SignalWire
Palo Alto, US · Founded 2017 · Delaware corporation · 6 known investors
SignalWire is an open-source software-defined telecom platform that enables developers to build communications applications and services. The company serves developers and enterprises seeking to build and scale custom communications products without building underlying telecommunications infrastructure.
AI & Machine LearningDeveloper ToolsSaaS
Founders & leadership
SignalWire was founded in 2017 by Anthony Minessale, Brian West, Michael Jerris, and Anthony Minessale II.
AM
Anthony MinessaleCEO
BW
Brian WestDirector of Support & Head of Developer Experience
MJ
Michael JerrisSenior Program Manager
AM
Anthony Minessale IIinCo-founder
JM
Jill MinessaleNamed on SEC filing
SH
Sean HeineyNamed on SEC filing
Investors · 6
Reported raises · per SEC filings
Form D private placements$26.3M disclosed across 3 rounds · 2018–2021
▶$20MraisedJun 2021 · 5 investors · Other TechnologyRule 506(b)
▶$20MraisedJun 2021 · 5 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
- Anthony Minessale IIExecutive Officer, Director
- Daniel CarterDirector
- Ryan FloydDirector
- Sean HeineyExecutive Officer, Director
- Jill MinessaleExecutive Officer
- Offering amount
- $30M
- Amount sold
- $20M
- First sale
- May 2021
- Incorporated
- Corporation, Delaware, 2017
- Federal exemptions
- 06b
▶$6MraisedAug 2019 · 2 investors · Other TechnologyRule 506(b)
▶$6MraisedAug 2019 · 2 investors · Other Technology
Rule 506(b)Officers, directors & promoters on the filing
- Anthony Minessale IIExecutive Officer, Director
- Ryan FloydDirector
- Sean HeineyExecutive Officer, Director
- Jill MinessaleExecutive Officer
- Offering amount
- $8M
- Amount sold
- $6M
- First sale
- Jul 2019
- Incorporated
- Corporation, Delaware, 2017
- Federal exemptions
- 06b
▶$300KraisedApr 2018 · 1 investors · Other TechnologyRule 506(b)
▶$300KraisedApr 2018 · 1 investors · Other Technology
Rule 506(b)Officers, directors & promoters on the filing
- Jill MinessaleExecutive Officer
- Anthony Minessale IIExecutive Officer, Director
- Sean HeineyExecutive Officer, Director
- Offering amount
- $4M
- Amount sold
- $300K
- First sale
- Mar 2018
- Incorporated
- Corporation, Delaware, 2017
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Competitors · 6
by search overlap
Twilio682 shared keywordsTwilio provides a cloud-based communications platform that enables businesses to integrate voice, messaging, and video into applications using APIs. The platform combines communication channels, contextual data, and AI orchestration for enterprises and developers building customer experiences.
Neutral Tandem388 shared keywordsSinch provides cloud communications tools that let businesses connect with their customers across messaging and other channels. It serves companies looking to build customer engagement through communication technology.
RingCentral310 shared keywordsRingCentral provides cloud-based unified communications and AI-powered contact center solutions for businesses, serving over 600,000 customers worldwide. The platform integrates voice, video, messaging, and conversation intelligence to enable secure, efficient enterprise communications.
telnyx307 shared keywordsTelnyx operates a full-stack communications platform that owns its own global carrier network, enabling real-time voice AI, messaging, and inference without intermediary handoffs. The company serves enterprises requiring deterministic routing, reduced latency, and compliance-by-default infrastructure for AI agents.
Zendesk271 shared keywordsThis is Zendesk's internal belonging/diversity and inclusion program page, not a company profile page for an external company. It describes Zendesk's internal culture initiatives and leadership development programs.
AlienVault224 shared keywordsAT&T is a telecommunications provider offering wireless mobile plans, smartphones, and related connectivity services to consumers. It sells devices such as the Samsung Galaxy line alongside mobile phone plans and switching offers.
Companies competing with SignalWire for the same Google search keywords, organic and paid, via search-intersection analysis.
In the news
Frequently asked questions
- What does SignalWire do?
- SignalWire is an open-source software-defined telecom platform that enables developers to build communications applications and services. The company serves developers and enterprises seeking to build and scale custom communications products without building underlying telecommunications infrastructure.
- Who founded SignalWire?
- SignalWire was founded by Anthony Minessale, Brian West, Michael Jerris, Anthony Minessale II in 2017.
- Who are SignalWire's investors?
- SignalWire's investors include Cerity Partners Ventures, Flucas Ventures, Mighty Capital, Prosperity7 Ventures, Storm Ventures, DTCP.
- How much funding has SignalWire raised?
- SignalWire has disclosed $26.3M raised across 3 rounds.
- Where is SignalWire headquartered?
- SignalWire is headquartered in Palo Alto, US.