Insights

Open Source Momentum SignalWire has roots in FreeSWITCH and a track record of broad adoption through community-driven development, suggesting strong upsell potential to customers seeking scalable, customizable cloud communications and AI-enabled UCaaS/CPaaS solutions.

AI-Driven Voice Recent launches of Sigmond and embedded AI tools, along with an Agents SDK, indicate a strategic push into AI-powered voice interactions, creating opportunities to cross-sell to developers and enterprises aiming to enhance customer engagement with voice agents and analytics.

Developer Ecosystem Tools like Developer Voice Toolkit, no-code AI Agent Builder, and full-stack SDKs position SignalWire as a platform for building custom communications workflows, making it a fit for engineering-led buying teams seeking rapid prototyping and scalable deployments.

Cloud-Native Growth With revenue in the mid tens of millions and a growing suite of cloud-native UCaaS/CCaaS capabilities, SignalWire presents a scalable opportunity for mid-market to enterprise customers migrating away from legacy data-center-centric models toward API-first, cloud-based communications.

Strategic Partnerships Leveraging integrations with Azure and a tech stack that includes modern analytics and CRM tools signals potential for co-sell and integration partnerships, enabling joint go-to-market strategies with cloud providers and marketing automation platforms.

Similar companies to SignalWire

SignalWire Tech Stack

SignalWire uses 8 technology products and services including Quickbooks Online, Grafana, GitHub, and more. Explore SignalWire's tech stack below.

Media & News

SignalWire's Email Address Formats

SignalWire uses at least 4 email formats:
SignalWire Email FormatsExamplePercentage
First.Last@signalwire.comJohn.Doe@signalwire.com
81%
First@signalwire.comJohn@signalwire.com
13%
Last@signalwire.comDoe@signalwire.com
4%
FLast@signalwire.comJDoe@signalwire.com
2%

Frequently Asked Questions

What is SignalWire's phone number?

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You can contact SignalWire's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is SignalWire's official website and social media links?

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SignalWire's official website is signalwire.com and has social profiles on LinkedIn and Crunchbase.

How much revenue does SignalWire generate?

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As of August 2026, SignalWire's annual revenue is estimated to be $25M - $50M.

What is SignalWire's NAICS code?

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SignalWire's NAICS code is 517 - Telecommunications.

How many employees does SignalWire have currently?

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As of August 2026, SignalWire has approximately 84 employees across 5 continents, including North America, Europe and South America. Key team members include Chief Architect: B. R., Vp Of Engineering: C. R. and Founder And Coo/Cmo: S. H. Explore SignalWire's employee directory with LeadIQ.

What industry does SignalWire belong to?

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SignalWire operates in the Telecommunications industry.

What technology does SignalWire use?

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SignalWire's tech stack includes Quickbooks Online, Grafana, GitHub, Redis, 6sense, Marketo, Microsoft Azure and Piwik.

What is SignalWire's email format?

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SignalWire's email format typically follows the pattern of First.Last@signalwire.com. Find more SignalWire email formats with LeadIQ.

How much funding has SignalWire raised to date?

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As of August 2026, SignalWire has raised $42M in funding. The last funding round occurred on Mar 23, 2022.

When was SignalWire founded?

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SignalWire was founded in 2017.
SignalWire logo

SignalWire

TelecommunicationsCalifornia, United States51-200 Employees

SignalWire is a telecommunications company that provides cloud-based, programmable communications tools designed for developers and businesses. Its offerings aim to replace rigid, one-size-fits-all solutions with flexible capabilities for voice, messaging, and customer contact workflows, enabling faster customization and deployment.

The company traces its roots to the FreeSWITCH open-source project, which emerged from efforts to solve scalable call-center challenges the founders faced in building a service. Headquartered in Palo Alto, California, SignalWire is a mid-sized player focused on programmable unified communications. In 2025, SignalWire announced the launch of an open-source software development kit and reference application for next-generation communications and voice AI, reflecting ongoing expansion into developer tools.

Section iconCompany Overview

Phone number
NAICS Code
517 - Telecommunications
Founded
2017
Employees
51-200

Section iconFunding & Financials

  • $42M

    SignalWire has raised a total of $42M of funding over 5 rounds. Their latest funding round was raised on Mar 23, 2022 as a Series B.

  • $25M - $50M

    SignalWire's revenue is estimated to be in the range of $25M - $50M

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