Insights

Strategic partnerships Open-Xchange has a history of forming partnerships with large hosting and service providers (IONOS, Orange, Italiaonline, Comcast, GoDaddy, NTT, Softbank) and recent collaborations with Serve The World, Mixvoip, and EuroDNS. This suggests strong channel and OEM sales opportunities to embed Open-Xchange solutions within hosting, cloud, and telecom ecosystems.

Open source advantage The company emphasizes open source origins and browser-based, secure mail and collaboration tools. This positions Open-Xchange well for customers prioritizing transparency, security, privacy, and cost-effective, customizable SaaS deployments, including regulated industries and MSPs.

Global footprint With offices across Europe, North America, and Asia-Pacific and a diversified customer base through major hosters, Open-Xchange can target multinational organizations needing regional support, compliance, and localized service offerings.

Cloud and DNS stack OX offers mail, messaging, collaboration, and DNS solutions (PowerDNS Cloud Control, DNSdist). This integrated stack provides cross-sell opportunities to customers seeking an all-in-one open-source cloud email and DNS platform, reducing vendor fragmentation.

Financial and scale signals Annual revenue range ($100M-$250M) and a $68M funding base indicate a mid-market to small-enterprise growth trajectory with investment potential for strategic collaborations, co-marketing, or joint go-to-market initiatives to accelerate expansion.

Open-Xchange Tech Stack

Open-Xchange uses 8 technology products and services including HubSpot Analytics, Docker, HubSpot Content Hub, and more. Explore Open-Xchange's tech stack below.

Media & News

Open-Xchange's Email Address Formats

Open-Xchange uses at least 1 format(s):
Open-Xchange Email FormatsExamplePercentage
First.Last@open-xchange.comJohn.Doe@open-xchange.com
95%
FLast@open-xchange.comJDoe@open-xchange.com
2%
L.First@open-xchange.comD.John@open-xchange.com
2%
LastF@open-xchange.comDoeJ@open-xchange.com
1%

Frequently Asked Questions

What is Open-Xchange's phone number?

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You can contact Open-Xchange'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 Open-Xchange's official website and social media links?

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Open-Xchange's official website is open-xchange.com and has social profiles on LinkedInCrunchbase.

How much revenue does Open-Xchange generate?

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As of July 2026, Open-Xchange's annual revenue is estimated to be $100M - $250M.

What is Open-Xchange's NAICS code?

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Open-Xchange's NAICS code is 5112 - Software Publishers.

How many employees does Open-Xchange have currently?

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As of July 2026, Open-Xchange has approximately 198 employees across 3 continents, including EuropeNorth AmericaAsia. Key team members include Chief Executive Officer: A. G.Chief Financial Officer: D. V.Chief Commercial Officer (cco): V. S.. Explore Open-Xchange's employee directory with LeadIQ.

What industry does Open-Xchange belong to?

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Open-Xchange operates in the Software Development industry.

What technology does Open-Xchange use?

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Open-Xchange's tech stack includes HubSpot AnalyticsDockerHubSpot Content HubArgo CDDocuSignSplunkAhrefsPiwik PRO Core.

What is Open-Xchange's email format?

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Open-Xchange's email format typically follows the pattern of First.Last@open-xchange.com. Find more Open-Xchange email formats with LeadIQ.

How much funding has Open-Xchange raised to date?

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As of July 2026, Open-Xchange has raised $68M in funding. The last funding round occurred on Oct 11, 2017 for $25M.

When was Open-Xchange founded?

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Open-Xchange was founded in 2005.
Open-Xchange logo

Open-Xchange

Software DevelopmentNorth Rhine-Westphalia, Germany51-200 Employees

Open-Xchange (OX) is a software development company headquartered in Cologne, Germany in North Rhine-Westphalia, with 51-200 employees and offices in Hamburg, Nuremberg, Olpe, and international locations in the United States (Palo Alto and New York), Finland (Espoo), the Netherlands (The Hague), Italy (Turin), and Japan (Tokyo). It describes itself as a market leader of secure and open communication and office productivity software, including IMAP server software and DNS solutions, with more than 220 million seats sold through hosting providers and telcos, and it serves customers through partnerships with firms such as IONOS, Orange, Italiaonline, Comcast, GoDaddy, NTT and Softbank. The company develops and operates Open Source software as a service for mail, messaging, and collaboration, with Dovecot as the IMAP server software and PowerDNS for DNS services. Open-Xchange traces its roots to Open Source and maintains a culture that is open, diverse, and with a bias to act, enabling teams to take responsibility. The company has a global footprint and has engaged in product and partnership activity, including the launch of OX Cloud via Thexyz in 2023.

Section iconCompany Overview

Phone number
NAICS Code
5112 - Software Publishers
Founded
2005
Employees
51-200

Section iconFunding & Financials

  • $68M

    Open-Xchange has raised a total of $68M of funding over 5 rounds. Their latest funding round was raised on Oct 11, 2017 in the amount of $25Mas a series_d.

  • $100M - $250M

    Open-Xchange's revenue is estimated to be in the range of $100M - $250M

Section iconFunding & Financials

  • $68M

    Open-Xchange has raised a total of $68M of funding over 5 rounds. Their latest funding round was raised on Oct 11, 2017 in the amount of $25Mas a series_d.

  • $100M - $250M

    Open-Xchange's revenue is estimated to be in the range of $100M - $250M

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