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Head-to-head · Data Enrichment Software

OpenGTM vs 6sense

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score OpenGTM #2 in Data Enrichment Software 9.2/10 Free plan Free plan✓ 3 of 3 features Visit OpenGTM
6sense #4 in Data Enrichment Software 9.0/10 Pricing on request ✓ 1 of 3 features Visit 6sense

OpenGTM leads on 1 check, 6sense on 0, and 3 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreOpenGTM · 9.2/10
  • Free planonly OpenGTM
  • Most featuresOpenGTM · 3 of 3

OpenGTM scores higher on our rubric for data enrichment software: 9.2 against 9.0 out of 10; our editors rank them #2 and #4.

OpenGTM offers free plan; 6sense doesn't.

OpenGTM is the better fit for open-source enrichment waterfalls and workflows. 6sense is the better fit for intent-led account and buyer enrichment.

  • OpenGTM fits best

    Open-source enrichment waterfalls and workflows

  • 6sense fits best

    Intent-led account and buyer enrichment

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 OpenGTM 9.2/10 Visit ↗ 6sense 9.0/10 Visit ↗
At a glance
Editor score 9.2 9.0
Ranking #2 in Data Enrichment Software #4 in Data Enrichment Software
Best for Open-source enrichment waterfalls and workflows Intent-led account and buyer enrichment
Pricing model Free Paid
Starting price Free plan —
Free plan ✓ (best) —
Free trial — —
Deployment Self-hosted, Browser extension Cloud, Browser extension
Platforms Web, Chrome extension Web, Chrome extension
Support Docs Docs
Integrations 10 integrations 15 integrations
Built for Small business, Mid-market, Enterprise Mid-market, Enterprise
Features OpenGTM 3/3 · 6sense 1/3
API access ✓ ✓
CRM sync ✓ (best) Not checked yet
Waterfall enrichment ✓ (best) Not checked yet
Specs
Enrichment types email, phone, firmographic, technographic, hiring, social, identity Not checked yet
Monthly credits Not checked yet Not checked yet
Data freshness Not checked yet Not checked yet
Our review
Pros
  • Sequential waterfalls with provider ordering and confidence-based early exit
  • Broad enrichment across contact, company, social, technology, and buying signals
  • REST API, MCP, webhooks, n8n, CRM, spreadsheet, and sequencer outputs
  • Combines company, people, intent, technographic, and persona data
  • Supports predictive scoring, buying-group discovery, and AI-assisted recommendations
  • Exports to major CRMs, sales tools, CSV, and enrichment APIs
Cons
  • Requires users to run the software on their own infrastructure
  • Users must supply provider keys for connected enrichment and AI services
  • Third-party enrichment and AI charges are paid separately to providers
  • Pricing requires a sales conversation rather than self-serve purchase
  • Its broad scope may exceed teams needing only contact lookup
  • Advanced value depends on account, intent, and predictive workflows
Our verdict

OpenGTM is an AGPLv3-licensed, self-hosted GTM platform for sourcing leads, enriching company and contact records, researching accounts with AI, tracking buying signals, and routing results to sales tools. It is aimed at teams that want…

Read the review →

6sense is a B2B revenue intelligence and sales intelligence platform for marketing and sales teams focused on account-based growth. It combines company and people search with buyer and account data acquisition, verified email and…

Read the review →
  1. OpenGTMData Enrichment Software 9.2Free plan
  2. 6senseData Enrichment Software 9.0Pricing on request

Strengths and trade-offs

  • OpenGTM — where it wins

    • Sequential waterfalls with provider ordering and confidence-based early exit
    • Broad enrichment across contact, company, social, technology, and buying signals
    • REST API, MCP, webhooks, n8n, CRM, spreadsheet, and sequencer outputs

    Where it doesn't

    • Requires users to run the software on their own infrastructure
    • Users must supply provider keys for connected enrichment and AI services
    • Third-party enrichment and AI charges are paid separately to providers

  • 6sense — where it wins

    • Combines company, people, intent, technographic, and persona data
    • Supports predictive scoring, buying-group discovery, and AI-assisted recommendations
    • Exports to major CRMs, sales tools, CSV, and enrichment APIs

    Where it doesn't

    • Pricing requires a sales conversation rather than self-serve purchase
    • Its broad scope may exceed teams needing only contact lookup
    • Advanced value depends on account, intent, and predictive workflows
  • OpenGTM9.2/10 · Free plan

    A flexible open-source choice for enrichment waterfalls, AI research, and workflow routing.

    Visit OpenGTMFull verdict →
  • 6sense9.0/10 · Pricing on request

    A broad enrichment and intent platform for teams prioritizing account-level buying signals.

    Visit 6senseFull verdict →

More comparisons

All data enrichment software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update