Bombora
Bombora owns the B2B intent data category. Its Company Surge product tracks which companies are researching specific topics (8k+ intent topics) by monitoring content consumption across a co-op of 4k+ B2B publisher sites. When a company spikes on a topic (e.g., 'data warehouse migration'), Bombora surfaces it as a surge signal. Intent data is sold to ZoomInfo, Demandbase, and others (Bombora powers most intent products), but you can also buy it directly.
Official site ↗Why it ranks here
Bombora ranks 7th because it is intent-only (no contact data, no firmographics). If you need intent signals and already own ZoomInfo or Apollo for contact data, Bombora is the cleanest buy. If you want an all-in-one ABM platform, 6sense or Demandbase are better.
Where it sits
Bombora sits at rank 7 as the pure-play intent leader. It competes with 6sense and Demandbase on data quality but wins on simplicity (no platform bloat). Most teams choose between bundled intent (ZoomInfo + Bombora) or standalone Bombora depending on contract flexibility.
How GTM Engineering teams use it
GTM engineers sync Bombora Company Surge scores into Salesforce (via native integration or CSV export) and use them to prioritize accounts, trigger sequences, or score leads. Common workflow: Bombora flags intent → Clay enriches contact data → Salesloft sends sequences. Teams also use Bombora data in ad targeting (LinkedIn, display) and account-based marketing (Marketo, Pardot).
In-depth notes
Pricing is enterprise-only with annual contracts. Intent data is delivered via API, CSV export, or native Salesforce integration. Data freshness is weekly (surge scores update regularly). Be aware: Bombora is a co-op; participating sites share their traffic data in exchange for access to the network. If you publish B2B content, you can join the co-op and get access (conditional on traffic volume). Intent accuracy depends on IP-to-company resolution; small companies and VPN users are often misidentified.
Best for
Account-based selling, mid-market and enterprise B2B, and teams that already own contact data but need intent signals.
Avoid if
You need contact data (Bombora does not provide it), target SMBs (intent signals are noisy for small companies), or have low budget (Apollo bundles basic intent for free).
The rest of Data providers
Apollo Leader All-in-one data + outreach platform with 230M+ contacts, built-in sequences, and free tier for solo reps. #2 
ZoomInfo Leader Enterprise B2B data standard with 100M+ contacts, deepest US firmographics, and technographic + intent layers. #3 
Cognism Leader EMEA-focused B2B data provider with GDPR-compliant mobile coverage (Diamond Data) and strong UK/EU accuracy. #4 
Lusha Strong SMB-friendly B2B data provider with simple UI, Chrome extension, and good mid-market contact coverage. #5 
LeadIQ Situational Prospecting workflow tool with Chrome extension, contact data, and one-click Salesforce sync. #9 
RocketReach Situational Personal email finder with 700M+ profiles, strong coverage of executives, influencers, and passive candidates. #10 
Seamless.AI Situational Real-time contact finder with Chrome extension, strong coverage of direct dials, and aggressive UI. #11 
Hunter.io Situational Email finder and domain search tool with 100M+ email addresses, simple UI, and generous free tier. #12 
Demandbase Situational ABM platform with intent data, advertising, and account intelligence for enterprise B2B sales teams. #13 
Kaspr Niche LinkedIn Chrome extension for GDPR-compliant B2B contact data, strong in EMEA, simple UI. #14 Learning guide
Setup
Contact Bombora sales for trial access (no self-serve), select 10-15 intent topics from their 8000-topic library that match your ICP research behavior (e.g., business intelligence, data visualization, cloud analytics), then configure Salesforce integration or CSV export cadence before first surge data arrives.
First thing to build
Export Company Surge report for one high-value intent topic (e.g., data warehouse migration), filter to accounts with surge score above 65 and sustained surge for 2+ weeks, then enrich with Apollo or ZoomInfo contact data and load into a targeted Outreach sequence to test conversion lift against non-intent baseline accounts.
What actually matters
- Select intent topics that map to early-stage buyer research (problem awareness, solution exploration) not late-stage (vendor comparison, pricing); early-stage topics give you 4-6 week lead time before RFP, late-stage topics arrive too late
- Set surge score threshold at 65+ for outbound triggers and 80+ for high-priority account routing; lower thresholds generate too many false positives (accounts browsing, not buying)
- Integrate Bombora surge data into Salesforce via native connector or weekly CSV import, map to custom Account fields (Intent_Topic__c, Surge_Score__c, Surge_Start_Date__c), then build Process Builder or Flow to auto-create tasks or update account scores
- Monitor surge duration (weeks in surge state) not just peak score; accounts that sustain high scores for 3+ weeks convert 2-3x better than single-week spikes
Watch out
Bombora intent signals are account-level only (company IP resolution) and cannot identify which person or department is researching; if you target the wrong contact at a surging account, conversion rates drop to baseline despite the intent signal.