Insights

Developer Focus Postmark emphasizes a developer-friendly transactional email API with fast, reliable delivery, making it a strong fit for engineering teams building apps that depend on dependable inbox performance.

Innovation Momentum Ongoing platform innovation, including the Model Context Protocol server and a Postman Collection, expands the developer tooling ecosystem and enables new integration scenarios to upsell to technical buyers.

Competitive Positioning Competitiveness with Brevo and other transactional email providers can be addressed by highlighting deliverability quality, API-first workflows, and a strong developer experience to win on reliability and ease of integration.

Growth & Synergy As part of a lean, growing company with the option to leverage the ActiveCampaign ecosystem, there is an opportunity to upsell to broader CRM automation customers or mid-market teams needing scalable transactional email alongside marketing tools.

Tech Stack Fit A stack that includes RabbitMQ, SQL, Handlebars, HTML, JS, and Apache supports seamless integrations; emphasize robust docs, samples, and event-driven capabilities to reduce adoption risk for new customers.

Similar companies to Postmark

Postmark Tech Stack

Postmark uses 8 technology products and services including Twitter Ads, SQL, Handlebars, and more. Explore Postmark's tech stack below.

  • Twitter Ads
    Advertising
  • SQL
    Database
  • Handlebars
    Javascript Frameworks
  • Priority Hints
    Performance
  • HTML
    Programming Languages
  • JavaScript
    Programming Languages
  • RabbitMQ
    Software Framework
  • Apache
    Web Servers

Postmark's Email Address Formats

Postmark uses at least 1 format(s):
Postmark Email FormatsExamplePercentage
FLast@postmarkapp.comJDoe@postmarkapp.com
78%
First@postmarkapp.comJohn@postmarkapp.com
22%

Frequently Asked Questions

Where is Postmark's headquarters located?

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Postmark's main headquarters is located at Chicago, Illinois United States. The company has employees across 2 continents, including North AmericaEurope.

What is Postmark's official website and social media links?

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Postmark's official website is postmarkapp.com and has social profiles on LinkedIn.

What is Postmark's NAICS code?

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Postmark's NAICS code is 5112 - Software Publishers.

How many employees does Postmark have currently?

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As of May 2026, Postmark has approximately 15 employees across 2 continents, including North AmericaEurope. Key team members include Head Of Sales: M. V.Senior Software Engineer: J. C.Software Engineer: J. F. D.. Explore Postmark's employee directory with LeadIQ.

What industry does Postmark belong to?

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Postmark operates in the Software Development industry.

What technology does Postmark use?

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Postmark's tech stack includes Twitter AdsSQLHandlebarsPriority HintsHTMLJavaScriptRabbitMQApache.

What is Postmark's email format?

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Postmark's email format typically follows the pattern of FLast@postmarkapp.com. Find more Postmark email formats with LeadIQ.

When was Postmark founded?

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Postmark was founded in 2010.

Postmark

Software DevelopmentIllinois, United States11-50 Employees

Postmark provides an email delivery service with an SMTP interface and a reliable email API designed to help messages reach the inbox quickly and reliably. It operates in the software development industry and is headquartered in Chicago, Illinois, United States. The company has 11-50 employees and maintains the website postmarkapp.com. Recent developments include the 2025 launch of the Model Context Protocol server and the 2024 release of an official Postman Collection for Postmark. Coverage in 2026 identifies Brevo, Inc. as a competitor in the transactional email space.

Section iconCompany Overview

Headquarters
Chicago, Illinois United States
NAICS Code
5112 - Software Publishers
Founded
2010
Employees
11-50

Section iconFunding & Financials

  • $1M$10M

    Postmark's revenue is estimated to be in the range of $1M$10M

Section iconFunding & Financials

  • $1M$10M

    Postmark's revenue is estimated to be in the range of $1M$10M

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