Twilio

Twilio is an American cloud communications company whose software and application programming interfaces allow developers and businesses to add communications and customer-engagement capabilities to their own products. Its core services enable applications to send and receive text messages, place and handle telephone calls, deliver email, support video and chat interactions, verify user identities, and manage customer data. Rather than requiring customers to build telecommunications infrastructure themselves, Twilio provides cloud-hosted services, software tools, phone numbers, messaging routes, developer libraries, and webhooks that connect communications events to application logic. The company was founded in 2008 by Jeff Lawson, Evan Cooke, and John Wolthuis, initially operating between Seattle and San Francisco. It launched its cloud voice API in November 2008 and subsequently expanded into text messaging, short codes, video, contact-center technology, authentication, email, customer data, and security. Its developer-oriented model helped make communications capabilities available to startups and software teams that previously needed carrier relationships and specialized telecom engineering. Twilio became associated with platform evangelism, documentation, self-service onboarding, hackathons, and usage-based pricing, with GroupMe serving as an early example of an application built using Twilio messaging. The business broadened significantly through acquisitions. Authy added consumer and developer-focused two-factor authentication; SendGrid added transactional and marketing email; Segment added customer-data collection and activation; and Zipwhip expanded toll-free messaging. Other acquisitions and technology purchases added speech analytics, WebRTC media infrastructure, virtual mobile-network capabilities, Internet-of-Things connectivity, data security, and identity functionality. These moves shifted Twilio from a narrow communications API provider toward a wider customer-engagement and communications platform. Twilio went public on the New York Stock Exchange in June 2016. Its growth later brought organizational and strategic pressure, including workforce reductions in 2022, 2023, and 2024, and a restructuring into Communications and Data & Applications business units. The company also faced security incidents involving employee-targeted phishing and the Authy service, as well as scrutiny over how its services were used by third-party platforms. Jeff Lawson left the chief executive role and Twilio's board in January 2024, when Khozema Shipchandler became chief executive. Twilio remains an active global enterprise-software provider serving developers, businesses, contact centers, marketers, and digital products.

Twilio was established in 2008 by Jeff Lawson, Evan Cooke, and John Wolthuis, graduates of the University of Michigan. The company began with operations in Seattle and San Francisco and pursued a developer-oriented approach to telecommunications. Its initial product, released in November 2008, was a cloud voice API that let software applications place and receive telephone calls without directly operating carrier infrastructure. Twilio followed with a text-messaging API in February 2010 and public-beta SMS short codes in 2011. The company's early growth was supported by venture investors including Mitch Kapor, Founders Fund, K9 Ventures, Union Square Ventures, Bessemer Venture Partners, Redpoint Ventures, Draper Fisher Jurvetson, Fidelity, T. Rowe Price, Altimeter Capital, Arrowpoint Partners, Amazon, and Salesforce. Twilio used self-service tools, documentation, developer communities, technical evangelism, and startup events to encourage software developers to build communications into their applications. GroupMe, created at a TechCrunch Disrupt hackathon in 2010, became a prominent early example of a service using Twilio messaging. The Twilio Fund, announced by 500 Startups in 2010, also supported startups building on the platform. Twilio expanded its technology base through both product development and acquisitions. OpenVBX provided an open-source interface for configuring call routing, while TwiML supplied a Twilio-specific markup method for describing call and messaging behavior through webhooks. The company acquired Authy in 2015, adding two-factor authentication products, and acquired the team behind Kurento in 2016 to strengthen real-time media capabilities. Beepsend, Ytica, Core Network Dynamics, and Electric Imp added SMS delivery, speech analytics, mobile-network infrastructure, and Internet-of-Things capabilities. The acquisition of SendGrid, announced in 2018 and completed in 2019, brought transactional and marketing email into the portfolio. Segment, acquired in 2020, extended Twilio into customer-data collection and activation. Ionic Security, Zipwhip, and Boku Identity further expanded security, messaging, and identity offerings. Twilio filed for an IPO and began trading on the New York Stock Exchange on June 23, 2016. Over time, its scope developed from programmable voice and messaging into a broader customer-engagement platform serving developers, enterprises, marketers, contact centers, and digital-service operators. Its services are hosted on cloud infrastructure and commonly interact with customer applications through APIs, HTTP webhooks, software-development kits, and programmable workflows. The company encountered security, governance, and operational challenges as it grew. In 2021 it ended service links to Parler after disagreements concerning moderation of hate speech and insurrection-related content. In August 2022, an SMS phishing campaign targeting employees enabled unauthorized access to internal systems and affected a limited number of customer accounts. Twilio then announced substantial workforce reductions: 11% in 2022, approximately 17% in 2023, and another reduction in 2023 affecting about 5% of employees. The company divided operations into Communications and Data & Applications units during this period. Jeff Lawson left the CEO role and the board in January 2024, succeeded by Khozema Shipchandler. A later Authy-related incident involved reported exposure of account-associated phone numbers, reinforcing the importance of security controls around identity and authentication services.

1. 2024Leadership transition

   Khozema Shipchandler became CEO after Jeff Lawson stepped down from the role and the board.

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2. 2022Security breach and first major workforce reduction

   Twilio disclosed an employee-targeted phishing incident and announced an 11% workforce reduction.

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3. 2020Segment acquired

   Twilio acquired Segment to strengthen customer-data collection, management, and activation.

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4. 2019SendGrid merger completed

   Twilio completed its combination with SendGrid, adding large-scale transactional and marketing email.

