6sense and TheirStack both help B2B teams identify companies that are adopting or investing in specific technologies — but they take fundamentally different approaches. 6sense is an enterprise ABM orchestration platform. TheirStack is a focused, self-serve technographic and job data platform.
Quick Decision Guide
Choose TheirStack if
- ✓You want transparent, traceable intent signals from actual job postings
- ✓You need a self-serve platform with transparent pricing — no $50K+/year commitment
- ✓You want one-time purchases available — buy credits without any subscription or annual contract
- ✓You want real-time job data alongside technographic intelligence
- ✓You need a developer-first API with 40+ filters and sub-second response times
- ✓You're a startup or growth-stage team that needs focused technographic data
- ✓You want to explore data for free before committing to a paid plan
Choose 6sense if
- ✓You need a full ABM orchestration platform with campaign management
- ✓You want AI-powered predictive analytics for account scoring
- ✓You need anonymous buyer journey tracking across the web
- ✓You require intent data from B2B publisher networks (not just hiring signals)
- ✓Your budget supports $50K+/year and you have a dedicated ABM team
Feature comparison
Access & Pricing
| Feature | TheirStack | 6sense |
|---|---|---|
| Access | ✓Self-serve API + UI | Enterprise sales-led |
| Pricing | ✓Free tier + plans from $59/mo, one-time purchases available | ~$50K+/year, annual contracts only |
| Time to value | ✓Minutes (self-serve signup) | Weeks/months (enterprise onboarding) |
Data & Capabilities
| Feature | TheirStack | 6sense |
|---|---|---|
| Jobs API | ✓Yes — real-time, 40+ filters | No |
| Technographics | Job-based detection (frontend + backend) | AI-based detection (30K+ technologies) |
| Intent signals | Hiring intent from job postings | Anonymous web browsing + B2B publisher network |
| ABM orchestration | No — focused on data | ✓Yes — full campaign management |
| Predictive analytics | No | ✓Yes — AI-powered account scoring |
| Signal transparency | ✓Fully traceable to job postings | AI/ML model (black box) |
Integration & Developer Experience
| Feature | TheirStack | 6sense |
|---|---|---|
| API response time | ✓100ms–2s | N/A (not an API-first product) |
| Documentation | ✓Public, self-serve | Enterprise access only |
| Webhooks | ✓Yes — real-time notifications | Limited |
| CRM integration | API + webhooks (any CRM) | Deep Salesforce/HubSpot integrations |
What is 6sense?
6sense is an AI-powered account-based marketing (ABM) platform that helps enterprise B2B teams identify in-market accounts through anonymous buyer intent signals, predictive analytics, and technographic data. It tracks buyer behavior across the web to predict which accounts are most likely to purchase.
TheirStack takes a fundamentally different approach. Instead of using AI models to predict intent from anonymous web behavior, we analyze millions of real job postings to surface concrete hiring signals and technology adoption data.
Intent data: two different approaches
6sense detects intent by tracking anonymous web browsing behavior across a network of B2B publisher sites. When someone from Company X reads articles about "cloud migration," 6sense flags that company as showing intent.
TheirStack provides hiring intent — a more direct and verifiable signal. When a company posts 5 job listings for Kubernetes engineers, that's an observable action indicating active investment. You can click through to the actual job posting to understand exactly what the company is looking for.
Both approaches have value, but TheirStack's signals are transparent and traceable rather than derived from opaque AI models.
Pricing and accessibility
- 6sense typically costs $50,000+/year, targeting large enterprise organizations
- Access requires a sales process, demos, and significant onboarding
- Getting full value requires a dedicated ABM team and marketing operations resources
TheirStack offers a free tier with 50 company credits/month, with paid plans from $59/month. You can also buy credits as a one-time purchase — no subscription or annual commitment needed. Sign up, test the API, and start getting value in minutes.
Technographic coverage
6sense tracks 30,000+ technologies using AI-based detection methods. TheirStack detects technologies from job postings, which uniquely captures backend and internal tools — databases, DevOps platforms, ERPs, programming languages — that web-scanning methods miss.
The key difference: TheirStack shows you why a company appears to use a technology (the job posting mentions it), while 6sense's detection methodology is less transparent.
Job data
6sense does not provide job data. TheirStack gives you real-time access to job postings from 323k sources with 40+ filters, built-in deduplication, and webhooks for instant notifications. This job data is valuable for:
- Understanding hiring trends and company growth signals
- Identifying companies investing in specific technologies
- Tracking competitive intelligence through hiring patterns
UI and contact data integrations
- Beyond the API, TheirStack provides a rich UI where you can run company and job searches and quickly find people contacts from selected companies.
- We integrate with leading contact data providers (Apollo, ContactOut) and LinkedIn (Free, Recruiter, Sales Navigator) to streamline outreach from search results.
When to choose each
Choose 6sense if you're an enterprise organization with a dedicated ABM team, need predictive analytics and campaign orchestration, and can invest $50K+/year in a full-stack ABM platform.
Choose TheirStack if you need focused technographic intelligence with transparent hiring intent signals, prefer self-serve access with developer-friendly APIs, or want to start small and scale based on actual value delivered.