We offer

Recording, Mixing & Mastering


A pile of sawed wood logs


Acoustic design for wooden structures

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Explore behaviour of sound 


Who we are

We’re a group of engineers, designers, and technical specialists delivering award-winning work since 1956. We create sound environments and solve vibration issues at all scales and in all sectors.

Our vision is to tune the world. And it starts with designing an environment in which unwanted sounds are mitigated and room is created for other sounds to be heard. We approach this task with both heart and mind.

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We are Efterklang

Our Services Our people


Award-winning design

We are dedicated to providing our clients with high-value-design solutions. Our commitments to excellence is reinforced by the recognition of awards, serving as both a quality assurance measure, and proof of our dedication to upholding the highest standards in the projects we undertake.

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Our Services


We provide support in acoustic consulting, planning, and measurement, delivering services encompassing building and room acoustics.


We offer assessments, measurements, and action plans for reducing noise exposure from a wide spectrum of sources, such as traffic, industries, sports facilities, and quarries.

Sound design

We have extensive experience in developing successful sound architecture, sound design concepts, and audio branding for physical spaces and products.


Our services include advice on vibration control and ground-borne noise from rail, road and construction. We also possess expertise in structural dynamics and the response of humans, buildings, and products to vibrations.


We offer a state-of-the-art studios and services for sound recording, mixing, and audio production. We help clients with voice talent casting, music production, and film sound design, just to name a few of our areas of expertise.