Mach Acoustics

What Mach Acoustics does

MACH Acoustics (legal entity MACH Acoustics Ltd, trading as MACH Group) is a UK-based acoustic consultancy and building physics services firm founded in 2003 by Ze Nunes and headquartered in Bristol, with a secondary London presence. The firm delivers acoustic design consultancy, environmental noise assessments (BS4142), building vibration surveys, sound and air tightness testing (Part E and Part L), daylight/sunlight assessments, SAP/SBEM calculations, Passivhaus design, and 3D acoustic modelling/auralisation services to architects, main contractors, developers, and educational institutions across the UK. Service delivery is project-based, with notable repeat clients including Willmott Dixon, Kier, Interserve, Wates, BAM, and leading architecture practices such as FCBStudios, Allies and Morrison, Feilden Clegg Bradley Studios, and AHR.

The firm operates a multi-division structure under the MACH Group umbrella: MACH Acoustics (core consultancy), MACH Testing (compliance testing with a proprietary Easy Sound Test booking platform), MACH Energy (holistic building physics and Passivhaus consultancy), MACH Software (BIM/Revit-integrated acoustic AI tools), and MACH Residential (Part E and Part L testing for the residential sector). Proprietary technology includes an in-house FDTD (Finite-Difference Time Domain) acoustic modelling software developed with the University of Southampton's ISVR, a Honeycomb Attenuator physical product for noise-attenuating natural ventilation, and a web-based Construction Detail Finder. Go-to-market is sales-led and event-driven, relying on CPD training sessions delivered to architecture and contractor firms, conference speaking (IOA, CIBSE, TEDx), published books, and direct project referrals, with no disclosed public pricing or subscription model.

Name

Mach Acoustics

Legal name

MACH Acoustics Ltd

Website

https://machgroup.co.uk

Company type

Private

Founded year

2003

Operating status

Operating

Headcount range

11–50 employees

Short description

MACH Acoustics is a UK-based acoustic consultancy and building physics firm (founded 2003, Bristol) delivering acoustic design, sound/air testing, daylight assessments, and Passivhaus consultancy to architects, contractors, developers, and educational institutions, with proprietary FDTD modelling software and a Honeycomb Attenuator product.

Ownership category

akta.pro rank

Product category

Acoustic Engineering and Building Physics Consultancy

NAICS

Testing Laboratories and Services (54138), Testing Laboratories and Services (541380), Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413)

SIC

Services-Testing Laboratories (8734), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Acoustic & Soundproofing Works (IMAFANAL)

akta.pro secondary industry

Soundproofing & Acoustic Insulation (Walls/Ceilings) (HSAPAFAH)

Keywords

• Acoustic consultancy
• Building physics services
• Sound insulation testing
• Environmental noise assessment
• Noise control products

Headquarters

HQ city

Bristol

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Acoustic Consultancy: Core revenue stream providing acoustic design consultancy across all areas of the built environment, including building design, environmental noise assessments, BS4142 assessments, noise and vibration surveys, and R&D. Delivered through direct engagement with architects, contractors, and developers on individual projects.
2. MACH Testing: Sound testing and air tightness testing services for Building Control compliance (Part E and Part L). MACH Testing offers standalone testing appointments or bundled with design consultancy. The Easy Sound Test service provides competitive rates when engineers are in a customer's geographic area.
3. MACH Energy: Building physics consultancy including SAP/SBEM calculations, daylight and sunlight assessments (BRE 209), overheating assessments, energy and sustainability statements, and Passivhaus design consultancy. Revenue generated through project-based professional services.
4. Honeycomb Attenuator (Product Sales): Sales of the proprietary Honeycomb Attenuator product, designed to enable natural ventilation while blocking noise spread in low energy buildings. The attenuator is a physical product installed in building facades.
5. CPD Training: Continuing Professional Development training sessions offered to architects, engineers, and contractors. Delivered as 20-minute modules or full sessions, covering topics such as natural ventilation, open plan teaching, sound insulation, construction details, and room acoustics. Can be booked as standard or bespoke sessions.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels7 records

Core offering

Mach Acoustics provides acoustic consultancy, building physics analysis, and compliance testing services for the built environment. The firm delivers acoustic design, noise and vibration surveys, environmental noise assessments, BS4142 evaluations, sound insulation testing (Part E), air tightness testing (Part L), SAP/SBEM energy calculations, and Passivhaus design consultancy to architects, contractors, developers, and educational institutions across the UK. The company also manufactures and sells the proprietary Honeycomb Attenuator, a physical product that enables natural ventilation while preventing noise spread in low energy buildings.

Product overview

MACH Group offers a portfolio of acoustic consultancy and testing services under distinct sub-brands. The core offering is MACH Acoustics providing acoustic consultancy across the built environment, complemented by MACH Testing (sound and air testing services), MACH Energy (building physics and sustainability consultancy), and MACH Software (BIM-integrated acoustic AI tools). The physical product The Honeycomb Attenuator enables natural ventilation while blocking noise transmission. Additional offerings include free web-based design tools, a construction detail finder, and Easy Sound Test online booking service. The Honeycomb Attenuator integrates with building ventilation systems, while MACH Software embeds acoustic AI directly into BIM workflows. The company also offers CPD training modules and auralisation services for pre-construction acoustic simulation.

