SignalWire
PrivateLast Round
Series B
Extension
Mar 23, 2022
Total Funding Raised
$41.5M
Company Overview
SignalWire is a software development applications company that provides a cloud-based programmable unified communications platform for voice, video, messaging, and AI applications.
Sector
Telecommunications & Networking
Verticals
Cloud Communications, Enterprise Communication, NLP & Conversational AI, Platform-as-a-Service, VoIP
Business Model
B2B
Customer Profile
Usage-Based SaaS, Services & Consulting
AI Layer
Infrastructure
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
SignalWire Comparables
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SignalWire Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series B Extension | Mar 23, 2022 | ||||
| Series B | Jun 2, 2021 | ||||
| Series A | Aug 7, 2019 | ||||
| Seed | Mar 22, 2018 |
SignalWire Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Sequoia Capital | Series A |
| Samsung NEXT Ventures | Series B, Series A |
| Storm Ventures | Series B, Series A |
| Samsung Next TLV | Series B, Series A |
| Aramco Ventures | Series B |
| Samsung NEXT Fund | Series B, Series A |
| T-Mobile Ventures | Series B, Series B Extension |
Market signals
Structured signals derived from secondary market and firmographic data.
- Aug 7, 2025
Launched an Open Source SDK and Reference App for communications and Voice AI.
- Aug 6, 2025
Alpha version of Sigmond AI agent is now available.
SignalWire Filings
SEC and related filings with document metadata.
| Typed | Date | Amount Offered | Amount Sold | Filling | Pages | Download |
|---|---|---|---|---|---|---|
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Frequently Asked Questions
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