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Leading in acoustic consultancy since 1969

The largest
independent acoustic
consultancy in the UK

The largest
independent acoustic
consultancy in the UK
The largest
independent acoustic
consultancy in the UK
Explore our latest projects

At the forefront
of building acoustics
since 1969

We are recognised experts in the acoustic design of studios, auditoria and performance spaces. Our unique history and depth of experience is combined with an extensive project portfolio covering a wide range of building sectors.

Working on projects worldwide

We pride ourselves in giving the best advice to our clients in a way that is practical and clear and attract bright, talented and dedicated engineers who are passionate about acoustic design.

From the redevelopment of listed historical buildings to the latest innovative techniques in new build construction, our team regularly works with leading architects, engineers, developers and contractors on projects worldwide.

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Quietly sustainable

True sustainability prioritises human wellbeing. We integrate acoustic excellence with environmental rigor, pioneering passive design and achieving BREEAM ‘Outstanding’ benchmarks to protect the world of tomorrow.

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Latest insights

Stay at the forefront of sound where technical precision meets architectural vision.

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James Atha is appointed company director
02 April 2026
James Atha is appointed company director
Please join us in congratulating James Atha who became a director on 1 April 2026. We welcome James to the board.
Promotion news
03 November 2025
Promotion news
Ruthu completed a BSc (Hons) Physics and Music at the University of Edinburgh before joining Sandy Brown as an Engineer in 2021.
Contract signed for new £162 million ‘Hall for All’
24 October 2025
Contract signed for new £162 million ‘Hall for All’
We are delighted to announce that the contract to deliver the new Dunard Centre concert hall has been signed with Balfour Beatty.
Promotion news
19 September 2025
Promotion news
Following a successful year-out student placement with Sandy Brown in 2018, Mollie graduated with a First-Class Honours in Acoustical and Audio Engineering…
Sandy Brown Wins 2025 ANC Performance Spaces Award for The Halls, Wolverhampton
26 June 2025
Sandy Brown Wins 2025 ANC Performance Spaces Award for The Halls, Wolverhampton
The transformative refurbishment of The Halls is an exemplary case of how intelligent acoustic design can restore and reinvigorate a beloved civic…
Promotions news
06 May 2025
Promotions news
Following a successful year-out student placement, Ben returned in 2014 graduating with a First-Class Honours degree in Audio Acoustics from the University…
Structural Response Measurements
04 April 2025
Structural Response Measurements
Our services can help optimise the design process and the performance ensuring high standards, efficient structural design and more sustainable solutions.
The colour of acoustics, ‘Black Art’ or grey science
31 October 2024
The colour of acoustics, ‘Black Art’ or grey science
The misnomer that acoustics is a “black art” is one we hear too often.