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Head-to-head · Startup Databases

Harmonic vs FlareSight

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score Harmonic #4 in Startup Databases 8.8/10 Pricing on request ✓ 0 of 5 features Visit Harmonic
FlareSight #8 in Startup Databases 8.3/10 Free plan Free plan✓ 5 of 5 features Visit FlareSight

Harmonic leads on 0 checks, FlareSight on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreHarmonic · 8.8/10
  • Free planonly FlareSight
  • Most featuresFlareSight · 5 of 5

Harmonic scores higher on our rubric for startup databases: 8.8 against 8.3 out of 10; our editors rank them #4 and #8.

Harmonic is the better fit for founder discovery and data enrichment workflows. FlareSight is the better fit for U.S. funding research on a smaller budget.

  • Harmonic fits best

    Founder discovery and data enrichment workflows

  • FlareSight fits best

    U.S. funding research on a smaller budget

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Harmonic 8.8/10 Visit ↗ FlareSight 8.3/10 Visit ↗
At a glance
Editor score 8.8 8.3
Ranking #4 in Startup Databases #8 in Startup Databases
Best for Founder discovery and data enrichment workflows U.S. funding research on a smaller budget
Pricing model Paid Free plan + paid
Starting price — $24/mo
Free plan Not checked yet ✓ (best)
Free trial — —
Deployment Cloud, Browser extension Cloud
Platforms Web, Chrome extension Web
Support Email, Docs Email
Built for Mid-market, Enterprise Solo, Small business, Mid-market
Features Harmonic 0/5 · FlareSight 5/5
Company profiles Not checked yet ✓ (best)
Funding data Not checked yet ✓ (best)
Founder profiles Not checked yet ✓ (best)
Advanced search Not checked yet ✓ (best)
Saved alerts Not checked yet ✓ (best)
Specs
Export access Not checked yet Api
Company records Not checked yet 126812
Our review
Pros
  • Searches company and people data with firmographic and funding context
  • Combines APIs, workflow integrations, bulk delivery, and warehouse destinations
  • Tracks hiring, leadership, and funding changes with network mapping and Scout AI
  • SEC Form D filings are ingested within 24 hours
  • Detailed filters cover sector, stage, geography, and funding
  • Free plan includes all search filters and weekly alerts
Cons
  • Pricing requires contacting sales
  • CRM sync and Scout via API are paid add-ons to API access
  • Financing and investor data are an add-on to Bulk data
  • Coverage is limited to U.S. startups
  • API access is available only on the Pro plan
  • Free users get 5 company profile views per day
Our verdict

Harmonic is a startup intelligence and account-enrichment platform for venture capital, growth capital, corporate development, platform, and go-to-market teams. It brings together company and people search, company and person enrichment,…

Read the review →

FlareSight is a startup funding intelligence platform for sales teams, recruiters, investors, researchers, and founders. It indexes U.S. SEC Form D filings and provides searchable records for funding rounds, sectors, locations, founders,…

Read the review →
  1. HarmonicStartup Databases 8.8Pricing on request
  2. FlareSightStartup Databases 8.3Free plan

Strengths and trade-offs

  • Harmonic — where it wins

    • Searches company and people data with firmographic and funding context
    • Combines APIs, workflow integrations, bulk delivery, and warehouse destinations
    • Tracks hiring, leadership, and funding changes with network mapping and Scout AI

    Where it doesn't

    • Pricing requires contacting sales
    • CRM sync and Scout via API are paid add-ons to API access
    • Financing and investor data are an add-on to Bulk data

  • FlareSight — where it wins

    • SEC Form D filings are ingested within 24 hours
    • Detailed filters cover sector, stage, geography, and funding
    • Free plan includes all search filters and weekly alerts

    Where it doesn't

    • Coverage is limited to U.S. startups
    • API access is available only on the Pro plan
    • Free users get 5 company profile views per day
  • Harmonic8.8/10 · Pricing on request

    A broad startup intelligence stack spanning search, enrichment, monitoring, APIs, and bulk data.

    Visit HarmonicFull verdict →
  • FlareSight8.3/10 · Free plan

    A focused U.S. startup database with useful filters, alerts, and low-cost paid tiers.

    Visit FlareSightFull verdict →

More comparisons

All startup databases comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update