Startup profile for Twilio: latest funding, latest known valuation, total disclosed funding, investors, status, sources, and why the company is interesting. Part of the Venture Capital Tracker startup directory.
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Twilio funding, valuation and investors

Cloud communications APIs for SMS, voice, email, and verification.

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Funding, valuation & investors

Answer-first snapshot

Latest funding

Series D

$17M · 2011

Latest known valuation

Not publicly disclosed

Total disclosed equity funding

$17M

Excludes debt, grants, acquisitions, secondaries, and IPO proceeds.

Current status

public

public · San Francisco, California, USA

Investors in latest funding

Other: Andreessen Horowitz

Sources: latest funding Last verified: 2026-07-25

Overview

Twilio provides cloud APIs that let developers embed SMS, voice, video, email, and two-factor authentication into applications without managing carrier relationships. Founded in 2008 by Jeff Lawson, Twilio went public on NYSE in 2016 (TWLO) and became a foundational developer platform for customer engagement. Andreessen Horowitz participated in early venture rounds. Twilio serves startups through Fortune 500 customers via pay-as-you-go and enterprise contracts, though it has faced margin and growth scrutiny in public markets during 2020s platform maturation.

Why Twilio is interesting

Twilio democratized telecom APIs for developers — a16z early backer before TWLO became the default programmable communications layer for startups and enterprises.

Product & use cases

Twilio's APIs abstract telecom infrastructure — Programmable SMS/Voice, SendGrid email, Verify 2FA, Flex contact center — billed on usage with global carrier connectivity.

  • Startups adding SMS notifications and phone verification
  • Contact centers building custom IVR and agent workflows
  • Enterprises sending transactional email via SendGrid

Key facts

  • IPO (Jun 2016): NYSE TWLO
  • a16z participated in early venture rounds
  • Acquired SendGrid (email) and Segment (CDP) to expand platform
  • Foundational CPaaS for developer communications

Funding history (newest first)

Series D

2011 $17M

Source: https://techcrunch.com/2011/07/12/twilio-raises-17-million/

Investors in our directory

Funds linked from Twilio's profile — open a fund page for stage focus and related deal articles.

Andreessen Horowitz

Competitive landscape

Edge: Developer-first API design and documentation set the standard — massive ecosystem and ISV integrations built on Twilio.

CPaaS commoditized at the API layer; Twilio competes on reliability, global reach, and higher-layer products (Flex, Segment) while managing public-market profitability expectations.

  • MessageBird / Sinch direct

    CPaaS competitors globally.

  • AWS Pinpoint / SNS incumbent

    Cloud bundled communications; Twilio more developer-focused.

  • Vonage (Ericsson) direct

    Enterprise CPaaS alternative.

Notable stories

  • Jeff Lawson's Twilio IPO in 2016 validated 'developers as buyers' for telecom — a16z was among early believers in programmable communications (TechCrunch).

Industries

Enterprise SaaS Developer Tools Infrastructure & Cloud

Market / IPO context

Ticker: TWLO (NYSE)

IPO status: public

IPO date: 2016-06

Editorial / static context — not a live quote.

FAQs about Twilio

Practical answers founders, operators, and investors typically search for.

Twilio provides APIs for SMS, voice, video, email, and authentication embedded in applications.
Yes — TWLO on NYSE since June 2016.
Andreessen Horowitz among early backers. See /fund/andreessen-horowitz.
Both offer messaging; Twilio specializes in CPaaS with carrier-grade voice/SMS and developer UX.
Jeff Lawson in 2008.
Yes — email API platform now part of Twilio.
Customer data platform acquired by Twilio for engagement personalization.
Public company — see TWLO SEC filings for current profitability metrics.
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By Venture Capital Tracker

Last updated:

Editorial note: AI tools assisted with research, structure, or drafting. Venture Capital Tracker retains human editorial responsibility for factual accuracy, relevance, and source quality before publication.