ContactOut vs FullCircl: B2B Data & Email Finder Compared

Choosing between ContactOut and FullCircl feels harder than it should, mostly because people compare them as if they do the same job. They don't. One is built to find a person's email and phone number. The other is built to tell you which companies are worth pursuing in the first place. Buy the wrong one and you'll either have contacts you can't prioritize or a target list you can't reach.

This guide breaks down what each tool actually does, where each one wins, what they cost, and how to decide. And because "which of these two" is often the wrong question, we'll also cover a leaner option for teams whose real need is simply accurate, verified contact data at a predictable price.

TL;DR: ContactOut vs FullCircl at a glance#

• ContactOut is a contact-data and prospecting tool. Its core value is pulling personal and work emails plus phone numbers, largely from LinkedIn, for individual people you want to reach.
• FullCircl is a B2B customer intelligence and onboarding platform (formerly Artesian + DueDil). Its core value is company-level data, KYC/regulatory screening, and account prioritization—mostly UK and Ireland focused.
• They're not direct competitors. ContactOut answers "how do I contact this person?" FullCircl answers "which businesses should we target and are they safe to onboard?"
• Pricing philosophies differ hard. ContactOut sells seat-based prospecting plans; FullCircl sells enterprise data subscriptions with sales-led quotes.
• If you mostly need verified emails to run outbound, a focused email finder like Tomba covers that job at a lower, transparent price than either platform.

What is ContactOut?#

ContactOut is a contact-finding tool aimed at recruiters and salespeople. You install its Chrome extension, browse a LinkedIn profile, and it surfaces candidate email addresses (both work and personal) and phone numbers. It also offers a web search portal, a data-enrichment API, and list-building features for outreach at scale.

The pitch is coverage and reach. ContactOut leans on a large aggregated database of profiles and claims high match rates for personal emails in particular, which is why recruiters like it—candidates change jobs, and a personal address survives that change.

Where it fits:

1. Recruiting — reaching passive candidates on their personal email.
2. Sales prospecting — pulling a decision-maker's work email and direct dial before a cold outreach sequence.
3. List building — exporting enriched contact lists into a CRM or sequencer.
4. Enrichment — filling missing contact fields on records you already own via API.

The tradeoff: like most LinkedIn-sourced tools, accuracy varies by region and seniority, and you should verify emails before sending to protect your sender reputation. ContactOut is a data-access tool, not a deliverability tool.

What is FullCircl?#

FullCircl is a different animal. It's a customer lifecycle intelligence platform built for regulated B2B industries—banking, insurance, and financial services in particular. It was formed by merging Artesian Solutions (sales intelligence) with DueDil (company data), and it focuses on the UK and Ireland market.

FullCircl's job is to help you find, win, and keep business customers while staying compliant. That means:

• Company data and firmographics on millions of UK/IE businesses.
• Onboarding and KYC/AML checks — verifying a business is legitimate and screening for risk.
• Account targeting and alerts — surfacing companies that match your ideal customer profile and notifying you when something changes (funding, director changes, financial signals).
• Rules-based decisioning for credit and onboarding teams.

In other words, FullCircl sits upstream of outreach. It tells a bank or insurer which SMEs to approach and whether it's safe to do business with them. It is not primarily a tool for finding a specific individual's email address.

ContactOut vs FullCircl: how do they actually compare?#

Because the two tools target different stages of the funnel, a feature table is the clearest way to see the gap. The row that matters most for you depends on whether your bottleneck is reaching people or choosing accounts.

The short read: if you picked these two off a shortlist, one of them is almost certainly the wrong tool for your problem, not just the weaker one. Sales teams doing volume outreach gravitate to ContactOut. Risk, credit, and onboarding teams in financial services need FullCircl. There's very little real overlap.

Which one is better for cold outreach and prospecting?#

For pure outbound—building a list of decision-makers and emailing or calling them—ContactOut is the closer fit of the two. FullCircl can tell you which companies to target, but it won't hand you a clean, sendable email for the VP of Operations you want to reach.

That said, ContactOut has real limits for outbound teams:

• Verification is not its strength. You'll still want to run addresses through a dedicated email verifier before a campaign, because a 5% bounce rate on a cold domain can tank deliverability fast.
• Pricing scales by seat, which gets expensive when you add SDRs or need higher monthly credit limits.
• Personal-email heavy. Great for recruiting, less ideal when your CRM and compliance rules want verified business addresses.

