Coalition Systems
San Francisco, US · 3 known investors
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Coalition builds a secure communication and collaboration platform purpose-built for military operations and national security organizations. The platform unifies communication, coordination, and decision-support across the defense and intelligence ecosystem.
Also known as Coalition OS
Founders & leadership
Investors · 3
Funding
SEC filings, press & company announcementsSource: company announcements and press reports — follow each round's link for the claim.
Company profile
researched Aug 2026Coalition Systems is a defense and government technology company developing what it describes as a shared coordination layer for the national security ecosystem, marketed as Coalition OS. The product is positioned as AI coordination software for allied defense, intended to connect military forces, government agencies, intelligence services, defense technology companies and critical infrastructure operators on a single secure layer designed for the devices and conditions encountered in the field.
The company frames the problem it addresses as fragmentation in the defense software stack: in the absence of purpose-built infrastructure, military units, agencies, intelligence services and critical infrastructure operators coordinate over consumer tools such as Signal, WhatsApp, Telegram and Google Sheets. Coalition Systems aims to replace that ad hoc arrangement with a coherent operational environment spanning allied organizations, with press coverage characterizing the aim as a "Slack for military and government collaboration" and emphasizing software built for alliances rather than for a single nation, including data sovereignty considerations.
Founding story
Founder and CEO Vijay Pathak has said the company began with the observation, formed while he was pursuing a PhD in engineering at Oxford following studies in politics, foreign policy and defense at Yale, that the national security ecosystem relied on infrastructure never built for the purpose: military operators coordinating on WhatsApp, intelligence services siloed from defense technology companies, and allied forces without a shared operating layer. He describes framing this as a category to be built rather than a point product. Pathak cites an "aha" moment working on the ground with the Ukrainian Ministry of Defense in Kiev, where he observed military units coordinating live operations over Telegram channels and Signal group chats. Press coverage adds that reports of defense officials using consumer messaging apps in connection with military strikes contributed to the decision to found the company.
Traction
The company reported four employees as of its Speedrun cohort listing, has advisory and investor backing from senior former US defense and intelligence figures, and stated plans to secure pilot agreements with NATO member states.
Latest developments
Press coverage in January 2026 reported the pre-seed backing from a16z Speedrun, the founder's relocation to San Francisco to scale the company, and plans for NATO member state pilots.
▸Full profile — market position, technology, go-to-market, geography, history
Market position
Positioned as infrastructure for coalition-level coordination among allied national security organizations, differentiated from defense hardware categories such as drones and weapons by focusing on software that lets multiple countries and organization types work together securely.
The company emphasizes purpose-built, alliance-oriented software rather than nationally scoped or single-organization tools, a single shared secure layer in place of fragmented consumer messaging and spreadsheet workflows, design for field devices and conditions, and data sovereignty for participating governments.
Technology
Coalition OS is described as an AI-based coordination and communication layer, with the company's positioning also referencing AI agents, intended to operate securely across the different nodes of the national security ecosystem and on field-grade devices.
Go-to-market
Military forces and operators, government agencies, intelligence services, defense technology companies and critical infrastructure operators, with stated plans to pursue pilot agreements with NATO member states.
Geography
Headquartered in San Francisco, California, with the company site referencing San Francisco, Washington, D.C. and London; the founding team has European roots described in press coverage as Luxembourgish, and the founder has worked on the ground with the Ukrainian Ministry of Defense in Kiev.
History
The company was founded in 2025 and joined cohort 006 of Andreessen Horowitz's Speedrun accelerator, receiving pre-seed backing from the fund; coverage in January 2026 described it as the first Luxembourgish-rooted startup admitted to the program, with Pathak relocating to San Francisco to scale the business.
Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Competitors · 1
by search overlap
Companies competing with Coalition Systems for the same Google search keywords, organic and paid, via search-intersection analysis.
Timeline · 2
launches, deals, and filingsReported plans to scale operations from San Francisco and to pursue pilot agreements with NATO member states.
Coalition Systems joined cohort 006 of Andreessen Horowitz's Speedrun accelerator and received pre-seed funding; coverage described it as the first Luxembourgish-rooted startup to join the program. Amount not disclosed.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
In the news
▸Research sources · 8
primary sources listed
- Coalition Systemscoalition.systems · web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Coalition Systems do?
- Coalition Systems builds a shared, secure coordination layer for allied defense, intelligence and critical-infrastructure organizations.
- Who founded Coalition Systems?
- Coalition Systems was founded by Vijay Pathak.
- Who are Coalition Systems's investors?
- Coalition Systems's investors include Blitzscaling Ventures, NextGen Venture Partners, Andreessen Horowitz.
- Where is Coalition Systems headquartered?
- Coalition Systems is headquartered in San Francisco, US.