Kahn

What Kahn does

Kahn is a privately held, family-owned American manufacturer of precision industrial instrumentation, organized as three operating corporations — Kahn Industries, Kahn Instruments, and Kahn & Company (Adsorptive Systems) — under the legal entity Kahn Licensing LLC, headquartered in Wethersfield, Connecticut. Founded in 1945 by Irving I. Kahn after emigrating from Germany, the company designs and builds three core product lines: hydraulic dynamometers for engine and turbine testing, adsorptive dehydration and purification systems for gases and liquids, and precision hygrometers for moisture measurement. The dynamometer line spans over 50 standard models across Series 100 through 555, plus custom units up to 75,000 kW (100,000 hp) and 100,000 rpm, featuring proprietary cavitation-free smooth disc power elements and squeeze film damper bearing supports. Adsorptive products include heaterless (MPS/MPSE/MPS/LDP) and heat-regenerated (MPL/MPO) desiccant dryers, military-qualified shipboard dehydrators (MIL-D-17847E, MIL-D-24693, ABS certified), liquid solvent dehydrators, and specialized gas purification systems for SF6 and natural gas. The hygrometer line covers ceramic sensor, aluminum oxide, and chilled-mirror optical instruments with dewpoint measurement from -120°C to +130°C, traceable to national and international standards.

Kahn sells its capital equipment primarily through direct enterprise sales supported by a worldwide network of local representatives, with pricing provided on a quote basis for custom-engineered solutions. Customers span aerospace and defense (U.S. Navy, Pratt & Whitney, Rolls-Royce, General Electric, Lockheed Martin, NASA, General Dynamics, Sandia National Laboratories), utilities and energy (Consolidated Edison, Duke Power, Tennessee Valley Authority, Transwestern Pipeline, Alaskan Pipeline), semiconductor manufacturing (Texas Instruments, Intel, IBM), chemicals (Cargill, Rohm & Haas, Amoco), and naval/marine applications (Royal Danish Navy, ARCO). Marketing channels include trade press coverage, technical webinars, application notes, and downloadable product documentation, with a current reported headcount of 1–10 employees. The business model is built on long product lifecycles (25–30+ years of installed service), high-reliability qualification for safety-critical and military applications, and aftermarket support of legacy equipment.

Name

Kahn

Legal name

Kahn Licensing LLC

Website

https://kahn.com

Company type

Private

Founded year

1945

Operating status

Operating

Headcount range

1–10 employees

Short description

Kahn is a family-owned American manufacturer (founded 1945) of hydraulic dynamometers for engine testing, adsorptive dehydrators and gas purification systems, and precision moisture measurement hygrometers, serving aerospace, defense, naval, utility, and industrial customers worldwide through direct sales and a global representative network.

Ownership category

akta.pro rank

Product category

Industrial Test and Measurement Equipment

NAICS

Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (334513), Other Measuring and Controlling Device Manufacturing (334519), Analytical Laboratory Instrument Manufacturing (334516)

SIC

Industrial Instruments For Measurement, Display, And Control (3823), Laboratory Analytical Instruments (3826)

akta.pro primary industry

Process Automation Instrumentation & Control (DCS, Valves, Actuators, Analyzers) (IMAHAHAM)

akta.pro secondary industries

Process Analytical Instrumentation (Gas analyzers, spectroscopy, pH/ORP, conductivity) (IMAGAFAE), Hydraulic Power Units & Systems (HPUs, Manifolds, Integrated Circuits) (IMAHAGAB)

Keywords

• Hydraulic dynamometers
• Adsorptive drying systems
• Moisture measurement instruments
• Engine testing equipment
• Industrial dehydration systems

Headquarters

HQ city

Wethersfield

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Distribution channels2 records

Marketing channels5 records

Core offering

Kahn designs and manufactures precision industrial instrumentation across three product lines: hydraulic dynamometers used to absorb and measure power output of engines, turbines, and electric motors; adsorptive dehydration and gas purification systems for compressed air, natural gas, and specialty gases; and hygrometers for moisture measurement in gases and liquids. All products are custom-engineered for aerospace, defense, petrochemical, utility, and process industry customers.

