Harmonic review

Harmonic is a startup discovery and intelligence platform for finding and tracking companies and the people connected to them. It is aimed at investors, corporate development teams and go-to-market teams that need to identify companies, research them and act on signals such as hiring, fundraising or a change in direction.

The product combines company search with ongoing monitoring. Its Scheduled Scouts run recurring AI searches and alert you when relevant companies or people appear. You can also track people’s backgrounds, career moves and connections, then generate research reports using Harmonic data and information from across the web. Workflow features include opportunity tracking, collaboration and a Chrome Extension. For teams that want to use the data elsewhere, Harmonic offers API access, MCP and bulk delivery.

The pitch is broader than a startup directory: find a company, monitor what changes and bring the resulting information into a team’s research or sales workflow.

Harmonic’s strongest proposition is the combination of discovery and monitoring. A static company database can help build a list, but it does not necessarily tell a team when a company starts hiring, raises money or changes direction. Harmonic’s recurring Scouts and people monitoring are designed to surface those changes without requiring users to repeat searches manually.

That is useful for teams with a defined investment, partnership or prospecting thesis. They can search for companies with granular filters, set recurring searches and follow relevant people as they move between roles. Agentic research reports add a way to gather context from Harmonic’s data and the wider web, while opportunity tracking and collaboration give teams a place to work with what they find.

The data options also suit different workflows. Console access is for teams researching companies and investors; API access is for teams integrating company data; and bulk data is delivered through S3, BigQuery or Snowflake, with weekly refreshes listed. The pricing page lists coverage of 40 million companies, 200 million people and 250,000 investors for Console and bulk data. Those are substantial stated coverage figures, though they do not tell us how complete or current any individual record is.

The main drawback is commercial opacity. The pricing page lists no monthly or annual prices and directs buyers to contact sales. There is no published starting price, and the available information does not state whether a free trial is available. That makes it hard to compare Harmonic with other data providers before talking to sales or to estimate the cost of a broader rollout.

Limits are also unclear. The page lists dataset sizes for Console and bulk data, but those figures are coverage counts, not user or export allowances. For API access, seat and usage limits are not published. Overage costs are not published either. Financing and investor data and no-code CRM sync are described as add-ons for API access, but their prices are not listed.

So the stated coverage is useful context, not enough to calculate value. Buyers should ask for seat, query, export and API limits, plus add-on and overage pricing, in writing. Without those details, teams cannot tell whether a plan fits their workflow or what it will cost as usage grows.

Harmonic’s pricing page lists no monthly or annual prices; you’ll need to contact sales. The published pricing information lists no free plan, and trial terms are not published. There’s no published price difference to calculate between the three access options.

• Console access: For teams researching companies and investors. Listed coverage includes 40 million companies, 200 million people, 250,000 investors, CSV export, and Scout AI. The price is not published.
• API access: For teams integrating company data. Seat and usage limits are not published. Financing and investor data and no-code CRM sync are listed as add-ons; their prices are not published.
• Bulk data: Listed coverage matches Console access, with delivery through S3, BigQuery, or Snowflake and weekly refreshes. The price is not published.

The pricing material also doesn’t publish overage costs. Ask sales for the quote, API caps, add-on fees, and any charges tied to usage or data delivery before comparing total cost with another provider.

The published product information does not document an import process, migration service, or export options beyond CSV export for Console access. If you’re moving company lists into Harmonic, confirm which fields can be imported and whether your existing tags, notes, and workflows can come with them; those details are not published here.

Leaving may take more planning if teams rely on API integrations, recurring Scouts, or data delivered into a warehouse. Harmonic lists API access and bulk delivery through S3, BigQuery, or Snowflake, but the published material does not specify how to retrieve data on cancellation or whether exports include your saved research and workflow history. Get those terms in writing before you build around the platform.

We don’t have Reddit posts or other user feedback in the published material, so we can’t say what typically makes customers leave. The practical decision points are unpublished pricing, unclear API limits, and the portability terms you confirm with sales.