Adapt.io vs ProsperFleet (Valgen): Which One Do You Actually Need?
Honestly, this comparison shouldn't exist. Adapt.io is a broad B2B contact database covering 250M+ contacts across dozens of industries. ProsperFleet is a fleet-specific prospecting tool built for people selling to trucking companies and organizations that operate commercial vehicles. Comparing them is like comparing a general contractor to a plumber - they're only competitors if you don't understand what you need.
Here's why the distinction matters: 54% of FMCSA-registered companies are single-vehicle owner-operators, and only 18% run 5+ vehicles. Fleet data is a genuinely distinct category that generic B2B tools can't serve well.
30-Second Verdict
Choose Adapt.io if you're doing broad B2B prospecting across multiple industries and want self-serve access under $100/mo. A 7-day free trial with no credit card lets you test before committing.
Choose ProsperFleet if you're selling specifically to fleets - you need fleet size, vehicle mix covering light, medium, and heavy duty including Class 1-3, and 5-mile ZIP code targeting that no general database tracks.
Here's the thing: if you're trying to force Adapt.io into fleet prospecting, you're wasting your time. And if you're using ProsperFleet for anything outside the fleet vertical, you're overpaying for data you don't need. Pick the right tool for the job, then verify your contacts before sending.
Feature Comparison
| Adapt.io | ProsperFleet | |
|---|---|---|
| Database | 250M+ contacts, 12M+ company profiles | 1.2M companies (5+ vehicles) / 2.2M contacts |
| Email accuracy | 90% | 90% (with replacements if 10%+ hard bounce) |
| Pricing | Free / $49 / $99 / Custom | ~$5,000-$20,000+/yr |
| G2 rating | 4.6/5 (2,789 reviews) | 4.0/5 (3 reviews) |
| CRM integrations | Salesforce, HubSpot, Pipedrive, Zoho, Outreach, Salesgear | Salesforce, HubSpot |
| Best for | Broad B2B prospecting | Fleet-specific targeting |
What Each Tool Actually Does
Adapt.io
Adapt.io is a solid mid-market B2B contact database with 250M+ contacts and 16M+ decision-maker profiles, refreshing 5M+ records daily. The Chrome extension works on professional profiles and company websites. Credit-based pricing keeps things accessible: a free tier at 25 contacts/day, Starter at $49/mo with 500 email credits and 500 enrichment credits, and Basic at $99/mo for 1,000 email credits, 1,000 enrichment credits, and 100 phone credits.
We've tested plenty of tools in this space, and Adapt.io's ease of use stands out - 2,789 G2 reviews back that up. The consistent frustration? Credit limits. It's the number one complaint on G2, with 34 mentions of "Limited Credits." If you're running high-volume outbound, those caps will bite you fast.
On Reddit's r/LeadGeneration, Adapt.io gets mentioned alongside Apollo and Hunter as a reliable email finder. But nobody's talking about fleet-specific use cases there, because that's not what it's built for.
G2 users also report a 4-month implementation timeline and 16-month ROI, which is worth factoring into your planning.
If you're evaluating other databases in the same category, start with a broader shortlist of sales prospecting databases and compare coverage, filters, and export limits.
ProsperFleet (Valgen)
ProsperFleet occupies a niche that generic B2B tools simply can't touch. The database covers 1.2M U.S. companies with 5+ vehicles, 1.6M fleet locations, 30M commercial vehicles, and 2.2M contacts - spanning light, medium, and heavy duty from sedans and vans all the way to semis. That light-duty coverage is a real differentiator because many fleet data sources lean heavily on FMCSA/USDOT data, which skews medium-to-heavy.
Geographic granularity goes down to 5 miles around a ZIP code. For regional sales teams, that's gold.
Valgen runs roughly 1M verification calls per month and guarantees 90% email accuracy, replacing records if 10%+ of emails hard bounce. One underrated feature: Valgen can deduplicate against your existing CRM, delivering only net-new leads - customers often already own about 25% of the records in a given pull.
