SignalWire, Inc.

Brookfield, WI · Founded 2017 · Software · Still private

Programmable platform for AI voice agents and unified communications

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Updated · signalwire.com

Sector
Software
Headquarters
Brookfield, WI
Founded
2017
Latest Form D
$20M, Jun 2021
Total capital
$26.3M
Federal grants
None on recordNo awards found in SBIR/STTR, NIH, NSF or DoD records.
Private capital raised
$26.3M
3 Form D · last Jun 2021
65 months since last filing
Federal contracts
None on recordNo federal contract awards found.
Granted patents
None on recordNo USPTO grants. Applications publish after 18 months.

Capital timeline

2018201920202021FEDERAL ↑EQUITY ↓Cumulative $26.3M1st Form D$300K2nd Form D$6M3rd Form D$20M
2018201920202021FEDERAL ↑EQUITY ↓Cumulative $26.3M2nd Form D$6M3rd Form D$20M

Latest events

  • Private capital raisedForm D · SEC · 3rd filing$20M
  • Private capital raisedForm D · SEC · 2nd filing$6M
  • Private capital raisedForm D · SEC · 1st filing$300K

Node area is scaled to amount. Form D reports securities sold, which can differ from an announced round; filings are numbered in the order they were made.

Founders and team

From SEC Form D filings
  • Anthony Minessale IIExecutive Officer, DirectorNamed in SEC Form D filings
  • Daniel CarterDirectorNamed in SEC Form D filings
  • Jill MinessaleExecutive OfficerNamed in SEC Form D filings
  • Ryan FloydDirectorNamed in SEC Form D filings
  • Sean HeineyExecutive Officer, DirectorNamed in SEC Form D filings

What it has protected

No granted patents are on record.

USPTO usually publishes applications 18 months after filing, so recent applications may not be visible yet. Patents assigned under a different entity name won’t match.

Checked: USPTO granted patents and published applications · Oct 23, 2026

  • CRAZE INC.Similar federal contract value in Software · null in contracts
  • TECHNOLOGY RESEARCH CORPSimilar federal contract value in Software · null in contracts
  • My Reviewers, LLCSimilar federal contract value in Software · null in contracts
  • RapidSOS, Inc.Similar federal contract value in Software · null in contracts
  • Pulse Q&A Inc.Similar federal contract value in Software · null in contracts
  • STANDARD MEASURE LLCSimilar federal contract value in Software · null in contracts

Sources

Federal grants from SBIR/STTR, NIH, NSF and DoD records. Federal contracts from USAspending.gov. Private capital from SEC Form D. Patents from USPTO. Publications from OpenAlex. Regulatory activity from the Federal Register. Press matched on company name.

How to read this page

Figures show associations in public records, not causes or predictions. Nothing here is investment advice. An em-dash means no record was found under this company's name, not that none exists.

Data freshness

SEC Form D filings through . SBIR and STTR awards through .