole GTM plays, from spotting a signal to outreach and CRM updates, on connected data and signals. Seamless.AI's AI Agents automate prospecting, research and outreach workflows.

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One platform for every GTM team

Sellers work in GTM Workspace, marketers and RevOps in GTM Studio, and developers and AI agents headless through GTM.AI, all on 500M contacts and 100M companies, with multi-source verification.

Join the AI GTM platform trusted by more than half of the Fortune 500

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Seamless.AI vs ZoomInfo FAQs

Is Seamless.AI better than ZoomInfo?

It depends on your team. Seamless.AI suits sellers who want real-time contact search and a free plan to start. ZoomInfo suits teams that need one verified data foundation across sales, marketing and RevOps, plus intent signals and AI agents such as Agent Teams. More than half of the Fortune 500 run their go-to-market on ZoomInfo. Test both on your own target accounts.

What are the pricing differences between Seamless.AI and ZoomInfo?

Seamless.AI has a free plan, with Pro and Enterprise quoted by sales. ZoomInfo's GTM.AI is free to start, with no credit card needed. After that you pay with consumption credits instead of seat fees: data credits for each record you enrich or export, and AI credits for research and agent work, mostly 1 to 20 credits per action.

Is there anything better than Seamless.AI?

Seamless.AI is a practical option for individual reps who want quick, real-time contact search. Teams that need deeper verified data, native CRM sync or agents that run full plays often look further. See our Seamless.AI alternatives guide for other options. Compare Seamless.AI alternatives by use case before you decide.

Is there anything better than ZoomInfo?

Few platforms combine ZoomInfo's data foundation, buying signals and AI agents in one place. Cheaper tools can cover narrower jobs such as basic contact lookup. If you only need one of those, compare on price and features. See how ZoomInfo compares with LeadIQ and Lusha.

Which has better data, Seamless.AI or ZoomInfo?

ZoomInfo covers 500M contacts and 100M companies, including 135M+ verified phone numbers and 200M+ verified business emails, with up to 95% accuracy on first-party data. Seamless.AI is a real-time search engine for B2B contacts. Its record counts are not stated here, so run both platforms on a sample of your own target accounts and compare the results.

Does ZoomInfo have a free plan like Seamless.AI?

Yes. GTM.AI is free to start with no credit card needed, and you pay with consumption credits as you use them. Search, lookup and find similar are free. Platform access through the API, MCP and CLI is also available from the start.

Does ZoomInfo offer intent data and AI agents like Seamless.AI?

Both offer buyer intent and AI features. Seamless.AI lists Buyer Intent Data and Pitch Intelligence next to its contact search. ZoomInfo runs intent and buying signals inside GTM Workspace and GTM Studio, and Agent Teams run multi-step plays from 50+ ready-made agents. Compare how each fits the way your team works.