What Phds Company does

PHDS Co. is a privately held Knoxville, Tennessee-based designer and manufacturer of compact High-Purity Germanium (HPGe) gamma-ray detector systems used to detect, identify, localize, and quantify radioactive materials in field, laboratory, and facility environments. The company was founded circa 2004 (firmographics cite 2003) and operates with a 1-10 person headcount, selling exclusively into government, military, national laboratory, and international nuclear body accounts — including the U.S. Military, DTRA, NNSA, Sandia, Lawrence Livermore, Savannah River, Pacific Northwest, Savannah River Site, Sellafield Ltd, and the IAEA. The customer mix reflects a deliberate B2G/B2B positioning around mission-critical radiological detection for CBRNE operations, nuclear safeguards, decommissioning, and increasingly radiopharmaceutical QA.

The product portfolio is built on proprietary mechanically-cooled HPGe technology that eliminates the liquid-nitrogen cooling required by traditional germanium detectors. The six core product lines are the GeGI gamma-ray imaging detector (described as the most sophisticated portable gamma-ray imager available, with Compton and pinhole imaging modes and ~+/-1 degree angular resolution), the Fulcrum family covering 8 lb field detectors at 12% efficiency up through the Fulcrum-40h at 40% efficiency, the Fulcrum-L laboratory detector for radiopharma with GMP-compatible software integration, the military-grade LoPro with TAK compatibility, and the NP Imager developed under DOE SBIR funding for real-time radiochemistry monitoring. All systems run onboard OMNI/WinOMNI software with ISOTAC NDA quantitative assay capability. The company maintains a hybrid go-to-market model — direct sales for U.S. customers and a regional distributor network across Africa, Asia, Europe, North America, Oceania, and South America — with quote-based pricing and no public price list.

Revenue is generated through four streams: HPGe detector hardware sales, accessory sales (QuantiCart, Shield Cart), software licenses (ISOTAC NDA), and a smaller recurring component from extended 2-year warranty and service plans plus contract measurement services using the GeGI at customer sites. No revenue, funding, headcount-financial ratios, or ownership structure is publicly disclosed. Growth indicators include two product launches in 2022-2023 (Fulcrum-L and Fulcrum-40h) and a broadening distributor footprint, while offsetting signals include an empty careers page and stable 1-10 employee range, consistent with a focused niche specialty manufacturer rather than a venture-backed scaling business.

Name

Phds Company

Legal name

PHDS Co.

Website

https://phdsco.com

Company type

Private

Founded year

2004

Operating status

Operating

Headcount range

1–10 employees

Short description

PHDS Co. designs and manufactures compact High-Purity Germanium (HPGe) gamma-ray detectors for detecting, identifying, localizing, and quantifying radioactive materials. The privately held Knoxville, Tennessee firm primarily serves U.S. and allied government, military, national laboratory, and nuclear facility customers including DTRA, NNSA, IAEA, and Sellafield.

Ownership category

akta.pro rank

Product category

Radiation Detection Instrumentation

NAICS

Analytical Laboratory Instrument Manufacturing (334516), Other Measuring and Controlling Device Manufacturing (334519), Testing Laboratories and Services (54138)

SIC

Laboratory Analytical Instruments (3826), Industrial Instruments For Measurement, Display, And Control (3823), Services-Testing Laboratories (8734)

akta.pro primary industry

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

akta.pro secondary industries

Nonproliferation Technology & Detection (radiation portal monitors, RPMs, spectroscopy, forensics) (EUAKAJAG), Nuclear Materials Testing, Assay & Characterization Services (NDA/NDE, radiochemistry, materials analysis) (EUAKAIAL), Radiological Characterization, Surveys & Site Assessment (EUAKAFAC), Mass Spectrometry & Spectroscopy Instruments (HLAGAIAB)

Keywords

• HPGe gamma-ray detectors
• Radioisotope identification systems
• Portable radiation detection
• Gamma-ray imaging detectors
• Nuclear security instrumentation

