6sense predicts which accounts are in-market and runs ads and alerts around them. Ocean decides which accounts to work, ranked from your own won and lost deals.
Used by teams at
6sensePredicting who is in-market and acting on it across ads, sales and AI agents.
6sense calls itself the intelligence engine for agentic go-to-market. It predicts which accounts are in-market from intent data and AI, then runs advertising, sales alerts and AI email around them. Its data also reaches Claude, ChatGPT and Agentforce through an MCP server.
Deciding which accounts to work, ranked from your own deals, with a score your reps can explain.
Ocean is contextual intelligence for go-to-market. It reads what every company actually does from its own website, learns what good looks like from your closed-won and closed-lost deals, and ranks your whole market against it, with the reason behind each score. The ranked accounts arrive in your CRM, your rep queue or your AI agents.
What buyers weigh, grouped by the job each part does. A green check marks the stronger side.
| Topic | Ocean.io logo Ocean | 6sense |
|---|---|---|
| Finding the right accounts | ||
| Lookalikes from your closed-won deals | Ocean is stronger here. Core of the product. Segments and models learned from your won and lost CRM deals. | Predictive models for who is in-market and who fits. |
| The reason behind each account | Ocean is stronger here. Segment, score, tier and matched signals on every account and every export. | Buying stages, 6QA status and keyword intent. |
| How it understands a company | Ocean is stronger here. Reads what each company does from its own website. | Firmographics, technographics and intent data. |
| Market sizing and segments | Ocean is stronger here. Segments your whole market and shows win rate, deal size and cycle time for each segment. | Account lists and audiences for ABM programs. |
| Contacts and data | ||
| Contacts | Ocean is stronger here. Verified emails and direct phones from a waterfall across 16+ data sources. Charged only when a contact is found, and exports are free. | People data and recommended contacts for engaged accounts. |
| Company data | 85M+ companies, built from the open web. | A company database it refreshed with millions of net-new accounts in its fall release. |
| Buying signals | Up-to-date signals built in-house from each company’s own teams, leaders, hiring and website. | Intent data, with 12 new signal triggers in its fall release. |
| Workflow and pricing | ||
| Advertising and orchestration | Sends ranked accounts to your CRM and sequencer. It sells no ads. | 6sense is stronger here. Runs advertising, sales alerts and AI email around in-market accounts. |
| AI agents and MCP | MCP server, public API and a chat agent on the same data and lookalike engine. | An MCP server for Claude, ChatGPT and Copilot Studio, generally available since August 2026. |
| Pricing | Ocean is stronger here. Two ways to buy: a flat-rate plan with credits included, or a custom plan built around your deals and credit volume. | A custom quote. Buyers report a median of $62,000 a year, and the free Sales Intelligence plan ended on August 12, 2026. |
Reviewers rate it well for intent data and predictive models. Most complaints are about cost, complexity and explaining the scores.
4.2 out of 5
6sense’s average on G2
The rating is from G2’s Revenue Marketing category. The themes come from review write-ups.
6sense doesn’t publish prices. Every plan is a custom quote, so the best guide is what buyers report paying.
Median 6sense contract
$62,000 a year
Half of buyers pay less than this and half pay more, across 387 purchases.
6sense made its MCP server generally available in August 2026, so Claude, ChatGPT and Copilot Studio can read its buying stages and intent. It closed its free Sales Intelligence plan the same month.
A flat-rate plan with credits included, or a custom plan built around your deals.
Contacts are charged only when one is found. Exports are free.
See Ocean pricingThey’re built for different jobs, and many enterprise teams run both.
Choose 6sense if Ocean.io logo Use both ifFive steps, working back from your renewal date.
Find the renewal date, the term length and the notice period in your 6sense contract. On a multi-year term, that date matters most.
Export your account lists, scores and buying stages, and note which campaigns and alerts depend on them.
Connect HubSpot, Salesforce, Pipedrive or Attio. Ocean reads your closed-won and closed-lost deals to learn what a good account looks like.
Ocean proposes segments and scores, with the reason on each. Correct anything that doesn’t match how you sell.
Scores, segments and matched signals go back to your CRM, or into Apollo, Instantly or Lemlist sequences.
The right alternative depends on what you use 6sense for. Here’s what each is built for and where Ocean starts.
DemandbaseBuilt for Enterprise ABM programs that combine account data, intent and advertising.
Where Ocean starts Ocean ranks accounts from your own wins and sells no intent or advertising.
ZoomInfoBuilt for Contact and direct-dial volume, with third-party intent, in one contract.
Where Ocean starts Ocean ranks accounts from your closed-won deals instead of selling a database.
LeadspaceBuilt for Teams that keep GTM profiles, signals, routing and scoring accurate in one data cloud.
Where Ocean starts Ocean ranks your market from your own won and lost deals, with the reason on each score.
KeyplayBuilt for Teams that want ICP scores they can inspect and backtest, now part of Inflection.
Where Ocean starts Ocean learns from your won and lost deals, covers any industry and finds the contacts too.
ApolloBuilt for Contacts and sequencing in one tool, with published self-serve plans.
Where Ocean starts Ocean starts from which accounts deserve outreach, then pushes contacts to Apollo, Instantly or Lemlist sequences.
Short answers on 6sense’s cost, its free plan ending, how Ocean compares and what switching takes.
6sense doesn’t publish prices. Buyers report a median of $62,000 a year, from 387 purchases Vendr tracked, with contracts ranging from $11,183 to $176,213.
No. Every plan is a custom quote. Vendr reports buyers save 17% on average off the first quote.
Not any more. 6sense closed its free Sales Intelligence plan on August 12, 2026, and new sign-ups are closed.
Yes. 6sense made its MCP server generally available in August 2026 for Claude, ChatGPT and Copilot Studio. Ocean has an MCP server and a public API on the same data and lookalike engine.
Yes. Keep 6sense for intent and advertising, and use Ocean to decide which accounts those programs target.
Ocean reads what each company does from its own website, learns from your closed-won and closed-lost deals, and returns ranked matches with the reason on each one.
Ocean uses up-to-date signals built in-house from each company’s own teams, leaders, hiring and website, not a third-party intent feed.
Check your renewal date and term, export your account lists and scores, connect your CRM so Ocean reads your won and lost deals, review the segments and scores Ocean proposes, then send scored accounts to your CRM or sequencer.