Differentiator

Problem solved

Functional benefit

Brands

• The Honeycomb Attenuator: A patented product designed to overcome clashes between natural ventilation and acoustics in low energy buildings. Allows airflow while preventing spread of noise.
• MACH Energy
• MACH Residential
• Easy Sound Test

Products and services

• MACH Acoustics Acoustic Consultancy Provides intelligent, original and cost-effective acoustic design consultancy for the built environment, delivering building design advice, noise and vibration surveys, environmental noise assessments, and BS4142 evaluations to architects, contractors, developers, and educational institutions across the UK.
• The Honeycomb Attenuator A proprietary physical product installed in building facades that allows the flow of air into and through a building while preventing the spread of noise, enabling natural/cross ventilation on acoustically challenging sites without the energy penalty of mechanical ventilation.
• MACH Testing Professional testing and building control compliance service providing sound insulation testing and air tightness testing for Part E and Part L Building Regulations requirements, offered as standalone testing appointments or bundled with design consultancy.
• MACH Energy Building Physics Consultancy Holistic building physics consultancy offering Part L compliance (SAP/SBEM), daylight and sunlight assessments under BRE 209, overheating assessments for Approved Document O, energy and sustainability statements, and ventilation analysis for residential, commercial, educational, and public sector projects.
• MACH Software (BIM-integrated Acoustic AI Tools) Software offering that embeds acoustic artificial intelligence into BIM workflows and architectural packages such as Revit, providing design teams with tools that automate and improve the quality and efficiency of acoustic analysis.
• MACH Residential Acoustic Services Residential-focused acoustic consultancy and testing service providing site-focused acoustic testing in line with Part E of the Building Regulations, air tightness testing to Part L, acoustic design review, and pre-completion testing for residential developments.
• Easy Sound Test Booking Service Web-based booking and scheduling service for sound insulation and air tightness testing that offers discounted rates when MACH engineers are working in a customer's area, reducing cost and carbon footprint through reduced testing mileage.
• Auralisation Services Audio and visual simulation service combining 3D acoustic models with impulse responses to create auralisations that allow clients and design teams to hear how a space will perform acoustically before construction.
• CPD Training Modules Continuing Professional Development training modules covering natural ventilation, open plan teaching, sustainability, construction details, room acoustics, office acoustics, and Building Regulations, delivered as standard 20-minute modules or bespoke sessions to architecture and construction firms.

Quantifiable outcome

• 26% business growth in 2016
• +4 more outcomes

Named customers20 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature7 records

Partnerships

Nine partnerships are on record, tiered core, major and notable.

• Feilden Clegg Bradley StudioscoreStrategic or Co-development PartnerArchitecture firm that collaborated with MACH Acoustics on the Steiner School Frome project, which won the ANC Awards 2016 first prize for Best Sound Insulation. The CLT construction project required specialized acoustic design for a relatively new building material.
• University of Bath (ISVR / Department of Architecture and Civil Engineering)coreStrategic or Co-development PartnerOngoing academic collaboration with Dr Steve Lo (Senior Lecturer in Sustainable Environmental Engineering), Dr Gwenael Gabard, and Dr Filippo Fazi at ISVR for FDTD acoustic modelling research and MSc project supervision. Also collaborated on BaleHaus @ Bath research project. Founder Ze Nunes lectures at the university.
• Willmott DixonmajorStrategic or Co-development PartnerMain contractor on multiple MACH projects including Computational Foundry at Swansea University Bay Campus and Weston Town Hall refurbishment. Listed as one of MACH's biggest clients.
• Foster and Partners (Performance Network)notableGTM or Marketing PartnerZe Nunes was invited to present a webinar on 'Visualising Sound to Improve Open Window Performance' to the Foster and Partners Performance Network, addressing architects on ventilation and noise treatment in buildings.
• KiermajorStrategic or Co-development PartnerMain contractor on Steiner School Frome project (ANC Awards winner). Listed as one of MACH's biggest clients. MACH also delivers CPD training to Kier teams.
• Levitt BernsteinnotableStrategic or Co-development PartnerArchitecture firm on Bristol Colston Hall redevelopment competition. MACH Acoustics was shortlisted and invited for interview, producing 3D acoustic model auralisations of the proposed designs.
• Alec French ArchitectsnotableStrategic or Co-development PartnerArchitecture firm on Weston-super-Mare Town Hall refurbishment (£9.7m project) with Willmott Dixon as contractor. MACH provided comprehensive acoustic consultancy including auralisations and computer modelling.
• Napier UniversitynotableStrategic or Co-development PartnerConducted extensive laboratory testing on open window sound reduction that was used by MACH Acoustics' Chris Jones in FDTD modelling research, as part of standardizing testing and modelling methods for predicting sound reduction through open windows.
• Cullinan StudionotableStrategic or Co-development PartnerArchitecture firm on RHS Hyde Hall Hilltop Restaurant and Activity Barn project. MACH Acoustics providing acoustic consultancy for the new glulam timber frame building.

Scale indicators4 records

Recent moves12 records

Expansion highlights6 records

Broad incumbents

• Buro Happold:
• Arup: Global engineering consultancy with a substantial acoustics practice offering building acoustics, environmental noise, and vibration services. Direct competitor to MACH for major project commissions but operates at significantly greater scale with international reach and broader multi-disciplinary portfolio.

Direct peers

• Hoare Lea: UK building services engineering consultancy with a strong acoustics division, headquartered in Bristol. Closest UK-based direct peer to MACH in terms of scale and service overlap, competing for similar architectural practice and contractor clients across the South West and London.

Market position

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/machacoustics

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries4 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 Mach Acoustics