1. [Compare](/compare.txt) 2. Ocean vs Harmonic # Ocean vs Harmonic: startup data compared Harmonic is a startup database built for investors: it finds companies at formation, tracks hiring, funding and growth, and runs an AI research agent on top. Ocean uses contextual intelligence to find your next deal, with the reason on every account. [Start for free](https://book.ocean.io/inbound/api) [Book a demo](https://book.ocean.io/inbound/api) [See Harmonic pricing](#how-much-does-harmonic-cost) Ask AI to compare * [Ask Claude to compare Ocean and Harmonic (opens in a new tab)](https://claude.ai/new?q=Compare%20Ocean.io%20and%20Harmonic%20for%20finding%20startups%20to%20sell%20to%3A%20startup%20coverage%2C%20hiring%20and%20funding%20signals%2C%20contact%20data%2C%20ICP%20fit%2C%20learning%20from%20CRM%20deals%2C%20API%20and%20MCP%20access%2C%20CRM%20sync%20and%20pricing.%20Use%20https%3A%2F%2Fwww.ocean.io%2Fcompare%2Focean-vs-harmonic%20and%20other%20sources%2C%20and%20say%20where%20each%20one%20is%20stronger.) * [Ask ChatGPT to compare Ocean and Harmonic (opens in a new tab)](https://chatgpt.com/?q=Compare%20Ocean.io%20and%20Harmonic%20for%20finding%20startups%20to%20sell%20to%3A%20startup%20coverage%2C%20hiring%20and%20funding%20signals%2C%20contact%20data%2C%20ICP%20fit%2C%20learning%20from%20CRM%20deals%2C%20API%20and%20MCP%20access%2C%20CRM%20sync%20and%20pricing.%20Use%20https%3A%2F%2Fwww.ocean.io%2Fcompare%2Focean-vs-harmonic%20and%20other%20sources%2C%20and%20say%20where%20each%20one%20is%20stronger.) * [Ask Perplexity to compare Ocean and Harmonic (opens in a new tab)](https://www.perplexity.ai/search?q=Compare%20Ocean.io%20and%20Harmonic%20for%20finding%20startups%20to%20sell%20to%3A%20startup%20coverage%2C%20hiring%20and%20funding%20signals%2C%20contact%20data%2C%20ICP%20fit%2C%20learning%20from%20CRM%20deals%2C%20API%20and%20MCP%20access%2C%20CRM%20sync%20and%20pricing.%20Use%20https%3A%2F%2Fwww.ocean.io%2Fcompare%2Focean-vs-harmonic%20and%20other%20sources%2C%20and%20say%20where%20each%20one%20is%20stronger.) * [Ask Gemini to compare Ocean and Harmonic (opens in a new tab)](https://www.google.com/search?udm=50&q=Compare%20Ocean.io%20and%20Harmonic%20for%20finding%20startups%20to%20sell%20to%3A%20startup%20coverage%2C%20hiring%20and%20funding%20signals%2C%20contact%20data%2C%20ICP%20fit%2C%20learning%20from%20CRM%20deals%2C%20API%20and%20MCP%20access%2C%20CRM%20sync%20and%20pricing.%20Use%20https%3A%2F%2Fwww.ocean.io%2Fcompare%2Focean-vs-harmonic%20and%20other%20sources%2C%20and%20say%20where%20each%20one%20is%20stronger.) * [Ask Grok to compare Ocean and Harmonic (opens in a new tab)](https://grok.com/?q=Compare%20Ocean.io%20and%20Harmonic%20for%20finding%20startups%20to%20sell%20to%3A%20startup%20coverage%2C%20hiring%20and%20funding%20signals%2C%20contact%20data%2C%20ICP%20fit%2C%20learning%20from%20CRM%20deals%2C%20API%20and%20MCP%20access%2C%20CRM%20sync%20and%20pricing.%20Use%20https%3A%2F%2Fwww.ocean.io%2Fcompare%2Focean-vs-harmonic%20and%20other%20sources%2C%20and%20say%20where%20each%20one%20is%20stronger.) Updated November 13, 2026. [See sources](#sources) Used by teams at * Coinbase * Revolut * Stripe * HubSpot * Harmony * Productboard * Twilio * Qualtrics * Seismic * Datadog * Jeeves * Plaid * Gartner * PostHog * Decagon * Orb * Rippling * Copy.ai * Aircall * beehiiv * TextExpander * Intercom * Deel * Radisson Hotel Group * Schneider Electric * Swisscom * Micron Technology * GSK * Sony * [How they differ](#how-they-differ) * [Comparison](#ocean-vs-harmonic) * [Harmonic cost](#how-much-does-harmonic-cost) * [Which to choose](#which-to-choose) * [Switching](#switching-from-harmonic) * [Alternatives](#harmonic-alternatives) * [FAQ](#harmonic-faq) --- ## How do Ocean and Harmonic differ? ### ![Harmonic logo: Harmonic alternatives, pricing and comparison with Ocean](https://cdn-bunny.ocean.io/assets/custom/compare/harmonic-mark.webp?width=256) Harmonic Finding startups early, including ones that haven’t announced anything. A fit for investors and corporate development teams. Harmonic is a startup intelligence platform. It says it tracks 35M+ to 40M companies and about 200M people, sourced from legal filings and dozens of public sources, so companies appear before public announcements. ### Ocean Ranking companies by how closely they match your own customers, learned from your won and lost deals, for any buyer type. 