Bytemine vs TAMI AI: Which B2B Data Tool Is Worth Your Budget?
Good luck finding this comparison anywhere else. Neither Bytemine nor TAMI AI generates the usual flood of "vs" articles, so teams evaluating both are basically flying blind. B2B contact data decays at roughly 2.1% per month - about 22.5% annually - which means picking the wrong provider doesn't just waste budget. It actively poisons your pipeline.

30-Second Verdict
Bytemine wins if you're targeting US prospects and want low per-record costs ($0.02-$0.05) with real-time validation and API flexibility.
TAMI wins if you need European eCommerce targeting, tech-based segmentation, and can stomach ~$0.22/contact on the Basic plan.
Side-by-Side Comparison
| Database size | Not publicly benchmarked | 450M+ contacts, 71M companies | 300M+ profiles |
| Email accuracy | Real-time validation | Claims <5% bounce rate | 98% verified |
| Mobile numbers | US-focused coverage | Mobile credits included per tier | 125M+ global |
| Starting price | $50/mo (1,000 credits) | $55/mo ($47/mo annual) for 250 exports | Free (75 emails/mo) |
| Cost per contact | $0.02-$0.05 | ~$0.22 (Basic), ~$0.16 (Growth) | ~$0.01/email |
| Cost per mobile | Included in credits | ~$1.38 (Basic), ~$0.99 (Growth)* | 10 credits/number |
| Credit rollover | Not confirmed | No - use it or lose it | No expiry pressure |
| Free tier | Yes (real data) | 50 exports + 5 mobiles | 75 emails + 100 ext. credits |
| Integrations | API + file enrichment | Salesforce, HubSpot, Pipedrive, Zoho, Salesloft, Close, Mailchimp | SF, HubSpot, Clay, etc. |
| G2 rating | Limited public reviews | 4.3/5 (139 reviews) | Used by 15,000+ companies |
| Compliance | Standard | GDPR, ISO 27001 | GDPR compliant |

TAMI mobile costs calculated from plan price divided by included mobile credits.
For context, ZoomInfo starts at $15K+/year and Apollo runs free to $99/mo - both Bytemine and TAMI sit squarely in the SMB tier. If you're still mapping your options, start with our roundup of sales prospecting databases.

Bytemine
Bytemine's pitch is straightforward: US-focused B2B contact data with real-time validation baked in. It's built for self-serve prospecting through a list builder, plus API access and file enrichment workflows. Paid plans start at $50/mo for 1,000 credits, and pricing scales down to roughly $0.02-$0.05 per record at higher volumes.
Real-time email validation at this price point is a genuine differentiator. You're not paying for records and then running them through a separate verification tool - the validation happens before delivery, which saves both money and time. If you want to compare approaches, see our guide to data enrichment services. The free plan includes actual usable data, not dummy records, and you can start without a credit card.
Here's the thing: Bytemine doesn't have a meaningful public review footprint on G2, Capterra, or Reddit. That doesn't kill the product, but it means you're taking more of a leap of faith compared to a tool with hundreds of reviews. We've seen plenty of solid tools fly under the radar, but we've also seen tools stay under the radar for a reason.
Use this if: You prospect heavily in the US and want the lowest per-record cost with built-in validation.
Skip this if: You need European coverage or want heavy social proof before committing budget.


