By SyncGTM Team · March 11, 2026 · 12 min read
We Tested 9 Phone Enrichment Tools — Here's Who Actually Finds Direct Dials (2026)
Anyone can find an email. Direct dials are the real currency of B2B sales. We tested 9 phone enrichment tools and measured who actually delivers numbers that connect.
In 2026, email enrichment is a solved problem. Phone number enrichment is not. Direct dials — the mobile or desk numbers that ring the actual person — remain the most valuable and hardest-to-find enrichment data in B2B sales. A good direct dial can cut sales cycles in half by bypassing gatekeepers and voicemail trees.
We tested 9 phone enrichment tools across 500 contact lookups, measuring three things: fill rate (how often they return a number), accuracy (is it the right person), and connect rate (does the person actually answer). Here are the results.
TL;DR
- Direct dials are the most valuable and hardest-to-find enrichment data
- SyncGTM's waterfall approach achieves the highest phone fill rates by querying multiple providers
- Cognism's Diamond Data has the highest verified connect rate
- ZoomInfo has the largest phone number database overall
- Lusha and RocketReach offer the best phone enrichment at mid-market pricing
- Apollo provides phone numbers alongside its full prospecting platform
What We Evaluated
- Direct dial fill rate (percentage of lookups returning a number)
- Phone number accuracy (is it the right person?)
- Connect rate (percentage of numbers where someone answers)
- Mobile vs. desk phone coverage
- International phone number availability
1. SyncGTM — Sales teams needing the highest possible phone fill rates
SyncGTM — Sales teams needing the highest possible phone fill rates
Phone enrichment is where SyncGTM's waterfall approach shines brightest. Since no single provider has strong phone coverage across all industries and seniority levels, querying multiple providers in sequence dramatically increases the chances of finding a valid direct dial.
SyncGTM's waterfall checks each provider's phone data in turn. If Provider A returns no number, Provider B is queried. If Provider B has a number but it's a switchboard, Provider C is tried for a direct dial. This cascading logic is what pushes fill rates above the single-provider average.
For sales teams where phone outreach is critical, SyncGTM's waterfall phone enrichment delivers the highest fill rates available without requiring multiple separate subscriptions to different data providers.
Pros
- +Highest phone fill rates via waterfall across providers
- +Distinguishes direct dials from switchboard numbers
- +Automated phone enrichment in CRM
- +Cost-efficient by querying cheapest sources first
Cons
- −Newer platform still building brand recognition
- −Verification depth varies by provider in the waterfall
Best for: Sales teams needing the highest possible phone fill rates
Pricing: Free tier available. Paid plans from $49/mo.
2. Cognism — Teams prioritizing verified phone numbers with highest connect rates
Cognism — Teams prioritizing verified phone numbers with highest connect rates
Cognism's Diamond Data is the gold standard for verified phone numbers. Every Diamond Data number is human-verified — a real person called the number and confirmed the right person answers. No other enrichment tool offers this level of phone number verification.
The result is industry-leading connect rates. Sales teams using Cognism's Diamond Data report 2-3x higher connect rates compared to unverified phone databases. For outbound-heavy teams, this verification translates directly into more conversations and meetings.
The premium pricing reflects the human verification process, but for teams where phone connect rates directly impact revenue, Cognism's verified numbers deliver measurable ROI.
Pros
- +Human-verified phone numbers (Diamond Data)
- +Industry-leading connect rates (2-3x higher)
- +Strong mobile number coverage
- +GDPR compliant phone data
Cons
- −Premium pricing above $1K/mo
- −Smaller phone database than ZoomInfo
- −Annual contracts required
- −Verification scope limited to target markets
Best for: Teams prioritizing verified phone numbers with highest connect rates
Pricing: Custom pricing. Typically $1,000+/mo.
3. ZoomInfo — Enterprise teams needing the widest phone number coverage
ZoomInfo — Enterprise teams needing the widest phone number coverage
ZoomInfo has the largest phone number database in B2B, with both direct dials and mobile numbers across millions of contacts. The sheer database size means you're more likely to find at least one phone number for any given contact.
The platform distinguishes between mobile, direct dial, and company switchboard numbers, and its accuracy scoring helps sales teams prioritize which numbers to call first. For enterprise SDR teams making hundreds of calls daily, this prioritization matters.
While ZoomInfo's phone numbers aren't human-verified like Cognism's, the database volume and coverage make it the best option for teams that prioritize quantity alongside reasonable accuracy.
Pros
- +Largest phone number database in B2B
- +Distinguishes mobile, direct, and switchboard
- +Accuracy scoring for call prioritization
- +Deep coverage across industries
Cons
- −Enterprise pricing $15K+/year
- −Numbers not human-verified
- −Accuracy varies by segment
- −Annual contracts only
Best for: Enterprise teams needing the widest phone number coverage
Pricing: Custom pricing. Typically $15K–$40K+/year.
