Adapt.io vs Span Global Services: Which B2B Data Provider Actually Delivers?
You're not comparing two competitors here - you're comparing a SaaS prospecting tool to a data broker that sells pre-built contact lists. That distinction matters more than any feature checklist. The B2B data market is projected to grow from $863M in 2024 to $3.2B by 2030, and both platforms want a piece of it, but they play very different games.
Side-by-Side Comparison
| Feature | Adapt.io | Span Global Services | Edge |
|---|---|---|---|
| Business model | SaaS platform | Data broker / services | Adapt.io |
| Pricing | Free-$99/mo (published) + Custom | Quote-based; engagements typically start at $1K+ | Adapt.io |
| Database size | 150M+ contacts | 45M+ datasets (claimed) | Adapt.io |
| Accuracy claim | Verified emails | "100% verified" (vendor claim) | Adapt.io |
| G2 rating | 4.6/5 (2,789 reviews) | No G2 presence | Adapt.io |
| Free tier/trial | Yes (25 email credits/mo) | Free samples available | Adapt.io |
| Integrations | Salesforce, Outlook, Slack | Not documented | Adapt.io |
| Self-serve access | Yes | Quote-based | Adapt.io |
Adapt.io sweeps every row. That should tell you something.
Adapt.io - What You Get
Use this if you're a small-to-mid sales team that needs a self-serve prospecting tool with published pricing and a real user community. Adapt.io's 4.6/5 rating from 2,789 G2 reviews is legitimate social proof - users consistently praise ease of use (71 mentions), contact info quality (59 mentions), and lead generation speed (34 mentions). Filtering works as expected: location, employee count, revenue, seniority.
Skip this if credit limits will frustrate you. Limited credits is the #1 complaint across reviews (34 mentions), followed by broader credit limitations (24 mentions). The free plan gives you 25 email credits per month. Starter runs $49/mo for 500 credits, Basic is $99/mo for 1,000 email and 100 phone credits. That burns fast if you're running serious outbound.
There's also the accuracy question. Fourteen reviewers flagged incorrect email addresses, and one TrustRadius user warned that sending to bad emails can "spoil your domain reputation" and get you blacklisted. Average implementation time sits at 4 months with an ROI timeline of 16 months - that's a long runway for a prospecting tool.
If you're worried about bounces, it’s worth understanding email bounce rate benchmarks before you scale volume.
Adapt.io caps you at 25 free emails. Span Global Services charges $1K+ for lists that reviewers call fabricated. Prospeo gives you 300M+ profiles with 98% email accuracy, a 7-day data refresh cycle, and 75 free verified emails per month - no sales call, no quote process, no gamble.
Stop choosing between credit caps and data brokers. Pick accuracy instead.
Span Global Services - What You Get
Here's where things get complicated.
Span Global Services has been around since 2004, employs 250-999 people, and positions itself around technology databases, technographics, and list-based data products. On paper, the offering looks substantial: 13M tech contacts, 296M healthcare contacts, 70+ intelligence fields, a proprietary "Tech Connect" search tool, and coverage across 189+ countries. Their FAQ states that "all contacts are 100% verified through a multi-step process."
The reality doesn't always match. Trustpilot gives Span a 2.0 out of 5 from 13 reviews. One reviewer spent PS1,000 on a 10,000-contact pilot and described receiving "wrong people, made-up job titles, bad emails, bad phone numbers." Another called it a flat-out scam, saying "every single one of the emails was fake" with no response after payment. A third reported that data quality guarantees weren't honored and support went silent after delivery. We couldn't find meaningful community discussion about Span's data products either - another signal of limited market adoption.
Skip this if you need self-serve access, transparent pricing, or accountability. Engagements typically start at $1,000+, hourly rates run $100-$149, and there's no review presence to validate the product at scale. We wouldn't bet real budget on a provider where support disappears after payment.
Most Teams Don't Need a Data Broker
Let's be honest about what's happening in this market. The broker model is dying for a reason. When you buy a pre-built list, you're paying for data that was "verified" at some unknown point in the past, with no way to check freshness or accuracy before you commit real money. Self-serve platforms with real-time verification have made that model obsolete for most use cases.
If you're not running a complex, highly regulated, or niche data project, you don't need a custom data broker. You need a tool you can test in 10 minutes.
If you’re still evaluating vendors, compare options across B2B company data providers and data enrichment services to see what “verification” actually means in practice.
A Better Option for Most Teams
If you're weighing Adapt.io vs Span Global Services, you probably care about one thing above all else: will the data actually be accurate?
Real results back this up. Snyk's 50 AEs cut bounce rates from 35-40% to under 5% and grew AE-sourced pipeline 180%. Stack Optimize built to $1M ARR while maintaining 94%+ deliverability and zero domain flags across all clients.
Bad emails don't just waste credits - they torch your domain reputation. Prospeo's 5-step verification and proprietary email infrastructure keep bounce rates under 4%, just like Snyk's 50 AEs experienced when they cut bounces from 35-40% to under 5% and grew pipeline 180%.
Get 3x more free emails than Adapt.io with data you can actually trust.
FAQ
Is Span Global Services legit?
Span Global Services is a real company founded in 2004 with 250-999 employees. However, Trustpilot reviews (2.0/5 from 13 reviews) report fabricated data, fake job titles, and unresponsive support after payment. Request a free sample and verify contacts independently before committing any budget.
Is Adapt.io free?
Adapt.io offers a free plan with 25 email credits per month. Starter is $49/mo (500 credits), Basic is $99/mo (1,000 email + 100 phone credits), and Custom plans require a sales conversation. Credit limits are the most common user complaint across 2,789 G2 reviews.
What's a good free alternative to both?
Prospeo's free tier includes 75 verified emails and 100 Chrome extension credits per month - 3x Adapt.io's free allowance with no quote process like Span. It covers 300M+ profiles at 98% email accuracy with a 7-day data refresh cycle, making it the strongest self-serve option for small teams running real outbound in 2026.