Product overview

The Kahn Companies manufacture precision technical instrumentation across three core product lines: hydraulic dynamometers for power testing, adsorptive dehydration and purification systems, and precision hygrometers for moisture measurement. The hydraulic dynamometer product line includes over 50 standard models (Series 100, 101, 102, 301, 302, 305, 400, 404, 405, 555) plus special purpose designs capable of absorbing up to 75,000 kW (100,000 hp) and operating at speeds up to 100,000 rpm. These are used for testing engines in aerospace, automotive, gas turbine, and diesel applications. The adsorptive systems product line encompasses compressed air/gas dehydrators (MPS, MPSE, MPL, MPO series), military/shipboard dehydrators (MIL-D-17847E and MIL-D-24693 qualified), liquid solvent dehydrators (LPC series), and specialized gas purification systems for natural gas, SF6, and industrial applications. The hygrometer product line features over 10 models including ceramic sensor hygrometers (Cermet II, Easidew family, HygroPort, Pura), optical chilled mirror hygrometers (Optidew, Optisure), and calibration equipment (Opti-Cal, HG-1). These products share a common thread of precision measurement and control technology, with the hygrometer line originally developed to measure moisture in Kahn's own adsorptive systems.

Differentiator

Problem solved

Functional benefit

Products and services

• Hydraulic Dynamometers (Series 100, 101, 102, 301, 302, 305, 400, 404, 405, 555 and special models) Hydraulic dynamometers using water as the power-absorption medium to measure and absorb power output of engines, turbines, and electric motors. Product range covers small engines up to 75,000 kW (100,000 hp) at speeds up to 100,000 rpm, with cavitation-free smooth disc models offering virtually unlimited service life. Used by aerospace, defense, automotive, and power generation customers for development, production, and post-overhaul performance testing.
• Engine Test Stands and Accessories
• Military / Shipboard Dehydrators (Models 008-079, 008-087, 005-300, 005-083 and Control Air Dryers) High-reliability dehydrators fully qualified to MIL-D-17847E (SHIPS), MIL-D-24693 (SHIPS), and MIL-S-901 with ABS approval. Models range from 75 to 200 scfm at pressures from 100 to 5,000 psig. Currently in service on U.S. Navy ship classes including DDG51 (Arleigh Burke), CG47, CVN74, SSN 766, LHD, AOE8, ARS-50, and Lewis & Clark (T-AKE), as well as ARCO commercial supertankers.
• Commercial Adsorptive Air/Gas Dryers (MPS, MPSE, MPS/LDP, MPL, MPO, MPL-4500ST series) Heaterless (pressure swing) and heat-regenerated desiccant-type air/gas dryers with capacities from 1 to 4,500 scfm and standard designs to 600 psig (higher available). The MPS/LDP series targets ultra-low dewpoint applications; MPL and MPO series provide heat-regenerated solutions; MPL-4500ST is steam heat regenerated.
• Natural Gas and Specialty Gas Purification Systems (MPC-50SP Desulfurizer, SF6 Purification System, Natural Gas/Flare Gas Dehydrators) Adsorptive systems for natural gas desulfurization, natural gas and flare gas dehydration (deployed on the Alaskan Pipeline), and sulfur hexafluoride (SF6) reprocessing (deployed at Sandia National Laboratories' particle accelerator). The SF6 system removes water, oil, metal fluorides, and other contaminants from SF6 used as an insulator in circuit breakers and transformers.
• LPC Liquid Dehydrator Liquid solvent dehydration system capable of reducing moisture content from 500 ppm down to 50 ppm or lower in polar solvents such as isopropyl alcohol and acetone.
• Ceramic Sensor Hygrometers (Cermet II, Easidew family, HygroPort, Pura, SF82) Precision ceramic substrate moisture sensors and hygrometers measuring dewpoints from -184°F to +140°F, with pressures to 5,000 PSIG and accuracy to ±1.8°F. Available in fixed, portable, intrinsically safe, and explosion-proof variants. The Pura transmitter measures trace moisture down to less than 1 ppbv for high-purity gas and semiconductor applications.
• Optical Chilled Mirror Hygrometers (Optidew, Optisure, S4000 family) Optical chilled mirror hygrometers providing fundamental dewpoint and RH measurement. Optidew covers -40°F to +248°F with ±0.27°F accuracy; Optisure covers -76°F to +104°F with ±0.18°F accuracy. Both feature Automatic Balance Compensation (ABC) and Dynamic Contamination Correction (DCC) for self-recalibration. Measurements are traceable to national and international standards.
• Humidity Calibration Equipment (Opti-Cal, HG-1) Opti-Cal is a stand-alone humidity calibrator with automated humidity/temperature profiling and built-in NIST-traceable optical reference hygrometer (10-90% RH, 10-50°C). HG-1 is a bench-mount humidity generator for manual calibration of aluminum oxide, ceramic, and optical probes (10-90% RH, -50°C to +50°C dewpoint).

