S
SignalWire
A next-generation CPaaS that delivers low-layer advanced communications platform through an elastic-cloud and developer-friendly APIs
About SignalWire
SignalWire is a technology startup specializing in software-defined telecommunications. The company provides advanced communication solutions through APIs (Application Programming Interfaces), which allow developers to integrate voice, messaging, and video functionalities into their applications. SignalWire serves a diverse range of clients, including businesses that require robust communication systems, emergency service providers, and tech companies looking to enhance their communication capabilities.
Operating in the telecommunications market, SignalWire leverages its deep expertise in software and cloud-based architectures to offer scalable and flexible communication services. The company's business model revolves around providing API access to its communication infrastructure, enabling clients to build custom communication solutions without the need for extensive in-house development. This model allows SignalWire to generate revenue through subscription fees and usage-based pricing, where clients pay based on the volume of messages, calls, or video sessions they utilize.
SignalWire's market includes businesses of all sizes, from startups to large enterprises, across various industries such as customer service, healthcare, and emergency response. The company prides itself on its ability to solve complex telecom problems and offers a range of services that include SMS messaging, voice calls, and video conferencing. By focusing on automation, observability (monitoring systems to ensure they are working correctly), and operational excellence, SignalWire aims to push the boundaries of what is possible in modern communication.
In summary, SignalWire is a cutting-edge player in the telecommunications industry, providing essential communication tools through a flexible, API-driven model. The company stands out for its commitment to innovation and its ability to cater to a wide array of business needs.
Source: Dealroom company dataAt a glance
- Status
- Operational
- Founded
- 2017
- Headquarters
- Palo Alto, United States
- Employees
- 84
- Open positions
- 34
- Dealroom signal
- 74.5/100
- Industry
- Telecom
- Sector
- Telecom, Telecommunications, PaaS, Open Source, 4YFN 2023, 4YFN
- Business model
- SaaS
- Client focus
- b2b
- Investment activity
- 1 company, latest May 2018
- Capital deployed
- —
- Preferred round
- ACQUISITION
Knowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| SERIES B✓Equity / VC | Mar 2022 | — | — | T-Mobile Ventures · T-Mobile | ↗ |
| OtherOther financing | Dec 2021 | $0 | — | Undisclosed | — |
Financials
Revenue, earnings and other financial measures where available. Years marked “E” are estimates.
Growth signals
Latest recorded traffic for SignalWire is 110K monthly website visits, down 8.3% over the last three months. SignalWire's team grew 2.4% over the past year.
Similar companies
Company identity and context are open; selected comparison metrics preview what is available on the platform.
| Company | Headquarters | Status | Employees | Total funding | Valuation |
|---|---|---|---|---|---|
Fossa SystemsVertically integrated satellite manufacturing for IoT connectivity. |
Majadahonda, Spain | Operational | 53 | $19M | $41M |
LibeliumEnd-to-end IoT hardware and software solutions |
Zaragoza, Spain | Acquired | |||
Thinger.ioAn Open Source platform for Internet of Things development |
Las Rozas de Madrid, Spain | Operational | |||
ZEDEDAProvider of distributed edge orchestration and virtualization software |
Santa Clara, United States | Operational | |||
Chordata MotionChordata Motion – Movement made yours |
Barcelona, Spain | Operational | |||
QsimplusQuantum communication network software and hardware solutions |
Seoul, South Korea | Operational | |||
PhyTunes IncStaffed with experts in communication theory with extensive experience in the telecommunications industry |
Palo Alto, United States | Operational | |||
ChapChapAll-in-one mobile money app offering over 50 services with low fees and timely commissions, empowering MSMEs across Africa |
Kampala, Uganda | Operational |
Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Series A8 investors entered at this stage
Storm Ventures
Sequoia
Jerry Yang
Samsung Next
Dean Drako
Prosperity7 Ventures
T-Mobile- TVT-Mobile Ventures
Other known investors6 additional known investors
DTCP
Flucas Ventures
Luis Robles
Patrick Chang.
T Capital
Wisconn Valley Ventures
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about SignalWire on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
See SignalWire’s full profile on Dealroom
Request a free trial to see the complete deal history, financials, people graph and growth signals.
Takes under a minute. Already use Dealroom? Log in.








