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Digium, Inc. was a privately held technology company founded in 1999 by Mark Spencer. It was best known as the creator and primary sponsor of Asterisk, a powerful open-source framework for building communications applications, effectively revolutionizing the telecommunications industry by making PBX systems more accessible and customizable. Digium provided a range of hardware and software products, including telephony cards, gateways, and business phone systems like Switchvox. In September 2018, Digium was acquired by Sangoma Technologies Corporation, which continues to develop and support Asterisk and Digium's product lines.
Served as the primary R&D center for Asterisk software development, hardware engineering, global sales, marketing, customer support, and overall corporate operations for Digium's unified communications solutions.
A purpose-built 68,000 sq ft facility that opened in 2007, featuring collaborative workspaces, advanced engineering labs, training facilities, and designed to foster innovation.
Characterized by an engineering-driven, innovative, and collaborative environment. Strong emphasis on open-source principles and a passion for disrupting the telecommunications market. Often described as having a dedicated and highly skilled workforce.
This facility was the nerve center for the development of Asterisk and Digium's commercial products, playing a pivotal role in the democratization of business communications technology worldwide.
While Digium's physical offices were primarily in the USA, its flagship product, Asterisk, achieved massive global adoption due to its open-source nature. Digium cultivated and supported this worldwide footprint through an extensive network of authorized partners, resellers, and certified Asterisk integrators across numerous countries. The vibrant global Asterisk community, online forums, and international attendance at its AstriCon conference further underscored its global reach. Digium's technology powered communication systems for businesses of all sizes around the world.
445 Jan Davis Drive NW
Huntsville
AL
USA
Address: Specific street address not prominently publicized; operated as a satellite development office.
To tap into the rich tech talent pool in Southern California and support specific development initiatives for Digium's product portfolio.
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As of April 2025, Digium' leadership includes:
Digium has been backed by several prominent investors over the years, including:
Digium was acquired by Sangoma Technologies in September 2018. As such, there have been no executive new hires or exits pertaining to Digium as an independent entity in the last 12 months. Any leadership changes related to former Digium assets or personnel would occur within Sangoma's organizational structure.
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Historically, Digium utilized common corporate email formats. The most frequently observed pattern was [first_initial][last]@digium.com. Following its acquisition by Sangoma, direct Digium email addresses are likely inactive.
[first_initial][last]@digium.com
Format
jdoe@digium.com
Example
75%
Success rate
Sangoma Technologies • August 27, 2018
Sangoma Technologies Corporation announced the completion of its acquisition of Digium, Inc., the creator of Asterisk. The acquisition aimed to create a dominant player in the open source communications market, combining Sangoma's strength in value-based UC solutions with Digium's Asterisk platform and Switchvox UC solution....more
TechCrunch (and other tech publications) • July 11, 2006
Digium, the company behind the Asterisk open source PBX, announced it secured $13.8 million in Series C funding. The round was led by Argosy Capital and included existing investor Adtran. This funding was intended to fuel Digium's growth, expand product development, and increase its market penetration in the enterprise communications space....more
Various Tech News Outlets (e.g. AstriCon announcements) • September 23, 2004
Digium announced the official release of Asterisk 1.0, a significant milestone for the open-source PBX software. This version solidified Asterisk's position as a viable and powerful alternative to proprietary telephony systems, paving the way for its widespread adoption and the growth of a large community of developers and users....more
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