Rohrer

What Rohrer does

Rohrer GmbH is a Munich-based precision measurement technology company that designs and manufactures specialized power amplifiers, isolation measurement amplifiers, and calibration systems for industrial and research applications. Its core product families — HERO®POWER linear-regulated 4-quadrant power amplifiers (achieving 0.001% stability at currents up to 180 A), the ARCUS® isolation measurement amplifier line (with 160 dB common-mode rejection and 1 µs overrange recovery), and supporting brands HERO®, HERO-LINK® and RASMUS® — are produced in single units or extremely small batches, customized to individual customer specifications. Applications include LV124/LV148 automotive Bordnetzsimulation, particle accelerator magnetic field compensation, large transformer calibration, and metrology laboratory use.

The firm operates a B2B direct field-sales model with global shipping, supplemented by a rental program that converts 80% of rental fees into purchase credit. Customers include TRW, Contiautomotive (automotive), Rheinmetall (defense), PTB (national metrology institute), and RWTH Aachen (academic research). Rohrer is DIN-member and TÜV-certified to ISO 9001:2015 (valid 2022–2025), and maintains visibility via participation in Electronica, Automotive Testing Expo, and Productronica trade shows. Revenue, customer concentration metrics, and headcount beyond the 1–10 band are not disclosed; no external funding has been raised.

In 2024, founder and Managing Director Helmut Rohrer (Dipl.-Ing. (FH)) announced the liquidation of the company due to age and his withdrawal from business life, and the firm is now formally designated "Rohrer GmbH i.L." (in Liquidation). The legal entity, intellectual property, and product brands remain registered, but no successor management, acquirer, or restructuring counterparty is identified in the source data. A separately incorporated US company named Rohrer (consumer packaging, unrelated) appointed Danny Teixeira as CEO in December 2025 and should not be conflated with the Munich measurement-technology entity analyzed here.

Name

Rohrer

Legal name

Rohrer GmbH i.L.

Website

https://rohrer-muenchen.de

Company type

Private

Founded year

1988

Operating status

Closed

Headcount range

1–10 employees

Short description

Rohrer GmbH is a Munich-based manufacturer of precision power amplifiers, isolation measurement amplifiers, and calibration systems, serving enterprise and research customers in automotive, aerospace, energy, and metrology with custom-built instruments. The founder-led firm entered liquidation in 2024.

Ownership category

akta.pro rank

Product category

Precision Test & Measurement Equipment

NAICS

Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Other Measuring and Controlling Device Manufacturing (334519), Electronic and Precision Equipment Repair and Maintenance (811210)

SIC

Instruments For Meas & Testing Of Electricity & Elec Signals (3825), Industrial Instruments For Measurement, Display, And Control (3823), Measuring & Controlling Devices, Nec (3829)

akta.pro industry

PRIMARYIMAGAFAH

Calibration Services & Standards (Calibration labs, reference standards, traceability services)

Industrials, Manufacturing & Construction/Electrical Equipment & Industrial Electronics/Sensors, Instrumentation & Measurement (Industrial sensing, metrology, test)

Keywords

• Precision measurement equipment
• Power amplifiers
• Isolation amplifiers
• Calibration systems
• Automotive board network simulation

Headquarters

HQ city

München

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Precision Measurement Equipment Sales: Sale of specialized power amplifiers, measuring systems, and calibration equipment to industrial customers. Products are manufactured in single units or small batches customized to specific customer requirements.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Rohrer manufactures precision measurement devices and systems in Munich, specializing in linear regulated 4-quadrant power amplifiers (HERO®POWER brand), isolation measuring amplifiers (ARCUS® brand), and high-stability calibration systems. Products are produced in single units or very small batches, custom-tailored to individual customer requirements, serving automotive, aerospace, energy, defense, and research applications with industry-leading stability of 0.001% at currents up to 180A.

Product overview

Rohrer is a precision measurement and testing technology company offering a portfolio of specialized power amplifiers, isolation measurement amplifiers, and calibration systems. The core products include HERO® series amplifiers (encompassing DMS measurement amplifiers, isolation measurement amplifiers, and power amplifiers in generator or load operation) and the HERO®POWER line of precision power amplifiers. Supporting products include the ARCUS® isolation measurement amplifier series (T303-B, 937-B) and the PA series of power amplifiers covering various specifications for different applications. The company also offers the HERO-LINK® and RASMUS® brands. Products serve automotive testing, aerospace, energy technology, calibration laboratories, and component testing with 4-quadrant power amplifiers capable of achieving stabilities of 0.001% at currents up to 180A.

