THE INSTITUTE OF ACOUSTICS LIMITED

Registered charity 267026 · accounts filings on the Charity Commission register · 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.

Objects

TO PROMOTE AND ADVANCE THE ART, SCIENCE AND TECHNOLOGY OF ACOUSTICS IN ALL THEIR ASPECTS.

Area of benefit: NOT DEFINED

The charity’s charitable objects and area of benefit, quoted from its governing document as held on the Charity Commission register.

Causes: Education/training · website · Get email alerts

Latest income

£1.3m

Latest spending

£1.6m

Registered

1974

Accounts read

FY2025

Financial health, per its FY2025 accounts

The charity reported a net expenditure of £231,921 for the year, resulting in a decrease in total unrestricted funds to £1,124,609. Despite this loss, the trustees state that free reserves excluding fixed assets of £759,611 remain above the stated target of approximately £650,000. The accounts confirm the charity is a going concern with adequate resources to continue operations.

Automated summary of the FY2025 accounts; the evidenced findings below carry the verbatim passages.

What the accounts disclose

Highest-paid employee band: £60,000 - £70,000 — below the median for charities its size (£70k)

“One individual employee (2024: one) received employee benefits of £60,000 or higher, (£60,000 - £70,000 band- 1)” — page 21

Per its FY2025 accounts as filed with the Charity Commission.

Employees paid over £60,000: 1

“One individual employee (2024: one) received employee benefits of £60,000 or higher, (£60,000 - £70,000 band- 1)” — page 21

Per its FY2025 accounts as filed with the Charity Commission.

Largest income source: Subscriptions (45% of income)

“Subscriptions 600,662” — page 14

Per its FY2025 accounts as filed with the Charity Commission.

Reserves policy: approximately £650,000 (held: £760k)

“At 31 December 2025the target was approximately £650,000, with a minimum reserve of £400,000, and the free reserves excluding fixed assets were £759,611” — page 6

Per its FY2025 accounts as filed with the Charity Commission.

Related-party transaction: A company connected to a trustee was paid for the provision of centre based education.

“During the year, a company connected to a trustee was paid £26,555 (2024: £38,190) for the provision of centre based education. This was awarded after a tender process undertaken by staff who are not trustees, standard trading rules applied.” — page 21

Per its FY2025 accounts as filed with the Charity Commission.

Accounts audited by Rayner Essex LLP. Discloses 6 of 6 completeness components.

Policies the charity declares

In its annual return the charity told the Commission that it has the policies listed below. This is self-declared: it is not verified by the Commission or by this site, and it is not evidence of how a policy works in practice.

Bullying and harassment policy and procedures
Complaints handling
Complaints policy and procedures
Conflicting interests
Financial reserves policy and procedures
Internal charity financial controls policy and procedures
Internal risk management policy and procedures
Investment
Paying staff
Risk management
Safeguarding policy and procedures
Serious incident reporting policy and procedures
Social media policy and procedures
Trustee conflicts of interest policy and procedures
Trustee expenses policy and procedures
Volunteer management

Property (HM Land Registry)

1 registered title in England and Wales held by the charity’s company or corporate body (0 freehold). All charity-held property. Contains HM Land Registry data © Crown copyright, OGL v3.0.

Public profiles (found on the charity’s own website): facebook · instagram

Structured financials (annual return, FY ending 31/12/2025)

Total income

£1.3m

Total spending

£1.6m

Cost of raising funds

£389k

Reserves (reported)

£1.1m

Employees

8

Reported reserves equal ~8.7 months of spending — above the median for charities its size (median 4.8 months; benchmarks).

Per its annual return, largest income source: Charitable activities (97% of income) — components as reported reconcile to the return’s total income; not from the accounts narrative.

Per its annual return, cost of raising funds: 29.4% of total income — in the top quarter for charities its size (median 5.2%) (benchmarks).

Trustees · trustee networks

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

Trustee list from the Charity Commission register (current, not historical).

Operates in: Belgium · Denmark · Dubai · France · Germany · Ireland · Italy · Netherlands · Northern Ireland · Scotland · Spain · Throughout England And Wales

Income and spending

Financial year end	Income	Spending
31/12/2025	£1.3m	£1.6m
31/12/2024	£1.3m	£1.5m
31/12/2023	£1.3m	£1.3m
31/12/2022	£1.1m	£1.2m
31/12/2021	£994k	£963k

Common questions

Is THE INSTITUTE OF ACOUSTICS LIMITED financially healthy?

Per its FY2025 accounts: The charity reported a net expenditure of £231,921 for the year, resulting in a decrease in total unrestricted funds to £1,124,609. Despite this loss, the trustees state that free reserves excluding fixed assets of £759,611 remain above the stated target of approximately £650,000. The accounts confirm the charity is a going concern with adequate resources to continue operations. Its FY2025 accounts were audited by Rayner Essex LLP.

What does the highest-paid employee of THE INSTITUTE OF ACOUSTICS LIMITED earn?

Per its FY2025 accounts, the highest-paid employee was in the £60,000 - £70,000 band, and 1 employees earned over £60,000.

Funders of similar charities

Funders whose accounts show grants to charities similar to this one (and no recorded grant to this charity) — a starting list for fundraisers.

Funder	Similar charities funded	Amount to them
THE SAVOY EDUCATIONAL TRUST	1	£102k

Charities like this

Semantically similar by activities and financial character, from our analysed corpus. Compare with THE INSTITUTE OF LICENSING.

THE INSTITUTE OF LICENSING income £556k
THE BRITISH ACADEMY OF MANAGEMENT income £913k
THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY income £3.9m
THE INSTITUTION OF MECHANICAL ENGINEERS income £28.3m
ROYAL INSTITUTION OF NAVAL ARCHITECTS income £1.9m
INSTITUTE OF HOSPITALITY income £1.3m

Side by side with its peers

Charity	Income	Top pay band	Staff >£60k	Reserves vs policy	Fundraising cost	Going concern
THE INSTITUTE OF ACOUSTICS LIMITED	£1.3m	£60,000 - £70,000	1	above	—	no doubt
THE INSTITUTE OF LICENSING FY2025	£556k	—	0	above	—	no doubt
THE BRITISH ACADEMY OF MANAGEMENT FY2025	£913k	—	—	above	—	no doubt
THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY FY2024	£3.9m	—	—	above	—	no doubt
THE INSTITUTION OF MECHANICAL ENGINEERS FY2025	£28.3m	—	—	unclear	—	no doubt
ROYAL INSTITUTION OF NAVAL ARCHITECTS FY2025	£1.9m	£100,001 - £110,000	5	unclear	—	no doubt

Each row is that charity’s latest analysed filing; every value is quote-backed on its own page.