Radisys
A communications technology company supplying open telecom infrastructure, network software, and commercial computing systems.
Last updated August 26, 2026
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Overview
Radisys is an American communications technology company headquartered in Hillsboro, Oregon. Its products and engineering services support telecommunications operators, network equipment makers, and original equipment manufacturers in areas including mobile access networks, wireless core infrastructure, policy management, deep packet inspection, conferencing, and multimedia delivery. The company also developed commercial computing platforms and embedded systems used in medical imaging, industrial automation, defense, semiconductor manufacturing, and test equipment. The business began in Oregon in 1987 as Radix Microsystems, founded by former Intel engineers Dave Budde and Glen Myers. Its early products were computer systems integrated into industrial and commercial equipment, including automated teller machines and manufacturing machinery. Initial financing came from employees, with later investment from Tektronix. During the 1990s, the company broadened its product portfolio and customer base, moved its headquarters to Hillsboro, and adopted the Radisys name. It completed an initial public offering in 1995, becoming a publicly traded technology company. Radisys expanded through a combination of internal development and acquisitions. Purchases and asset transactions involving Sonitech International, IBM's Open Computing Platform unit, Texas Micro, S-Link, Microware, Convedia, and part of Intel's communications business helped the company add embedded operating-system capabilities, multimedia platforms, communications software, and telecom hardware. The company also shifted some manufacturing to China during its expansion. Its communications portfolio increasingly focused on equipment and software for packet-based networks and mobile infrastructure, while its commercial-systems business continued serving specialized original equipment manufacturers. The company experienced changes in leadership and periods of financial pressure during the 2000s and early 2010s. Scott Grout became chief executive in 2002, followed by Mike Dagenais after the acquisition of Continuous Computing in 2011 and Brian Bronson after Dagenais's departure in 2012. Radisys later repositioned itself around communications-networking technologies and open telecom architectures. In June 2018, Reliance Industries acquired Radisys for approximately $74 million, taking the company private. Radisys now operates as an independent subsidiary within the Reliance group. Arun Bhikshesvaran became chief executive in July 2019, according to the cited reference material.
History
Radisys was established in 1987 in Beaverton, Oregon, under the name Radix Microsystems. Its founders, Dave Budde and Glen Myers, were former Intel engineers. The company was initially financed by employee investors, each contributing capital, and later received additional investment from Tektronix. Early operations were conducted from space leased from Sequent Computer Systems. Radisys initially concentrated on computer systems and embedded platforms supplied to manufacturers of specialized commercial and industrial equipment. By 1994, the company had developed into a substantial technology supplier. It went public on October 20, 1995, through an initial public offering, marking a transition from a privately financed Oregon startup to a listed corporation. In 1996, Radisys moved its headquarters to a new Hillsboro campus. The company expanded its workforce and sales while continuing to serve original equipment manufacturers. Dave Budde left the business in 1997, and Radisys increasingly used acquisitions to extend its technical capabilities and market reach. The acquisition program included Sonitech International in 1997, part of IBM's Open Computing Platform unit and Texas Micro in 1999, and S-Link and Microware in 2001. These transactions strengthened Radisys's embedded-computing, software, and systems capabilities. The company also transferred some manufacturing activity to China as it sought lower production costs. During the early 2000s, Radisys grew into a broader supplier serving both commercial systems and communications networking. In 2002, Scott Grout became chief executive and C. Scott Gibson became chairman, replacing co-founder Glen Myers in the company's senior leadership structure. Radisys sold its signaling-gateway line in 2003 and raised capital through convertible senior notes later that year. In 2004, it changed elements of its employee compensation approach, replacing stock-option grants with restricted shares for some employees. The company continued to expand its revenue base through the middle of the decade. Its 2006 acquisition of Convedia added communications and media capabilities, while a 2007 purchase of part of Intel's communications business further connected Radisys to telecom infrastructure markets. The company experienced periods of quarterly losses but returned to quarterly profitability in the fourth quarter of 2009. In 2011, Radisys announced the acquisition of Continuous Computing for stock and cash. The transaction closed in July, and Continuous Computing's chief executive, Mike Dagenais, became Radisys's chief executive. Dagenais left in 2012, after which former chief financial officer Brian Bronson assumed the role. The company increasingly emphasized communications networking, wireless infrastructure, packet-based networking, multimedia, and open telecom architectures while retaining commercial-systems activities for specialized equipment makers. On June 30, 2018, Reliance Industries acquired Radisys for approximately $74 million. The transaction ended Radisys's period as a public company and placed it within Reliance's corporate structure. Radisys continued operating as an independent subsidiary. Arun Bhikshesvaran became chief executive in July 2019. Its stated technology scope includes small-cell radio access networks, wireless core-network elements, deep packet inspection, policy management, conferencing, media services, and systems used in medical imaging, defense, industrial automation, and semiconductor manufacturing.
