Rosenberger Hochfrequenztechnik GmbH

What Rosenberger Hochfrequenztechnik GmbH does

Rosenberger Hochfrequenztechnik GmbH & Co. KG is a privately held, family-controlled German manufacturer of high-frequency, fiber optic, and high-voltage connectivity solutions, headquartered in Fridolfing, Bavaria, and operating since 1958. Its product portfolio spans precision coaxial and RF connectors, fiber-optic interconnect, high-voltage cabling and harnesses, PIM (passive intermodulation) measurement instruments, and emerging offerings such as HySpeedVision machine-vision interconnects, RoProxCon contactless proximity connectivity, and Smart Engineering autonomous device tracking. The company holds mission-critical qualifications including DIN EN 9100 (aerospace), ESCC (European Space Components Coordination), and MIL-PRF-39012 (US military), which gate entry into aerospace, defense, and semiconductor test supply chains.

The company serves a diversified B2B customer base across seven or more end-markets: automotive (including e-mobility HV/LV/LEV platforms), mobile communications and 5G infrastructure, semiconductor test, industrial automation, medical technology, aerospace and defense, hyperscale data centers (via the EBO MSA optical-interconnect consortium), and telematics. Revenue is generated through sale of engineered components, sub-assemblies, and test instrumentation to OEM, Tier-1 supplier, and network-operator customers under typical industrial component procurement contracts; pricing reflects the specialized, qualified nature of the products rather than commodity dynamics. Distribution is conducted through owned subsidiaries across Europe, Asia Pacific, North America, South America, and Tunisia, supported by a global workforce of 15,500+ employees, of which approximately 3,500 are based at the Fridolfing headquarters.

The business model is that of a long-tenured specialty industrial supplier: co-engineering with customers to win design-in specifications, navigating multi-year qualification cycles in regulated end-markets, and then harvesting revenue across the resulting product lifecycles. Strategic posture has shifted notably in 2024-2026 toward AI data-center optical interconnect, machine-vision interconnects, and IoT-enabled smart connector products, alongside continued deepening of e-mobility and 5G test-instrumentation lines.

Name

Rosenberger Hochfrequenztechnik GmbH

Legal name

Rosenberger Hochfrequenztechnik GmbH & Co. KG

Website

https://rosenberger.de

Company type

Private

Founded year

1958

Operating status

Operating

Headcount range

51–100 employees

Short description

Rosenberger Hochfrequenztechnik GmbH is a German, family-owned manufacturer of high-frequency, fiber-optic, and high-voltage connectivity solutions serving automotive, 5G/telecom, semiconductor test, industrial, medical, aerospace/defense, and hyperscale data-center customers worldwide.

Ownership category

akta.pro rank

Product category

Electronic Connectors and Connectivity Solutions

NAICS

Other Communications Equipment Manufacturing (334290), Fiber Optic Cable Manufacturing (335921), Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515)

SIC

Electronic Connectors (3678), Instruments For Meas & Testing Of Electricity & Elec Signals (3825)

akta.pro primary industry

RF & Microwave Connectors and Coaxial Assemblies (HDAHAOAD)

akta.pro secondary industries

Coaxial, RF & Specialty Signal Cable (IMADAMAE), Data, Communications & Fiber Optic Cable (IMADAMAD), Connectors, Jacks & Couplers (RJ45/LC/SC/MPO/MTP) (HDAFALAD)

Keywords

• RF coaxial connectors
• Fiber optic connectivity
• High-voltage connectors
• Cable assemblies
• RF test equipment

Headquarters

HQ city

Fridolfing

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware Products - Connectors and Cable Assemblies: Designs, manufactures and sells a comprehensive portfolio of standardized and customized connectivity products including RF connectors, fiber optic connectors, power connectors, and cable assemblies. Revenue is generated through product sales to enterprise customers across multiple industries.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Rosenberger designs, manufactures, and sells a comprehensive portfolio of standardized and customized connectivity solutions, including RF coaxial, fiber optic, differential data, board-to-board, board-to-cable, power, and circular connectors; RF, fiber optic, and power cable assemblies; and high-precision RF test and measurement products such as PIM analyzers and metrology. Products are engineered to reliably transmit data, signals, and power across demanding applications in automotive, mobile communications, semiconductor test, industrial, medical, aerospace and defense, hyperscale data centers, and telematics.

Product overview

Rosenberger Hochfrequenztechnik GmbH is a manufacturer of connectivity solutions providing standardized and customized products for data, signal, and power transmission. The company operates a platform-plus-modules architecture with three core product categories: (1) Connectors & Adaptors covering RF coaxial, differential data, precision, magnetic, board-to-board, board-to-cable, fiber optic, power, and circular connectors; (2) Cable Assemblies including RF, power, and fiber optic variants plus test cables; and (3) Test Equipment encompassing PIM analyzers, metrology, and measurement components. Additional offerings include Site Solutions for mobile network infrastructure, Tools & Accessories, and Customized Solutions services. The portfolio spans high-frequency, fiber optic, and high-voltage technologies serving markets including automotive, mobile communication, semiconductor test, industrial automation, medical, aerospace/defense, hyperscale data centers, and telematics.