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. --- ## Harmonic and Ocean features, side by side What buyers weigh, grouped by the job each part does. A light blue background marks the stronger side. __Ocean vs Harmonic comparison__ | Topic | Ocean | Harmonic | | --------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Finding the right accounts | | | | Lookalikes | Ocean is stronger here. Core of the product. Segments and models learned from your won and lost CRM deals. | Finds startups by filters such as funding, stage, hiring and founder background, and runs thesis searches through Scout. It doesn’t describe finding companies that resemble your customers. | | Learns your ICP from won and lost deals | Ocean is stronger here. Learned automatically from your won and lost deals. | Ranks results by relevance scores based on your preferences and history, and lets you map CRM stages into the app. It doesn’t describe learning fit from your won and lost deals. | | The reason behind each account | Ocean is stronger here. Segment, score, tier and matched signals on every account and every export. | Shows highlights on each company and generates a research report on what it’s building, who it competes with and why now. That explains the company, not why it fits your customers. | | Coverage | Ocean is stronger here. Segments your whole market and shows win rate, deal size and cycle time for each segment. | Deepest on startups, from companies just incorporating to late-stage, and on the investors and funding around them. It’s not a whole-market database for sellers to mature companies. | | Contacts and data | | | | Contacts | Verified emails and direct phones from a waterfall across 16+ data sources. Charged only when a contact is found, and exports are free. | People records with work history, education and background filters for founders and operators. Reviewers describe contact data as thin and pair it with an enrichment vendor. | | Startup formation and talent signals | Doesn’t track founders leaving to start something or companies at formation. It matches fit, not formation. | Catches companies at formation from legal filings and public sources, and tracks hiring, founder moves, stealth starts and funding as they happen. | | Buying signals | Up-to-date signals built in-house from each company’s own teams, leaders, hiring and website. | For GTM teams, event signals on fundraises, key hires such as a first sales hire or a CFO, and growth milestones as timing for outreach. | | Workflow and pricing | | | | CRM sync | Two-way with HubSpot, Salesforce, Pipedrive and Attio. Reads your deals to learn, then writes scores, segments and signals back. | A native Affinity integration, other CRMs through Polytomic, Zapier or n8n, and a Chrome extension. No-code CRM sync is an add-on on API plans. | | AI agents and MCP | MCP server, public API and a chat agent on the same data and lookalike engine. | A hosted MCP server for Claude, ChatGPT and other clients, a REST and GraphQL API, and Scout, an AI research agent in the console and Slack, with Scout in MCP listed as coming soon. | | Security and privacy | SOC 2 Type II and GDPR, per Ocean’s own site. | Lists enterprise security and compliance on its console plan. We found no report named, so ask for it and how it sources people data. | | Pricing | Two ways to buy: a flat-rate plan with credits included, or a custom plan built around your deals and credit volume. | Not published. Console, API and bulk data each route to “Get pricing”. | --- ## How much is Harmonic? Harmonic doesn’t publish prices. Its pricing page shows three lanes, and each ends in “Get pricing”. * The web and mobile app with Scout, network mapping, CSV export and trial MCP credits. Financing and investor data is an