Bandwidth
Communications platform offering VoIP, cloud contact center, and cloud PBX services.
Last updated August 31, 2026
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Overview
Bandwidth Inc. is an American communications platform as a service company that supplies communications infrastructure to businesses, software developers, and application providers. Its core offering is a set of application programming interfaces that allow customers to embed voice calling, text messaging, and emergency-services capabilities into software products and business workflows. Rather than operating primarily as a consumer-facing mobile or fixed-line brand, Bandwidth functions as an infrastructure and enablement provider between communications networks and the applications that use them. The company was founded in 1999 by David Morken. Henry Kaestner joined as a co-founder in 2001, when Bandwidth International was merged into Bandwidth.com. The business developed around programmable communications and network services, eventually building and operating its own global Internet Protocol voice network. This network-oriented model gave Bandwidth control over important elements of call and messaging delivery while supporting customers that needed communications functionality inside unified communications, contact-center, software-as-a-service, and other applications. Bandwidth became a publicly traded company on the Nasdaq in November 2017. Its initial public offering sold four million shares at $20 per share and raised approximately $80 million, marking the transition from a privately held communications technology company to a listed infrastructure provider. The company continued to expand its enterprise capabilities through international network assets and acquisitions. In October 2020, it announced an agreement to acquire Voxbone for an enterprise value of €446 million. Voxbone was known for international communications connectivity, and the transaction was intended to broaden Bandwidth’s global communications platform and enterprise reach. The company’s product scope includes programmable voice, application-to-person and person-to-application messaging, telephone numbers, communications APIs, and emergency calling services. These capabilities are designed for integration into third-party software rather than for direct retail consumption. Bandwidth has also participated in industry and academic work addressing abuse of communications networks. In 2020, it announced a partnership with North Carolina State University for research into fraudulent traffic patterns associated with robocalling. Bandwidth is headquartered in Raleigh, North Carolina. In August 2023, it moved to a purpose-built, approximately 40-acre headquarters campus on Bandmate Way in Raleigh. The company was reported to have approximately 1,000 employees at that time. In January 2024, Bandwidth ended an incentive agreement with the state of North Carolina that had required the creation of more than 1,100 local jobs. The company said the decision would provide greater flexibility in hiring outside the Raleigh area. Bandwidth has also attracted attention for incorporating Christian religious practices into aspects of its corporate culture, including reports that some meetings begin with Christian prayers. This cultural characteristic distinguishes the company from many conventional technology firms, although it is separate from its principal commercial identity as a communications infrastructure and API provider.
History
Bandwidth Inc. originated in 1999 as a communications technology business founded by David Morken. In 2001, Henry Kaestner joined the organization as a co-founder, and Bandwidth International was merged into Bandwidth.com. The company’s development followed the broader shift from traditional telecommunications services toward software-controlled communications, in which voice, messaging, and related network functions can be embedded directly into business applications. Bandwidth built its business around communications infrastructure and application programming interfaces. It developed and operated a global Internet Protocol voice network and used that network to support programmable calling, messaging, and emergency-services functions. This positioned the company as a behind-the-scenes technology provider for enterprises and software companies rather than as a conventional consumer telecom operator. Customers can use its APIs and network services to add communications features to products such as business applications, contact-center systems, and other software platforms. A major corporate milestone came in November 2017, when Bandwidth completed an initial public offering on the Nasdaq. The offering sold four million shares at $20 each and raised approximately $80 million. Public-market status gave the company access to additional capital while subjecting it to the reporting and governance requirements of a listed technology company. Bandwidth pursued international expansion and broader enterprise connectivity through mergers and acquisitions. In October 2020, it announced a definitive agreement to acquire Voxbone for an enterprise value of €446 million. The proposed combination brought together Bandwidth’s programmable communications platform and Voxbone’s international connectivity capabilities, supporting the company’s objective of serving enterprise customers across more markets. The company also engaged in work related to the misuse of communications networks. In August 2020, Bandwidth announced a partnership with North Carolina State University for a study of fraudulent traffic patterns connected with robocalling. The research reflected an industry-wide concern that automated abuse, spoofing, and fraudulent calling can undermine trust in voice networks and impose costs on carriers, businesses, and consumers. In August 2023, Bandwidth moved to a purpose-built headquarters campus occupying approximately 40 acres at 2230 Bandmate Way in Raleigh, North Carolina. At that time, the company was reported to employ about 1,000 people. In January 2024, it terminated an incentive agreement with the state of North Carolina that had required the creation of more than 1,100 local jobs. Bandwidth cited the need for increased flexibility to hire beyond the Raleigh area. Bandwidth has received attention not only for its technology business but also for its corporate culture. Reports have described the use of Christian prayers at some meetings, an unusual practice for a publicly traded communications technology company. The available reference material does not establish a formal legal or regulatory scandal arising from that practice, so it is best understood as a reported cultural characteristic rather than a confirmed scandal.
- 2024
North Carolina incentive agreement terminated
[1]The company ended an employment incentive agreement with the state, citing greater hiring flexibility outside Raleigh.
- 2023
New Raleigh headquarters opens
[1]Bandwidth moved to a purpose-built headquarters campus in Raleigh, North Carolina.
- 2020
Voxbone acquisition announced
[1]Bandwidth announced an agreement to acquire Voxbone for an enterprise value of €446 million.
- 2017
Initial public offering
[1]Bandwidth listed on Nasdaq after selling four million shares at $20 each and raising approximately $80 million.
