What Microflown Technologies does

Microflown Technologies is a Dutch privately held sensor and measurement-systems company founded in 1998 and headquartered in Arnhem, the Netherlands. It develops and markets MEMS-based acoustic particle velocity sensors — the company's core proprietary technology, originally introduced as the world's first particle velocity sensor — together with sound intensity probes (PU and USP series), sound localization systems (Scan&Paint 2D/3D, Near-Field Acoustic Camera, Acoustic Shape), portable measurement devices (Voyager), and end-of-line acoustic quality-control software (AQCURA). All hardware integrates with the VELO software platform, a modular workflow environment that the company updates annually (current release VELO 2026 / V6.5.0.0) and that bundles data acquisition, analysis, and reporting for sound intensity, sound power ranking, panel noise contribution, and material testing applications.

The company's revenue model combines one-time hardware sales (sensors, probes, and complete measurement systems with 2-year warranty), subscription-based software (VELO platform with annual billing, a free VELO Analyzer tier, and 30-day professional-module trials), and project-based engineering services (calibration, repair, acoustic engineering consulting, and software/support contracts). It sells globally through direct sales from its Arnhem headquarters and through a network of local sales representatives, reaching enterprise customers in automotive NVH, aerospace, appliances and consumer electronics, heavy industry and machinery, building acoustics, and education/research.

Microflown serves a concentrated set of named enterprise customers including Hyundai (EV interior acoustics), Lontra (compressor noise), HT Acoustics (ANC headphone R&D), and various automotive manufacturers for end-of-line testing. The company is co-founded by Alex Koers and Hans Elias De Bree, both still listed as directors, and has operated as an independent private entity for 27 years without disclosed institutional investors, M&A activity, or public funding rounds. Its distribution footprint and technical depth position it as a niche specialty-equipment vendor rather than a high-velocity venture-scale business.

Name

Microflown Technologies

Legal name

Microflown Technologies

Website

https://microflown.com

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

11–50 employees

Short description

Microflown Technologies, founded in 1998 in Arnhem, the Netherlands, develops proprietary MEMS acoustic particle velocity sensors, sound intensity probes, sound localization systems, and the VELO software platform. It sells measurement hardware, software, and engineering services to automotive, aerospace, consumer electronics, heavy industry, and research customers worldwide.

Ownership category

akta.pro rank

Product category

Acoustic Measurement Equipment

NAICS

Other Measuring and Controlling Device Manufacturing (334519), Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515)

SIC

Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Microphones & Acoustic MEMS (MEMS Mics/Ultrasonic Transducers) (HDAHALAH)

akta.pro secondary industries

Instrumentation, Sensors & Calibration (EDAOAHAH), Speech Enhancement & Noise Suppression (AEC/NR) (HDAAAFAG)

Keywords

• Acoustic particle velocity sensors
• Sound intensity probes
• Sound localization systems
• Acoustic measurement equipment
• Noise control testing

Headquarters

HQ city

Arnhem

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Acoustic Sensors and Probes: Sale of hardware products including particle velocity sensors, sound intensity probes, and related sensing equipment. Products are sold directly to customers with 2-year warranty.
2. Measurement Systems and Software: Sale of complete measurement systems including Scan&Paint systems, Voyager portable devices, VELO software platform, and related accessories.
3. Engineering Services and Support: Acoustic engineering services, calibration service, repair services, and software support contracts offered to customers.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels7 records

Core offering

Microflown Technologies develops and markets MEMS-based acoustic particle velocity sensors, PU sound intensity probes, sound localization systems (Scan&Paint 2D/3D, Acoustic Shape, Near-Field Acoustic Camera), portable measurement devices (Voyager), and the VELO software platform for acoustic testing, sound power quantification, noise control, and end-of-line quality control. Products are sold directly to industrial and research customers worldwide, supported by acoustic engineering, calibration, and repair services.