add-on: Console * REST and GraphQL access to enrich records and trigger discovery, with full MCP access. Add-ons: financing and investor data, no-code CRM sync and Scout via API: API * The full dataset refreshed weekly and delivered to S3, BigQuery or Snowflake, with financing and investor data as an add-on: Bulk data ### What to expect Reviewers estimate a minimum in the low tens of thousands of dollars a year, often with a three-seat minimum and no free trial. None of those figures comes from Harmonic, so treat them as unverified. Its own pages also differ on size: the pricing table lists 40M companies and 200M people, and its FAQ says 35M+ and 195M+. ### How Ocean charges 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 pricing](/pricing.txt) --- ## Should you choose Ocean or Harmonic? Harmonic shows which startups are forming, hiring and raising. Ocean shows which companies look like your customers, whatever their stage. ### Choose Harmonic if * You invest in or sell to startups and want to catch them at formation * You want founder moves, hiring and funding as live signals and a research agent on top * You want startup data in your warehouse, CRM or AI agent ### Use both if * You use Ocean to rank which startups look like your best customers and Harmonic to catch the ones that just raised or hired * You use Harmonic’s event signals as timing and Ocean’s fit as the reason to reach out [Talk to us](https://book.ocean.io/inbound/api) ### Choose Ocean if * You sell to a mix of companies, not mainly startups * You want fit learned from your won and lost deals * You want the reason on every account and an exact count of the market * You want outbound contact data in the same place [Start for free](https://book.ocean.io/inbound/api) --- ## How to switch from Harmonic to Ocean Five steps. Most sellers who target startups run Harmonic for events and add Ocean to decide which ones fit. ### 1. Export your saved searches Export the companies from your Harmonic lists and saved searches, then run them through Ocean to see how many fit your closed-won pattern. ### 2. Check your plans and seats Find your console seats, any API or bulk plan, your add-ons and your renewal date. ### 3. Connect your CRM Connect HubSpot, Salesforce, Pipedrive or Attio. Ocean reads your closed-won and closed-lost deals to learn what a good account looks like. ### 4. Review the segments and scores Ocean proposes segments and scores, with the reason on each. Correct anything that doesn’t match how you sell. ### 5. Send scored accounts Scores, segments and matched signals go back to your CRM, or into Apollo, Instantly or Lemlist sequences. ### Questions to ask before you rely on Harmonic for targeting * **What do the console, API and bulk lanes cost for our volume, and how many seats are required?** Expect a quote that grows with seats, credits and add-ons, because the entry price is the smallest line; price your real volume. * **How good is contact data for our target roles, or do we need another vendor?** Expect an accuracy claim, because vendors measure it on their own samples; test find and bounce rates on your own list. * **Does it cover our target segment, or mostly funded startups?** Expect a headline database size, because counts come from its own records and not your market; ask for coverage on your list. * **Can we see its security documentation and how it sources people data?** Expect a trust-center link or a request form, because reports sit behind a sales step; ask for the date and scope. Ocean is better because it tells it like it is: contextual intelligence to find your next deal, with the reason on every account. [Start using Ocean](https://book.ocean.io/inbound/api) --- ## How do other Harmonic alternatives compare to Ocean? The right alternative depends on what you use Harmonic for. Here’s what each is built for and where Ocean starts. ### [![Crunchbase logo: Crunchbase alternatives and pricing](https://cdn-bunny.ocean.io/assets/custom/compare/crunchbase-mark.webp?width=192)Crunchbase](/compare/ocean-vs-crunchbase.txt) * Built for: Teams that