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The Institute Of Acoustics Limited

Also known as: Ioa

The Institute is the professional body representing acoustics in the United Kingdom, and provides a range of services for members. The Institute's principal objectives are:Education, Conferences and Meetings, Publications.

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Activities & Mission

The Institute is the professional body representing acoustics in the United Kingdom, and provides a range of services for members. The Institute's principal objectives are:Education, Conferences and Meetings, Publications.

Areas of Operation

Where this charity is registered to operate, as self-declared to the Charity Commission. These are regulatory classifications, not a list of active programmes, and don't necessarily indicate fundraising activity in each location.

Show all 13 areas of operation

Financial Information

Latest Income
£1,310,903
Latest Expenditure
£1,457,120

Financial Efficiency

Program Ratio 84.2%
% of income going directly to charitable activities

Higher than 35% of UK Arts charities with income £1M to £10M (sample: 780). How is this calculated?

Overall Efficiency 75.8%
% of expenditure going to programs (vs overhead)

Higher than 13% of UK Arts charities with income £1M to £10M. How is this calculated?

Administrative Ratio 36.3%
Overhead (fundraising + governance) as % of total expenditure

Lower overhead than 6% of UK Arts charities with income £1M to £10M. (Lower overhead is generally read as more efficient.) How is this calculated?

Latest Financial Breakdown

Income Sources

Donations & Legacies £0
Charitable Activities £1,297,663
Other Trading £0
Investments £8,550
Other Income £4,690

Expenditure Categories

Charitable Expenditure £1,104,314
Raising Funds £352,806
Governance £175,511
Grants to Institutions £0
Other Expenditure £0

Financial Trend

Annual Returns

As filed with the Charity Commission for England and Wales. Most recent filing covers the financial year ending 2024.

Financial YearIncomeExpenditureCharitable SpendingNet AssetsReservesStaff
2024
£1,310,903
£1,457,120£1,104,314£1,348,355£1,356,5307 / 50
2023
£1,252,769
£1,342,590£997,411£1,502,747£1,502,7477 / 20
2022
£1,139,264
£1,178,729£845,506£1,592,568£1,591,9406 / 50
2021
£994,194
£962,642£363,244£1,632,033£1,624,3836 / 70
2020
£1,600,481
£901,012£613,760£1,600,481£1,600,4816 / 6

Staff column shows: Employees / Volunteers

Frequently asked questions about The Institute Of Acoustics Limited

What does The Institute Of Acoustics Limited do?

The Institute is the professional body representing acoustics in the United Kingdom, and provides a range of services for members. The Institute's principal objectives are:Education, Conferences and Meetings, Publications.

How much income did The Institute Of Acoustics Limited report in 2024?

The Institute Of Acoustics Limited reported total income of £1.31m and reported expenditure of £1.46m for the financial year ending 2024, based on the most recent annual return filed with the Charity Commission.

How efficient is The Institute Of Acoustics Limited?

The Institute Of Acoustics Limited has a program ratio of 84.2%, meaning that share of its income goes directly to charitable activities. This is higher than 35% of UK Arts charities with income £1M to £10M (sample of 780 charities). See our methodology for how this is calculated.

When was The Institute Of Acoustics Limited registered as a charity?

The Institute Of Acoustics Limited was registered with the Charity Commission for England and Wales on 19 March 1974 as charity number 267026. It has been registered for 52 years.

Who runs The Institute Of Acoustics Limited?

The Institute Of Acoustics Limited is governed by a board of 17 trustees. The chair of trustees is Alistair William McIntosh Somerville. Trustees are legally responsible for the charity's governance and are listed in full on its profile.

Where does The Institute Of Acoustics Limited operate?

The Institute Of Acoustics Limited operates across 13 areas, including Belgium, Denmark, Dubai and 10 others. The full list is shown on its profile.

Is The Institute Of Acoustics Limited a registered charity?

Yes — The Institute Of Acoustics Limited is a registered charity in England and Wales, charity number 267026.

Details

Address
Institute of Acoustics
Silbury Court
406 Silbury Boulevard
MILTON KEYNES
MK9 2AF
Registration Date
19 March 1974
Status
Registered

Registry Information

Organisation Number
267026
Charity Number
267026

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Trustees

Alistair William McIntosh Somerville Chair
Charles Daniel Goodhand
Daniel Krzysztof Saunders
Dr Yoyou Liu
Fiona Elizabeth Rogerson
Hilary Notley
James McIntyre
Josephine Emma Nixon
Laura Josette Webb
Mark Scaife
Also governs 1 other charity
Matthew Charles Torjussen
Michael Breslin
Paul James Shields
Peter Rogers
Prof David Waddington
Reena Motilal Mahtani Mirchandani
Richard Adrian Perkins

Sectors & Classifications

Also Known As

  • Ioa

Data & trust

Register data refreshed
14 May 2026
Report a data issue