Product overview

Microflown Technologies is a sensor and measurement systems company that develops and markets innovative acoustic testing equipment based on its proprietary MEMS acoustic particle velocity sensor technology. The product portfolio centers on the VELO software platform, a unified modular environment that integrates multiple acoustic test systems including sound localization tools (Scan&Paint 2D/3D, Near-Field Acoustic Camera, Acoustic Shape), sound intensity probes (PU and USP series), and portable measurement devices (Voyager). The VELO platform supports workflows from data acquisition through analysis and reporting. Complementary products include volume velocity sources for acoustic excitation, robotic and handheld probe arrays, preamplifiers and data acquisition hardware, and specialized software for sound power ranking, panel noise contribution analysis, and end-of-line quality control (AQCURA). The company serves automotive, aerospace, appliances, heavy industry, building acoustics, and education/research markets.

Differentiator

Problem solved

Functional benefit

Products and services

• VELO Software Platform Microflown's unified modular software platform for acoustic testing, integrating particle-velocity and sound-intensity measurement workflows from setup through analysis and reporting across multiple Microflown test systems.
• Voyager Portable Measurement System Mobile multi-channel data acquisition system and acoustic analyzer for portable in-situ acoustic measurements, used with PU Voyager probes.
• Scan&Paint 2D Sound Localization System Tool for fast, accurate 2D visualization of stationary sound fields with high spatial resolution across a 20 Hz–14 kHz acoustic bandwidth.
• Scan&Paint 3D Sound Localization System Advanced 3D sound localization and visualization system enabling full 3D characterization of stationary sound fields with spatial resolution down to 3 mm and automatic 3D tracking via infrared stereo camera.
• Acoustic Shape 3D Visualization System Advanced 3D acoustic visualization system with real-time tracking, multi-capture synchronization, and noise visualization for investigating transient and non-stationary sound sources.
• Near-Field Acoustic Camera High-resolution acoustic imaging tool using a network of PU sound intensity probes to identify and measure transient sound sources across the full audible frequency range.
• In-Situ Sound Absorption Measurement System Handheld impedance gun system for fast, non-destructive measurement of acoustic absorption, reflection, and impedance over 300 Hz–10 kHz on flat or curved surfaces.
• U Regular Particle Velocity Sensor 1D acoustic particle velocity sensor based on proprietary MEMS technology for direct measurement of particle velocity in sound fields.
• PU Regular Sound Intensity Probe 1D sound intensity probe combining a microphone (P) and Microflown particle velocity sensor (U) for direct measurement of sound pressure, particle velocity, and sound intensity.
• PU Regular GEN2 Sound Intensity Probe Second-generation 1D sound intensity probe with enhanced performance for particle velocity and sound pressure measurements.
• PU Voyager Sound Intensity Probe 1D sound intensity probe optimized for use with Voyager portable measurement systems for field acoustic measurements.
• PU Match Sound Intensity Probe 1D sound intensity probe with matched microphone and particle velocity sensor for precise acoustic measurements.
• PU Mini Sound Intensity Probe Compact 1D sound intensity probe for measurements in confined spaces while maintaining measurement accuracy.
• USP Regular 3D Acoustic Vector Sensor 3D acoustic vector sensor with three orthogonally placed Microflown particle velocity sensors and a sound pressure microphone for full 3D sound intensity measurement.
• Low Frequency Volume Velocity Source Volume velocity source operating from 30 Hz to 500 Hz for low-frequency acoustic excitation and transfer path analysis.
• Mid-High Frequency Volume Velocity Source Volume velocity source operating from 300 Hz to 12 kHz for mid to high frequency acoustic excitation.
• Robotic Acoustic Scanner (MURPHII) Microflown Universal Robot for Precision Handling and Intensity Imaging — automated robotic scanner for acoustic measurements.
• Microflown Sound Calibrator Acoustic calibrator bringing field calibration capabilities to particle velocity sensors.
• Data Acquisition Scout V2 4-channel USB data acquisition system for acoustic measurements.
• MECALC// DECAQ Data Acquisition System Integrated data acquisition solution for larger measurement landscapes and complex testing setups.
• Hand Held Array Modular PU probe array solution for handheld acoustic measurements.
• Surface Array Flexible and scalable PU probe array solution for surface acoustic measurements.
• Flexible Array Customizable and flexible PU mini probe array for specialized measurement configurations.
• AQCURA End-of-Line Quality Control Software End-of-line acoustic quality control software that combines acoustics and machine learning to objectively identify manufacturing defects and determine product quality.
• Scan&Listen Software Software for making particle velocity audible to human ears, enabling acoustic analysis through audio playback.
• Sound Power Ranking Software In-situ noise quantification and ranking solution using PU probes for identifying dominant sound sources.
• Panel Noise Contribution Analysis Software PU-based panel noise contribution analysis tool for identifying radiating surface contributions to overall noise.
• Sound Transmission Loss Software Sound transmission loss measurements using PU probes for characterizing material acoustic barrier performance.
• Acoustic Engineering Services Acoustic engineering services offered by Microflown's team to support customer projects, including troubleshooting, benchmarking, and noise control analysis.
• Calibration Service Calibration service for Microflown acoustic sensors and probes to maintain measurement accuracy.
• Repair Service Repair services for Microflown acoustic measurement equipment.
• Software & Support Contracts Annual software and support contracts for ongoing maintenance and technical support of Microflown hardware and software products.