Headquarters

HQ city

Knoxville

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

Revenue model

1. HPGe Detector Hardware Sales: Sale of proprietary HPGe gamma-ray detector systems including GeGI, Fulcrum, Fulcrum-40h, Fulcrum-L, LoPro, and NP Imager. Hardware is sold as complete systems with integrated software.
2. Accessories Sales: Sale of detector accessories including QuantiCart and Fulcrum-L Shield Cart.
3. Software Licenses: Sale of specialized software including ISOTAC NDA for quantitative isotope analysis.
4. Measurement Services: Contract measurement services at customer sites using GeGI detector. Includes on-site demonstrations, quantitative gamma-ray imaging assay, detailed measurement reports, and on-site training.
5. Extended Warranty and Service Plans: Additional 2-year Factory Warranty/Service plan including telephone/email technical support, factory repair service, priority service, remote GeGI checkups, and safety/security interrogation assistance.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels4 records

Core offering

PHDS Co. designs and manufactures compact High-Purity Germanium (HPGe) gamma-ray detection systems used to detect, identify, localize, and quantify radioactive materials in field, laboratory, and facility environments. The product line includes the GeGI gamma-ray imaging detector, the Fulcrum family of portable/lab detectors (Fulcrum, Fulcrum-40h, Fulcrum-L), the LoPro military-grade detector, and the NP Imager for radiochemistry monitoring, sold alongside accessories, ISOTAC quantitative software, and contract measurement services.

Product overview

PHDS Co. designs and manufactures the world's most advanced compact High-Purity Germanium (HPGe) gamma-ray detectors for identifying, locating, and quantifying radioactive materials. The product portfolio includes: the GeGI (Germanium Gamma Imager) for advanced gamma-ray imaging; the Fulcrum series including the standard Fulcrum (12% efficiency), Fulcrum-40h (40% efficiency), and Fulcrum-L (laboratory/radiopharma model); the NP Imager for real-time radiochemical separation process monitoring; and the LoPro military-grade detector. All products feature mechanically-cooled HPGe technology with onboard isotope identification software, wireless operation, and field-deployable form factors ranging from 8-15 lbs. The ecosystem includes ISOTAC NDA quantitative assay software, accessories like QuantiCart and Shield Cart, and contract measurement services.

Differentiator

Problem solved

Functional benefit

Products and services

• GeGI (Germanium Gamma Imager) Portable HPGe gamma-ray imaging detector for automatic isotope detection, identification, localization, and source activity quantification through Compton and pinhole imaging modes. Weighs 15 lbs with ~4 hour cool-down and hot-swappable batteries for field operation; intended for government, military, nuclear security, and nuclear facility customers.
• Fulcrum Compact and lightweight HPGe gamma-ray detector at 8 lbs with 12% relative efficiency at 1333 keV, 2-hour cool-down, onboard PHDS OMNI software for intuitive isotope identification, real-time exposure rate calculation, and wireless-capable remote operation. Targets field-deployable government, military, and nuclear security use cases.
• Fulcrum-40h 40% relative efficiency HPGe detector in a compact, lightweight package under 10 lbs combining proven large-detector performance with field-deployable convenience. Features PHDS OMNI software with ISOTAC activity calculator, 5-hour cool-down, and hot-swappable battery configuration providing up to 15 hours runtime.
• Fulcrum-L Compact laboratory HPGe detector at 8 lbs designed for radiopharma applications. Runs Windows-based WinOMNI software providing isotope identification, ISOTAC quantitative assay (NDA), minimum detectable activity (MDA) analysis, uncertainty analysis, and QA documentation. Compatible with LabLogic Laura software for GMP compliance. 12% relative efficiency with 2-hour cool-down.
• LoPro Lightweight, low-profile military-grade HPGe detector at 8 lbs with 12% relative efficiency, 3-hour cool-down, integrated GADRAS isotope identification, Android app with TAK tactical communications compatibility, wireless remote operation, and up to 15 hours of battery life using BB2590 mil-spec battery. Designed for U.S. military CBRNE operators.
• NP Imager Radiochemistry imager measuring dynamics of radiochemical separation processes in real time, monitoring locations and distributions of multiple isotopes over time. Features ZoomFactor for source magnification, wheeled imaging gantry for versatile positioning, and hot-swappable batteries; weighs 15 lbs. Targets nuclear physics and radiochemistry research environments.
• QuantiCart Accessory product for PHDS HPGe detector systems.
• Fulcrum-L Shield Cart Shielded cart accessory designed for the Fulcrum-L laboratory HPGe detector.
• ISOTAC NDA Quantitative assay software for isotope activity calculations, minimum detectable activity (MDA) analysis, and NDA documentation with flexible reporting outputs.
• Measurement Services Contract measurement services using GeGI at customer sites, providing high-resolution quantitative gamma-ray imaging assay with detailed reporting. Includes on-site demonstrations, quantitative gamma-ray imaging assay, detailed measurement reports, and on-site training.
• Extended Factory Warranty/Service Plan Additional 2-year Factory Warranty/Service plan covering telephone/email technical support, factory repair service, priority service, remote GeGI checkups, and safety/security interrogation assistance.