If your entire reason for shopping is "I need accurate work emails at a good price," you may be over-buying with either platform. This is where a specialized finder-plus-verifier earns its place.

Where does Tomba fit in this comparison?#

Tomba is the option to consider when the job is contact data—not company intelligence, and not a full RevOps suite you'll only half-use. It's built to do one thing precisely: find and verify professional email addresses, then hand them off clean to your outreach stack.

The practical differences that matter:

• Find and verify in one flow. Tomba's domain search pulls every discoverable address at a company, the finder targets a specific person, and every result is scored so you send to real inboxes. That verification step is exactly what thin ContactOut/FullCircl coverage forces you to bolt on separately.
• Transparent, predictable pricing. No sales call to see a number. The free tier includes 25 searches a month, Starter is $49/mo, Growth is $99/mo, and Pro is $249/mo. See full Tomba pricing for credit limits.
• Built for workflows, not just a browser popup. Beyond the Chrome extension, there's an API, bulk processing, and native integrations for HubSpot, Salesforce, Sheets, and Zapier, plus data enrichment to fill gaps on existing records.
• Deliverability first. Because verification is baked in rather than an afterthought, you protect sender reputation instead of learning about bounces after the campaign.

Tomba won't do FullCircl's KYC screening or credit decisioning—if you're a regulated lender, that's FullCircl's lane. And if you specifically need bulk personal emails for recruiting, ContactOut's LinkedIn coverage is purpose-built for that. But for the very common case of "get me verified B2B emails to run outbound," Tomba is the direct, cost-efficient path. Teams cross-shopping ContactOut often land here; that's why the ContactOut alternative breakdown exists.

How do the three options compare on price and fit?#

Price is where the philosophies split most visibly. ContactOut publishes seat-based prospecting plans. FullCircl runs enterprise contracts with quotes tailored to data volume and modules. Tomba puts everything on the page.

A simple way to decide:

1. You screen and onboard business customers (finance/insurance)? FullCircl. The compliance and company-data depth justify the enterprise commitment.
2. You recruit and need personal emails at volume? ContactOut's LinkedIn coverage is its strongest use case.
3. You run outbound sales and need verified work emails without overpaying? Start with Tomba, keep the workflow simple, and add heavier platforms only when a specific gap appears.

Before committing to any of them, read real reviews on an independent site like G2 and confirm the tool's coverage in your target region—LinkedIn-based accuracy in the US is not the same as in EMEA, and FullCircl's edge is specifically UK and Ireland.

What do people actually get wrong about this matchup?#

The most common mistake is treating "ContactOut vs FullCircl" as an apples-to-apples decision. It rarely is. Buyers usually arrive with one of two underlying needs—reach a person or evaluate a company—and only one tool serves each. When a shortlist mixes them, it's a sign the requirement hasn't been pinned down yet.

The second mistake is ignoring verification. Both a person-finder and a company-intelligence platform can hand you an address, but neither is designed to guarantee it lands. Deliverability is its own discipline, and skipping it is how good lists produce bad campaigns.

The third is paying enterprise prices for a starter-stage need. If you're a small team running your first outbound motion, a sales-led FullCircl contract is overkill and even ContactOut's seat model can outrun your budget. Match the tool to the stage you're actually in, not the one you're aspiring to.

You can validate all of this cheaply: check each vendor's own docs (ContactOut and FullCircl), then run a small real-world test on a specialized finder before you sign anything longer than a month.

The bottom line#

ContactOut and FullCircl are both good at what they do—they just do different things. ContactOut gets you a person's email and phone. FullCircl tells regulated B2B teams which companies to pursue and whether to trust them. Pick based on which problem is actually blocking your pipeline.

If that problem is simply "I need accurate, verified B2B emails to run outbound, without a sales call to see the price," neither heavyweight is the obvious answer. Try the Tomba Email Finder: find the address, verify it in the same flow, push it straight to your CRM, and keep your deliverability intact. Start free with 25 searches a month, and upgrade only when your volume—not a contract—says you should.

Related guides#

• AroundDeal vs Endole (2026): B2B Data Platforms Compared
• AtData vs ContactOut 2026: Which B2B Data Tool Wins?
• Arounddeal vs Contactout: 2026 B2B Data Tool Comparison
• AroundDeal vs SalesIntel 2026: B2B Data Platform Comparison