Differentiator

Problem solved

Functional benefit

Brands

• RoProxCon: High-speed contactless data transmission technology and evaluation boards
• HySpeedVision (HYV)
• PIM Rack Analyzer

Products and services

• Connectors & Adaptors Comprehensive portfolio of connectors engineered to reliably transmit data and power across numerous application requirements, including RF coaxial, differential data, precision, magnetic, board-to-board, board-to-cable, fiber optic, power, and circular connector families for automotive, mobile communications, semiconductor test, medical, industrial, aerospace and defense customers.
• Cable Assemblies Fit-for-purpose standard and custom cable assemblies for signal, data, and power transmission, including RF, power, fiber optic, and RF and microwave test cable variants for enterprise and industrial buyers.
• Test Equipment High-precision RF test and measurement products for R&D, test labs, and quality assurance departments, encompassing PIM analyzers, metrology, measurement components, and test equipment for automotive connectors.
• Tools & Accessories Specialist tools and accessories including crimping tools, torque wrenches, extraction tools, and handling equipment used in connector and cable assembly installation.
• Site Solutions End-to-end connectivity products and solutions for mobile network site infrastructure, including coax feeders, jumpers, connectors, FTTA/PTTA, connectivity boxes, concealment solutions, in-building solutions, and transmission line devices for 5G site rollouts.
• Customized Solutions Bespoke connectivity engineering service that delivers customized, cost-optimized connectivity solutions from initial concept through to high-volume production for enterprise customers with specific application requirements.
• RoProxCon Contactless data transmission technology enabling high-speed wireless connectivity for industrial and data transmission applications.
• HySpeedVision (HYV) Hybrid connector solution combining power and high-speed data in a single cable for machine vision systems, delivering low-latency, simple-integration connectivity in industrial environments.
• Smart Engineering for Customized Autonomous Tracking Solutions End-to-end Smart Engineering service for customized autonomous tracking IoT products, delivering holistic solutions from conception through development and integration based on specific customer requirements in telematics and industrial IoT.
• TINO Tracking Unit Asset tracking hardware for industrial telematics applications, supporting autonomous tracking of industrial assets.
• PIM Rack Analyzer (New Generation) New-generation passive intermodulation (PIM) rack analyzer for fast, precise, and reproducible RF measurements across a wide frequency range, with modular design, plug-and-play filters, DTP, and optional VNA for lab and production environments.

Segments8 records

Ideal customer profiles8 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

One partnership is on record.

• EBO MSA (Expanded Beam Optical)coreStrategic or Co-development Partner · 9 June 2026Rosenberger joined the EBO MSA (Expanded Beam Optical) to advance open optical connectivity standards for AI data centers. This strategic participation underscores the company's global investments in Expanded Beam Optical technology and commitment to scalable AI infrastructure.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Molex: Molex (a Koch Industries subsidiary) manufactures electronic interconnect solutions including RF, fiber optic, and high-speed data connectors serving automotive, telecom, and industrial markets — directly comparable to Rosenberger's portfolio.
• TE Connectivity: Global leader in connectivity and sensor solutions for automotive, industrial, aerospace, defense, and communications infrastructure — a direct competitor across Rosenberger's full connector and cable assembly portfolio.
• Smiths Interconnect: Provider of high-reliability interconnect solutions for aerospace, defense, medical, and industrial markets — comparable to Rosenberger's aerospace/defense and medical connector offerings, especially in qualified MIL-spec and ESCC components.
• HUBER+SUHNER: Swiss manufacturer of RF, fiber optic, and low-frequency connectivity solutions for communications, industrial, and transportation markets — the closest direct peer to Rosenberger in RF coaxial and fiber optic assemblies, particularly in the European market.
• Radiall: French manufacturer of interconnect solutions specializing in RF coaxial connectors, microwave components, and fiber optic connectors for aerospace, defense, telecommunications, and industrial applications — comparable to Rosenberger in precision RF.
• Amphenol: One of the largest global manufacturers of electronic connectors, cable assemblies, and interconnect systems serving automotive, mobile communications, aerospace, and industrial markets — directly overlapping Rosenberger's core product portfolio and end markets.
• Japan Aviation Electronics Industry (JAE): Japanese manufacturer of connectors, user interface solutions, and aerospace electronics serving automotive, mobile, and industrial markets — comparable to Rosenberger in board-to-board and automotive connector segments.
• Hirose Electric: Japanese manufacturer of precision electronic connectors including RF, coaxial, fiber optic, and board-to-board connectors for telecom, automotive, and industrial markets — comparable to Rosenberger's high-precision connector offerings.
• Carlisle Interconnect Technologies: US-based manufacturer of specialty wire and cable, RF connectors, and interconnect assemblies primarily for aerospace, defense, and test & measurement markets — overlapping Rosenberger's aerospace/defense and test cable segments.

Broad incumbents

• CommScope: Large incumbent in communications infrastructure including fiber optic cabling and connectivity for wireless networks — overlaps with Rosenberger's Site Solutions and fiber optic assemblies for mobile communications and hyperscale data centers, but with a much broader portfolio.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/user/RosenbergerTV
• Facebookfacebook.com/Rosenberger.HFT
• LinkedInlinkedin.com/company/rosenberger-hochfrequenztechnik-gmbh
• Instagraminstagram.com/rosenberger.group

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries19 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 Rosenberger Hochfrequenztechnik GmbH