=== CURRENT ARTICLE (slug: the-data-city-vs-tomba) ===
The Data City vs Tomba: They're Not Competitors - Here's What You Actually Need
The Data City and Tomba both touch "B2B data." That's where the similarity ends. One classifies companies into AI-powered sector taxonomies. The other finds email addresses from domain names. Comparing them is like comparing a census bureau to a phone book - different data, different purpose, different buyer.
If you landed here expecting a head-to-head feature shootout, we need to reset expectations first.
30-Second Verdict
Use The Data City if you need to map companies by emerging sector, replace outdated SIC codes, or run policy and investment research on industry clusters. It covers 120M companies across 12 countries and is built for company classification and sector intelligence - not contact discovery.
Use Tomba if you need quick domain-based email lookups for small-scale prospecting. The free tier gives you 25 searches and 50 verifications, enough to test before committing.
Side-by-Side Comparison
| The Data City | Tomba | Prospeo | |
|---|---|---|---|
| Purpose | Company classification | Email finding | B2B contact data |
| Data type | Sector/industry intel | Emails from domains | Emails + mobiles |
| Database | 120M companies | 160M+ emails, 55M domains | 300M+ profiles |
| Pricing | £8K-£30K/yr | $0 free / from $588/mo paid | ~$0.01/email, free tier |
| Integrations | API, custom | HubSpot, Zapier, Mailchimp | Salesforce, HubSpot, Clay |
| Best for | Policy, investors, analysts | Domain email lookups | Sales prospecting at scale |
What The Data City Does
The Data City exists because SIC codes are broken. The UK's Standard Industrial Classification system was last updated in 2007 - nearly 20 years ago - and about 740,000 UK companies sit in vague "not elsewhere classified" buckets, roughly 15% of the total. SIC code 82990 alone lumps Amazon UK Services, Google UK, Santander UK, and Facebook UK under "Other business support services n.e.c." Useless for serious sector analysis.
The Data City replaces SIC with Real-Time Industrial Classifications (RTICs): AI-powered taxonomies covering 400+ emerging sectors. Their system uses company websites to classify what firms actually do, then maintains those classifications through monthly updates, annual taxonomy refreshes, and hot fixes incorporating user feedback. Centre for Cities uses The Data City's RTIC/RSIC methodology for economic research, which is solid third-party validation.
The platform spans 120M companies across 12 countries, with 12M+ that have matched URLs and 1M+ with at least one assigned RTIC. The public review footprint is thin - Trustpilot shows 3.7/5 based on a single review, which tells you nothing statistically. But the product serves policymakers, investors, and think tanks who don't leave G2 reviews. Here's the thing: if you're in sales, The Data City isn't a contact database. You'll still need a separate tool to find emails and phone numbers.
If you're trying to turn sector research into pipeline, you'll typically need data enrichment to connect company records to real people.
The Data City classifies companies but can't find contacts. Tomba finds emails but struggles at scale. Prospeo gives you 300M+ profiles, 143M+ verified emails, and 125M+ direct dials - all refreshed every 7 days, not every 6 weeks.
Stop stitching two tools together when one platform covers both.
What Tomba Does
Tomba is a straightforward email finder and verifier. Feed it a domain, get back associated email addresses. Core features include Domain Search, Email Finder, Email Verifier, and Phone Finder, drawing from 160M+ emails across 55M domains.
Reviewers on G2 (4.7/5, 25 reviews) and Capterra (4.7/5, 19 reviews) consistently praise the clean UI and fast onboarding. Support is responsive. For occasional, low-volume domain lookups, it works.
Where it falls short:
- It won't collect or verify personal webmail addresses like Gmail or Outlook, even when they're visible on a company's contact page - multiple Capterra reviewers flag this
- Quality varies heavily by industry; the consensus on r/coldemail is that it's "cheap and useful for domain searches, but quality really depends on the industry"
- Plan limits feel tight at any real volume, the most common G2 complaint
- AppSumo deal buyers have flagged concerns about plan stacking and feature access
Let's be honest: Tomba is fine for the freelancer who needs 20 emails a week. The moment you're running outbound for a team, you'll hit the ceiling fast.