Quantifiable outcome

• GeGI selected by Sellafield after evaluating 9 other gamma imaging systems
• +3 more outcomes

Named customers10 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

AI capability5 records

Feature9 records

Partnerships

One partnership is on record.

• Regional Distributors NetworkcoreChannel Partner/ Reseller/ DistributorMultiple distributors around the world sell PHDS HPGe gamma-ray detection equipment. Distributors are available in Africa, Asia, Europe, North America, Oceania, and South America. PHDS handles direct sales for the United States while distributors cover international markets.

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Thermo Fisher Scientific: Thermo Fisher offers a broad portfolio of analytical instruments including laboratory HPGe detectors and gamma spectroscopy systems. Larger incumbent serving radiopharma and research labs where PHDS Fulcrum-L competes.
• Teledyne FLIR (FLIR Systems): Teledyne FLIR provides radiation detection products (identiFINDER series) and CBRNE solutions broadly to defense and homeland security markets. Overlaps with PHDS LoPro in military and security deployments, though FLIR's gamma detection portfolio does not include HPGe.
• Smiths Detection: Smiths Detection provides security screening and CBRNE detection systems, including radiation portals and identifiers, to government and critical infrastructure customers. Adjacent competitor in the broader CBRNE/radiological detection market.

Direct peers

• Kromek Group: Kromek designs and manufactures radiation detection products including cadmium zinc telluride (CZT) detectors and HPGe systems for nuclear security, medical, and CBRNE applications. Directly comparable in compact gamma-ray detection for security and safeguards markets.
• Berkeley Nucleonics: Berkeley Nucleonics manufactures radiation detection and identification instruments including portable radionuclide identifiers and HPGe systems. Competes with PHDS in portable gamma-ray detection for nuclear security and CBRNE segments.
• Mirion Technologies: Mirion (including the legacy Canberra brand) is a global leader in radiation detection, HPGe spectroscopy, and nuclear safeguards instrumentation. Competes directly with PHDS in lab and field HPGe for nuclear facilities, safeguards, and decommissioning.
• AMETEK (Ortec): AMETEK's Ortec division is the dominant incumbent in HPGe gamma-ray detectors, including the Detective-X portable HPGe explicitly benchmarked against PHDS Fulcrum-40h in the Sandia report. Most directly comparable competitor in portable and laboratory HPGe.
• Bubble Technology Industries (BTI): BTI develops radiation detection and identification products for defense, security, and nuclear safeguards markets, including portable neutron and gamma-ray detectors. Similar niche focus on field-deployable radiation detection for government customers.

Emerging players

• Radiation Detection Technologies: Radiation Detection Technologies (RadTec) develops portable radiation detection and imaging instruments for nuclear safeguards, medical, and security applications. Smaller emerging player with overlapping niche focus on portable gamma-ray imaging.
• H3D Inc. H3D commercializes cadmium zinc telluride (CZT) gamma-ray imaging spectrometers from the University of Michigan for nuclear safeguards, homeland security, and medical applications. Emerging competitor in portable gamma-ray imaging technology.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/phds-co.

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 Phds Company