Finding the right people to sell to is easier than ever. But choosing the right tool matters. Apollo, ZoomInfo, Lusha, Hunter.io, Skrapp or RocketReach? What each does, what they cost, and which one fits your startup.
A B2B contacts database is a software tool that helps you find, verify, and organise contact information for potential buyers. Think of it as the research layer that sits before your outbound strategy. You use it to identify who to reach, gather their email address or phone number, and understand enough about them to reach out with relevance.
These platforms are sometimes called “B2B Prospecting Tools” or “Sales Intelligence Platform” . They all solve the same core problem: getting you in front of the right person at the right company, with accurate enough data to actually make contact.
So, which are the best B2B contacts database is best and which should you choose?
Which B2B Contact database should I use?
Like any tool, you need to build a process around it to ensure you use it. Think of your last gym membership. The list of platforms is extensive but we’ve narrowed down a few we know about and worked with: Apollo, ZoomInfo, Lusha, Hunter.io, Skrapp and RocketReach.
Before you proceed, have you identified your Ideal Customer Profile (ICP)? If you are still validating it, use a free tier first before committing to any paid plan for your Deep Tech.
The next question is volume. Do you want to target a short list of people you have already identified? Or are you aiming to reach hundreds of contacts at scale with structured sequences?
Finally, what is your budget? To get started, look for something that covers the basics with a free starting plan. As you grow, you can gain access to better coverage, more filtering, and buyer intent signals. When you scale, you can unlock real-time buying signals and advanced account mapping.
We’ll go through each one to help you clarify your view on each tool.
Custom Research for Targeted Outreach
When you need accurate contact details for a short list of people you have already identified, go for Lusha and Hunter.io. They are precision tools we use at Sparksense to find the right email address or direct phone number before you reach out.
Lusha
| G2 Rating: 4.3 / 5 Free to ~$55 / user / month | PROS+ Contact Information Ease of Use Free tier available | CONS– Data accuracy |
Its strongest use case is finding verified direct dials for contacts you have already identified on LinkedIn. The buyer intent signals feature, Lusha Signals, shows which companies in your database are showing purchasing activity.
Best for: Teams doing targeted outreach who need direct phone numbers and work heavily within LinkedIn.
Hunter.io
| G2 Rating: 4.4 / 5 Free to ~$210 / month | PROS+ Contact Information Ease of Use Free tier available | CONS Email only, no phone numbers Limited Credits |
Hunter is built for one thing and does it well: finding and verifying professional email addresses from a company domain. If you know which company you want to reach and roughly who you are looking for, Hunter is fast, reliable, and transparent about what it can and cannot do.
Best for: Targeted outreach where you already know the company and need a clean, verified email address.
Large Scale Outbound Automation
If you need to build large prospect lists at speed and run structured outreach sequences across hundreds or thousands of contacts Apollo and ZoomInfo are strong options for you. These are not tools for testing your ICP. They are tools for scaling once you know exactly who you are targeting.
Apollo
| G2 Rating: 4.7 / 5 Free to ~$120 / user / month | PROS+ Ease of use Lead generation Free tier available | CONS– Missing Features Data accuracy inconsistent |
Apollo is the most commonly used entry point for outbound teams. It combines a company database, a contact finder, built-in email sequencing, and basic CRM functionality in one platform. The free tier is genuinely generous enough to test whether the data quality fits your target market before committing.
Best for: Teams that want prospecting and sequencing in a single tool without a large budget.
ZoomInfo
| G2 Rating: 4.5 / 5 From ~$15,000 / year Annual contract only | PROS+ Contact Information Ease of Use | CONS– Outdated Data No free tier Inaccurate Data |
ZoomInfo is the enterprise standard. It does not just tell you who someone is. It tells you whether their company is actively researching a problem like yours right now, which is what buyer intent signals means in practice. That capability justifies the price for teams with large deal sizes and enterprise buyers.
Best for: Sales teams with dedicated resources, large deal sizes, and budgets above $15,000 per year.
Not for: Early-stage startups validating their ICP or teams with fewer than five salespeople. Or anyone outside North America.
Additional Resources to add to your Outbound tools
When your primary tools don’t have the contacts you’re looking for, use Skrapp and RocketReach as a backup. They are broader in coverage and useful as a second option.
Skrapp
| G2 Rating: 4.0 / 5 Free to ~$100 / month | PROS+ Contact Information Ease of Use | CONS– Inaccurate Data Limited Free Credits |
Skrapp is built specifically for pulling verified email addresses from LinkedIn profiles and Sales Navigator lists. Its key differentiator is that it only charges you for emails that are actually verified, which keeps costs predictable. If your prospecting workflow lives inside LinkedIn, Skrapp is a natural complement to Lusha.
RocketReach
| G2 Rating: 4.4 / 5 $50 to ~$270 / month | PROS+ Contact Information Ease of Use | CONS– Inaccurate Data Missing Information No free tier |
RocketReach is the broadest database in this list in terms of geographic coverage, which makes it useful for teams prospecting outside the US and Western Europe where other tools tend to have weaker data.
Before You Reach Out: Know Your Sales Approach
Finding the contact is only the first step. Before you write a single email or pick up the phone, you need to know how you are going to structure that conversation. What are you going to say? How will you qualify whether this prospect is genuinely a fit for your solution?
BANT, MEDDIC, Solution Selling, Sandler, or SPIN? The Sparksense Sales Technique Configurator tells you which sales method fits your business model, your deal size, and your buyer profile.
Next? You need to turn those contacts into conversations, qualified leads, and closed deals for your Deep Tech. That requires the right tools properly configured, a tested outreach sequence that works for your specific ICP. And then to know when to push forward and when to walk away.
No time to waste? Talk to Sparksense about our professional outbound for deep tech.
Frequently Asked Questions
Which platform is best for deep tech startups with limited budgets?
Start with free tier platforms, identify which works best for your needs, validate your process, if it doesn’t suit your needs, try another one.
Do I need all of these platforms?
No. All these platforms are similar, so choosing a primary tool and a secondary one as backup would be better. Also each tool is different, learning how to effectively use two tools is better than poorly using 6 platforms.
How do these platforms relate to outbound sales?
These are B2B contact database platforms. They give you the contact data that feeds into your outbound activity. They are not your outbound strategy. You still need to know who to target, what to say, and how to qualify whether someone is a real opportunity.