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5. 2016Initial public offering

   Twilio began trading on the New York Stock Exchange.

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6. 2015Authy acquired

   Twilio acquired Authy, expanding into two-factor authentication for users, developers, and enterprises.

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7. 2010Text messaging API introduced

   Twilio added programmable SMS and later made SMS short codes available in public beta.

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8. 2008Twilio is founded and launches cloud voice

   Jeff Lawson, Evan Cooke, and John Wolthuis founded Twilio, which released its hosted voice API later that year.

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A developer-first, programmable cloud platform for embedding communications, identity, customer data, and engagement workflows into software products.

• Twilio Programmable MessagingMessaging API2010

  APIs and related tools for sending and receiving SMS and other mobile messages. Businesses use the service for notifications, verification codes, alerts, customer support, marketing, and two-way application conversations.

• Twilio VoiceVoice API2008

  A programmable telephony service that lets applications place, receive, route, record, and manage calls. Developers control call behavior through webhooks, TwiML, APIs, and related software tools.

• Twilio VideoVideo communications

  Real-time video and audio capabilities designed for embedding conferencing, collaboration, telehealth, support, and other interactive experiences into applications.

• Twilio SendGridEmail platform2019

  An email delivery and engagement platform for transactional messages, campaigns, templates, deliverability management, and email analytics. It became part of Twilio through the SendGrid acquisition.

• Twilio SegmentCustomer data platform2020

  Tools for collecting, standardizing, governing, and activating customer data across marketing, analytics, product, and engagement systems. Segment broadened Twilio's role beyond communications infrastructure.

• Twilio VerifyIdentity and verification

  Identity-verification services that support one-time passcodes and other verification workflows through channels such as SMS, voice, and messaging.

• Twilio FlexContact center

  A programmable contact-center platform intended to let organizations configure agent experiences, customer channels, routing, workflows, and integrations rather than rely solely on a fixed contact-center interface.

• AuthyAuthentication

  A two-factor authentication service acquired by Twilio in 2015. Authy provides authentication applications and supporting services for end users, developers, and organizations.

• 2010Developer evangelism and hackathon outreach

  United States · Global developer community

  Twilio used technical documentation, developer events, platform evangelism, and hackathons to encourage startups and software teams to build communications features with its APIs. GroupMe's appearance at TechCrunch Disrupt became an early example of this approach.

  Outcome. Helped establish Twilio as a developer-first communications platform.

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• 2010Twilio Fund

  United States · Startup ecosystem

  500 Startups announced a micro-fund intended to provide seed financing to startups using Twilio technology.

  Outcome. Extended Twilio's developer ecosystem and startup-acquisition strategy.

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• 2024Chief executive transitionOther

  After leading Twilio from its founding through its public-market expansion, co-founder Jeff Lawson left the chief executive role.

  What changed. Khozema Shipchandler was appointed CEO, while Lawson also departed the board.

  Aftermath. The transition placed day-to-day leadership under a new executive as Twilio continued its focus on communications, data, identity, and customer engagement.

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• 2022Creation of Communications and Data & Applications unitsStrategy

  Twilio undertook a restructuring amid slower growth, workforce reductions, and a broader product portfolio following acquisitions such as Segment.

  What changed. The company organized its activities into Twilio Communications and Twilio Data & Applications.

  Aftermath. The structure was intended to sharpen accountability and focus across the communications and customer-data businesses.

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• 2021Service termination for ParlerStrategy

  Twilio provided services connected to Parler, a social-media platform that faced controversy over hate speech and content related to the January 2021 U.S. Capitol attack.

  What changed. Twilio shut down its service links to Parler after Parler did not agree to monitor prohibited hate speech and insurrection-related content.

  Aftermath. The decision illustrated the policy and platform-governance risks faced by infrastructure providers whose APIs support third-party applications.

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• 2024Authy account phone-number exposureControversy

  Threat actors were reported to have acquired phone numbers associated with more than 33 million Authy users. Twilio stated that authentication tokens and credentials were not exposed.

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• 2022Employee-targeted phishing breachControversy

  An attacker used SMS phishing against Twilio employees to obtain access to internal systems. Twilio said a limited number of customer accounts were affected; Signal later confirmed that its service was among the affected customers.

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• 2024Jeff Lawson steps down as chief executive

  Co-founder Jeff Lawson left the CEO position and the board, with Khozema Shipchandler succeeding him as chief executive.

  Leadership change
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• 2023Twilio announces additional workforce reduction

  Twilio announced a further reduction of approximately 17% of its workforce as part of its restructuring and efficiency program.

  Other
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• 2022Twilio announces workforce reductions and operating-unit restructuring

  The company announced an 11% workforce reduction and later reorganized its operations around Communications and Data & Applications.

  Leadership changeOther
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• 2018Twilio acquires SendGrid

  Twilio announced an agreement to acquire email-delivery and customer-communication company SendGrid, broadening its communications platform.

  M&A
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• 2016Twilio completes its initial public offering

  Twilio began trading on the New York Stock Exchange after its IPO.

  Other
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• 2010Twilio launches text messaging API

  Twilio expanded beyond voice by releasing tools for application-based SMS sending and receiving.

  Product launch
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• 2008Twilio launches its cloud voice API

  The company introduced a hosted API for making and receiving telephone calls through cloud software.

  Product launch
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1. Twilio
2. Twilio official website
3. Twilio August 2022 social-engineering attack update
4. Twilio leadership transition announcement
5. Twilio security alert
6. Creation of Communications and Data & Applications units
7. Twilio宣布进一步裁员