Comparison

RB2B vs Warmly

Last updated:

R

RB2B

Intent & Signal
Bootstrapped $
vs
W

Warmly

Intent & Signal
Acquired $$$
Analyst verdict

RB2B wins on person-level identification and free-tier accessibility for SMB teams; Warmly — which HubSpot agreed to acquire in June 2026 — still wins on account-level signal depth and workflow orchestration, but is now effectively a HubSpot-first bet.

At a glance

RB2B · entry price
Free (150 company-level IDs/mo; no person-level IDs) · Starter $79/mo · Pro from $149/mo · Pro+ from $199/mo
Warmly · entry price
AI Web-Deanonymization from $10,000/yr · Inbound Chat from $20,000/yr · AI Inbound Autopilot from $30,000/yr (published)
RB2B · raised
N/A (bootstrapped)
Warmly · raised
$23M

Head-to-head by dimension

RB2B
Dimension
Warmly
Pricing transparency
RB2B: RB2B's free tier (100 person-level identifications per month as of Q1 2026) is the most generous in the category and requires no credit card. Warmly's pricing starts around $700/month for the Team tier — a significant entry cost that is justified for mid-market teams but steep for early-stage companies.
ICP fit for SMB
RB2B: RB2B is the default recommendation for companies under 50 employees with website traffic between 1,000–10,000 monthly visitors. The free tier is sufficient for most early-stage outbound motions, and the Slack-to-LinkedIn workflow requires zero infrastructure investment.
ICP fit for enterprise
Warmly: Warmly's account-level signal aggregation — combining website visits, G2 intent, Bombora B2B intent, and job change signals — is what enterprise revenue operations teams need for territory-based prioritization. RB2B's person-level alerts are tactically useful but not sufficient for account-based programs at enterprise scale.
Data quality / product depth
Warmly: Warmly enriches identified accounts with Clearbit and LinkedIn data, overlays third-party intent signals, and scores accounts based on composite visit-plus-intent patterns. RB2B's identification accuracy is high for person-level matching but the enrichment layer beyond name and LinkedIn profile is thin compared to Warmly's stack.
Integration breadth
Warmly: Warmly integrates natively with Salesforce, HubSpot, Outreach, Salesloft, and Slack with bidirectional record sync. RB2B's primary integration surface is Slack alerts and a Zapier connection; CRM sync is webhook-based and requires configuration.
AI-native features
Warmly: Warmly added AI-driven account prioritisation in 2025 that scores inbound intent signals and surfaces the highest-probability accounts for SDR outreach. Since the HubSpot acquisition closed on June 30, 2026 that roadmap has been folded into HubSpot's own agent packaging, which was itself repackaged in July 2026 when Breeze was retired in favour of Agent Hub. RB2B's AI remains limited to identity-matching accuracy — no generative or scoring layer.
Time to value
RB2B: RB2B's JavaScript snippet installs in under 5 minutes and surfaces first person-level identifications within 24 hours of going live. Warmly's onboarding, including intent signal configuration, CRM sync, and SDR routing rules, typically takes 1–2 weeks with implementation support.
Total cost of ownership
RB2B: For companies under 100 employees, RB2B's free-to-$149/month range is materially cheaper than Warmly's $700/month floor. The question is whether Warmly's signal depth generates enough incremental pipeline to justify the 4–5x cost premium — for teams with active SDRs and an ABM motion, the answer is frequently yes.

Reference data

Dimension RB2B Warmly
Pricing tier $ $$$
Entry price Free (150 company-level IDs/mo; no person-level IDs) · Starter $79/mo · Pro from $149/mo · Pro+ from $199/mo AI Web-Deanonymization from $10,000/yr · Inbound Chat from $20,000/yr · AI Inbound Autopilot from $30,000/yr (published)
Funding stage Bootstrapped Acquired
Total raised N/A (bootstrapped) $23M
Valuation N/A Undisclosed
Target segment SMB and mid-market B2B companies with meaningful inbound web traffic who want to convert anonymous visitors into named outreach targets Mid-market B2B SaaS companies with 5,000+ monthly website visitors running inbound-assisted outbound and willing to pay for automated follow-through on intent signals
Founded 2024 2020

When to choose which

Choose RB2B if…

– You are pre-Series A with under 1,000 daily website visitors and want to identify and immediately reach out to high-intent visitors without a CRM workflow.
– Your primary outbound motion is founder-led or SDR-led LinkedIn DM outreach triggered by real-time Slack alerts — RB2B’s Slack-first architecture is purpose-built for this.
– You want to validate the person-level deanonymization use case before committing budget to a mid-market intent platform.
– Your team has no RevOps operator to configure a Warmly integration with your CRM and intent data sources.

Choose Warmly if…

– Acquisition update (Jun 30, 2026): HubSpot agreed to acquire Warmly (terms undisclosed; close not yet confirmed). Expect the roadmap and packaging to prioritize HubSpot CRM; if you run Salesforce or another CRM, treat standalone availability as uncertain before committing.

– You are a Series B or later company with a dedicated SDR team, an ABM motion, and a Salesforce or HubSpot instance that needs account-level signal enrichment to prioritize outreach.
– Your website traffic exceeds 10,000 monthly unique visitors and RB2B’s identification volume caps are constraining your workflow.
– You are already buying Bombora or G2 intent data separately and want to consolidate those signals with website identification in a single platform.
– You need SDR routing rules, territory-based account assignment, and CRM activity logging from website intent signals — features RB2B does not support.

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