B2B contact database
Find your next customers in
450M+ B2B contacts.
Stop building prospect lists one profile at a time. Find decision-makers in your target market, organize them in Overloop and launch personalized email and LinkedIn campaigns from the same platform.
Source prospects. Organize your list. Start your campaign.
Your next prospect?Meet Jordan.
Sales leadership
Software companies
United Kingdom
Choose the roles you sell to.
Define your target companies.
Focus on the markets you serve.
450M+ B2B contactsFind the decision-makers you sell to.
Database, CSV & ChromeBring every prospect into one workspace.
Email + LinkedIn campaignsStart outreach where you find your leads.
From target market to prospect list
Build your next list.
Skip the manual prospect hunt.
You know who you sell to. Overloop helps you find them. Source prospects for a campaign or build a list first, then keep targeting and outreach in the same workspace.
Target the people who can buy.
Set the audience for your sourcing: the roles, companies and markets that fit your offer. Find prospects in the database instead of collecting profiles one by one.
Build from any starting point.
Start from the database, import an existing CSV or add prospects with the Chrome extension. Keep your sourced leads and your own lists together in the Prospects Hub.
Turn your list into a campaign.
Run email verification, then put your prospects into an email and LinkedIn sequence. Your contact data stays in Overloop as you move into outreach.
Built for your prospecting workflow
Your prospects.
Organized for the next campaign.
A list becomes useful when you can work with it. Search, filter and segment your prospects without rebuilding a spreadsheet for every campaign.
The details behind every contact
Open a prospect to see their details, activity, notes and attachments. Pick up the next touch with the account context in front of you.
Fixed lists and dynamic segments
Save a selected audience to a list. Use dynamic segments to group prospects as their data changes. Update shared fields across multiple records with bulk edit.
From contact data to a relevant pitch
Find the decision-maker.
Make the message about them.
A Head of Sales and a founder can work at the same company and care about different problems. Build audiences around the people you sell to, then tailor your campaign to their role, priorities and business.
A few useful answers
B2B contact database
questions, answered.
What is a B2B contact database?
A B2B contact database helps you discover professionals and companies that match the audience you want to reach. Overloop’s database is a source for building prospect lists and preparing outreach.
How many contacts are in the database?
Overloop gives you access to 450M+ B2B contacts. Search for prospects in your target market, then build lists for your campaigns. Coverage varies by role and market.
Can I bring my own prospect list?
Yes. You can import prospects from a CSV or add them with the Chrome extension. This lets your team work with its own research alongside prospects sourced from the database.
Should I verify emails before outreach?
Yes. Review verification results before adding addresses to a campaign. Contact records do not prove that a person still holds the same role and do not guarantee delivery. Use the record as a starting point for research.
How do I choose an audience?
Start with the problem you solve, the companies most likely to face it and the person responsible for it. Review a representative sample of prospects before expanding your outreach.
Does a contact record give me permission to email someone?
No. A database record is not consent. Campaign compliance depends on your audience, lawful basis and how you handle outreach and opt-outs. Review your intended use before starting a campaign.
Build your next pipeline
Your next prospect list
starts here.
Find decision-makers in 450M+ B2B contacts and bring them straight into your outreach workflow.