Brian T MacCarthy

Managing Partner, Booz Allen Ventures | Venture Capital Investor | Board Advisor | Active TS/SCI

📍 United States🔄 Updated September 2026💼 23 investments📅 4 years investing🗓 Last invested Apr 2026
VC🌍 United States20+ investmentsInvested this year
23
Total investments
4
Early stage
9
Mid stage
4
Late stage
4y
Years active

Portfolio

21 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Venture Investor
Apr 2026
Strategic UAS capabilities, now organic and scalable to the tactical level unit.
Venture Investor
Apr 2026
NODA is the original and proven autonomy orchestrator. This is a fundamentally different class of military capability. A new principle of warfare in the autonomous age. We sit above the autonomy stack to employ gov-designed, threat-specific tactics in the right combinations at the right time to ensure the most capable multi-domain platforms dont react to the enemys decision cycle. They terminate it. No hardware added to platforms. No software installed. No vendor between the warfighter and the best platforms for the mission. While national security is our North Star, we embrace diverse skillsets and are looking for exceptional teammates from all backgrounds. If you share our passion for solving seemingly impossible problems against all odds, check out our careers page at https://www.NodaIntelligence.ai/careers or email us at ContactUs@nodaIntelligence.ai
Venture Investor
Apr 2026
Portal Space Systems is a Seattle-based space start-up solving the need for mobility in space. Our flagship product, the Supernova satellite bus, is engineered for rapid and long-range in-space maneuverability. Our payload-agnostic, 500 kg spacecraft features a novel solar-thermal propulsion system, which enables an ultra-high delta-v, a 50X improvement over existing products on the market. The company was founded in 2021 by industry leader Jeff Thornburg, alongside COO Ian Vorbach and VP of Engineering Prashaanth Ravindran. We are on a mission to empower the next generation of space operators to maintain space superiority.
Venture Investor
Apr 2026
Ulysses is a technology company on a mission to steward the ocean for an abundant future. Our oceans are in trouble; we’ve neglected them, and we allow bad actors to misuse them. Ulysses builds and operates networks of autonomous vehicles to keep our oceans safe, healthy and prosperous. Were developing autonomous underwater drones, robotics, and AI systems to solve critical problems in ocean conservation, offshore infrastructure, and maritime security. We are a seed-stage company backed by top VCs like Lowercarbon Capital, Superorganism and ReGen Ventures.
Venture Investor
Jul 2025
Corshas patented Machine Identity Provider (m-IdP) allows enterprises to securely connect systems, move data, and automate with confidence from anywhere to anywhere, ensuring that organizations can protect their systems within complex and dynamic environments like operational systems, ICS and critical infrastructure. Our platform empowers CTOs, CISOs and other security professionals to protect their data and applications as they traverse hybrid and multi-cloud environments. What sets Corsha apart is its ability to bring the proven security benefits of machine identity into the realm of APIs and manufacturing protocols. This dynamic and continuous verification process is a fundamental element of zero-trust frameworks, enhancing the overall security posture. Corshas platform addresses essential security drivers, including protection against machine-to-machine exploits like man-in-the-middle attacks and API credential stuffing. It also acts as a catalyst for enhancing security and automation in data movement workflows across diverse networks, providing dynamic machine identities for API clients and a unified view of machines in hybrid deployments. Through our central management console, security professionals have full visibility into and complete control of all API activity across cloud, enterprise and operational networks. Our platform is deployed as Corsha Cloud (SaaS) or Corsha Enterprise (self-hosted). It integrates with modern DevOps pipelines and is cloud-native, highly scalable, and platform agnostic. Contact us to learn more: info@corsha.com
Venture Investor
Jul 2025
We are building the future of modular, open-source architectures supporting the Department of Defense requirements to create Affordable Mass. Firestorm is redefining military expectations for on-site modularity to support the widest array of mission areas.
Venture Investor
Jun 2025
Organizations are full of rules. Following the rules to get something done in a bureaucracy is often a Sisyphean effort, even for those on the inside. ConductorAI helps users in large organizations get to yes faster by leveraging the latest AI advancements to navigate paperwork, opaque processes, and everyday compliance challenges.
Venture Investor
May 2025
Scout AI is a frontier AI lab for U.S. defense. It was founded in 2024 by Colby Adcock and Collin Otis with a mission to deploy mission-ready AI agents across unmanned systems for the Department of War and its allies. Its Fury foundation model transforms uncrewed ground, air, sea, and space platforms and payloads into intelligent, collaborative teammates that multiply warfighter effectiveness. Scout AI is based in Sunnyvale, CA and is backed by leading institutional investors including Booz Allen Ventures, Align Ventures, Draper Associates, and Perot Jain.
Venture Investor
Apr 2025
Founded in 2015, Shield AI is a venture-backed defense-tech company with the mission of protecting service members and civilians with intelligent systems. Its products include Hivemind autonomy software, V-BAT and X-BAT aircraft, and Aechelon simulation and synthetic reality technologies. With offices and facilities across the U.S., Europe, the Middle East, and Asia-Pacific, Shield AI’s technology actively supports operations worldwide.
Venture Investor
Jan 2025