- 2018
Acquired by Reliance Industries
[1]Reliance Industries acquired Radisys and converted it from a listed company into an independent subsidiary within the Reliance group.
- 2011
Continuous Computing acquisition
[1]The company announced and completed the acquisition of Continuous Computing, adding telecom software and infrastructure capabilities.
- 2006
Convedia acquisition
[1]Radisys acquired Convedia, strengthening its communications, conferencing, and media-services portfolio.
- 2001
Embedded-software and systems expansion
[1]Acquisitions involving S-Link and Microware broadened Radisys's embedded systems and software capabilities.
- 1996
Headquarters moved to Hillsboro
[1]The company moved its headquarters to a new campus in Hillsboro, Oregon, as its sales and employee base expanded.
- 1995
Initial public offering
[1]Radisys became a publicly traded company through an initial public offering on October 20, 1995.
- 1987
Company founded as Radix Microsystems
[1]Former Intel engineers Dave Budde and Glen Myers founded the company in Oregon to develop computer and embedded systems for specialized commercial and industrial equipment.
Products and positioning
A specialist infrastructure and systems supplier for communications providers and equipment manufacturers, combining telecom networking technology with embedded computing and systems-integration capabilities.
Telecommunications infrastructure
Small-cell radio access network solutions
Radisys develops technology used in small-cell radio access networks, which support mobile connectivity in localized coverage areas and complement larger cellular network deployments. These solutions form part of the company's broader focus on open and software-oriented telecom architectures for communications providers and network equipment manufacturers.
Telecommunications infrastructure
Wireless core network elements
The company's communications portfolio includes components for wireless core networks. These elements support the processing and management functions needed to connect mobile users and services to packet-based communications networks.
Network software and appliances
Deep packet inspection and policy management
Radisys supplies technology for examining network traffic and applying policy rules. Such systems can help communications operators manage service behavior, network usage, and differentiated treatment of traffic across packet-based networks.
Communications software · 2006
Conferencing and media services
Radisys has supplied platforms supporting conferencing and the delivery of voice, video, and data services. The portfolio was strengthened through the acquisition of Convedia and reflects the company's role as a technology supplier to communications businesses rather than a consumer-facing service brand.
Embedded computing
Commercial embedded systems
Radisys's commercial-systems business provides computing platforms and integration capabilities for original equipment manufacturers. Known application areas include MRI and ultrasound equipment, logic analyzers, semiconductor-manufacturing equipment, industrial automation, and defense systems.
Brand decisions
2018
Acceptance of Reliance Industries acquisitionM&ABackground
Radisys was a publicly traded communications technology company with a portfolio spanning telecom infrastructure and commercial embedded systems.
Action taken
Reliance Industries acquired Radisys and took the company private, after which Radisys continued as an independent subsidiary.
Aftermath
The transaction ended Radisys's public-company status and placed its communications technology business within the Reliance group.
2011
Acquisition of Continuous ComputingM&ABackground
Radisys sought to expand its communications-networking and telecom-software capabilities.
Action taken
The company announced a stock-and-cash acquisition of Continuous Computing and completed the transaction in July 2011.
Aftermath
Continuous Computing chief executive Mike Dagenais became Radisys chief executive after the transaction.
Recent events
- 2019
Arun Bhikshesvaran becomes Radisys chief executive[1]
Leadership change
Arun Bhikshesvaran took over as chief executive of Radisys in July 2019 following the company's acquisition by Reliance Industries.
- 2018
Reliance Industries acquires Radisys[1]
M&A
Reliance Industries completed its acquisition of Radisys on June 30, 2018, taking the Oregon-based communications technology company private and incorporating it as an independent subsidiary.
- 2011
Radisys announces acquisition of Continuous Computing[1]
M&A
Radisys announced a stock-and-cash transaction to acquire Continuous Computing. After the transaction closed, Continuous Computing chief executive Mike Dagenais became Radisys chief executive.
- 2006
Radisys acquires Convedia[1]
M&A · Product generation
Radisys acquired Convedia, adding communications and multimedia capabilities to its technology portfolio.
Sources2 sources
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