Differentiator

Problem solved

Functional benefit

Brands

• HERO®: Brand for DMS measurement amplifiers, isolation measurement amplifiers, and power amplifiers in generator or load operation.
• HERO®POWER
• ARCUS®
• HERO-LINK®
• RASMUS®

Products and services

• HERO®POWER Precision Power Amplifiers Linear regulated 4-quadrant power amplifiers and power supplies for industrial and research customers, achieving stabilities of 0.001% at currents up to 180A in voltage and current modes; used for automotive Bordnetzsimulation, particle accelerator magnetic field compensation, and transformer calibration.
• ARCUS® T303-B Isolation Measurement Amplifier High-precision isolation measurement amplifier with frequency range DC-300 kHz, insulation test voltage ±10 kV, common-mode rejection 160 dB/50 Hz, 18 measurement ranges from ±50 mV to ±5 kV, 1 µs overrange recovery, and 1 µs signal rise time; designed for safe high-voltage measurements in industrial and research applications.
• PA Series Power Amplifiers Comprehensive range of power amplifiers spanning automotive LV124/LV148 board network simulation, laboratory, calibration, component testing, energy technology, and single/multi-phase network simulation, with various power ranges and frequency responses.
• Calibration Services Calibration services for power electronics equipment including shunt calibration with 500A resolution, AC and DC return measurement for current transformers, and high-voltage generation up to approximately 100 kV; targets industrial customers and calibration laboratories.
• Rental Program Equipment rental program for evaluation purposes; 80% of paid rental fees are credited toward purchase price, allowing customers to validate equipment fit before committing to ownership.
• Project Partnership Services Collaborative development services for measurement and test systems spanning signal generation to analysis, including board network systems, single- and multi-phase network simulation, and calibration of power electronics.

Quantifiable outcome

• Stability of 0.001% at currents up to 180A
• +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

Feature4 records

Partnerships

One partnership is on record.

• Omicron LabminorStrategic or Co-development PartnerRohrer GmbH presented HERO®POWER precision power amplifiers at the Power Analysis & Design Symposium hosted by Omicron Lab, demonstrating interoperability with Omicron Lab's Bode 100 measurement equipment for documenting amplifier frequency and phase behavior.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Emerging players

• Chroma ATE: Taiwanese test and measurement company producing precision power sources, electronic loads, and automotive test solutions for EV and power electronics. Competes with Rohrer's LV124/LV148 Bordnetz simulation amplifiers on price and integrated solution packaging.

Broad incumbents

• Kistler Group: Swiss-headquartered, broad measurement technology company spanning sensors, charge amplifiers, and precision instrumentation across automotive, aerospace, and industrial test. Comparable through its precision amplifier portfolio and customer overlap (automotive test labs, research institutions).
• National Instruments (NI): Modular test and measurement platform offering PXI-based data acquisition and HIL systems that integrate with power electronics. Indirectly competitive to Rohrer's amplifiers as alternative architecture for automotive and energy test stands.
• Keysight Technologies: Global test and measurement incumbent offering power analyzers, source measurement units, and test software. Adjacent rather than direct competitor for Rohrer's amplification products, but customers overlap across automotive powertrain and energy test labs.
• AMETEK Programmable Power: Division of AMETEK producing programmable AC/DC power sources and power amplifiers. Comparable on hardware overlap (programmable power for test), customer overlap (automotive, aerospace, energy), but operates as a broad multi-brand incumbent rather than a niche specialist.
• Rohde & Schwarz: German test and measurement major with broad oscilloscope, EMC, and power analyzer portfolios. Comparable through its EMC/aerospace test overlap and shared Munich-area engineering ecosystem, though it does not specialize in Rohrer's 4-quadrant analog power amplifier niche.

Direct peers

• Pacific Power Source: US-based manufacturer of precision programmable AC and DC power sources and power amplifiers for test and measurement. Comparable to Rohrer's precision 4-quadrant amplifiers in target application (Bordnetz simulation, avionics, MIL-STD testing) and customer base of test labs and OEMs.
• Spitzenberger & Spies: German manufacturer of precision linear power amplifiers and test systems for industrial and research applications. Closely comparable to Rohrer's HERO®POWER 4-quadrant amplifier line, addressing automotive EMC and component testing, and historically serving similar German engineering customers.
• Heinzinger electronic: German manufacturer of high-voltage and high-precision DC power supplies and precision amplifiers. Comparable to Rohrer on the high-voltage / calibration side (transformer calibration, AC/DC return measurement, HV generation up to 100kV).
• Behlman Electronics: US manufacturer of AC and DC power sources, frequency converters, and precision power amplifiers for industrial, military, and aerospace test. Direct competitor to Rohrer's HERO®POWER platform, particularly for high-stability lab-grade power amplification.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights5 records

Customer concentration

• LinkedInlinkedin.com/company/rohrer-gmbh

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Rohrer