10 best B2B sales intelligence platforms in 2026

The platforms at a glance: data, use cases and prices

What is a sales intelligence platform?

A sales intelligence platform gives a sales team facts about the companies and people it sells to. The facts can be contact details, company data, intent or news.

The platforms fall into three groups.

• Contact databases, such as ZoomInfo, Cognism, Lusha and UpLead, give you emails and phone numbers.
• Account platforms, such as 6sense and Salesmotion, watch accounts for intent, news and filings.
• Account intelligence tools, such as Kalko, tell you which accounts need you now, and why.

1. Kalko

Finds what each company is working on but has not announced, from job posts, filings and buyer posts. Every claim carries a source and a date.

• Best for: Outbound teams that want a few accounts a week with evidence, and a list of accounts to skip.
• Watch out for: No website visitor identification, no LinkedIn channel, and no two-way HubSpot or Salesforce sync.
• Price: From $99 per month.
• Free plan or trial: Yes, 200 credits, no card.

2. ZoomInfo

A large B2B contact and company database with intent, website visitor and enrichment tools.

• Best for: Enterprise teams selling mainly into North America.
• Watch out for: Reviewers quoted by HockeyStack say coverage is thin outside North America.
• Price: Not published, Vendr median $33,500 a year.
• Free plan or trial: Yes, ZoomInfo Lite is free.

3. LinkedIn Sales Navigator

LinkedIn's prospecting tool, with lead and account search, job-change alerts and InMail.

• Best for: B2B sellers who prospect and multi-thread on LinkedIn.
• Watch out for: No emails or phone numbers, no lead export, and 50 InMails a month.
• Price: $119.99 a month, or $1,079.88 a year.
• Free plan or trial: Yes, card required.

4. Cognism

A B2B contact database focused on compliant European data and phone-verified mobile numbers.

• Best for: Mid-market and enterprise teams prospecting into Europe.
• Watch out for: Pricing is quote-only, and reviewers quoted by Demandbase say some numbers are missing.
• Price: Not published.
• Free plan or trial: No, a free data sample only.

5. Salesmotion

AI agents that watch named accounts in news, filings, earnings calls and job posts, then draft outreach.

• Best for: Enterprise AEs and SDRs working named-account territories.
• Watch out for: The Individual plan tracks 100 accounts and has no Salesforce or HubSpot connector.
• Price: $85 a month billed monthly.
• Free plan or trial: No, an API tier has 100 free credits.

6. Lusha

Self-serve B2B contact data plus dated buying signals.

• Best for: SDRs and small teams that want quick contact lookups.
• Watch out for: The free plan is 40 credits a month.
• Price: $37.45 a month billed annually.
• Free plan or trial: Yes, free plan.

7. 6sense

An ABM platform that ranks accounts with keyword intent, website de-anonymization and B2B data.

• Best for: Enterprise teams running account-based programs.
• Watch out for: Reviewers quoted by Demandbase name a steep learning curve.
• Price: Not published.
• Free plan or trial: No, the free plan ended in August 2026.

8. UpLead

A B2B contact database with verified emails, mobile numbers, technographics and intent.

• Best for: Small teams that want verified contacts at a published price.
• Watch out for: Reviewers quoted by Demandbase say saved searches do not stick.
• Price: $74 a month billed annually.
• Free plan or trial: Yes, 7 days.

9. Amplemarket

An all-in-one sales tool with B2B data, AI agents, multichannel sequences and a dialer.

• Best for: Teams that want to replace a data tool, sequencer and dialer with one.
• Watch out for: The entry plan is $600 a month on an annual term.
• Price: $600 a month, annual term.
• Free plan or trial: Yes, length not stated.

10. Seamless.AI

A prospecting tool that finds verified emails and phone numbers and automates outreach.

• Best for: Outbound teams doing high-volume list building.
• Watch out for: Paid prices are not published, and reviewers quoted by Demandbase raise concerns about business practices.
• Price: Not published.
• Free plan or trial: Yes, free credits.

Which signals do sales intelligence platforms read?

Early signals show up before a project starts, so you can reach the buyer first. Late signals show up when the buyer already compares vendors.

What does Kalko return for each account?

• What the company is working on but has not announced, quoted from its job posts, filings or buyer posts.
• The source link and the publish date for each claim.
• A rank by need, not only by fit, re-scored every week.
• Reasons to skip the account, when Kalko finds any.
• Who to contact and what to say, as a play you approve before anything sends.
• Call prep and drafted messages in the app, in Slack or through MCP.

How does Kalko rank accounts?

Fit tells you which companies match your buyer: industry, size and location. Need tells you who has a reason to buy now, such as a job post written around the problem you solve. Kalko ranks by need.

1. Kalko reads public signals for the accounts in your market, such as job posts, filings and buyer posts.
2. It writes a short case for each account, with the evidence and a check for reasons to skip it.
3. It ranks accounts by need and proposes a few plays each week. A quiet week can have zero plays.
4. You approve each play, and Kalko writes the approved values into your own sender. Only Autopilot, once you arm it, enrolls people on its own.

What does Kalko connect to?

API and MCP access come on every plan. Kalko also works with these tools:

• Reply.io: Kalko researches a value for every merge field your Reply.io templates use, for each prospect, and writes approved values back.
• Instantly: Kalko can push a sequence to Instantly with its steps, schedule and sending ramp.
• Attio: Kalko reads your Attio deals and matches them to accounts by domain.
• Leadfeeder: Kalko reads the companies that visit your website from Leadfeeder.
• Slack: Mention the Kalko app in a Slack channel or send it a direct message.
• HubSpot and Salesforce: Kalko does not sync with HubSpot or Salesforce today.
• MCP: The Kalko MCP server lets Claude, ChatGPT, Cursor and other AI assistants use Kalko directly.

How we picked

We make Kalko, so we list it first. The rest follow in our order of preference for an outbound team that wants evidence before it reaches out.

We checked each tool on its own website on October 22, 2026. We quote the limits from their own pages or from published reviews.

Questions people ask