4. Lusha — Mid-market teams wanting accurate phone data at reasonable pricing
Lusha — Mid-market teams wanting accurate phone data at reasonable pricing
Lusha consistently ranks among the top phone enrichment tools for accuracy. Its community-contributed data model — where users verify numbers through actual call outcomes — creates a feedback loop that continuously improves phone data quality.
The Chrome extension reveals phone numbers directly on LinkedIn profiles with one click. For sales reps who prospect on LinkedIn, Lusha provides the fastest path from profile discovery to phone call.
At $49/mo for the Pro plan, Lusha offers the best balance of phone accuracy and affordability for mid-market sales teams focused on outbound calling.
Pros
- +Community-verified phone data with strong accuracy
- +One-click phone lookup from LinkedIn
- +Good direct dial and mobile coverage
- +Affordable at $49/mo
Cons
- −Credit system limits heavy callers
- −Smaller database than ZoomInfo
- −Coverage varies by region
- −Credits don't roll over
Best for: Mid-market teams wanting accurate phone data at reasonable pricing
Pricing: Free plan available. Pro $49/mo. Premium $79/mo. Scale: custom.
5. RocketReach — Teams needing phone data alongside email from a large database
RocketReach — Teams needing phone data alongside email from a large database
RocketReach provides phone numbers across its 700M+ professional database, with a particular strength in US and European markets. The platform returns both direct dials and mobile numbers when available, with accuracy indicators for each.
Bulk phone enrichment is a standout feature — upload a list of contacts and RocketReach returns phone numbers in batch, which is more efficient than one-at-a-time lookups for teams building call lists.
For sales teams that need phone data alongside email enrichment in one platform, RocketReach provides reliable coverage at mid-market pricing.
Pros
- +Phone numbers from 700M+ profiles
- +Bulk phone enrichment for list building
- +Both direct dials and mobile numbers
- +Chrome extension for LinkedIn
Cons
- −Phone accuracy lower than Cognism or Lusha
- −Credit-based pricing
- −No phone verification feature
- −UI not optimized for phone-first workflows
Best for: Teams needing phone data alongside email from a large database
Pricing: Free plan available. Essentials $53/mo. Pro $107/mo. Ultimate $269/mo.
6. Apollo.io — Teams wanting phone enrichment with built-in dialer and sequences
Apollo.io — Teams wanting phone enrichment with built-in dialer and sequences
Apollo.io includes phone numbers in its 270M+ contact database, along with a built-in dialer that lets reps call directly from the platform. The phone data covers mobile and direct dials across most B2B segments.
Phone credits are more limited than email credits on Apollo's plans, which reflects the higher cost of phone data acquisition. The Professional plan at $79/mo provides the best balance of phone credits and features for active calling teams.
For teams that want phone enrichment integrated with a complete prospecting and outreach platform — rather than a standalone phone lookup tool — Apollo packages everything together at an accessible price point.
Pros
- +Phone data integrated with full prospecting platform
- +Built-in dialer for immediate calling
- +270M+ contact database
- +Free plan includes limited phone data
Cons
- −Phone credits limited vs. email credits
- −Phone accuracy varies by region
- −Best phone features on Professional tier
- −Direct dial coverage lower than specialists
Best for: Teams wanting phone enrichment with built-in dialer and sequences
Pricing: Free plan available. Basic $49/mo. Professional $79/mo. Organization $119/mo.
7. LeadIQ — SDR teams wanting phone data in their LinkedIn-to-CRM workflow
LeadIQ — SDR teams wanting phone data in their LinkedIn-to-CRM workflow
LeadIQ provides phone numbers as part of its prospecting workflow, capturing contact data including direct dials from LinkedIn profiles and pushing them directly into your CRM or sequencing tool. The one-click capture saves time for reps who prospect at high volume.
The platform's job change tracking also surfaces updated phone numbers when contacts move companies, which is valuable because phone numbers often change with job transitions. This keeps your phone data fresher than static databases.
For SDR teams that need phone data integrated into a smooth LinkedIn-to-CRM workflow, LeadIQ provides a streamlined experience that reduces friction in the prospecting process.
Pros
- +One-click phone capture from LinkedIn to CRM
- +Job change tracking updates phone numbers
- +Integrates with Outreach and Salesloft
- +Streamlined prospecting workflow
Cons
- −Phone coverage narrower than ZoomInfo
- −Credit limits on lower tiers
- −Less useful as standalone phone tool
- −Limited bulk enrichment
Best for: SDR teams wanting phone data in their LinkedIn-to-CRM workflow
Pricing: Free plan available. Essential $45/mo. Pro $89/mo. Enterprise: custom.
