What Acoustique & Conseil does

Acoustique & Conseil is a French acoustic engineering consultancy founded in 1984, operating as a privately held société par actions simplifiée (SAS) with a 20-49 employee headcount distributed across seven agency offices in France (Paris, Aix-en-Provence, Lyon, Tours, Nice, Saint-Brieuc, and supporting locations in Rennes and Vannes). The firm is a pure-play specialist in acoustics and vibration control, organized around six service domains: Architecture, Culture, Industry, Urban Planning, Sound Engineering (Sonorisation), and Vibrations. It generates revenue through professional services engagements — acoustic studies, engineering, design consulting, on-site measurements, and certifications — delivered on a project basis to enterprise, government, institutional, and developer clients.

The firm differentiates through a proprietary technical stack developed in-house at its A&C Lab division, including the A&C Quasi-Modo 3D ray-tracing engine for room acoustic prediction, the Crithall room-criteria calculator with its 'hérisson' diagram, ambisonic beamforming using a Zylia 19-capsule microphone, custom ITU-T P.58 binaural heads, a 6-driver ISO 16283-1/3382-1 omnidirectional sound source, and bespoke bass-trap simulators and speech intelligibility processors. It is OPQIBI-qualified in all five French acoustic certification domains (1601-1605) continuously for decades, ISO 9001:2015 certified since 2009, and in April 2025 was granted ministerial agrément to issue acoustic compliance certificates for new residential buildings in mainland France.

The client base spans defense, justice, healthcare, performing arts, broadcasting, museums, transportation, real estate, education, and diplomatic projects — including Balard Ministry of Defense, ITER France, Maison de la Radio, La Samaritaine, Théâtre du Châtelet, Bourse de Commerce, the Japan Embassy in Paris, Panama Metro Line 1, and SYTRAL Lyon Metro. The firm participates in industry research through Cinov GIAc (Eric Gaucher served as its President 2014-2017 and remains Vice-President), maintains a 2014-established partnership with AE&T for industrial alert systems, and in 2024 acquired Acoustique Yves Hernot to consolidate its Bretagne presence. Revenue was €1,750,900 in FY2016 with 18.94% balance sheet growth; no post-2016 financials are publicly disclosed.

Name

Acoustique & Conseil

Legal name

ACOUSTIQUE & CONSEIL

Website

https://acoustique-conseil.com

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

11–50 employees

Short description

Acoustique & Conseil is a French acoustic engineering consultancy founded in 1984, delivering architectural, environmental, industrial, cultural, and vibration acoustics services through seven offices across France, with proprietary measurement tools and OPQIBI and ISO 9001 certifications.

Ownership category

akta.pro rank

Product category

Acoustic Engineering Services

NAICS

Environmental Consulting Services (54162), Architectural, Engineering, and Related Services (5413), Other Scientific and Technical Consulting Services (541690)

SIC

Services-Management Consulting Services (8742), Services-Commercial Physical & Biological Research (8731)

akta.pro primary industry

Environmental Compliance & Permitting (BPAHAJAA)

Keywords

• Acoustic engineering consulting
• Architectural acoustics design
• Industrial noise control
• Vibration measurement services
• Environmental noise studies

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices6 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Acoustic Consulting and Engineering Services: Professional services revenue from acoustic studies, engineering, and consulting across architecture, culture, industry, urban planning, sound engineering, and vibration control. Services are delivered by consultants, engineers, and technicians through geographically distributed agencies. The firm was active since 1984 with revenue of €1,750,900 in 2016.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels7 records

Core offering

Acoustique & Conseil is a French acoustic engineering consultancy founded in 1984. It delivers expert acoustic studies, engineering and consulting across six disciplines: Architecture, Culture, Industry, Urban Planning, Sound Engineering (Sonorisation), and Vibration Control. Services are performed by acoustic consultants, engineers and technicians from a network of regional offices in France, and include measurement, prediction, design and on-site supervision for buildings, infrastructure and industrial sites.

