How we make this list: we compare pricing pages, product documentation and public user reviews. Ratings come from G2, Capterra or Trustpilot, with the date we checked them.
Key takeaways
- RB2B identifies website visitors at the person level, but only for US traffic, and its alternatives vary widely in depth, coverage, and price.
- Warmly is the closest full replacement, with person-level identification plus AI chat, email, and ads in one platform.
- Dealfront, now Leadfeeder, is the best pick for global and European coverage with GDPR-native company identification.
- Lead Forensics is the best established company-level pick, with real-time alerts and routing to the right rep.
- Snitcher is the best startup pick, with real-time intent, CRM triggers, and GDPR compliance.
- Leadinfo is the best budget all-in-one pick, revealing companies in real time plus decision-maker contacts and multichannel outreach.
- Koala is the best pick for product-led teams, combining visitor signals with fit and intent scoring.
- 6sense is the best enterprise pick, with revenue intelligence across the full buying journey.
- Apollo is the best database pick, with 240 million contacts and 30 million accounts plus website visit signals.
Quick comparison
| Tool | Best for | Starting price | Free plan |
|---|
 Warmly | Full replacement | See website | No |
 Dealfront | Global coverage | See website | Free plan |
 Lead Forensics | Company identification | See website | No |
 Snitcher | Startup outbound | See website | Free trial |
 Leadinfo | Budget all-in-one | See website | Free account |
 Koala | Product-led teams | See website | Free plan |
 6sense | Enterprise ABM | See website | Free plan |
 Apollo | Prospecting database | See website | Free plan |
Is your product missing or out of date?
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
The best RB2B alternatives
#1Warmly
Best for: Full replacement4.5/5 on
G2 (250 reviews, checked Oct 2026)
Visit warmly.ai
Starting priceSee website
Free planNo
Warmly is the closest full replacement. Its homepage describes autonomous revenue agents for B2B that de-anonymize website visitors at the person level, engage them across chat, email, LinkedIn ads, and Meta ads, and nurture them until they are ready to buy. Two agents cover the funnel: a TAM agent that breaks down your market into scored accounts, maps buying committees, and runs coordinated email and ads, and an Inbound agent that identifies visitors at the person level, runs AI chat with full context from the Context Graph, shows smart popups based on intent, and builds personalized microsites. Warmly reports a 4.8 out of 5 rating from 200 plus reviews and GDPR compliance, and even announces an integration with RB2B on its homepage.
The trade-off is price. Comparison sources cite Warmly paid plans from 15,000 dollars per year, so it suits teams with real pipeline targets. For teams that want person-level identification plus autonomous outreach in one platform, Warmly is the best pick.
What we like- Person-level visitor identification
- AI chat, email, and ads in one platform
- Context Graph unifies every signal
Watch out for- Enterprise pricing in comparison sources
- More platform than small teams need
Starting priceSee website
Free planFree plan
Dealfront is the best pick for global and European coverage. Its homepage announces that Dealfront is now Leadfeeder, with the same solutions and team under a new brand, and describes a fast track to a high-quality pipeline. Features include building audiences with firmographic and intent filters, revealing ICP-match companies already visiting your website, prioritizing ICP accounts by page views, time spent, and gated content requests, and notifying sales in real time via Slack or email. The database covers 60 million companies and 400 million verified contacts, with 100 plus advanced filters and 40 plus real-time buying signals. Dealfront reports up to 3x more ICP accounts identified and up to 75 percent less prospecting time, and is GDPR compliant, built and hosted in the EU.
The catch is identification depth. Dealfront identifies companies, not individual people, so outreach targets the account, not a named visitor. For teams with international traffic or strict privacy requirements, Dealfront is the best pick.
What we like- GDPR-native, built and hosted in the EU
- 60 million companies and 400 million verified contacts
- 40 plus real-time buying signals
Watch out for- Company-level, not person-level
- Brand transition to Leadfeeder may confuse buyers
Starting priceSee website
Free planNo
Lead Forensics is the best established company-level pick. Its homepage describes turning anonymous B2B website traffic into revenue, discovering which companies are researching you and converting them before competitors do. Features include real-time alerts when a target business lands on your domain, automatic routing to the right sales rep for immediate follow-up, demand capture for marketing teams, and account management use cases including upsell, cross-sell, and win-back alerts when lapsed customers revisit. Lead Forensics notes that 98 percent of traffic never converts, and positions its tool as the way to stop leaking those leads.
The trade-off is price and depth. Lead Forensics identifies companies, not people, and comparison sources cite pricing around 800 dollars per month. For teams that want a proven company-level tool with strong alerting, Lead Forensics is the best pick.
