Warmly alternatives, from visitor ID tools to outbound beyond your website

What Warmly does

Warmly works on your website traffic. It identifies visiting companies and, where it can, the people behind a visit, adds context from intent and CRM data, and helps your team act while the interest is fresh: alerts to the right rep, live chat on the page and automated follow-up. It also supports account-based marketing programs aimed at known target accounts.

It fits B2B companies with steady traffic from their target market, a sales team ready to respond quickly, and pages that attract buyers, such as pricing, comparisons and demo requests. The more qualified traffic you have, the more it has to work with.

Warmly is joining HubSpot: what to check before you buy or renew

In mid-2026, Warmly's co-founder and CEO announced that Warmly is joining HubSpot, and trade press such as CMSWire reported it as an acquisition meant to strengthen HubSpot's AI sales agents. HubSpot already owns Clearbit, a deal it completed in 2023, and sells Breeze Intelligence for data enrichment and buyer intent inside its CRM.

The sources we checked do not say how long Warmly will be sold on its own or what happens to its integrations with other CRMs. The right move depends on your stack:

• You run HubSpot. The deal may bring visitor intent and outreach agents closer to your CRM. Ask what will be included in your HubSpot tier, and when.
• You run Salesforce or another CRM. Ask for written commitments on the integration you depend on, and keep the contract term short enough to switch if support changes.
• You are mid-contract. Ask whether price and terms carry over at renewal, and which company will process your visitor data afterward.
• You are just starting. Compare the HubSpot route with the independent tools on this page before you commit to a long plan. Warmly lists its current plans on its pricing page.

Reasons teams compare Warmly alternatives

• They only need identification. If you want a list of visiting companies or a Slack alert and nothing more, a simpler visitor ID tool can do that job.
• Traffic is low. Visitor-based tools can only work with the people who reach your site, and early-stage companies often do not have enough of them.
• Privacy rules differ by region. Person-level identification tools typically focus on US visitors. For a European audience, company-level identification is the more common approach; check the rules that apply to you.
• Enterprise scale. Large marketing teams running account-based programs across thousands of accounts may want a full ABM platform.
• CRM direction. With Warmly moving into HubSpot, teams on other CRMs want to know their options before the next renewal.

How much warm traffic do you actually have?

Run this estimate before buying any visitor-based tool. The three profiles below are invented, and every percentage is an assumption: replace them with your own analytics. Start from monthly visits, remove existing customers, job seekers, students and competitors, assume a tool ties a third of the remaining visits to a company, and assume one in four of those companies fits your ideal customer profile.

What the numbers mean for you

For the growth-stage team, a few hundred fitting accounts a month is real material, and a visitor tool with a rep to work it can pay for itself. For the seed-stage founder or the agency, 50 accounts a month, many of them early in their research, will not produce ten meetings. Those teams need demand from outside their own website, which is what signal-based outbound provides.

To judge the result, divide the monthly cost of the tool, plus the rep time it needs, by the meetings it produced. Our breakdown of what an SDR really costs shows how to price that rep time honestly.

Warmly alternatives, compared

Startories: find buyers before they reach your site

Startories watches Reddit, X, Product Hunt, startup and industry directories, and search results built for your niche for signals such as a team searching for an alternative to a tool it uses, a funding round or a new hire. Each company is checked against your ideal customer profile and scored with written reasons. The decision-maker's business email is verified, and the email that goes out mentions the event that triggered it. Sending, follow-ups and reply sorting are included.

• Best for: small B2B teams whose website traffic is too low to fill a pipeline on its own.
• Limits: no website visitor identification, no chat and no ad audiences. Email is the only outreach channel.

HubSpot buyer intent: if you already live in HubSpot

HubSpot sells buyer intent features as part of its AI tools, alongside Breeze Intelligence enrichment. For a HubSpot customer, checking what you already pay for is the cheapest first step, and HubSpot is also where Warmly's capabilities are headed.

• Best for: teams already on HubSpot that want intent data without adding another vendor.

RB2B: person-level alerts for US traffic

RB2B identifies individual visitors to your website, with a focus on US traffic, and sends their profiles to Slack so a rep can follow up.

• Best for: US-focused teams that want person-level alerts with minimal setup.

Dealfront: company-level identification for Europe

Dealfront, the company behind Leadfeeder, identifies the companies visiting your site and adds European company data, with an emphasis on privacy compliance.

• Best for: teams selling in Europe that want company-level visitor identification.

Unify: identification that leads straight into sequences

Unify takes website and other account signals and turns them into automated plays and email sequences. Read Unify alternatives for how it compares with its own neighbors.

• Best for: SaaS teams with RevOps capacity that want signals and sequences in one system.

6sense: account-based programs at enterprise scale

6sense combines account identification, third-party intent and predictive models of buying stage in one enterprise platform.

• Best for: large B2B companies running account-based programs across many territories.

Which Warmly alternative fits your situation?

How to test a visitor identification tool before you sign

Every tool in this category shows convincing matches in a demo. Your own traffic is the only fair test. If a vendor offers a trial or a paid pilot, use two weeks of it for these checks, and run two tools side by side on the same weeks if you are choosing between them.

