CPN International

What CPN International does

CPN International, Inc. is a U.S.-based manufacturer of non-destructive testing (NDT) equipment, specializing in nuclear gauges used for density, moisture, and compaction measurement in the construction and raw materials industries. Founded in 1964 and headquartered in Concord, California, the company was acquired by InstroTek, Inc. in 2008 and now operates as a wholly-owned subsidiary within the InstroTek family. Its product portfolio centers on the MC Elite Series of nuclear gauges (MC1 Elite, MC3 Elite, 503 Elite Hydroprobe) and the MCM-2 Hydrotector, complemented by drop-in upgrade modules (Smart MC, Smart 503) that modernize older gauges in the installed base. The technology relies on radioactive source-based measurement rather than digital or AI-driven methods, with the MC3 Elite adding GPS tracking for site data correlation.

The company generates revenue primarily through hardware sales of gauges, parts, and accessories, with ancillary streams from operator training delivered through partner site nuketrain.com. Distribution is hybrid: direct sales are handled through seven U.S. regional offices (California, North Carolina, Nevada, Colorado, Texas, Michigan, Pennsylvania), while international reach is achieved through a network of 40+ distributors worldwide; a Shopify-based e-commerce storefront supplements both motions. Customer segments are organized vertically around construction contractors, engineering firms, and raw materials producers (mining, aggregates), with use cases spanning material quality verification, regulatory compliance, and irrigation management. Pricing is opaque (quote-based), consistent with capital-equipment sales to enterprise and mid-market buyers in a regulated category.

Name

CPN International

Legal name

CPN International, Inc

Website

https://cpn-intl.com

Company type

Private

Founded year

1964

Operating status

Operating

Short description

CPN International manufactures nuclear non-destructive testing gauges — including the MC1 Elite, MC3 Elite, and 503 Elite Hydroprobe — for density and moisture measurement, serving construction contractors and raw materials producers worldwide. It is a wholly-owned subsidiary of InstroTek, Inc., distributing through seven U.S. offices and 40+ international distributors.

Ownership category

akta.pro rank

Headquarters

HQ city

Concord

HQ country

United States

HQ region

North America

Offices8 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Nuclear Gauge Hardware Sales: Sale of nuclear testing equipment including MC1 Elite, MC3 Elite, 503 Elite Hydroprobe, and MCM-2 Hydrotector gauges. Primary revenue stream from manufacturing and selling non-destructive testing equipment to construction and raw materials industries.
2. Parts and Accessories: Sales of nuclear gauge parts and components through dedicated parts store (instrotek.com). Supports maintenance and repair of existing customer equipment.
3. Training Services: Nuclear gauge training services provided through nuketrain.com partner, offering certification and operational training for gauge operators.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels3 records

Core offering

CPN International manufactures and sells nuclear-based non-destructive testing equipment for the construction and raw materials industries. Its core product line consists of the MC Elite Series nuclear gauges (MC1 Elite, MC3 Elite, 503 Elite Hydroprobe) and the MCM-2 Hydrotector for moisture detection, complemented by Smart MC and Smart 503 drop-in upgrade modules that modernize older gauges. The company sells its products through seven U.S. offices, 40+ international distributors, and a Shopify-based e-commerce storefront.

Product overview

CPN International offers a portfolio of nuclear-based non-destructive testing equipment for the construction and raw materials industry. The product line consists of the MC Elite Series of nuclear gauges (MC1 Elite, MC3 Elite, 503 Elite Hydroprobe) as the core measurement devices, complemented by the MCM-2 Hydrotector for moisture detection. Upgrade modules include Smart MC and Smart 503, which serve as drop-in replacements for older gauge models to modernize existing equipment. CPN is now an integral part of the InstroTek family of companies, with the portfolio focused on material density, moisture, and compaction measurement solutions.

