ListKit is an all-in-one cold email platform built for B2B companies that want to send cold email at volume, without needing to become a cold email expert, manage multiple tools, or figure out the technical setup themselves.
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Before ListKit, running cold email meant stitching together six or more separate subscriptions: a leads database, an email verifier, a sending platform, a domain registrar, an inbox provider, and a copywriting tool. You would spend weeks setting everything up, and if anything broke, you were troubleshooting across multiple support teams.
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ListKit replaces that entire stack with one subscription, one platform, and one monthly bill.
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Every ListKit subscription is called a Bundle. Here is what is included in every Bundle, regardless of which sending volume tier you are on:
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B2B Database and AI Search
Access to a database of 977M+ B2B contacts. Emails are triple-verified when you export them. Use AI Search to describe your ideal customer in plain English, for example, "marketing agencies in the US with 10 to 50 employees", and get a targeted, export-ready leads list in minutes. No Boolean queries or advanced filters required.
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Triple Verification Engine
Every lead you export is triple-verified at the point of export, checking email validity, catch-all detection, and risky addresses. This is what keeps your bounce rates low and your sender reputation protected.
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Domains and Inboxes
Sending domains and Google inboxes are registered, configured, and warmed up for you. You pick the domain names you like, ListKit covers the cost and handles the full technical setup. The recommended option is pre-warmed domains and inboxes, which are already warmed and can send within minutes. You can also generate new branded domains, which need 14 days of warmup, plus up to 72 hours to register domains and start warmup (about 2 to 3 weeks from signup). Domains are included free for as long as you are subscribed.
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Email Engine
ListKit's sending platform. Connect your inboxes, import your leads, generate your email sequence, and launch. All campaign settings, sending windows, warmup schedules, follow-up cadences, deliverability toggles, are pre-configured with expert defaults so you never have to guess.
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AI Script Writing Agent
An AI copywriting tool trained on hundreds of real, high-performing ListKit campaigns. Give it your offer and your target audience, and it generates a complete 3-step cold email sequence with A/B variants ready to test (100 credits per generation). No copywriting experience needed.
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Cold Email Mastery Course
A step-by-step in-app education course that walks you through your first campaign, from building a leads list to handling positive replies.
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1-on-1 Concierge Onboarding Call
A live video call with a ListKit campaign expert to check your domains and inboxes and build your first leads list with you.
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VIP Slack Community
Access to a private Slack community with weekly office hours and live webinars.
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Dream 100 Launch Bonus
A training video and up to $100 in gift cards ($25 per attended call, max 4) to help you start booking meetings from your main inbox while your sending inboxes are warming up.
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For the full breakdown by tier, see What is ListKit Bundles and what does it include? and How is Bundles pricing calculated?.
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Pre-warmed inboxes (recommended): first send within minutes, full volume after a 7-day ramp-up. New branded domains: 14 days of warmup, plus up to 72 hours to register domains and start warmup (about 2 to 3 weeks from signup), then the same ramp-up. Here is the full flow:
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Step 1 - Set up your domains and inboxes
Right after subscribing, click your initials at the bottom left, select Billing, and click Setup Now under Bundle Setup. Choose Use pre-warmed domains and inboxes (recommended). Setup takes 10 to 15 minutes, and then you get an email to book your onboarding call.
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Step 2 - Build your leads list
Use AI Search to find your ideal customers inside the B2B database. Describe who you want to reach, select your contacts, and export a triple-verified list directly into your campaign.
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Step 3 - Generate your cold email sequence
Use the AI Script Writer to generate a 3-step email sequence tailored to your offer and audience. Review it, make any edits, and it is ready to launch.
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Step 4 - Launch your campaign
Once your inboxes are ready (within minutes for pre-warmed inboxes, after warmup for new branded domains), connect your inboxes to your campaign, import your leads list, add your scripts, and hit start. Email Engine handles sending, rotation, follow-ups, and deliverability automatically.
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Step 5 - Manage replies in Master Inbox
All replies from all campaigns come into one place, the Master Inbox. Replies are automatically categorized (Interested, Meeting Booked, Out of Office and more) so you can focus on the conversations that matter.
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ListKit handles:

You handle:

You do not need to be technical. You do not need cold email experience. The platform is built so that the only decisions you make are about your business, not about infrastructure.
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With pre-warmed inboxes, your first campaign can be live in your first week. With new branded domains, plan for about 2 to 3 weeks from signup (up to 72 hours to register domains and start warmup, then 14 days of warmup). From there, results compound as you launch more campaigns, refine your targeting, and improve your scripts over time.
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A conservative benchmark is 1 positive reply per 1,000 people contacted. At 1,000 emails per day, that is roughly 1 new client per month once campaigns have run for 46 to 60 days, depending on your offer, your ICP, and your close rate from meetings. See What should I expect from my ListKit campaigns in the first 90 days?. The ROI calculator at listkit.io can help you model what your specific numbers might look like.
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Do I need any technical experience to use ListKit?
No. All technical setup, domains, inboxes, warmup, deliverability settings, is handled by ListKit. Your job is to define who you want to target and what you want to say.
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How long before I can start sending emails?
It depends on your setup option. Pre-warmed inboxes (recommended) can send 5 to 10 minutes after setup, then ramp up over 7 sending days from 1 to 25 emails per inbox per day. New branded domains need up to 72 hours to register domains and start warmup, then 14 days of warmup (about 2 to 3 weeks from signup), before the same ramp-up.
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Is this a done-for-you service?
No. ListKit handles all the technical infrastructure, but you build your own leads list, review your own scripts, and manage your own campaigns. The tools make this straightforward even if you are completely new to cold email.
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What if I need help getting started?
Your subscription includes a 1-on-1 onboarding call with a ListKit campaign expert, access to the Cold Email Mastery Course, and an active Slack community with weekly office hours.
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Can I send cold email to any industry?
Yes. ListKit's B2B database covers virtually every industry. The Search Filters and AI Search are flexible enough to build targeted lists for almost any niche.