Defense Tech Startups

Parallel Venture Capital is an early-stage investment firm that backs U.S. and allied-founded startups developing dual-use technologies serving both government and commercial customers. It focuses on defense and national security applications, connecting portfolio companies to the Department of Defense, Intelligence Community, and allied partners.

1 investor

Parry integrates software, hardware, and autonomy at the edge to turn complex technologies into mission-ready systems for contested defense environments. It builds edge compute hardware and software infrastructure that connect data, platforms, and applications for military mission systems following open architecture (MOSA) standards.

1 investor

Patriot Group International (PGI) is a mission support service provider offering expeditionary services to clients in the intelligence, defense, and private sectors, with operations across more than 50 countries. Founded in 2004, its leadership draws on backgrounds in U.S. military special operations and government intelligence agencies.

1 investor

Pathfinder Solutions Group is a consulting firm that works exclusively with the venture-backed portfolio companies of Stony Lonesome Group, supporting its "Mentor Capital" model. It helps early-stage dual-use companies gain customer traction in both the DOD/government and commercial sectors.

1 investor

Pax VC is a venture capital firm that invests in founders building technologies in foundational and physical-world industries such as defense, aerospace, energy, and industrial supply chains. It focuses on early-stage ("zero to one") companies working on hardware, deeptech, and dual-use technologies.

1 investor

PentenAmio develops digital security technologies for government and defence customers, including secure mobility solutions (AltoCrypt) for accessing classified data, AI-driven cyber defence and training, and electronic deception systems (TrapRadio). The company operates across civil and military applications, primarily serving the UK, Australia and allied nations.

1 investor

Per Vices designs and manufactures software-defined radios (SDRs) for mission-critical applications, offering both commercial off-the-shelf solutions and custom designs. The company serves defense, communications, and other industries requiring high-performance radio systems.

1 investor

Peraton provides national security services and technology to U.S. government customers, including cyber-hardened systems, systems engineering, and mission support across defense, intelligence, and civilian agencies such as the FAA. It also offers Peraton[x], an enterprise agentic AI platform built for government operations and missions.

1 investor

Phantom Photonics develops quantum 3D remote sensing technology, including specialized sensors for undersea asset monitoring with defense and civilian applications. Spun out of the University of Waterloo, the company builds quantum coherence systems designed for noise resilience and resistance to blinding attacks.

1 investor

Phasor Solutions develops and procures technology spanning chip design, software, and artificial intelligence, with a focus on high-availability, secure systems for demanding operational environments including on-the-move deployments. Its offerings appear aimed at defense or mission-critical operational use.

1 investor

Pierce Aerospace develops unmanned aircraft systems (UAS) remote identification and low-altitude airspace monitoring solutions for government and commercial sectors. The company serves defense, public safety, and aviation operators with technologies proven through US Military experimentation and awarded first place in remote ID technology.

1 investor

PixelSight builds a visual intelligence system that combines passive sensing hardware with an AI intelligence layer for early detection and real-time classification of low-signature threats across land, sea, and air. It targets defense and civil safety applications, offering multi-domain threat detection with an open API for integration into existing systems.

1 investor

Planetary Systems (PSAI) builds AI systems for data fusion and interoperability across launch and orbital operations, accelerating data flow and insight generation for decision-making in the space sector. It serves government and commercial space organizations, and is an approved analytics provider to the U.S. Space Force's SDA TAP Lab at U.S. Space Systems Command.

1 investor

Plasma Processes is a materials science company that develops, manufactures, and coats engineered materials for use in extreme environments, offering processes such as plasma spray coatings, additive manufacturing, machining, and testing. It serves defense, aerospace, and space markets—including propulsion components and thrusters through its Rubicon Space Systems line—as an AS9100D/ISO9001-certified non-traditional defense contractor.

1 investor

PNO provides cybersecurity, AI-driven solutions, and high-performance computing for organizations in aerospace, edge computing, public safety, and critical infrastructure. It works as a strategic partner to design tailor-made solutions that protect against threats and use data and intelligence to improve operations.

1 investor

Point Blank Enterprises manufactures body armor and protective equipment, including ballistic soft armor vests and duty gear, for law enforcement and military users. It operates multiple product lines and brands within the personal protection and tactical equipment industry.

1 investor

Polysentry ingests intelligence data from multiple sources (internal data, deep web, HUMINT, SIGINT, MASINT, OSINT) and applies natural language processing to analyze records, identify relationships across sources, and generate reports. The platform supports collaboration, querying, visualization, and monitoring of data over time.

1 investor

Powerus builds and integrates autonomous air and maritime systems, including heavy-lift VTOL platforms, tactical unmanned aircraft, and unmanned surface vessels, unified under a common systems architecture. Through subsidiaries PowerAir and PowerSea, it serves defense, border security, emergency response, agriculture, and infrastructure operations, with U.S.-based manufacturing.

1 investor

Powerbox (PRBX) designs and supplies power conversion products, including DC/DC converters and power supplies, for demanding sectors such as defense and harsh-environment applications. Its offerings emphasize compliance with military standards and reliability under unstable operating conditions.

1 investor

PRE Labs designs, tests, and manufactures ballistic body armour for security, defence, military, and police organizations, with products certified to NIJ 0101.06 standards. The company is owned and operated in Canada and serves customers ranging from individuals to large agencies across North America and internationally.

1 investor

PrecisionX Group manufactures high-reliability precision metal components using processes such as deep draw and progressive stamping, micro-stamping, Swiss and CNC machining, wire EDM, and metal diaphragm production. It serves critical-use applications in aerospace and defense, medical devices, satellite and space, electric vehicles, mining, semiconductors, and other industrial markets.

1 investor

RTX designs, builds and supports aerospace systems and defense technologies, serving commercial aviation and national defense customers. It combines advanced digital tools and scalable design and manufacturing approaches across three aerospace and defense businesses.

1 investor

PreVeil provides secure communication and file-sharing platforms for business and personal use, built on a different security paradigm than traditional data protection approaches. The company serves enterprises and organizations, particularly those with compliance and cybersecurity requirements.

1 investor

Primus Aerospace, founded in 1989, provides high-complexity precision machining and build-to-print manufacturing of machined and fabricated assemblies for the aerospace and defense industries. Its work covers applications including munitions, missiles and rockets, hydraulics and actuation, engines and controls, aerostructures, and avionics.

1 investor