About PostX
PostX is a company based in Cupertino (United States) founded in 1994 was acquired by IronPort Systems in November 2006. PostX has raised $16.7 million across 5 funding rounds from investors including Charles Schwab, IronPort Systems and Mayfield. PostX operates in a competitive market with competitors including Virtru, Skiff, BombBomb, Astro and AppRiver, among others.
- Headquarter Cupertino, United States
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Sectors
Technology
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Phone
Locked
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Website
Locked
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Social
Locked
- Legal Name Postx Corporation
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Annual Revenue
Not available
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Net Profit
Not available
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EBITDA
Not available
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Total Equity Funding
$16.7 M (USD)
in 5 rounds
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Latest Funding Round
$5.7 M (USD), Series E
Feb 01, 2006
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Investors
Charles Schwab
& 4 more
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Employee Count
Not available
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Acquired by
IronPort Systems
(Nov 01, 2006)
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Funding Insights of PostX
PostX has successfully raised a total of $16.7M across 5 strategic funding rounds. The most recent funding activity was a Series E round of $5.7 million completed in February 2006. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
Investors in PostX
PostX has secured backing from 5 investors, including venture fund and institutional investors. Prominent investors backing the company include Charles Schwab, IronPort Systems and Mayfield.
| Investor | Description | Founded Year | Domain | Location |
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Mayfield is focused on AI innovation and venture capital investments.
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Early stage venture capital firm investing in the US
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Manages diversified investment portfolios across various asset classes for clients.
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Investor details for PostX
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Investments & Acquisitions by PostX
Investment portfolio details for PostX
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Financial Statements - PostX
Detailed financials for PostX
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Postx Comparisons
Peer comparison for PostX
Named peer metrics, headcount, funding, location, and side-by-side benchmarks require an active premium plan.
- Named peers
- Headcount comparison
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Competitors of PostX
PostX operates in a dynamic and competitive business environment, facing competition from various established players and emerging companies in the market. The competitive landscape includes prominent companies such as Virtru, Skiff, BombBomb, Astro and AppRiver, among others.
| Company Name | Domain | Founded year | HQ Location | Description |
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| Locked | Locked | Locked |
Encryption and access control for emails
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| Locked | Locked | Locked |
End-to-end encrypted email services are provided by Skiff.
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| Locked | Locked | Locked |
Video emails are created, sent, and tracked through the platform.
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| Locked | Locked | Locked |
Radio broadcasting and online content services are provided to listeners.
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| Locked | Locked | Locked |
Cloud-based email security, anti-spam, and web protection are delivered.
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| Locked | Locked | Locked |
Enterprise email security, encryption & archiving solution
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Detailed competitors of PostX
Competitor domains, locations, full profiles, and operating metrics require an active premium plan.
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Verified entity values are shown only after access is granted.
Latest news on Postx
Complete news archive for PostX
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Frequently Asked Questions about PostX
PostX was founded in 1994 and raised its 1st funding round 7 years after it was founded.
PostX is headquartered in Cupertino, United States. It is registered at Cupertino, California, United States.
Chuck Robbins is the current CEO of PostX.
PostX is a funded company, having raised a total of $16.7M across 5 funding rounds to date.
PostX was founded in 1994 in Cupertino, United States, within the software sector. Enterprise email security was addressed through encryption tools that enabled delivery of protected messages directly to users mailboxes, bypassing the need for dedicated decryption clients. Operations centered on enhancing email gateway protections. Acquisition by IronPort occurred in 2006, leading to rebranding as PostX Secure Envelope.
PostX has 5 investors. Key investors include Charles Schwab, IronPort Systems, Mayfield, Alloy Ventures, and Sunrise Capital.