Quantifiable outcome

• Spatial resolution down to 3mm for precise sound source identification
• +3 more outcomes

Named customers4 records

Segments7 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature6 records

Partnerships

One partnership is on record.

• HT AcousticsminorStrategic or Co-development PartnerCooperation on sound leakage investigation of ANC headphones. HT Acoustics worked with Microflown to use particle velocity sensors for detecting microphone positioning and optimizing active noise cancellation performance. Study was presented at Inter-noise 2020.

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Brüel & Kjær (HBK): HBK is the largest dedicated sound and vibration measurement company globally, offering microphones, sound intensity probes, and acoustic cameras. It is a broad incumbent whose sound intensity portfolio most directly competes with Microflown's PU probes in NVH and acoustics labs.
• National Instruments (NI): NI provides modular data acquisition and instrumentation platforms commonly used in acoustic and vibration test setups, competing with Microflown's hardware-software ecosystem at the broader test & measurement layer.
• Siemens Digital Industries (Simcenter Test): Siemens' Simcenter test-and-simulation portfolio (formerly LMS) addresses NVH, acoustic, and vibration testing for automotive and aerospace, representing a broad incumbent alternative to Microflown in enterprise CAE/NVH workflows.

Direct peers

• HEAD acoustics: HEAD acoustics specializes in sound and vibration analysis for telecom, automotive, and audio quality, and competes with Microflown in NVH testing, ANC headphone evaluation, and acoustic quality measurement.
• Polytec: Polytec supplies laser vibrometry and acoustic measurement systems for NVH, structural dynamics, and product development, directly overlapping with Microflown's vibro-acoustic testing and automotive NVH segment.
• Norsonic (ACOEM): Norsonic supplies sound level meters, sound intensity probes, and building acoustics instrumentation, overlapping with Microflown's sound intensity, building acoustics, and material testing offerings.
• gfai tech: gfai tech builds acoustic camera systems (SoundCam) for sound source localization, directly competing with Microflown's Scan&Paint 2D/3D and near-field acoustic camera products.
• G.R.A.S. Sound & Vibration: G.R.A.S. manufactures measurement microphones and acoustic sensors widely used in sound intensity and NVH applications, competing with Microflown's particle velocity and PU probe products in laboratory and field acoustic testing.

Emerging players

• SoundCam (CAE Software & Systems): SoundCam offers portable acoustic imaging cameras targeted at industrial troubleshooting and product development — a more focused emerging alternative to Microflown's Scan&Paint and near-field camera systems.
• Microtech Gefell: Microtech Gefell manufactures high-precision measurement microphones used in sound intensity and acoustic research applications, providing overlapping technology in acoustic measurement hardware for research and industrial users.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xtwitter.com/Microflown
• YouTubeyoutube.com/user/Microflown
• LinkedInlinkedin.com/company/microflown-technologies

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Microflown Technologies