What we like- Long established in visitor identification
- Real-time alerts when target accounts land
- Automatic routing to the right rep
- Account management use cases
Watch out for- Company-level only
- Pricing by quote, with comparison sources citing around 800 dollars per month
Starting priceSee website
Free planFree trial
Snitcher is the best startup pick. Its homepage describes uncovering hidden website visitors, turning anonymous intent into predictable revenue by identifying in-market companies, seeing what they want, and triggering action across your stack. The platform connects the full journey from anonymous visit to closed deal, so teams identify the right accounts, act at the right time, and prove what is driving revenue. Snitcher is GDPR compliant, offers a free trial with no credit card required, and lists customers including Tacto, Entain, Clay, and Lemlist.
The catch is depth. Snitcher identifies companies, not individual people, so outreach still needs enrichment to reach a named contact. For startups that want fast, real-time company identification with CRM triggers, Snitcher is the best pick.
What we like- Turns anonymous intent into predictable revenue
- Real-time identification and action triggers
- GDPR compliant
- MCP server for AI workflows
Watch out for- Company-level only
- Newer brand with less review history than Lead Forensics
#5Leadinfo
Best for: Budget all-in-one4.3/5 on
G2 (836 reviews, checked Oct 2026)
Visit leadinfo.com
Starting priceSee website
Free planFree account
Leadinfo is the best budget all-in-one pick. Its homepage describes knowing which company visits your website, starting identification and reaching out within the same platform, with a 4.8 rating from 330 plus reviews and trust from 8,000 plus businesses. Features include revealing the most interested companies in real time, revealing decision-maker contact details, building multichannel outreach campaigns across email and LinkedIn, and connecting to your CRM, with 70 plus native integrations including Salesforce, HubSpot, Pipedrive, and Microsoft Dynamics. Leadinfo uses AI algorithms and automatic bot detection to filter irrelevant traffic, and offers a free account to start.
The trade-off is identification depth. Leadinfo identifies companies and surfaces decision-makers, but does not claim person-level matching of individual visitors. For budget teams that want identification plus outreach in one subscription, Leadinfo is the best pick.
What we like- Reveals companies in real time
- Decision-maker contact details
- Multichannel outreach campaigns in the same platform
- 70 plus integrations
Watch out for- Company-level identification
- Pricing varies by market and traffic volume
Starting priceSee website
Free planFree plan
Koala is the best pick for product-led teams. Its homepage describes agentic AI that helps reps prioritize the most meaningful signals, qualify accounts, and maintain engagement from contact to close. Features include unifying 30 plus signal sources and 30 plus enrichment sources, native connections to your CDP, warehouse, and product analytics, account fit and intent scoring, play ROI reporting and conversion analytics, a unified view of AI-enriched pre-qualified leads, waterfall enrichment and custom research on every lead, and sending emails directly from Koala or through every major sales engagement platform. Koala reports a 5.0 rating on G2 and a generous free plan, with customers including Sanity, Retool, Mintlify, and Deepgram.
The catch is domain confusion. The old koala.app domain now shows a GoDaddy for-sale page, so buyers should use getkoala.com. For product-led teams that want visitor signals combined with product usage and scoring, Koala is the best pick.
What we like- Unifies first-party and third-party signals
- Account fit and intent scoring
- Waterfall enrichment
- Auto outbound campaigns
Watch out for- Platform breadth can overwhelm small teams
- Old koala.app domain is now for sale, use getkoala.com
#76sense
Best for: Enterprise ABM4.2/5 on
G2 (1,484 reviews, checked Oct 2026)
Visit 6sense.com
Starting priceSee website
Free planFree plan
6sense is the best enterprise pick. Its homepage describes intelligence for agentic go-to-market, turning every signal, yours and theirs, into intelligence every team, tool, and AI agent can act on and trust. Features include RevvyAI conversational AI grounded in account context, buyer signals, intent, and activity, an Intelligent Workflows engine that turns AI signals into automated omni-channel plays across ads, email, web, and sales, and AI Email Agents that generate, send, and reply to emails grounded in real-time buyer signals and brand voice. 6sense positions itself as the ABM platform powered by revenue intelligence, with intent data and account scoring across the full funnel.
The trade-off is price and complexity. Comparison sources cite 6sense from 60,000 dollars per year, so it suits enterprises running full-funnel ABM. For large teams that need intent, scoring, and orchestration at scale, 6sense is the best pick.