1. 1

   Plant visits you can recognize

   Ask a few friendly contacts, such as customers or partners, to open two or three of your pages on set days, some from an office network and some from home or a phone. Check which visits the tool ties to the right company, and how long the alert takes to arrive. Visits from home networks are harder to match, so you learn where the tool is blind.

2. 2

   Compare a week of matches with your CRM

   Export the identified companies and sort them into four groups: existing customers, open deals, new accounts that fit your ICP, and companies outside it. Only the third group is new pipeline, and it is the number to compare with the price.

3. 3

   Look for padding

   Scan the list for internet providers, coworking spaces, universities, hosting companies and your own company. A list full of these looks large and books nothing.

4. 4

   Read five person-level matches closely

   If the tool names individuals, check five against their public profiles: right company, plausible role, a plausible reason to read those pages. A confident wrong name is worse than an honest company-level match.

5. 5

   Time the handoff

   Note when the visit happened, when the alert reached a rep and when the rep acted. An alert that waits until Monday gives away the speed you are paying for.

Warmly vs Startories

What should the first email say? Two samples

Visitor data and public signals call for different first lines. Both samples are written for an invented company that sells customer onboarding software to B2B SaaS teams, writing to Dana, a head of customer success.

To a visiting account, without mentioning the visit

Subject: onboarding for your first large accounts

"Hi Dana, when SaaS teams start selling to larger accounts, the onboarding checklist is often the first thing to strain: more stakeholders, a security review and a kickoff nobody clearly owns. We help customer success teams turn that into a tracked plan the customer can see. Worth comparing notes on how you run it today?"

Why it works: the reason for writing is tied to her role and the company's stage. It does not say "I saw you on our pricing page", which many readers find intrusive even when it is true.

To a company with a public signal

Subject: your post about sales-to-CS handoffs

"Hi Dana, you wrote on X that the handoff from sales to customer success is where new deals lose momentum. One fix: a shared onboarding plan that starts the day the contract is signed, so the customer sees the next three steps before the kickoff call. That is what we build. Open to a 15-minute look?"

Why it works: the reason for writing is something Dana said in public, so the email reads as a reply rather than as tracking. More templates by situation are in our cold email templates.

One follow-up that works for both

"Dana, one question to close the loop: who owns the kickoff call today, sales or CS? If the answer changes from deal to deal, that is usually where accounts stall. Happy to send the one-page plan we use."

Why it works: a single question that is easy to answer, and a useful offer that does not repeat the pitch.

Privacy, consent and deliverability checks

Visitor identification runs a script on your site, so it touches your privacy policy and cookie settings. Rules vary by country and by US state, and this page is not legal advice. Before you install any visitor tool, ask the vendor how it matches visitors to people or companies, which regions it covers and how a person can opt out, then describe the tool in your privacy policy.

Outreach has its own rules whatever the source. In the US, the CAN-SPAM Act asks commercial senders to identify themselves honestly, use subject lines that match the content, include a valid postal address and honor opt-out requests promptly (FTC compliance guide). Startories puts an opt-out in every email, suppresses unsubscribed and bounced contacts across all campaigns, and sends from dedicated, warmed-up inboxes on separate domains with capped daily volumes. Our deliverability guide explains that setup.

Should you combine visitor data with outside signals?

Often, yes. Visitor data catches buyers who already know you. Public signals catch the larger group still comparing options in forums, on social media and in directories. Use one definition of your target customer across both sources so your team works the strongest leads first; our ideal customer profile template helps you write it down.

If you keep a visitor tool and add Startories, decide who owns each source and keep one suppression list, so an account that visited your pricing page and also posted on Reddit gets one coherent conversation instead of two unrelated emails. The intent data guide explains how first-party and third-party signals fit together.

Switching off a visitor tool without losing anything

1. 1

   Export the history

   Export identified accounts with their visit dates and pages viewed. Recent high-intent accounts deserve a manual follow-up before the switch.

2. 2

   Reassign live alerts

   Decide who receives high-intent accounts after the change, so a hot account does not sit unseen for a week.

3. 3

   Remove the script cleanly

   Remove the tracking script from every page and tag manager container, then update your cookie banner and privacy policy.

4. 4

   Carry over suppression

   Load opt-outs, current customers and open deals into every new tool before the first send.

5. 5

   Compare for a month

   Track meetings booked per source and cost per meeting, not identified visitors. A source that identifies many companies but books no calls is not working.

How to start with Startories

Begin with a single funnel: one ideal customer profile and one signal source, with about 250 qualified and enriched leads a month on the $99 Starter plan. Your first project starts with a 3-day full-access trial for $1. Growth ($499) and Scale ($999) add funnels, sources and lead volume, and Scale includes CRM integrations. Compare them in the pricing section, or read how AI outbound works with Startories.

If you are also reviewing visitor and intent tools that sit closer to your CRM, our Common Room alternatives page covers the community side of first-party signals.

Frequently asked questions

Sources

• Warmly
• Warmly: Website visitor identification
• Warmly: Account-based marketing
• Warmly: Pricing
• Warmly: Warmly is joining HubSpot
• CMSWire: HubSpot acquires Warmly
• HubSpot: Acquisition of Clearbit completed
• HubSpot: Breeze Intelligence
• HubSpot: Buyer intent
• RB2B
• Dealfront
• Unify
• 6sense
• FTC: CAN-SPAM Act compliance guide for business