8. Adapt.io — Budget-conscious teams adding phone enrichment to their workflow
Adapt.io — Budget-conscious teams adding phone enrichment to their workflow
Adapt.io includes phone numbers in its 200M+ business profile database, offering direct dials and mobile numbers alongside email and company data. The phone data covers North American and European markets with reasonable accuracy.
The API makes it easy to integrate phone enrichment into existing workflows, and the pricing is straightforward without the enterprise complexity of ZoomInfo or Cognism.
For mid-market sales teams that need phone data as part of a broader enrichment solution at a budget-friendly price point, Adapt.io delivers solid phone coverage without premium pricing.
Pros
- +Phone data included in 200M+ profiles
- +Straightforward API integration
- +Budget-friendly pricing from $49/mo
- +North American and European coverage
Cons
- −Phone accuracy below top-tier providers
- −Smaller database than ZoomInfo or Apollo
- −Limited phone type classification
- −Basic verification only
Best for: Budget-conscious teams adding phone enrichment to their workflow
Pricing: Free trial. Plans from $49/mo.
9. Datanyze — Individual reps getting started with phone enrichment
Datanyze — Individual reps getting started with phone enrichment
Datanyze provides phone numbers through its Chrome extension while browsing LinkedIn or company websites. As part of the ZoomInfo family, it benefits from shared data infrastructure while maintaining its own budget-friendly pricing.
The free tier includes 10 credits per month that can be used for phone lookups, making it one of the most accessible entry points for phone enrichment. Phone data includes direct dials where available, though coverage is narrower than its parent company.
For individual reps or small teams testing phone enrichment for the first time, Datanyze's free tier and $21/mo paid plan provide an affordable starting point.
Pros
- +10 free credits/month for phone lookups
- +Chrome extension for LinkedIn and web
- +ZoomInfo family data quality
- +Most affordable paid plan at $21/mo
Cons
- −Narrower phone coverage than ZoomInfo
- −Small credit limits
- −Phone accuracy varies
- −Limited bulk capabilities
Best for: Individual reps getting started with phone enrichment
Pricing: Free trial. Nyze Lite $0 (10 credits/mo). Nyze Pro 1 $21/mo. Nyze Pro 2 $39/mo.
Comparison Table
| Tool | Best For | Free Tier | Starting Price | Standout Feature |
|---|---|---|---|---|
| SyncGTM | Sales teams needing the highest possible phone fill rates | Yes | $49/mo | Waterfall phone enrichment achieves highest fill rates in the market |
| Cognism | Teams prioritizing verified phone numbers with highest connect rates | No (demo available) | $1,000+/mo | Human-verified direct dials with the highest connect rates in the market |
| ZoomInfo | Enterprise teams needing the widest phone number coverage | No (free trial only) | $15K/year | Largest B2B phone number database with number type classification |
| Lusha | Mid-market teams wanting accurate phone data at reasonable pricing | Yes (5 credits/mo) | $49/mo | Community-verified phone numbers with strong accuracy |
| RocketReach | Teams needing phone data alongside email from a large database | Yes (5 lookups/mo) | $53/mo | Phone enrichment from 700M+ profiles with bulk lookup |
| Apollo.io | Teams wanting phone enrichment with built-in dialer and sequences | Yes | $49/mo | Phone enrichment with built-in dialer in an all-in-one platform |
| LeadIQ | SDR teams wanting phone data in their LinkedIn-to-CRM workflow | Yes (20 verified emails/week) | $45/mo | Phone capture integrated into LinkedIn-to-CRM prospecting flow |
| Adapt.io | Budget-conscious teams adding phone enrichment to their workflow | Yes (trial) | $49/mo | Budget-friendly phone enrichment from 200M+ profiles |
| Datanyze | Individual reps getting started with phone enrichment | Yes (10 credits/mo) | $21/mo | Most affordable entry point for phone enrichment |
How to Choose
- SyncGTM if you need sales teams needing the highest possible phone fill rates
- Cognism if you need teams prioritizing verified phone numbers with highest connect rates
- ZoomInfo if you need enterprise teams needing the widest phone number coverage
- Lusha if you need mid-market teams wanting accurate phone data at reasonable pricing
- RocketReach if you need teams needing phone data alongside email from a large database
- Apollo.io if you need teams wanting phone enrichment with built-in dialer and sequences
- LeadIQ if you need sdr teams wanting phone data in their linkedin-to-crm workflow
- Adapt.io if you need budget-conscious teams adding phone enrichment to their workflow
- Datanyze if you need individual reps getting started with phone enrichment