What we like- Revenue intelligence across the full buying journey
- Signalverse data from 150 plus sources in comparison sources
- RevvyAI conversational intelligence
- AI email agents
Watch out for- Enterprise pricing in comparison sources, from 60,000 dollars per year
- Overkill for small teams
#8Apollo
Best for: Prospecting database4.7/5 on
G2 (9,847 reviews, checked Oct 2026)
Visit apollo.io
Starting priceSee website
Free planFree plan
Apollo is the best database pick. Its homepage describes an AI go-to-market system for go-to-market teams, used by over 600,000 companies, with prospecting, outreach, and dialing in one workspace. Features include a unified profile for every contact and account, buying signals including intent, job changes, and website visits, waterfall enrichment for more complete records, AI agents that research accounts, prioritize leads, write outreach, follow up, and book meetings, and deliverability tools including domain warming, inbox rotation, and reputation monitoring. Apollo reports 240 million plus contacts and 30 million plus accounts, with SOC 2 Type II and ISO 27001 certifications and GDPR, CAN-SPAM, DNC, and CCPA compliance support.
The catch is focus. Apollo is a prospecting database with website visit signals, not a dedicated visitor identification tool, so match rates and identification depth differ from purpose-built tools. For teams that want a large database plus sequencing plus visit signals in one system, Apollo is the best pick.
What we like- 240 million contacts and 30 million accounts
- Website visit buying signals
- AI agents that research, build lists, write outreach, and book meetings
- 200 plus integrations
Watch out for- Visitor identification is one signal among many, not the core product
- Enterprise features priced by quote
How we chose
We compared tools that replace RB2B across its core job: turning anonymous website traffic into outreach-ready leads. Each vendor homepage was opened to confirm the product exists today and matches its category, and we kept a mix of person-level tools, company-level tools, budget picks, and enterprise platforms, since RB2B users range from solo founders to enterprise sales teams. We flagged domain changes where they matter: Dealfront is now Leadfeeder, and Koala's correct domain is getkoala.com, not the for-sale koala.app. Pricing is written as See website where vendors price by quote or on pricing pages not shown on the homepage, and comparison-source figures are labeled as such.
Using visitor identification responsibly
Person-level identification raises real privacy questions, and buyers should treat it carefully. Company-level identification is the safer default: it tells you which organization visited, not which individual, and it avoids the consent and compliance risks that come with matching anonymous visitors to personal emails. If you use person-level tools, check your privacy policy, your cookie consent banner, and your legal obligations under GDPR, CCPA, and CAN-SPAM before sending outreach, and honor opt-outs immediately.
Outreach quality matters as much as identification accuracy. A visitor who read one blog post is not a hot lead, so route low-intent visits to nurture, not to a cold pitch. Reserve direct outreach for accounts that show repeated, high-intent behavior, such as pricing page visits, repeated visits, or multiple people from the same company engaging. Finally, never use visitor identification to evade consent rules, stalk individuals, or send deceptive messages that pretend a visitor asked to be contacted when they did not.
Frequently asked questions
What is the closest alternative to RB2B?
Warmly is the closest full replacement, with person-level identification plus AI chat, email, and ads. For company-level identification with global coverage, Dealfront is the closest alternative.
Which RB2B alternative is cheapest?
Leadinfo, Koala, 6sense, Dealfront, and Apollo all offer free plans or free accounts, with paid pricing by quote or traffic volume. For paid company-level tools, Snitcher is cited in comparison sources from around 79 dollars per month.
Does any alternative identify visitors outside the US?
Yes. Dealfront is GDPR-native and built for European and global coverage, and Lead Forensics, Snitcher, and Leadinfo all serve international markets. RB2B's person-level matching is US focused, which is a key reason teams switch.
Is person-level visitor identification legal?
It depends on your jurisdiction, your privacy policy, your consent banner, and how you use the data. Company-level identification is generally lower risk than person-level matching, and you should confirm compliance with GDPR, CCPA, and CAN-SPAM before sending outreach based on identified visitors.
Do these tools replace a CRM?
No. Most tools integrate with CRMs including Salesforce, HubSpot, and Pipedrive, and route identified visitors into existing workflows. Apollo is the closest to a full system, with prospecting, outreach, and dialing in one workspace.
How accurate is visitor identification?
Match rates vary by traffic source, company size, and data provider, and vendors rarely publish audited figures. Treat identification as a prioritization signal, not a guarantee, and verify contacts before sending outreach.
Sources we checked (8)
- https://warmly.ai
- https://dealfront.com
- https://www.leadforensics.com
- https://snitcher.com
- https://www.leadinfo.com
- https://getkoala.com
- https://6sense.com
- https://www.apollo.io
Is your product missing or out of date?
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
Shihab Mia · Founder, Rankite
Shihab has 5+ years in B2B and SaaS SEO. He writes Rankite's software buying guides from pricing pages, documentation and public user reviews. More about Shihab.