---
title: "Marketing & Advertising | Free Lead List | Warminboxes"
description: "Free download: Marketing & Advertising. 64,300 leads with 64,300 verified emails. Who this is for: martech platforms, white-label fulfillment, data providers…"
url: https://warminboxes.com/leads/marketing-advertising
breadcrumb: "Home > Free Leads Database > Marketing & Advertising"
---
Marketing

# Marketing & Advertising

64,300 leads with 64,300 verified emails · Free

64,300 marketing and advertising companies, built for 2026. Company and firmographic detail on every row, each one with an email attached.

Who this is for: martech platforms, white-label fulfillment, data providers, and lead-gen selling into agencies.

Before you send: re-verify the file first. The emails were valid when it was built and B2B data decays two to three percent a month, so a verification pass before your first send is the difference between a boring bounce rate and a burnt domain. Check the email rules for each recipient country too.

[Browse all 999 free lead lists →](https://warminboxes.com/leads)