# Surtr Defense

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/surtr-defense

- Industry: Software
- Headquarters: San Francisco, US
- Website: www.surtrdefense.com
- Total disclosed funding: $4.8M
- Latest round: Seed (Jul 7, 2026)
- Investors on record: 5

## About

Based in the US, Surtr Defense, Inc. specializes in developing advanced command-and-control platforms aimed at enhancing military network interoperability and trust. They focus on creating cutting-edge solutions for defense agencies.Surtr Defense, Inc. was founded in 2026 in San Francisco, US. The company develops advanced technology solutions for military applications. The firm successfully raised USD 4.8 mn in Seed funding on July 7, 2026, with key investors such as Allegis Capital, Eniac Ventures, Gaingels, Robinhood Ventures, and Streamlined Ventures. The total amount raised to date is USD 4.8 mn. No subsidiary relationships or prior mergers have been disclosed.Surtr Defense focuses on developing advanced command-and-control (C2) platforms aimed at enhancing interoperability and trust within military networks. Their core product, ParallaxOS, serves as an open operating system specifically designed for counter-unmanned aerial systems (counter-UAS). This platform enables seamless integration of various sensors—including radar, RF sensors, EO/IR cameras, and acoustic arrays—allowing users to aggregate and analyze data in real-time. Surtr Defense targets military and defense agencies primarily in North America and Europe, providing solutions that streamline operations for warfighters in live environments. By facilitating rapid integrations, ParallaxOS can incorporate existing technologies such as NATO SAPIENT, Link 16, and ATAK within days, significantly reducing the time required for operational readiness. The end users include defense contractors, military forces, and government agencies that require robust decision-making tools for complex tactical scenarios.Surtr Defense operates on a business model characterized by partnerships and direct sales to government agencies and defense contractors. The primary revenue stream derives from the licensing of ParallaxOS and associated services, with clients typically entering into agreements that allow them to utilize the platform on their infrastructure, either on-premises or via GovCloud. Transactions involve structured contracts that may include support and integration services, enabling clients to maintain control over their data and operational processes. Pricing for these services is determined based on the specific configurations and integrations chosen by the client, reflecting the custom nature of the solutions provided. Surtr Defense’s revenue structure is designed to accommodate the unique needs of military operations, ensuring that clients receive comprehensive support tailored to their operational requirements.In July 2026, Surtr Defense, Inc. raised USD 4.8 mn in Seed funding to expand its team, pursue Pentagon programs, and obtain export licenses for deployments in countries including Ukraine. The company plans to develop new product features for ParallaxOS and is targeting expansion into European defense markets by the end of 2027.

## Funding rounds

- Seed, Jul 7, 2026, $4.8M — Eniac Ventures, Streamlined Ventures, Gaingels, Allegis Capital, Robinhood Ventures

## Investors

- Eniac Ventures (https://capitalatlas.ai/funds/eniac-ventures) — Seed
- Streamlined Ventures (https://capitalatlas.ai/funds/streamlined-ventures) — Seed
- Gaingels (https://capitalatlas.ai/funds/gaingels) — Seed
- Allegis Capital — Seed
- Robinhood Ventures (https://capitalatlas.ai/funds/robinhood-ventures) — Seed