Bytemine validates in real time but lacks global coverage. TAMI offers tech segmentation but charges ~$0.22/contact with use-it-or-lose-it credits. Prospeo gives you 300M+ profiles at $0.01/email with 98% accuracy, 7-day data refresh, and 30+ filters including technographics.
Stop overpaying for data that decays before you use it.
TAMI AI
TAMI has carved out a niche worth knowing about: eCommerce company identification backed by a European patent. The platform scans 174M websites to classify businesses, and its tech-based segmentation lets you filter prospects by the specific technology stack they run - payment processors, CMS platforms, analytics tools, you name it. If you sell MarTech or payment solutions into European eCommerce, this kind of filtering is genuinely hard to replicate elsewhere. TAMI also monitors contacts for join/leave events and job title changes, pushing alerts directly into your CRM, a feature most tools at this price tier don't offer.
On coverage, TAMI positions its database at 450M+ contacts across 71M companies. It also offers a Chrome plugin to uncover verified contacts from online profiles and web pages, and it's ISO 27001 certified.
The review picture is mixed. G2 gives it 4.3/5 across 139 reviews, and Capterra lands at 4.4/5 with 131 reviews - solid scores. But the recurring complaints are concerning: users consistently flag contacts mapped to wrong companies, outdated data, slow page loading, and clunky Excel exports. One Reddit user reported being cold-called by TAMI using their personal phone number, raising real questions about data sourcing practices.
Let's talk credit economics, because this is where TAMI gets expensive fast. Basic gives you 250 export credits for $55/mo ($47/mo billed annually). The Growth plan bumps to 500 export credits and 80 mobile credits for $79/mo - still about $0.16/contact on the monthly plan. Mobile numbers work out to roughly $0.99-$1.38 each depending on tier. Credits don't roll over. Miss a month, and they're gone.
Our take: TAMI's tech-based segmentation is legitimately best-in-class for eCommerce targeting. But if you're not specifically selling into eCommerce tech stacks, you're paying a premium for a feature you'll never use.
Key Differences That Matter
Pricing economics: TAMI's ~$0.22/contact on Basic is 5-10x more expensive than Bytemine's $0.02-$0.05 range. For a team exporting 1,000 contacts/month, that's $50 vs $220. That gap compounds quickly.

Mobile credit economics: TAMI's Basic plan includes 40 mobile credits per month, and the effective cost per mobile is high compared to its export credits. If direct dials are core to your outbound motion, you'll feel this within the first week. If you're building a calling motion, pair this with a tighter cold calling system.
Data validation approaches: Bytemine validates in real time before delivery. TAMI guarantees <5% bounce rates, but reviewers consistently flag accuracy issues. In our experience testing B2B data tools, vendor bounce claims and real-world accuracy rarely match - sometimes the gap is dramatic. If bounce rates are hurting you, use this email bounce rate guide to diagnose the root cause.
Credit policy: TAMI's use-it-or-lose-it monthly reset punishes inconsistent prospecting cadences. If your team has busy months and slow months, you're effectively subsidizing the months you don't prospect. Bytemine's rollover policy isn't confirmed, so ask before you commit.
Worth Considering: Prospeo
If neither tool in this matchup gives you confidence on data quality, Prospeo solves that directly. The platform covers 300M+ professional profiles with 98% email accuracy through a proprietary 5-step verification process, plus 125M+ verified mobile numbers globally with a 30% pickup rate. Data refreshes every 7 days - the industry average is six weeks. Prospeo also layers in buyer intent data across 15,000 topics via Bombora and offers 30+ search filters including technographics, job changes, and headcount growth. Pricing starts at ~$0.01 per verified email, with a free tier and no contracts. If you want to compare more vendors in this category, see our list of B2B company data providers.


TAMI's mobile credits cost $0.99-$1.38 each, and Bytemine's coverage stops at the US border. Prospeo delivers 125M+ verified mobile numbers globally with a 30% pickup rate - plus buyer intent data across 15,000 topics to prioritize who's actually in-market.
Direct dials that connect, intent signals that convert - starting free.

FAQ
Is TAMI AI's data accurate?
TAMI guarantees a bounce rate under 5%, but user reviews consistently flag outdated contacts and records mapped to incorrect companies. The filtering and segmentation are strong - just verify critical contacts independently before launching outreach sequences.
Does Bytemine offer a free plan?
Yes. Bytemine's free plan includes access to real data, not dummy records. Paid plans start at $50/month for 1,000 credits, scaling down to $0.02/record at higher volumes. No credit card required to start.
Which B2B data tool has the best email accuracy in 2026?
Among these three, Prospeo leads with 98% verified email accuracy and a proprietary 5-step verification process that includes catch-all handling and spam-trap removal. Neither Bytemine nor TAMI publishes third-party audited accuracy benchmarks.