find companies through funding data and growth predictions. * Where Ocean starts: Ocean ranks companies by how they match your wins, funded or not. ### [![Specter logo: Specter alternatives and pricing](https://cdn-bunny.ocean.io/assets/custom/compare/specter-mark.webp?width=192)Specter](/compare/ocean-vs-specter.txt) * Built for: Investors, and sellers who target startups, that want live signals on hiring, web traffic, revenue and investor interest. * Where Ocean starts: Ocean learns which companies fit from your own deals, then ranks the whole market with the reason on each account, whatever the stage. ### [![Clay logo: Clay alternatives and pricing](https://cdn-bunny.ocean.io/assets/custom/compare/clay-mark.webp?width=192)Clay](/compare/ocean-vs-clay.txt) * Built for: GTM engineers who assemble custom enrichment and research workflows from many data sources. * Where Ocean starts: Ocean starts from your closed-won deals and ranks the market, instead of a build. ### [![ZoomInfo logo: ZoomInfo alternatives and pricing](https://cdn-bunny.ocean.io/assets/custom/compare/zoominfo-mark.webp?width=192)ZoomInfo](/compare/ocean-vs-zoominfo.txt) * Built 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. ### [![Apollo logo: Apollo alternatives and pricing](https://cdn-bunny.ocean.io/assets/custom/compare/apollo-mark.webp?width=192)Apollo](/compare/ocean-vs-apollo.txt) * Built 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. --- ## Harmonic pricing and alternatives: common questions Short answers on what Harmonic does, what it costs, how Ocean compares and what to check before you buy. **What is Harmonic?** A startup intelligence platform that tracks tens of millions of companies and about 200M people from formation, with hiring, funding and founder signals, an AI research agent, an API, an MCP server and bulk delivery. **How much does Harmonic cost?** It doesn’t publish prices. Console, API and bulk data are each quoted after a demo. Reviewers estimate a minimum in the low tens of thousands of dollars a year, but none of those figures comes from Harmonic. **Who is Harmonic for?** Venture and growth investors and corporate development teams first, plus GTM teams whose customers are startups. It isn’t built for broad account targeting across mature companies. **Does Harmonic learn from my won and lost deals?** It ranks results by relevance to your preferences and history, but doesn’t describe learning fit from your won and lost deals. Ocean reads your CRM deals, learns the ICP and ranks every company against it. **Does Harmonic have an MCP server?** Yes, a hosted MCP server for Claude, ChatGPT and other clients, alongside a REST and GraphQL API. Ocean has an MCP server and a public API on the same data and lookalike engine. **Does Harmonic integrate with my CRM?** It has a native Affinity integration, and other CRMs connect through Polytomic, Zapier or n8n. Ocean has native two-way sync with HubSpot, Salesforce, Pipedrive and Attio. **Is Harmonic ready for an enterprise security review?** It lists enterprise security and compliance on its console plan but names no report on its pricing page, so ask for it and how it sources people data. **How does Ocean find lookalike companies?** 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. --- ## Sources (13) checked November 13, 2026 * [Harmonic](https://harmonic.ai/) * [Harmonic pricing](https://harmonic.ai/pricing) * [Harmonic for GTM teams](https://harmonic.ai/solutions/gtm) * [Harmonic integrations playbook](https://support.harmonic.ai/en/articles/12844015-harmonic-integrations-playbook) * [About Harmonic](https://harmonic.ai/about) * [Harmonic vs Crunchbase (Harmonic)](https://harmonic.ai/blog/harmonic-vs-crunchbase) * [Harmonic API pricing and alternatives (Multiples, a competitor)](https://multiples.vc/compare/harmonic-api-alternatives) * [Harmonic alternative (DataForB2B, a competitor)](https://dataforb2b.ai/alternatives/harmonic-ai) * [Crunchbase](https://www.crunchbase.com/) * [Specter](https://www.tryspecter.com/) * [Clay](https://www.clay.com/) * [ZoomInfo pricing and