Go4Database vs Prospeo: Which B2B Data Tool Wins in 2026?
A RevOps lead we know bought a 10,000-contact list from a bulk provider last year. Twenty-five percent bounced on the first send. Their domain reputation tanked, and it took six weeks to recover deliverability - that's the kind of damage you can't see on an invoice but absolutely feel in your pipeline. It's the core risk when you compare Go4Database vs Prospeo: a pre-built list vendor against a real-time data platform.
30-Second Verdict
Pick Go4Database if you need a cheap CSV for a one-off blast and you're okay with double-digit bounce risk (one G2 reviewer cited ~25% bounces).
Pick Prospeo if you're running modern outbound - sequences, CRM enrichment workflows, or anything where domain reputation matters. 98% email accuracy, real-time verification, native integrations, intent data. For most teams, it's not close.
Here's the thing: these aren't really competitors. One is a contact list vendor. The other is a real-time B2B data platform. If you're comparing them, you've probably already outgrown what Go4Database offers.
What Each Tool Actually Is
Go4Database
Go4Database launched in 2012 as a bulk contact list provider based in India. They reference 400M global business contacts in some places and 350M in others - the actual number is inconsistent across their own site. The product is straightforward: you buy lists segmented by industry, geography, and job title, delivered as CSV or Excel files.
What matters is how they build those lists. Go4Database sources data from tele surveys, website business directories, affiliate networks, job surveys, and lead generation companies - a patchwork of third-party sources with no documented refresh cycle. There's no Chrome extension, no native CRM integrations, and no publicly documented API. Their Crunchbase competitors are InfoCleanse, Apac Leads, and Global Data Brokers - other list vendors, not SaaS platforms.
Prospeo
Prospeo is a real-time B2B data platform with 300M+ professional profiles, 143M+ verified emails, and 125M+ verified mobile numbers refreshed on a 7-day cycle. You get 30+ search filters including buyer intent, technographics, job changes, and headcount growth. The Chrome extension has 40,000+ users. Native integrations push data into Salesforce, HubSpot, Smartlead, Instantly, Lemlist, Clay, Zapier, and Make. Intent data covers 15,000 topics via Bombora. Self-serve, no contracts, GDPR compliant.
The architectural difference matters: the platform uses proprietary infrastructure to verify emails in real time rather than serving pre-built lists. You pay for verification, not stale records.
Feature-by-Feature Comparison
This table tells the story quickly.
| Feature | Go4Database | Prospeo |
|---|---|---|
| Database size | 350M-400M (inconsistent across pages) | 300M+ professional profiles |
| Email accuracy | 95% claimed; reviews cite ~85-90% inbox landing | 98% verified |
| Data delivery | CSV/XLS export | Real-time + integrations + enrichment |
| Data refresh | Not documented | Every 7 days |
| Chrome extension | No | Yes (40K+ users) |
| CRM integrations | No (manual import) | Salesforce, HubSpot, + more |
| Intent data | No | Yes (15K topics) |
| API | Not documented | Yes (92% match rate) |
| Mobile numbers | 130M verified mobile numbers | 125M+ (30% pickup) |
| Verification model | Bulk list export + replacement warranty | Real-time 5-step |
Pricing Breakdown
Go4Database's pricing looks cheap until you do the math on usable contacts.
Go4Database:
| Plan | Monthly | Annual | Contacts/Mo |
|---|---|---|---|
| Free Trial | $0 | $0 | 100 |
| Nano | $55 ($35 annual) | $420/yr | 1,500 |
| Micro | $95 ($59 annual) | $708/yr | 3,000 |
| Mega | Custom | Custom | Custom |
One detail buried in their terms: Go4Database offers no refunds - only data replacements if accuracy drops below their threshold - and charges a 50% fee for order cancellations.
Prospeo:
| Plan | Price | Details |
|---|---|---|
| Free | $0 | 75 emails + 100 extension credits |
| Paid | From ~$39/mo | ~$0.01/email, scales up |
Now let's run the cost-per-usable-lead math using a real-world example from a G2 review. Go4Database's Nano plan at $35/month on annual billing gives you 1,500 contacts. If you hit a ~25% bounce scenario, that's roughly 375 dead contacts - leaving 1,125 usable ones at ~$0.031 each. Prospeo at ~$0.01/email with 98% accuracy delivers usable contacts at ~$0.010 each. That's roughly 3x cheaper per contact that actually works. And it doesn't factor in the domain damage from sending to 375 bad addresses every month.
If your bounce rate is above 5%, your "cheap" data provider is the most expensive line item in your outbound stack. You just can't see it on the invoice.
You just saw the math: Go4Database's ~25% bounce rates mean you're paying $0.031 per usable contact while risking your domain reputation every send. Prospeo delivers 98% verified emails at ~$0.01 each, refreshed every 7 days, with native integrations into your outbound stack.
Stop cleaning CSVs. Start sending to contacts that actually exist.