Product overview

Acoustique & Conseil is a specialist acoustic consulting firm founded in 1984, operating as a unified services company rather than a software product company. Its core offering is expert acoustic consulting across six domains: Architecture, Culture, Industry, Urban Planning, Sound Engineering (Sonorisation), and Vibrations. The A&C LAB division develops proprietary measurement tools and analysis software (Crithall, A&C Quasi-Modo3D©) used internally to support consulting engagements. Named sub-products include Vibration Control Studies, Sound Engineering studies, Antennerie Ambisonique (ambisonic beamforming measurements), Acoustique des Salles (concert hall and theatre design), Recording Studio Design, and — as a formal certification offering — Acoustic Certification for New Housing (Attestation Acoustique Logement). Services are delivered through a geographically distributed network of agencies across France.

Differentiator

Problem solved

Functional benefit

Products and services

• Acoustic Consulting Services

Quantifiable outcome

• 40+ years of continuous OPQIBI qualification in all five acoustic domains
• +3 more outcomes

Named customers20 records

Segments5 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

One partnership is on record.

• AE&T (Alertes et Télécommunications)coreTechnology or Integration · 1 January 2014Since 2014, Acoustique & Conseil collaborates with AE&T, a manufacturer of communication solutions for population protection since 1976. AE&T develops custom alert systems (PPI/POI/PUI/PPMS/SSS) for complex specifications. Acoustique & Conseil provides acoustic coverage, audibility, and speech intelligibility optimization for these systems through 3D acoustic measurements, diagnostics, and simulations at building and city scale. Nearly 50 joint projects have been delivered for clients including CEA, SNCF, Airbus Helicopters, Airbus Defense and Space, EDF (nuclear and dams), and PPI projects in Roanne and Béthune. The collaboration combines alert system manufacturing with acoustic engineering including environmental acoustics and Geographic Information Systems (GIS).

Scale indicators8 records

Recent moves8 records

Expansion highlights11 records

Broad incumbents

• AIA Ingénierie: French multidisciplinary engineering consultancy with a dedicated acoustics practice serving the same architecture, real estate, and infrastructure clients. Larger and broader than A&C but competes for the same acoustic engineering mandates.
• Arup Acoustics: Global engineering firm with a world-renowned acoustics practice covering buildings, transport, and environmental noise. Comparable technical capability but embedded within a much larger multidisciplinary engineering organization.
• Buro Happold (Acoustics): International engineering consultancy with an acoustics team serving cultural, transport, and building projects. Comparable technical scope to A&C's cultural and architectural acoustics work, but operating at a much larger scale.
• Tractebel Engineering (acoustic practice): International engineering consultancy (Engie group) offering acoustics and vibration services to infrastructure, energy, and building clients in France and Europe. Competes for the same large-scale acoustic mandates.
• Egis Acoustique: Major French engineering group with an acoustics and vibration practice serving transport, buildings, and urban infrastructure. Competes for the same large public and private acoustic mandates as A&C but with vastly greater scale.

Direct peers

• Müller-BBM: Leading German acoustic consulting and engineering firm with deep expertise in building acoustics, environmental noise, and vibration control. Closely comparable technical offering and similar boutique-specialist positioning in a neighboring market.
• Acouphen: French acoustic consulting firm providing similar architectural, environmental, and industrial acoustics services across France. Directly comparable in scope, scale, and customer base to Acoustique & Conseil.

Peers

• CSTB (Centre Scientifique et Technique du Bâtiment): French scientific and technical center for building research, including acoustics. Not a direct commercial competitor but an adjacent technical authority whose standards, research, and policy engagement shape A&C's regulatory environment and are referenced in the firm's methodology.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/acoustiqueconseil
• LinkedInlinkedin.com/company/acoustique-&-conseil

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Subsidiaries1 record

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 Acoustique & Conseil