product pages](https://www.zoominfo.com/pricing) * [Apollo pricing](https://www.apollo.io/pricing) --- ## What teams say about Ocean [All case studies](/case-studies.txt) --- > Today we can more confidently say we're reaching out to all the companies that could potentially buy from us. > > — Josh Pudnos, Director of Commercial Operations, Brandwatch [Read Brandwatch's story](/case-studies/brandwatch.txt) > With Ocean.io we can focus our ad spend on the right companies. > > — Martin Nørgaard Klausen, Co-Founder, Lead Motor, Zen Media [Read Zen Media's story](/case-studies/zenmedia.txt) Laura Salmina, Sales Developer at Tele2 IoT [Read Tele2 IoT's story](/case-studies/tele2.txt) Julian Berbec, Growth Marketer at Monta [Read Monta's story](/case-studies/monta.txt) > Working with a trusted partner saves a ton of engineering time and ongoing AI costs. Speed and quality are higher out of the gate. > > — Stefan Kollenberg, Data Partnerships, Clay [Read Clay's story](/case-studies/clay.txt) > Ocean.io reduced our average cost per Marketing Qualified Lead by 23%. > > — Garrett Butler, Digital Engagement, CBC [Read CBC's story](/case-studies/cbc.txt) > Ocean.io expands the sea into an ocean, and Scalestack is great at fishing in this vast ocean. > > — Ezequiel, Head of Product Operations, Scalestack [Read Scalestack's story](/case-studies/scalestack.txt) > Ocean.io allows us to identify lookalike companies with incredible accuracy. > > — Maged, Head of Product, Surfe [Read Surfe's story](/case-studies/surfe.txt) --- [ocean.io logomark](/index.txt) ocean.io logotype [Home](/index.txt) [Discovery](/index.txt) [Workflows](/index.txt) [Context studio](/index.txt) [Search](/index.txt) [Assistant](/index.txt) [Leads](/index.txt) [API](/index.txt) [Extension](/index.txt) Recommendations Segments Models ### Recommendations 1,304 companies Tier 1 · 68 Tier 2 · 241 Tier 3 · 512 Tier 4 · 483 All CRM statuses 1 | Company | Score | Segment | Matched signals | Status | Location | | --------------------------------------------------------------------------------------------------------------------------------- | ----- | ------------------ | ---------------------------------- | ------- | -------------- | | ![Moss logo](https://cdn-bunny.ocean.io/logos/getmoss.com/5cd47a9faf8cd98ac4805334af0a3a31be1edb6c.png?width=72) Moss | T1 92 | Mid-market FinTech | Industries: FinTech +2 | Net new | Germany | | ![Spendesk logo](https://cdn-bunny.ocean.io/logos/spendesk.com/680a4a70ec12e26b7920057edb74b23cfc8af299.png?width=72) Spendesk | T1 89 | Mid-market FinTech | Industries: FinTech +2 | Net new | France | | ![Brex logo](https://cdn-bunny.ocean.io/logos/brex.com/2c66f22edd5c0a2cb1eec442e151128e4e8019a8.png?width=72) Brex | T1 86 | Mid-market FinTech | Industries: FinTech +2 | Net new | United States | | ![Payhawk logo](https://cdn-bunny.ocean.io/logos/payhawk.com/a80969444c1e52f57ae3374048cab1e00e0fdb22.png?width=72) Payhawk | T1 83 | Mid-market FinTech | Industries: FinTech +2 | Net new | United Kingdom | | ![Ramp logo](https://cdn-bunny.ocean.io/assets/custom/pricing/ramp-logomark.webp?width=72) Ramp | T2 79 | Mid-market FinTech | Industries: FinTech +2 | Net new | United States | | ![Rydoo logo](https://cdn-bunny.ocean.io/logos/rydoo.com/32e0ac2fe888f3db8ff3e0eeef98dacb410722b6.png?width=72) Rydoo | T2 74 | Mid-market FinTech | Industries: Software +2 | Net new | Belgium | | ![Circula logo](https://cdn-bunny.ocean.io/logos/circula.com/7a2303a2a1b191b8bcda9eff1af4ec066361f27d.png?width=72) Circula | T2 68 | Mid-market FinTech | Industries: Software +2 | Net new | Germany | | ![Wallester logo](https://cdn-bunny.ocean.io/logos/wallester.com/91c6be05eb0e08e95d0b13c9b1216345389226c2.png?width=72) Wallester | T2 63 | Mid-market FinTech | Industries: Financial Services +2 | Net new | Estonia | ## Move with your market * Context learned from your closed-won deals * Accounts ranked on fit, with the reason shown * Direct push to Salesforce, HubSpot, Pipedrive and Attio [Start for free](https://book.ocean.io/inbound/api) [Book a demo](https://book.ocean.io/inbound/api)