At that point, most teams move from one-off lookups to repeatable lead generation workflow and list building.
Pricing Breakdown
The Data City
Annual platform licenses, no monthly option:
- Solo: £8,000/yr (1 seat)
- Team: £18,000/yr (5 seats)
- Department: £30,000/yr (15 seats)
- 7-day free trial available; 10% discount on multi-year contracts
This is enterprise pricing for an enterprise use case. If you're a sales team, this isn't your tool.
Tomba
Tomba's pricing situation is confusing. The official pricing page lists plans starting at $588/month for Basic, scaling up to $5,388/month for Pro Plus. But marketplace listings on Capterra and TrustRadius show tiers starting at $39/month, and other third-party sites list plans from $28/month. We've seen this inconsistency ourselves - check the specific plan page you're buying from before committing.
The free tier gives you 25 searches and 50 verifications per month.
Prospeo
Credit-based, no annual contracts: ~$0.01 per email, 10 credits per mobile number. A free tier includes 75 verified emails and 100 Chrome extension credits per month. No sales calls required.
If you're comparing tools mainly on verification and bounce protection, see our guide to email bounce rate benchmarks and fixes.
When to Use Each Tool
The Data City is for mapping emerging sectors - investment due diligence, policy research, economic analysis. It's a classification engine. If you need to understand which UK companies are actually doing AI work versus which ones just say they are, this is your tool. Skip it for anything related to outbound sales.
Tomba works for quick, low-volume domain-based email lookups. The free tier is fine for testing, and coverage is decent in industries where its database is strong. For teams doing more than a few dozen lookups per week, the limits and quality inconsistencies become a real problem.
For actual sales outreach at scale - verified emails, direct dials, CRM enrichment, intent-based prospecting - Prospeo is the clear pick. We've built the platform around a 7-day data refresh cycle versus the 6-week industry average, which keeps outreach lists current and bounce rates low.
If you're building a repeatable outbound motion, start with proven sales prospecting techniques before you add more tools.
The Better Option for Prospecting
Here's the gap in the whole Data City vs Tomba debate: The Data City classifies companies but doesn't solve contact discovery. Tomba finds emails, but plan limits get tight at scale and quality varies by industry. Neither tool gives you the full picture a sales team needs.
Prospeo bridges both sides with 300M+ profiles, 143M+ verified emails, and 125M+ verified mobile numbers at 98% email accuracy. You get 30+ search filters including buyer intent powered by Bombora, technographics, job changes, and headcount growth signals. The Chrome extension (40,000+ users) works across company websites and professional profiles, and native integrations push contacts directly into Salesforce, HubSpot, Lemlist, Instantly, and Clay.
If you're evaluating your stack, it helps to compare categories like SDR tools and outbound lead generation tools alongside data providers.
One scenario we see often: a research team uses a classification tool to identify companies in a niche sector, then feeds those company names into Prospeo's database to pull verified contacts for outreach. That two-step workflow covers both the "who are these companies" and "how do I reach them" questions without forcing you into a single platform that does neither well.
Tomba's plan limits get tight fast, and quality varies by industry. Prospeo delivers 98% email accuracy across every sector at ~$0.01 per email - with 30+ filters including buyer intent, technographics, and headcount growth built in.
Get verified contacts at scale without hitting a ceiling.
FAQ
Are The Data City and Tomba direct competitors?
No. The Data City classifies companies by sector using AI-powered RTICs. Tomba finds email addresses from domain names. They serve completely different stages of the research and prospecting workflow with zero feature overlap.
Can I use The Data City for sales prospecting?
Not directly - it identifies and classifies companies but contains no contact data. You'd pair it with a separate tool to find emails and phone numbers at the companies it surfaces, then push those contacts into your outreach sequences.
What's the cheapest way to get verified B2B emails?
Prospeo's free tier delivers 75 verified emails per month and scales at roughly $0.01 per email with 98% accuracy. Tomba's free tier gives you 25 searches and 50 verifications, but official paid plans start at $588/month while marketplace listings show tiers from $39/month. The Data City doesn't offer contact data at all, so it's not in this conversation.