US NUCLEAR CORP.

US Nuclear Corp

Overview

US Nuclear Corp (ticker: UCLE) designs, manufactures, and markets radiation detection and monitoring equipment. The company operates through three divisions and supplies hardware, sensors, and software for detecting and identifying radioactive materials, leaks, contamination, and related hazards in nuclear, medical, industrial, and security environments.

Divisions and primary offerings

• Optron Scientific Company, Inc. (doing business as Technical Associates)
  • Designs and manufactures radiation detection monitors and handheld devices.
• Overhoff Technology Corporation
  • Specializes in tritium detection and monitoring; produces tritium air monitors, water monitors, and related instrumentation.
  • Produces Overhoff DC amplifiers (electrometers) with very high sensitivity and low leakage, including features to reject radon-induced counts.
• Electronic Control Concepts
  • Produces test and maintenance meters for X-ray machines used in medical and industrial settings.

Key product categories and capabilities

• Radiation water monitors
  • Detect radioactive materials in drinking water, groundwater, rainfall, rivers, and lakes.
  • Designed to detect alpha, beta, gamma, and neutron radiation.
• Tritium monitors (Overhoff)
  • Long-standing focus for more than two decades; supports monitoring in nuclear power, research, and related facilities.
  • Includes dual ion chamber and dual proportional detectors for air monitoring, with Nafion tubing to separate noble gases from tritium.
• Air and stack monitors
  • Monitors for tritium and other airborne radioisotopes used in nuclear facilities.
• Radon monitors and switches
  • Devices for radon measurement and mitigation control, some with data storage.
• Vehicle, personnel, exit, and room monitors
  • Used in hospitals, nuclear medicine departments, laboratories, and security contexts to detect contamination at entry/exit points and in areas such as laundry and waste handling.
• Handheld survey meters and personal dosimeters
  • Lightweight detectors for field work and routine screening (radon, gamma surveys, etc.).
• Port security equipment
  • Passive detection solutions for containers, including P-8 Neon Quick-Scan X-ray detector, RAD-CANSCAN (container interior mapping), and TBM-6SPE multi-detector system for alpha, beta, gamma, and neutron emissions.
  • Systems emphasize radiation detection without using radioactive sources in the scanner.
• Software
  • Overhoff Overview software for centralized radiation and environmental monitoring across facilities; supports real-time data viewing, reporting, and maintenance scheduling and can integrate detectors, environmental monitors, and related data (wind, pressure, door status).

Product developments and initiatives

• DroneRAD Aerial Radiation Detection
  • Partnership with FlyCam UAV to mount radiation and chemical sensors on UAV platforms (the NEO octocopter) for real-time surveying of large areas.
• DroneSensor system
  • Integrates UAV-mounted sensors for radiation and chemical detection with wireless ground-station data transmission.

Intellectual property and branding

• Provisional patent filed for tritium products.
• U.S. trademark for the US Nuclear Corp name and logo registered in December 2013.
• No current U.S. patents on the company’s products.

Markets and customers

• Domestic customers include the nuclear power industry, universities, hospitals, government agencies, emergency responders, and emergency management organizations.
• International customers comprise a smaller portion of revenue, with growth expectations in regions such as South Korea, Japan, Australia, France, and Germany.
• Examples of current and prospective customers: Department of Homeland Security; Lawrence Livermore National Laboratory; Los Alamos National Laboratory; Department of Defense; FBI; CIA; U.S. Navy; Chevron; Bechtel; biotechnology labs; hospitals; and universities.
• International revenues were 7.85% of total revenue in 2025, down 15.97% from 2024.

Corporate structure, ownership, and capital

• Corporate history
  • Incorporated in Delaware as APEX 3 Inc. (2012) and renamed US Nuclear Corp in May 2012.
  • In October 2013, completed a reverse merger with Optron Scientific, exchanging all Optron Scientific shares for US Nuclear Corp shares; the merger included a cancellation agreement with Robert I. Goldstein.
• Ownership and stock characteristics
  • As of December 31, 2025, management owned 33.5% of the outstanding common stock, with the CEO, chairman, and related entities holding substantial control.
  • 53 holders of record of common stock at the referenced time.
  • Publicly traded on the OTC Bulletin Board under the symbol UCLE; DTCC-eligible.
• Financing and capital needs
  • The company indicated a potential capital need of about $5 million over the next 12 months to support growth plans.
• Public company status and risk posture
  • Classified as a smaller reporting company and operates in a competitive, capital-intensive sector with exposure to revenue volatility, reliance on key personnel, and potential dilution from future financing.

Facilities and lease arrangements

• Canoga Park, California — 7051 Eton Avenue, Canoga Park, CA 91303 — 6,000 square feet.
• Milford, Ohio — 1160 U.S. Route 50, Milford, OH 45150 — 8,000 square feet.
• Lease arrangements
  • Gold Team agreed to forego rent at both properties until July 1, 2025; no lease expense was recorded for the six months ending June 30, 2025.
  • Starting July 1, 2025, Milford rent was reduced to $6,000 per month.
  • Canoga Park lease renewed on a month-to-month basis with continued rent foregone by Gold Team.

Regulatory and market context

• Demand for radiation detection equipment is influenced by regulatory bodies such as the NRC and other national regulators.
• The company faces competition from larger players and the challenges of attracting and retaining capital, customers, and skilled personnel.

Summary

US Nuclear Corp is a small-cap, OTC-listed manufacturer of a broad range of radiation detection and monitoring products. Its three operating divisions focus on water and air/tritium monitoring, handheld and portable detectors, and X-ray instrument maintenance. The company serves nuclear, government, industrial, and healthcare markets and is pursuing growth through new products (including drone-based sensing) and geographic expansion.