Data Accuracy: Claims vs. Reality
Go4Database's website claims 95% data accuracy with a replacement warranty. The user reviews tell a different story.
Pa-one N. on G2 reported roughly 25% bounce rates and noted the data "requires me to double-verify" before use. Tarun S., a senior VP, said he could plan campaigns "knowing at least 85-90% of my emails will land in inboxes" - a polite way of saying 10-15% don't. Go4Database has 5 G2 reviews, all from Asia-based users, and a 4.0/5 on Trustpilot from just 4 reviews. That's a thin evidence base for a 95% claim.
It gets worse. Go4Database's own blog claims competitors like Lusha have only "60-70%" accuracy - a figure that doesn't match how most teams experience modern data providers. If they're loose with competitor numbers, their own 95% claim deserves scrutiny too.
On r/coldemail, people exploring new lead sources regularly bring up invalid emails as the reason they're switching tools in the first place. Pre-built lists decay fast, and the accuracy gap compounds with every send.
Prospeo's 98% accuracy holds up under real-world pressure. Meritt went from a 35% bounce rate to under 4% after switching. Snyk - running 50 AEs - dropped from 35-40% bounces to under 5%. Stack Optimize built to $1M ARR with bounce rates under 3% and zero domain flags across all clients.
Integrations and Workflow
It's 2026 and Go4Database still delivers data as CSV files. Their own comparison blogs confirm there are no native CRM integrations. You're downloading a spreadsheet, cleaning it, and manually importing it into whatever tool you use. Every single time.
If you want a deeper breakdown of modern data enrichment workflows, this is exactly where list vendors fall apart.
Prospeo plugs directly into the tools your team already runs - Salesforce, HubSpot, Smartlead, Instantly, Lemlist, Clay, Zapier, Make. Data flows automatically. The Chrome extension lets reps find verified contacts from any website without switching tabs. The API returns a 92% match rate for enrichment workflows.
This isn't a nice-to-have. It's the difference between a modern outbound stack and a manual process from 2015.
Who Should Skip Go4Database
If you're running outbound sequences through any modern tool - Instantly, Smartlead, Lemlist - skip Go4Database entirely. The manual CSV workflow adds friction at every step, and the bounce risk will hurt your sender reputation faster than you can build it. We've seen teams spend more time cleaning Go4Database lists than they would have spent just finding contacts from scratch with a verified source.
If you're trying to protect deliverability long-term, start with an email deliverability guide and work backward from the constraints.
For solo founders doing a single email blast to a niche list where deliverability doesn't matter long-term, Go4Database's Nano plan is fine. That's a narrow use case, though.
The Verdict
Use Go4Database if you're a solo founder who needs a cheap list for a single email blast, you don't have a CRM, and you're willing to manually clean the data afterward.
Use Prospeo if you're running outbound sequences, care about deliverability, need CRM integration, want intent signals, or work at an agency where burning a client's domain is a career-ending move.
When you weigh Go4Database vs Prospeo on accuracy, integrations, and true cost per usable lead, the gap is clear. Go4Database is a contact list vendor from 2012 that aggregates data from third-party sources. Prospeo is a real-time platform with proprietary verification infrastructure built for how modern sales teams actually prospect.
If you're evaluating other email list providers or a broader sales prospecting database, the same rule applies: prioritize verification + refresh cadence over raw database size.
Meritt dropped from 35% bounces to under 4%. Snyk ran 50 AEs at under 5% bounce. Stack Optimize hit $1M ARR with zero domain flags. The difference isn't effort - it's real-time verified data with 30+ filters, intent signals, and direct CRM integrations instead of stale spreadsheets.
Replace your bulk list vendor with a platform that protects your domain.
FAQ
Is Go4Database legit?
Go4Database is a real company founded in 2012 with a 4.8/5 G2 rating based on only 5 reviews, all from Asia-based users. They hold a 4.0/5 on Trustpilot from 4 reviews. Their 95% accuracy claim conflicts with user reports of ~25% bounces and 85-90% inbox landing. Legitimate business, but set data quality expectations accordingly.
How much does Go4Database cost?
Plans start at $35/month on annual billing for 1,500 contacts on the Nano tier, or $55 month-to-month. A free trial gives 100 contacts. No refunds are offered - only data replacements - and cancellations carry a 50% fee. All data arrives as CSV or Excel files with no CRM integrations.
Can Prospeo replace Go4Database?
Yes. Prospeo covers everything Go4Database does while adding real-time 5-step verification, native CRM integrations, a Chrome extension with 40,000+ users, intent data across 15,000 topics, and 98% email accuracy. The free tier gives you 75 verified emails per month to test before committing.
What's the biggest risk with bulk contact lists?
Domain reputation damage. Sending to a list with 15-25% invalid emails triggers spam filters and can tank your sender score for weeks. Real-time verification keeps bounce rates under 3-5% for most teams, while Go4Database's replacement warranty only covers the bad records - not the deliverability damage they cause.