The catch? ProsperFleet has only 3 G2 reviews. In 2026, that's a real credibility hurdle for buyers who rely on third-party validation, no matter how strong the underlying data is.
If you're comparing fleet data to a general enterprise database, see our breakdown of ProsperFleet (Valgen) vs ZoomInfo.
Whether you're pulling leads from Adapt.io's 250M database or ProsperFleet's fleet-specific lists, 90% email accuracy means 1 in 10 bounces. Prospeo's 5-step verification catches catch-all domains, spam traps, and honeypots that both tools miss - delivering 98% accuracy at $0.01/email.
Upload your CSV exports and only send to verified addresses.
Pricing Breakdown
| Plan | Adapt.io | ProsperFleet |
|---|---|---|
| Free/Entry | $0/mo (25 contacts/day) | No free tier |
| Mid-tier | $49/mo (500 email + 500 enrichment credits) | Custom quotes |
| Upper tier | $99/mo (1,000 email + 1,000 enrichment credits) | Custom quotes |
| Typical annual cost | $588-$1,188/yr | $5,000-$20,000+/yr |
Adapt.io's pricing is transparent and self-serve - a 7-day free trial with no credit card lets you kick the tires before committing.
ProsperFleet doesn't publish pricing. For niche vertical data with dedicated support and annual contracts, expect custom quotes in that $5,000-$20,000+ range. The pricing opacity is frustrating for SMBs trying to budget before a sales call, and there's no free trial or self-serve signup to soften the commitment.
If you're building a full outbound stack, it helps to map your spend across outbound lead generation tools (data, enrichment, sequencing, and verification).
When to Choose Which
Choose Adapt.io if you're prospecting across industries, need self-serve access today, and your budget is under $100/mo. It's a generalist tool that does generalist things well.
Choose ProsperFleet if you're selling tires, telematics, fleet management software, or maintenance services to companies with commercial vehicles. No general B2B database gives you fleet size targeting, vehicle mix breakdowns, or local fleet locations at this level.
If you're tightening your targeting before you buy data, use an Ideal Customer Profile to define fleet size bands, regions, and buyer roles.
Skip ProsperFleet if your prospects aren't fleet operators. The data is deep but narrow - you'd be paying enterprise prices for a fraction of the coverage you'd get from a generalist tool.
Close the Accuracy Gap Before You Send
Both tools advertise 90% email accuracy. At scale, that 10% gap compounds fast. On a 5,000-email campaign, a few hundred hard bounces can seriously hurt your deliverability and sender reputation.
In our experience, running contacts through a verification layer before any campaign launch is non-negotiable. Prospeo's 98% email accuracy and 7-day data refresh cycle close that gap. Upload your CSV exports, verify in bulk, and only send to confirmed addresses. With a proprietary 5-step verification process that handles catch-all domains, spam traps, and honeypots, it catches what other tools miss. Self-serve, free tier included.
If you're seeing deliverability issues, start by benchmarking and fixing your email bounce rate and then work through a full email deliverability guide.
Adapt.io's credit limits and ProsperFleet's $5K+ annual contracts both leave gaps. Prospeo gives you 300M+ profiles with 30+ filters, 98% verified emails, and a 7-day data refresh - self-serve, no contracts, free tier included.
Stop paying for bounces. Start with 75 free verified emails.
FAQ
Can Adapt.io replace ProsperFleet for fleet targeting?
No. Adapt.io filters by industry, revenue, and headcount, but it doesn't track fleet size or vehicle mix. If fleet-specific targeting is the requirement, ProsperFleet is purpose-built for it.
Does ProsperFleet publish pricing?
No. Expect $5,000-$20,000+/year depending on data volume and geographic scope. Annual contracts are standard, and there's no free trial or self-serve signup.
What if I need higher email accuracy than 90%?
Prospeo delivers 98% accuracy with a 7-day refresh cycle and a proprietary 5-step verification process. Use it as a verification layer on contacts from either tool to cut bounces before they damage your sender reputation. The free tier includes 75 email credits per month - enough to test before scaling.