Differentiator

Problem solved

Functional benefit

Brands

• MC1 Elite™: Nuclear gauge described as the best value on the market for top-quality nuclear gauge measurement.
• MC3 Elite™
• 503 Elite Hydroprobe™
• MCM-2 Hydrotector™
• Smart MC™
• Smart 503™

Products and services

• MC1 Elite Nuclear Gauge Top-quality nuclear gauge positioned as the best value on the market for construction and raw materials testing, including density and moisture measurement of soils, asphalt, and aggregates. Targeted at construction contractors, engineering firms, and soil labs.
• MC3 Elite Nuclear Gauge Top-quality nuclear gauge available with optional GPS tracking capability for enhanced site location data and correlation during construction and materials testing measurements.
• 503 Elite Hydroprobe Nuclear gauge tool designed for accurate irrigation management and moisture measurement in agricultural and construction applications.
• MCM-2 Hydrotector Nuclear gauge-based system for detecting entrapped moisture in construction materials, providing a non-destructive method for moisture analysis in testing applications.
• Smart MC Upgrade System Drop-in upgrade module for older MC1 DRP and MC3 nuclear gauges that modernizes functionality without full equipment replacement.
• Smart 503 Upgrade System Drop-in upgrade module that improves the performance of CPN Hydroprobe gauges by providing modernized functionality without full replacement.
• Nuclear Gauge Parts and Accessories Replacement parts and components for CPN nuclear gauges, sold through a dedicated parts store to support maintenance and repair of customer equipment.
• Nuclear Gauge Training Services Certification and operational training services for nuclear gauge operators, delivered in partnership with nuketrain.com.

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• InstroTek, Inc.coreStrategic or Co-development Partner · 1 January 2008InstroTek, Inc. acquired CPN International in 2008. The two leading instrumentation development companies combined operations, with CPN becoming an integral part of the Instrotek family. Together they have expanded sales and services from seven U.S. locations and 40+ international distributors.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Regional players

• Controls Group: Italian/European manufacturer of compression testing machines and materials testing equipment for cement, concrete, and soils. Offers adjacent density/moisture testing products serving similar construction QC end users to CPN.
• Matest S.p.A. Italian-headquartered manufacturer of materials testing equipment with global distribution, including soil compaction and density testing devices. Comparable product scope to CPN but primary geographic concentration in Europe and adjacent markets.

Direct peers

• Humboldt Mfg. Co. Manufacturer and supplier of construction materials testing equipment, including nuclear and non-nuclear density gauges, serving geotechnical labs and contractors — a directly comparable product and customer overlap with CPN.
• Troxler Electronic Laboratories, Inc. The leading direct competitor to CPN in nuclear moisture/density gauges for construction and soils testing. Troxler offers the 3400-series and other nuclear gauges that overlap head-to-head with CPN's MC1 Elite and MC3 Elite, serving the same contractors and DOT/transportation customers.
• Gilson Company, Inc. Distributor and manufacturer of materials testing equipment for aggregates, soils, and concrete. Gilson sells nuclear gauges and complementary NDT equipment to the same construction QC and raw materials lab buyers as CPN.
• InstroTek, Inc. CPN's parent company and a leading non-nuclear NDT instrumentation developer for construction materials testing. InstroTek sells moisture, density, and asphalt content devices that overlap in customer base and use case, sharing distribution and service infrastructure with CPN.
• Forney, LP: Provider of construction materials testing equipment for concrete, cement, and aggregates. Forney's testing instrument portfolio overlaps with CPN's customer base in construction QC labs and field materials testing.

Emerging players

• TransTech Systems, Inc. Developer of non-nuclear soil and asphalt density measurement technologies (e.g., electrical density gauges). Targets the same construction QC use cases as CPN's nuclear gauges and represents a non-radioactive alternative path for end users.
• James Instruments, Inc. Manufacturer of non-destructive testing equipment for concrete and construction materials, including ultrasonic and rebound-hammer technologies. Comparable end customers to CPN but uses non-nuclear methods, representing a substitution threat.
• Pavement Testing Instruments (PTI): Supplier of pavement and materials testing instruments, including nuclear and non-nuclear density gauges for road construction. Overlaps with CPN's transportation infrastructure customer base.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

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 CPN International