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Companies using Postmark by Wildbit LLC in 2025

As of 2025, 1,709 verified companies use Postmark – across industries, company sizes, and geographies. This is real, verified data. Whether you’re looking to analyze the market, build a target list, or get a sales edge – this is your starting point.

https://www.wildbit.com

What is Postmark by Wildbit LLC?

Postmark by Wildbit, is a delivery platform for application emails. It excels at reliably sending transactional emails, such as password resets, welcome messages, and shipping notifications. It’s widely used by developers and marketing teams to ensure high deliverability and insightful analytics.

Last updated date

August 17, 2025

Number of Companies using

1,709

The majority are based in the

United States

Most common industry?

Business Services

Postmark’s sample user list in 2025

Company Name

Country

Industry

Employees

Revenue

Product

IBM

United States flag
United States

Custom Software & IT Services

270300

$62.8B

Postmark

Toyota Motor Corporation

Japan flag
Japan

Motor Vehicles

380793

$286.4B

Postmark

RR Donnelley & Sons

United States flag
United States

Advertising & Marketing

35000

$10B

Postmark

Shopify

Canada flag
Canada

Customer Relationship Management (CRM) Software

8300

$7.8B

Postmark

Windstream Intellectual Property Services

United States flag
United States

Internet Service Providers, Website Hosting & Internet-related Services

11080

$6.1B

Postmark

ByteDance

China flag
China

Content & Collaboration Software

150000

$120B

Postmark

CME Group

United States flag
United States

Lending & Brokerage

3760

$6.3B

Postmark

Linamar

Canada flag
Canada

Automotive Parts

34000

$7.7B

Postmark

Ettus Research

United States flag
United States

Telecommunication Equipment

10000

$3.3B

Postmark

Proofpoint

United States flag
United States

Security Software

4500

$785.1M

Postmark

Showing 10 of 1,709 results

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We have data on 1,709 companies that use Postmark. Our Postmark customers list is available for download and comes enriched with vital company specifics, including industry classification, organizational size, geographical location, funding rounds, and revenue figures, among others.

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Postmark users and customers by country

United States flag
United States
United Kingdom flag
United Kingdom

2.6K Companies

Canada flag
Canada

2.6K Companies

Australia flag
Australia

2.6K Companies

Switzerland flag
Switzerland

2.6K Companies

Where Postmark Shows Up Most

Postmark is used across a wide range of sectors:

Business Services

Software

Manufacturing

Retail

Custom Software & IT Services

From lean startups to global enterprises, Postmark’s footprint is wide, and that means opportunity.

sectors

How It Works

It’s everything you wish outbound was—automated, precise, and scalable.

  • Landbase finds and qualifies your ideal prospect data automatically
  • Landbase deploys specialized AI agents to generate and run high-converting campaigns
  • Landbase executes across all channels, handling all the technical complexity behind the scenes.
  • Your pipeline fills up. You get to focus on strategy, not busywork.

Trusted by High-Performing GTM Teams

Join the teams using Landbase to:

  • Eliminate manual prospecting
  • Fill pipeline faster
  • Win against competitors
  • Built for SDRs, AEs, RevOps, and GTM Leaders
  • Powered by AI. Delivered with Speed

This data is updated on August 17, 2025

Postmark is a delivery platform for application emails, specializing in transactional emails like password resets, welcome messages, and shipping notifications. It’s offered by Wildbit LLC.

As of 2025, there are 1,709 verified companies using Postmark.

Postmark primarily focuses on transactional emails, such as password resets, welcome messages, and shipping notifications.

Postmark ensures high deliverability and provides insightful analytics for application emails.

The United States has the highest number of companies using Postmark, followed by United Kingdom, Canada, Australia and Switzerland.