- 2001
Henry Kaestner joins as co-founder
[1]Henry Kaestner joined the company, and Bandwidth International was merged into Bandwidth.com.
- 1999
Bandwidth is founded
[1]David Morken founded the communications technology company that became Bandwidth.
Products and positioning
An infrastructure-focused communications platform that enables software companies and enterprises to integrate voice, messaging, and emergency services through APIs and network connectivity.
Voice communications API
Programmable Voice
API-based voice services that allow software and enterprise applications to place, receive, route, and manage telephone calls. The offering is supported by Bandwidth’s IP voice network and is intended for embedded communications use cases such as business software, unified communications, and contact-center applications.
Messaging API
Programmable Messaging
Application programming interfaces for integrating text messaging into software products and business processes. The service supports communications between applications and users and forms part of Bandwidth’s broader communications platform for enterprise and software customers.
Emergency communications
Emergency Services
Communications infrastructure and APIs for incorporating emergency calling capabilities into connected applications and business communications systems. The offering extends Bandwidth’s programmable network beyond ordinary voice and messaging functions.
Network infrastructure
Global IP Voice Network
Bandwidth operates a global Internet Protocol voice network that provides underlying connectivity for its programmable communications services. This infrastructure-oriented model enables the company to support application providers and enterprises that need communications capabilities without building a telecommunications network themselves.
Brand decisions
2024
Termination of North Carolina incentive agreementStrategyBackground
The agreement required Bandwidth to create more than 1,100 local jobs, while the company sought greater flexibility in where it recruited employees.
Action taken
Bandwidth terminated the incentive agreement with the state of North Carolina.
Aftermath
The company cited the ability to hire more flexibly outside the Raleigh area; the available material does not provide further financial or employment results.
2020
Agreement to acquire VoxboneM&ABackground
Bandwidth pursued broader international communications connectivity and enterprise capabilities.
Action taken
The company announced a definitive agreement to acquire Voxbone.
Aftermath
The transaction was announced at an enterprise value of €446 million and was intended to strengthen Bandwidth’s international platform.
Enterprise value. €446 million (October 12, 2020)
2017
Public-market listingOtherBackground
Bandwidth sought access to public capital while continuing to scale its communications platform and network infrastructure.
Action taken
The company completed an initial public offering on Nasdaq, selling four million shares at $20 per share.
Aftermath
The offering raised approximately $80 million and made Bandwidth a publicly traded company.
IPO proceeds. $80 million raised (November 10, 2017)
Recent events
Reported
Bandwidth elects Chip Schroeder to its board[2]
Bandwidth announced that its board elected Chip Schroeder as a director, effective October 28, 2026.
Reported
Bandwidth joins Zoom Phone Provider Exchange as a charter member[3]
Bandwidth announced it would be a charter member of Zoom's new Zoom Phone Provider Exchange as an enhanced cloud peering collaborator, enabling Zoom enterprise customers to work directly with Bandwidth for SIP trunking and emergency services.
Reported
Bandwidth Duet wins UC Today innovation award[4]
Bandwidth announced that its Duet solution received UC Today's “Most Innovative Product” award in the worldwide Unified Communications space.
Weekdays and relative dates follow the original report; their exact calendar dates have not been verified.
Reported
Bandwidth announces Duet BYOC solution for RingCentral[5]
Bandwidth announced plans to deliver early access to a new Bring Your Own Carrier solution for RingCentral, extending its Duet service to RingCentral's Message Video Phone platform.
Reported
Bandwidth completes acquisition of Voxbone[6]
Bandwidth completed its acquisition of Voxbone for an enterprise value of €446 million. Voxbone will operate under the Bandwidth brand.
Reported
Amaya Lantero named GM of Bandwidth's international operations[6]
Bandwidth named Amaya Lantero general manager of its international operations, where she will lead commercial, product, operations and technology functions.
Reported
Bandwidth partners with NC State on robocalling study[7]
Bandwidth announced its partnership with North Carolina State University on a research study of robocalling campaigns and authorized use of a SIP trunk and 66,606 phone numbers to support the research.
Reported
Bandwidth prices $350 million convertible notes offering[8]
Bandwidth announced the pricing of a private offering of $350 million aggregate principal amount of 0.250% convertible senior notes due 2026. The offering size was increased from the previously announced $300 million; settlement was expected on February 28, 2020, subject to customary closing conditions.
Reported
Bandwidth reports fourth-quarter and full-year 2019 results[9]
Bandwidth announced financial results for the fourth quarter and full year ended December 31, 2019, reporting fourth-quarter revenue of $62.0 million and full-year revenue of $232.6 million.
Sources10 sources
- 1Bandwidth Inc.en.wikipedia.org
- 2Bandwidth选举Chip Schroeder进入董事会prnewswire.com
- 3Bandwidth加入Zoom Phone Provider Exchange并成为创始成员prnewswire.com
- 4Bandwidth Duet 获得 UC Today 创新奖prnewswire.com
- 5Bandwidth宣布为RingCentral推出Duet自带运营商解决方案prnewswire.com
- 6Bandwidth完成对Voxbone的收购prnewswire.com
- 7Bandwidth 与北卡罗来纳州立大学合作开展骚扰电话研究prnewswire.com
- 8Bandwidth为3.5亿美元可转换票据发行定价prnewswire.com
- 9Bandwidth公布2019年第四季度及全年业绩prnewswire.com
- 10Bandwidth Announces First Quarter 2020 Financial Resultsprnewswire.com
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