Overhoff Technology

What Overhoff Technology does

Overhoff Technology Corporation designs and manufactures tritium monitoring instrumentation from its headquarters in Milford, Ohio. Founded in 1972, the company has specialized exclusively in tritium detection for over 50 years and produces portable air monitors (200, 400, and SP1400 Series), stationary fixed and modular monitors, ultra-sensitive gas proportional systems (Models 593/593.2), tritium-in-water monitors (Models 1925 and 1925-PR), passive tritium and C-14 air samplers, surface contamination monitors, and tritium calibration equipment. The underlying technology stack centers on ionization chambers of varying volumes (200cc, 1400cc) with proprietary features including alpha pulse suppression circuitry for radon/cosmic-ray rejection, cruciform-geometry gamma compensation, wire-grid ionization chamber walls that reduce HTO plate-out contamination by ~1,000x, and coincidence counting for noise rejection. All instruments are built in the USA under ISO-9001:2015 and ship with NIST-traceable calibration certificates.

Customers are concentrated in highly regulated end-markets: commercial and research nuclear power plants (including CANDU heavy water reactors where Overhoff maintains a reference installation at Cernavoda NPP in Romania), nuclear and pharmaceutical research laboratories, military and government facilities handling tritium for fusion, thermonuclear, and accelerator programs, and industrial manufacturers involved in tritium recovery, storage, and processing.

The revenue model combines one-time equipment sales — quote-based, with each instrument configurable across chamber size, sensitivity tier, response time, and application-specific options (HTO discrimination, C-14 capability, ruggedized enclosures, RS-232/Ethernet/4-20mA outputs) — with recurring factory calibration and repair services, on-site calibration equipment sales, and replacement parts revenue tied to pump life of 1,000–2,000 hours. Distribution is direct B2B globally, supported by a website with request-for-quote functionality, sales representatives, technical content marketing, and basic social media presence.

Name

Overhoff Technology

Legal name

Overhoff Technology Corporation

Website

https://overhoff.com

Company type

Private

Founded year

1972

Operating status

Operating

Headcount range

11–50 employees

Short description

Overhoff Technology Corporation designs and manufactures tritium monitoring instrumentation — portable, stationary, water, surface, and calibration products — serving nuclear power plants, nuclear research facilities, military and government agencies, pharmaceutical laboratories, and industrial tritium processors worldwide since 1972.

Ownership category

akta.pro rank

Product category

Tritium Monitoring Instrumentation

NAICS

Other Measuring and Controlling Device Manufacturing (334519), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (3345)

SIC

Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Radiation Detection Instruments & Systems (Portal monitors, spectrometers, contamination monitors) (EUAKAIAK)

akta.pro secondary industries

Continuous Emissions Monitoring Systems (CEMS) & Stack Testing (EUAHADAA), Stack/Source Emissions Testing & CEMS Support (EUAHACAB)

Keywords

• Tritium monitoring instruments
• Radiation detection equipment
• Nuclear instrumentation
• Ionization chamber detectors
• Air and water monitors

Headquarters

HQ city

Milford

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Tritium Monitoring Equipment Sales: Overhoff generates revenue from the design, manufacturing, and sale of fixed and portable tritium monitoring instruments. Products range from portable monitors (200 Series, 400 Series, SP1400 Series) to stationary systems for nuclear facilities. The company sells directly to end-users including nuclear power plants, research facilities, and government/military applications.
2. Calibration Services: Annual tritium gas calibration and repair services offered at the factory. Customers can send monitors back for NIST-traceable calibration certification. This represents a recurring service revenue stream tied to regulatory compliance requirements.
3. Calibration Equipment Sales: Sale of tritium calibration equipment including gas calibration standards (lecture bottles with tritium calibration gas), gas calibrator panels, and calibration resistors. Allows customers to perform on-site calibration.
4. Spare Parts and Replacement Components: Sale of replacement parts including pumps, filters, ionization chambers, and electrometer modules. Pump life is typically 1,000-2,000 hours of actual use, creating recurring replacement revenue.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Overhoff Technology designs and manufactures fixed and portable tritium monitoring instruments, including air monitors, water monitors, surface contamination monitors, stack and effluent monitors, and passive air samplers. The company also provides NIST-traceable factory calibration services, repair services, training, and tritium calibration equipment. Products serve nuclear power plants, nuclear research and pharmaceutical laboratories, military and government applications, and industrial tritium processing facilities worldwide.

