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LIMITED SPOTS
All plans are 30% OFF for the first month! with the code WELCOME303
High-volume outbound only works when your data can keep up. You might have solid messaging, a trained sales team, and clear targets, but if your lead source is weak, everything slows down. Reps waste time filtering bad contacts, reply rates drop, and campaigns stall before they ever reach scale.
A strong B2B lead database solves that by giving you consistent access to fresh, relevant contacts you can actually reach. The difference shows up quickly in deliverability, response rates, and pipeline velocity.
In this guide, we break down the five best B2B lead databases for high-volume sales. We look at data accuracy, filtering depth, enrichment quality, and how each platform performs at scale. By the end, you’ll know which tools are best for sourcing large volumes of outbound leads without sacrificing relevance or control.
Instantly takes the top spot thanks to Supersearch, an AI-powered search engine designed to make navigating Instantly’s 450 million-plus leads fast, intuitive, and highly precise. Simply describe your ideal customer profile in plain language and let Supersearch highlight the most relevant prospects, so you don't have to wrestle with manual list building.
What makes this even more powerful is the depth and quality of the data behind it. Instantly delivers broader coverage and higher accuracy with information aggregated from over seven data providers. You can further narrow your results using advanced filters such as company size, revenue targets, and technologies, ensuring every lead aligns with your campaign goals.
450 million leads: Build a robust list, drawing from over 450 million verified leads.
Supersearch: Find the exact leads you need to progress your campaign with Supersearch.
Waterfall enrichment: With data drawn from over seven providers, no contact is out of reach.
Unlimited email accounts: Scale your outreach as necessary with unlimited email accounts.
Buying signals: Find leads who are ready to hear you out with intent signals.
14-day free trial available.
Growth: $47/month.
Supersonic: $97/month.
Hyper Credits: $197/month.
Supersearch saves you time by cutting out the need for filtering.
Offers additional filters for deliverability and outreach.
Comes with a powerful CRM for engagement management.
Affordable entry-level plan.
The user interface is easy to understand.
The platform’s wealth of features makes it a little intimidating without guidance.
Cognism is an great choice for teams that prioritize high-quality data and direct access to decision-makers. Its Diamond Data is known for being consistently refreshed and highly accurate, giving sales teams confidence that they’re reaching real, active prospects. With this tool, you also get 90% coverage of director-level and above contacts across Europe and the United States.
Buyer signals: Find leads who are ready to hear you out.
Data fusion engine: Data sourced from across the internet, stitched together, and filtered for the best leads.
Integration: Feed Cognism’s data directly into your custom campaign interface.
No publicly available pricing information.
Offers highly accurate EMEA data.
Integrates seamlessly with a long list of tools and services.
Occasional lags during large data exports.
Prospector drop-down menu can be challenging to navigate at times.
Saleshandy offers access to over 700 million professional profiles—60 million of which are detailed company profiles—giving sales teams a massive pool to draw from during large outbound campaigns. This breadth of data makes it easier to target the right prospects across industries.
Sequence score: Know how effective your outreach is at a glance.
Unified inbox: Manage all correspondence from the same inbox.
AI prospect enrichment: Customize your outreach to suit each prospect.
Lead Starter: $35/month
Lead Pro: $69/month
Lead Scale: $119/month
Lead Scale Plus: Custom pricing depending on needs.
Built-in suite of AI-enhanced functions for campaign optimization.
Highly scalable to match even high-volume campaigns.
Limited CRM integrations.
Initial credit limits can feel restrictive for new users.
ZoomInfo is built for teams that need both scale and smarter targeting. With access to over 260 million professional profiles, including 100 million analyzed company profiles, it provides deep insight into who you’re reaching. ZoomInfo also scores prospects on a 1–100 intent and fit scale to streamline lead selection and make it easier for sales teams to prioritize high-value leads.
ZoomInfo Copilot: Have the ideal leads be suggested to you.
Account insights: Track your campaign progression and performance.
Advanced audience targeting: Precisely target the right leads with hundreds of company insights.
No publicly available pricing information.
Combines accurate data with automation tools for effective lead generation.
Easy-to-use features.
Automated marketing is on the expensive side.
Users have complained about their support interactions.
UpLead is a solid choice for sales teams that care about data recency. It offers access to over 180 million leads, all of which are AI-verified in real time as you search, helping reduce bounce rates before a campaign launches. Leads are also sorted by freshness, making it easy to prioritize recently updated contacts and ensure outreach is hitting active contacts.
Prospector: Search through 180+ million leads with 95% accuracy.
Data enrichment: Enhance your existing leads and get contacts you can reach.
Chrome extension: Find the leads you need while surfing the web.
Free trial available.
Essentials: $74/month
Plus: $149/month
Enterprise plan available.
Offers both lead generation and verification simultaneously.
The leads generated are high-quality.
The entry-level plan is on the pricier side
Limited free credits make it hard to fully assess the platform before purchase.
The lead database you choose sets the ceiling for your outbound performance. Among the tools covered, Instantly stands out as the most well-rounded option for high-volume teams, combining a 450M+ contact database with Supersearch’s AI-driven ICP matching to help you scale without losing relevance.
That said, other tools still have clear use cases. Cognism is a strong choice for teams focused on senior decision-makers and compliance-led data, while Saleshandy works well when sheer contact volume across people and companies is the priority.
Stop stitching together outdated lists. Try Instantly and turn high-volume outreach into a predictable growth channel.
AI tools to find & convert leads. 
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