SEEQC is developing the first digital quantum computing platform for global businesses. SEEQC combines classical and quantum technologies to address the efficiency, stability and cost issues endemic to quantum computing systems. The company applies classical and quantum technology through digital readout and control technology and through a unique chip-scale architecture. SEEQC’s quantum system provides the energy and cost-efficiency, speed and digital control required to make quantum computing useful and scalable. The company is one of the first companies to have built a superconductor multi-layer commercial chip foundry and through this experience has the infrastructure in place for design, testing and manufacturing of quantum-ready superconductors. SEEQC is a spin-out of Hypres, the world’s leading developer of superconductor electronics. SEEQC’s team of executives and scientists have deep expertise and experience in commercial superconductive computing solutions and quantum computing. SEEQC is based in Elmsford, NY.
Investor
Nov 2024
Stop deepfakes before they become a problem with Reality Defender’s proactive AI-generated media detection platform. Detect dangerous AI-generated and manipulated content across audio, video, images, and text with our enterprise-grade API and web app.
Venture Investor
Jul 2024
Quindar provides a cloud hosted, one-stop-shop for spacecraft analysis, test and operations. We maintain the infrastructure and software so you only need to manage your spacecraft procedures and operational processes. Control all of your unique missions on a single platform that scales to each constellations requirements. Spend more time focusing on your mission and less on the software with Quindars comprehensive platform.
Venture Investor
Jan 2024
Second Front is a public-benefit, venture-backed company delivering mission-critical software to the world’s democracies. We work with organizations to simplify and accelerate every step of software delivery to government and regulated networks, including development, accreditation, operation, and extensibility. Together with our customers and partners, were powering software for the free world. Learn more at secondfront.com
Venture Investor
Nov 2023
Albedo is developing low-flying satellites that will capture visible and thermal imagery at the highest resolution commercially available. By making aerial quality imagery globally available, easy to purchase, and transparent to task, we aim to catalyze market growth and spur new applications. The world is rapidly changing and a new level of visibility and transparency is required to solve some of our largest problems. Albedo’s 10cm visible and 2m thermal imagery will fuel insights for industries such as mapping, insurance, utilities, solar, agriculture, carbon offsets, infrastructure sustainability, national security, and much more.
Venture Investor
Sep 2023
HiddenLayer, a Gartner-recognized Cool Vendor for AI Security, is the leading provider of Security for AI. Its AISec Platform unifies supply chain security, runtime defense, posture management, and automated red teaming to protect agentic, generative and predictive AI applications. The platform enables organizations across the private and public sectors to reduce risk, ensure compliance, and adopt AI with confidence. Founded by a team of cybersecurity and machine learning veterans, HiddenLayer combines patented technology with industry-leading research to defend against prompt injection, adversarial manipulation, model theft, and supply chain compromise. The company is backed by strategic investors including M12 (Microsoft’s Venture Fund), Moore Strategic Ventures, Booz Allen Ventures, IBM Ventures, and Capital One Ventures.
Show all 21 investments ↓
Experience · 24 entries
All (24)
Investments (23)
2026
Venture Investor
Apr 2026
Hadean is a UK-based technology company, specialising in AI, simulation and spatial computing to provide the most accurate representation of the real-world. Hadean bridges physical and virtual worlds enabling defence forces, government agencies and businesses to plan, train and make faster, better decisions. Hadean provides out-of-the-box simulation and orchestration tools which are used by armed forces to rehearse, train and plan combat scenarios. This is powered by AI, which rapidly generates scenarios and agents to represent virtual and training forces in live and virtual environments.
Venture Investor
Apr 2026
Strategic UAS capabilities, now organic and scalable to the tactical level unit.
Venture Investor
Apr 2026
NODA is the original and proven autonomy orchestrator. This is a fundamentally different class of military capability. A new principle of warfare in the autonomous age. We sit above the autonomy stack to employ gov-designed, threat-specific tactics in the right combinations at the right time to ensure the most capable multi-domain platforms dont react to the enemys decision cycle. They terminate it. No hardware added to platforms. No software installed. No vendor between the warfighter and the best platforms for the mission. While national security is our North Star, we embrace diverse skillsets and are looking for exceptional teammates from all backgrounds. If you share our passion for solving seemingly impossible problems against all odds, check out our careers page at https://www.NodaIntelligence.ai/careers or email us at ContactUs@nodaIntelligence.ai
Venture Investor
Apr 2026
Portal Space Systems is a Seattle-based space start-up solving the need for mobility in space. Our flagship product, the Supernova satellite bus, is engineered for rapid and long-range in-space maneuverability. Our payload-agnostic, 500 kg spacecraft features a novel solar-thermal propulsion system, which enables an ultra-high delta-v, a 50X improvement over existing products on the market. The company was founded in 2021 by industry leader Jeff Thornburg, alongside COO Ian Vorbach and VP of Engineering Prashaanth Ravindran. We are on a mission to empower the next generation of space operators to maintain space superiority.
Venture Investor
Apr 2026
Ulysses is a technology company on a mission to steward the ocean for an abundant future. Our oceans are in trouble; we’ve neglected them, and we allow bad actors to misuse them. Ulysses builds and operates networks of autonomous vehicles to keep our oceans safe, healthy and prosperous. Were developing autonomous underwater drones, robotics, and AI systems to solve critical problems in ocean conservation, offshore infrastructure, and maritime security. We are a seed-stage company backed by top VCs like Lowercarbon Capital, Superorganism and ReGen Ventures.
Show all 24 entries ↓
Investment activity
2022–2026 · 23 investments
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