Allen Control Systems (ACS) is a defense robotics company building Bullfrog, an autonomous robotic weapon station that counters drones using conventional firearms rather than expensive missiles or lasers. Bullfrog combines AI, computer vision, and proprietary motion-control systems to detect, track, and precisely engage fast-moving aerial threats, transforming legacy and modern weapons like the M240 machine gun into accurate counter-UAS systems. By relying on cheap standard ammunition, ACS aims to close the cost-asymmetry gap that makes defending against mass-produced drones expensive. The system is designed for passive operation and compatibility with widely fielded weapons. Headquartered in Austin, Texas, with offices in Alexandria, Virginia and Huntsville, Alabama, ACS raised a $30M Series A in March 2025 led by Craft Ventures.
Allen Control Systems
ActiveBullfrog turns standard weapons into AI counter-drone gun systems
Total raised
$30M
1 round
Stage
Series A
Mar 2025
Team
11-50
since 2023
Pricing
Enterprise
Founded
2023
Austin, United States
Agent-ready
—
Bullfrog autonomous robotic weapon station
AI computer-vision drone tracking and targeting
Engages drones with standard ammunition
Compatible with legacy weapons (e.g., M240)
Proprietary precision motion-control systems
Passive, low-signature operation mode
Cost-asymmetric counter-UAS defense
Modular integration onto fielded platforms
10/100
Early
MCP server
Public API
Webhooks
OAuth 2.0
SDKs
No public agent surfaces detected yet.
Mar 2025 Series A $30M ● Craft Ventures
Capital network
$30M raised ·3 backers·10 network links
- Backers3
- Shared portfoliocompanies these backers also fund
- Extended networkfunds that co-invest alongside them
Epirus
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Defense AIAI Drones
Vannevar Labs
AI-powered intelligence and electronic warfare software for national security
Defense AI
Neros Technologies
American-made FPV attack drones built for mass production
AI Drones
Auterion
Software-defined autonomy and AI for drone swarms across air, land and sea
Defense AIAI Drones
Castelion
Mass-producing affordable hypersonic weapons for defense
Defense AIAI Aerospace
Skydweller Aero
Solar-powered autonomous aircraft for perpetual flight
Defense AIAI Aerospace
- What is Bullfrog?
- Bullfrog is ACS's autonomous robotic weapon station that uses AI and computer vision to shoot down drones with standard ammunition.
- Why use bullets instead of lasers?
- Standard ammunition is far cheaper than missiles or lasers, addressing the cost asymmetry of defending against mass drones.
- How much has ACS raised?
- ACS raised a $30M Series A in March 2025 led by Craft Ventures, with Inspired Capital and Rally Ventures.
- Where is ACS based?
- Austin, Texas, with offices in Alexandria, Virginia and Huntsville, Alabama.
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