Product overview

Overhoff Technology offers a comprehensive portfolio of precision tritium monitoring instrumentation as a single unified product line rather than a platform-plus-modules architecture. The portfolio centers on portable and stationary tritium air monitors (including the 200 Series, 400 Series, SP1400 Series, and stack/effluent monitors like the Model Triathalon-H3), supplemented by passive air samplers (Model TASC-HTO-HT and TASC-HTO-HT-C14 for C-14 collection), tritium water monitors (Models 1925 and 1925-PR), ultra-sensitive gas proportional monitors (Models 593/593.2), calibration equipment (Tritium Gas Calibrator), and specialized wire-grid ionization chambers for process monitoring. The products share common underlying ionization chamber and gas proportional counting technologies, with varying chamber sizes, configurations, and sensitivity levels to serve applications from emergency field monitoring to ultra-low-level nuclear facility compliance.

Differentiator

Problem solved

Functional benefit

Products and services

• Model 200SB Portable Tritium Monitor

Quantifiable outcome

• MDA of 0.01 µCi/m3 (1 kBq/m3) achievable with ultra-sensitive gas proportional systems
• +3 more outcomes

Named customers5 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• AECL (Atomic Energy of Canada Limited)coreStrategic or Co-development Partner · 1 January 2004Overhoff worked in conjunction with AECL in 2004 to develop the Model 1925 tritium water monitor, originally designed and installed at Cernavoda Nuclear Power Plant in Romania. AECL is a Canadian federal Crown corporation specializing in nuclear technology, including CANDU reactor technology. This collaboration demonstrates Overhoff's capability to develop specialized solutions for major nuclear technology providers.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Ludlum Measurements: US-based manufacturer of radiation detection and measurement instruments serving nuclear, homeland security, and laboratory markets. Overlaps with Overhoff in tritium and area monitoring, with a similar direct-sales specialty-instrumentation model.
• Rotem Industries: Israeli manufacturer of nuclear and radiation monitoring instrumentation, including tritium and gaseous effluent monitors. Comparable niche instrumentation focus with similar nuclear power plant customer base.
• ATOMTEX: Belarus-based manufacturer of radiation detection and dosimetry equipment serving nuclear, security, and environmental markets. Overlaps with Overhoff in radiation monitoring instrumentation.
• Tracerco (Johnson Matthey): Part of Johnson Matthey, Tracerco provides radiation monitoring, tritium detection, and nuclear measurement services to the nuclear power and oil & gas industries. Direct overlap with Overhoff in tritium stack and area monitoring.
• Bertin Instruments: European radiation and nuclear measurement instrumentation company offering environmental radiation monitors and tritium detection systems. Closely comparable to Overhoff in tritium air and process monitoring applications.
• Canberra (now part of Mirion): Historical nuclear radiation detection brand now under Mirion, with a long heritage of tritium and effluent monitoring products. Direct historical peer to Overhoff in the tritium monitoring segment.

Broad incumbents

• Thermo Fisher Scientific: Global analytical and life-sciences instrumentation leader with a radiation detection and nuclear measurement product line. Comparable to Overhoff in nuclear measurement technology but serves a much broader customer base.
• Mirion Technologies: Public radiation-detection company offering a broad portfolio of radiation monitoring, dosimetry, and nuclear instrumentation. Direct overlap with Overhoff in tritium and area monitoring, but operates at far greater scale and across many radiation types.

Emerging players

• S.E.A. (Science & Engineering Associates): Small US firm specializing in tritium handling, processing, and monitoring equipment for fusion, national labs, and nuclear applications. Direct overlap with Overhoff in tritium-specific measurement and process monitoring.

Regional players

• Fuji Electric (Radiation Measurement Systems): Japanese industrial conglomerate with a nuclear/radiation measurement product line serving Japanese and broader Asian nuclear power plants. Comparable instrumentation scope with a regional concentration.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/overhoff-technology-corp

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Overhoff Technology