LakeB2B vs TAMI AI: Which B2B Data Provider Should You Pick?
If you're weighing LakeB2B against TAMI AI, you've already noticed the problem: there are almost no head-to-head comparisons anywhere online. Neither tool has meaningful Reddit discussion either, which tells you something about market penetration. Both claim massive databases. One won't show you a price; the other caps export credits at 250/month on its entry plan. Here's what we found after digging into both.
30-Second Verdict
Pick LakeB2B if you're an enterprise team that wants managed services, white-label data, or custom datasets delivered on a project basis.
Pick TAMI AI if you're a mid-market team prospecting in Europe and want self-serve access with transparent pricing.
Feature Comparison at a Glance
| Feature | LakeB2B | TAMI AI | Winner |
|---|---|---|---|
| Database size | 450M+ (or 810M+?) | 450M+ contacts | Tie - both publish conflicting numbers |
| Pricing | Custom quote only | $0-$79/user/month (Enterprise: custom) | TAMI AI |
| Data refresh | "Updated monthly" + "every 45 days" (both published) | Monthly + refresh on demand before export | TAMI AI |
| Accuracy claim | 95% delivery guarantee | <5% bounce rate | LakeB2B (on paper) |
| Reviews | 4.7/5 on G2 (5 reviews) | 4.3/5 on G2 (139 reviews) | TAMI AI (sample size) |
| Integrations | Salesforce, HubSpot, Marketo, API | Salesforce, HubSpot, Pipedrive, Mailchimp, Zoho, Salesloft, Close | TAMI AI |
| Free trial | No | Yes (50 credits) | TAMI AI |
LakeB2B - Full-Service, Zero Transparency
LakeB2B is a managed data partner, not a self-serve tool. You talk to a team, define your ICP, and they deliver datasets. For enterprise buyers wanting white-label solutions, that model works.
If you're building around a defined ICP, use an Ideal Customer Profile scoring rubric before you buy any dataset.
The data claims, though, are a mess. The main database page says 450M+ contacts. The white-label TAM platform claims 810M+ executive contacts across 189 countries. Meanwhile, the B2B email lists page breaks it down as 134M national records (74.6M emails) and 122M international records (31.5M emails) - last updated February 2026. Those numbers don't add up to 450M, let alone 810M. The same site also publishes both "updated monthly" and "every 45 days" refresh language on different pages. In our experience, when a vendor can't keep its own numbers straight, the data itself isn't any tidier.
If you're comparing vendors at this level, it helps to benchmark against other B2B company data providers too.
Pros:
- Managed service with flexible engagement models and five pricing structures
- 95% email deliverability guarantee (but still worth understanding email deliverability basics)
- White-label and custom dataset options
Cons:
- Every plan requires a custom quote - expect mid-four figures to five figures annually
- No free trial or self-serve access
- Only 5 reviews on G2; Trustpilot has 16 reviews at 4.5/5, but one reviewer alleges fraud. With a sample this small, the signal-to-noise ratio is too low to trust
LakeB2B can't keep its own database numbers straight, and TAMI's data skews heavily European. Prospeo gives you 300M+ globally verified profiles on a 7-day refresh cycle - not monthly, not every 45 days. With 98% email accuracy and a 5-step verification process, you stop guessing whether contacts are real.
Get verified global data for $0.01/email - no sales call required.
TAMI AI - Strong in Europe, Thin Everywhere Else
TAMI is the opposite model: self-serve, transparent pricing, built for European prospecting. The platform covers 450M+ contacts across 71M companies.
Use TAMI if you prospect in Europe and want a tool you can trial today. The free plan gives 50 export credits and 5 mobile credits.
Skip TAMI if your ICP is US-heavy. On G2, 117 of TAMI's 139 reviewers are based in Europe - about 84% - which is a strong hint about where the product has the deepest traction.
If you're doing outbound, pair any database with proven sales prospecting techniques so you don't waste credits on bad targeting.
Here's the pricing breakdown: Free ($0, 50 export credits), Basic ($55/user/month or $47 billed annually, 250 export credits + 40 mobile credits), Growth ($79/user/month or $67 billed annually, 500 export credits + 80 mobile credits), Enterprise (custom, unlimited exports). Credits reset monthly and don't roll over. On Basic, that's $0.22 per export credit before you've confirmed accuracy - and G2 reviews frequently mention contact info being outdated despite the <5% bounce rate claim.
If you're seeing bounces, compare against current email bounce rate benchmarks before blaming your copy.
Let's be honest: if your average deal size is under $15k and you're running high-volume outbound, TAMI's per-contact math makes it one of the most expensive "affordable" tools on the market.
Side-by-Side Pricing
| Plan | TAMI AI | LakeB2B |
|---|---|---|
| Free/Trial | $0 (50 export credits + 5 mobile credits) | None |
| Entry paid | $55/user/month (250 export credits) | Custom - typically mid-four to five figures/year |
| Mid-tier | $79/user/month (500 export credits) | Custom |
| Enterprise | Custom (unlimited export credits) | Custom |
If you have to ask LakeB2B for pricing, you're probably not their target buyer. They're built for enterprise contracts with managed services baked in - very different from most sales prospecting databases.
Why We'd Test Prospeo First
Here's the thing: we've watched teams spend weeks evaluating tools like LakeB2B and TAMI AI only to land on something that doesn't quite fit. If what you actually need is verified contact data with global coverage, Prospeo is the faster route. It runs on a 7-day data refresh cycle - the industry average is 6 weeks - while both LakeB2B and TAMI describe monthly-or-longer cadences. The platform covers 300M+ professional profiles with 98% email accuracy, verified through a 5-step process that includes catch-all handling and spam-trap removal. It also offers 125M+ verified mobile numbers with a 30% pickup rate, something neither LakeB2B nor TAMI can match on published specs.
If you're evaluating vendors, it's also worth understanding how data enrichment services differ from list providers.
Prospeo starts free with 75 verified emails per month, paid plans run roughly $0.01 per email, and native integrations include Salesforce, HubSpot, Smartlead, Instantly, Lemlist, Clay, Zapier, and Make. For teams comparing LakeB2B vs TAMI AI and finding neither quite fits, it's the third option worth testing first.
If you're building lists in Clay, this Clay list building workflow can help you control costs.
At $0.22 per TAMI export credit, a 500-contact list costs $110 before you even know if the emails bounce. Prospeo verifies every email through catch-all handling, spam-trap removal, and honeypot filtering - then charges roughly $0.01 per verified contact. Teams using Prospeo book 35% more meetings than Apollo users.
Stop subsidizing bad data. Pay a penny per verified email instead.