Quantifiable outcome

• Power elements lasting over 27,000 operating hours with original components in LM2500 marine gas turbine testing
• +4 more outcomes

Named customers27 records

Segments7 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Vaisala: Global leader in humidity and moisture measurement instruments, including chilled-mirror and capacitive sensors for industrial and process applications. Direct competitor to Kahn Instruments across semiconductor, utility, and process-industry hygrometer deployments.
• Munters: Global supplier of desiccant and adsorption-based air and gas dehumidification systems for industrial and process applications. Comparable to Kahn & Company's adsorptive dryer and dehydrator product lines across industrial and marine markets.
• Michell Instruments (Process Sensing Technologies): Specialty manufacturer of dewpoint meters, hygrometers, and moisture analyzers for compressed air, natural gas, and process industries. Competes head-to-head with Kahn's Easidew, Pura, and Optisure hygrometer families.
• Power Test: Manufacturer of dynamometers and engine test systems, including water-brake models for diesel, gas, and heavy-industrial engines. Comparable to Kahn's medium- and low-speed hydraulic dynamometer product range.
• Magtrol: Specialty manufacturer of dynamometers, hysteresis brakes, and motor test equipment for small- to medium-sized engines, motors, and gearboxes. Overlaps directly with Kahn's smaller-Series hydraulic dynamometers and engine test stands.
• Taylor Dynamometer: U.S. manufacturer of engine dynamometers and test equipment for automotive, heavy-duty diesel, and industrial engines. Direct overlap with Kahn's Series 301/302/305 hydraulic dynamometers for diesel and gasoline load testing.
• ATSI (Air Technology Systems Inc.): Specialty manufacturer of desiccant air dryers and gas purification equipment for military, marine, and industrial markets. Competes with Kahn's military dehydrators qualified to MIL-D-17847E / MIL-D-24693.
• Froude (formerly Hofmann S, now part of Power Test / broader portfolio): Manufacturer of water-brake and eddy-current dynamometers historically used for engine and powertrain testing. Direct competitor to Kahn in hydraulic dynamometers for engine development, production, and overhaul testing.

Broad incumbents

• Zander Aufbereitungstechnik: European manufacturer of compressed-air and gas treatment systems including adsorption dryers and filtration. Adjacent competitor to Kahn's MPS series heaterless desiccant dryers in industrial and process-gas dehydration.
• AVL List GmbH: Largest independent developer of powertrain and engine test systems, including hydraulic and electric dynamometers. Comparable to Kahn's dynamometer line but serves a much broader automotive, commercial-vehicle, and industrial customer base globally.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries3 records

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 Kahn