Insights

Niche Market Focus Postbox targets users seeking powerful yet easy-to-use email management solutions, making it ideal for professionals and small teams who need efficient inbox handling and productivity tools.

Privacy Emphasis With a strong commitment to user privacy, Postbox does not read or store emails or passwords, which appeals to security-conscious customers and organizations looking for trustworthy email clients.

Recent Acquisition Postbox was acquired by eM Client Inc in October 2024, potentially opening up cross-selling opportunities and integration possibilities with eM Client's existing customer base.

Product Innovation The launch of version 7 with new features like Lab Experiments and fully customizable interface indicates ongoing innovation, presenting opportunities to upsell or promote premium features.

Small Yet Agile As a small company with less than 10 employees, Postbox is likely receptive to strategic partnerships, B2B collaborations, or targeted marketing efforts aimed at niche market segments.

Similar companies to Postbox

Postbox Tech Stack

Postbox uses 8 technology products and services including Crazy Egg, Google Workspace, Font Awesome, and more. Explore Postbox's tech stack below.

  • Crazy Egg
    Analytics
  • Google Workspace
    Email
  • Font Awesome
    Font Scripts
  • TweenMax
    Javascript Frameworks
  • JSON-LD
    Javascript Frameworks
  • Slick
    Javascript Libraries
  • Yii
    Web Frameworks
  • Magnific Popup
    Web Tools And Plugins

Postbox's Email Address Formats

Postbox uses at least 1 format(s):
Postbox Email FormatsExamplePercentage
First@postbox-inc.comJohn@postbox-inc.com
100%

Frequently Asked Questions

Where is Postbox's headquarters located?

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Postbox's main headquarters is located at 809 Laurel Street #999 San Carlos, California 94070 United States. The company has employees across 3 continents, including AsiaEuropeNorth America.

What is Postbox's phone number?

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You can contact Postbox's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

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

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Postbox's official website is postbox-inc.com and has social profiles on LinkedIn.

What is Postbox's NAICS code?

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Postbox's NAICS code is 5112 - Software Publishers.

How many employees does Postbox have currently?

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As of May 2026, Postbox has approximately 6 employees across 3 continents, including AsiaEuropeNorth America. Key team members include Partner: V. H.. Explore Postbox's employee directory with LeadIQ.

What industry does Postbox belong to?

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Postbox operates in the Software Development industry.

What technology does Postbox use?

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Postbox's tech stack includes Crazy EggGoogle WorkspaceFont AwesomeTweenMaxJSON-LDSlickYiiMagnific Popup.

What is Postbox's email format?

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Postbox's email format typically follows the pattern of First@postbox-inc.com. Find more Postbox email formats with LeadIQ.

When was Postbox founded?

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Postbox was founded in 2007.

Postbox

Software DevelopmentCalifornia, United States2-10 Employees

Postbox is a software development company that provides a desktop email client aimed at boosting productivity and speed. It combines straightforward usability with features to manage large inbox workloads, including advanced search, macros, tagging, and extensive keyboard shortcuts. The client supports professional email creation with pre-canned responses, content blocks, and signatures, and enables fast large-file sharing through links from cloud services, and it runs on macOS and Windows. Based in San Carlos, California, the company operates as a small firm that prioritizes privacy, not reading or storing emails or passwords, and not serving ads or sharing user data with third parties. In October 2024, Postbox was acquired by eM Client, Inc., marking a notable development in its corporate status.

Section iconCompany Overview

Headquarters
809 Laurel Street #999 San Carlos, California 94070 United States
Phone number
NAICS Code
5112 - Software Publishers
Founded
2007
Employees
2-10

Section iconFunding & Financials

  • $1M

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

Section iconFunding & Financials

  • $1M

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

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