ACOUSTB
ACOUSTB is a French acoustic and vibratory engineering consultancy and wholly-owned Egis Group subsidiary serving construction, infrastructure, industrial, and urban planning clients across six service domains through 8 French offices and 51 specialists.
- Company typePrivate
- Founded1995
- HeadquartersSaint-martin-d'heres, France
- Headcount11–50
- GTM typeB2B
- OfferingServices
What ACOUSTB does
ACOUSTB is a French acoustic and vibratory engineering consultancy headquartered in Saint-Martin-d'Hères, founded in 1995 by CSTB to commercialize acoustic technologies developed within the French scientific center. Since 2025 it has operated as a wholly-owned subsidiary of Egis Group, following Egis's initial capital entry in 2003 and majority takeover in 2006. The firm delivers specialized consulting services across six domains: building acoustics, urban and transport acoustics, industrial acoustics, vibrations, underwater acoustics, and room acoustics. Its work spans regulatory compliance, acoustic comfort, noise mapping, and vibration analysis for architects, construction firms, infrastructure developers, industrial operators, and territorial authorities.
The business operates as a project-based professional services practice. Revenue is generated through fee-for-service engagements, supported by OPQIBI certifications 1601 through 1605 that attest to technical mastery across all acoustic domains. ACOUSTB is staffed predominantly by acoustic engineers and technicians organized by activity domain, with each line led by a dedicated activity head. Operations are distributed across 8 French locations, supported by an administrative pole, with capacity to engage internationally on demand. The firm reports approximately 500 acoustic measurements conducted annually and a cumulative client base exceeding 3,500 since inception. Distribution is direct and sales-led, with marketing handled primarily through the Egis Group digital infrastructure.
In addition to core consulting, ACOUSTB participates in CénosIA by Egis, an AI-powered digital solution for assessing environmental impact on construction sites, signaling an early move beyond pure consulting into technology-enabled service delivery. For FY2024 the firm reported €5.2M in revenue with 15% average annual growth over the preceding decade, and at the start of 2025 it employed 51 collaborators.
ACOUSTB firmographics
Firmographics- Name
- ACOUSTB
- Legal name
- ACOUSTB
- Website
- https://egis-acoustb.fr
- Company type
- Private
- Founded year
- 1995
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- ACOUSTB is a French acoustic and vibratory engineering consultancy and wholly-owned Egis Group subsidiary serving construction, infrastructure, industrial, and urban planning clients across six service domains through 8 French offices and 51 specialists.
- Ownership category
- akta.pro rank
ACOUSTB industry classification
Industry- Product category
- Acoustic and Vibratory Engineering Services
- NAICS
- Architectural, Engineering, and Related Services (5413)
- akta.pro primary industry
- Acoustic & Soundproofing Works (IMAFANAL)
Keywords
Where ACOUSTB is headquartered
LocationHeadquarters
- HQ city
- Saint-martin-d'heres
- HQ country
- France
- HQ region
- Europe
Offices2 records
Markets served
ACOUSTB business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure, Others
Revenue model
- Engineering Consultancy Services: Professional engineering services in acoustic and vibratory design, consulting, and measurements for construction, infrastructure, industry, and urban planning projects. Revenue is generated through project-based professional services fees.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels3 records
ACOUSTB product offering
Product offeringCore offering
ACOUSTB is a specialized acoustic and vibratory engineering consultancy that designs, measures, and validates acoustic solutions for buildings, urban and transport infrastructure, industrial facilities, room and hall environments, underwater installations, and vibration-sensitive projects. The firm delivers six core service domains — Building Acoustics, Urban & Transport Acoustics, Industrial Acoustics, Vibrations, Underwater Acoustics, and Room Acoustics — through a team of acoustic engineers and technicians deployed across 8 locations in France. It also operates CénosIA by Egis, an AI-powered digital solution addressing environmental impacts of construction sites.
Product overview
ACOUSTB is a specialized acoustic and vibratory engineering consultancy and wholly-owned subsidiary of the Egis Group. The firm operates as a unified service-based practice offering six core acoustic service domains: Building Acoustics, Urban & Transport Acoustics, Industrial Acoustics, Vibrations, Underwater Acoustics, and Room Acoustics. These services are delivered through a team of 51 acoustic engineers and technicians across 8 French offices. ACOUSTB also leverages CénosIA by Egis, an AI-powered digital solution for environmental impact assessment on construction sites. The company provides comprehensive acoustic consulting from regulatory compliance to user wellbeing, serving over 3,500 clients since inception with approximately 500 acoustic measurements conducted annually.
Differentiator
Problem solved
Functional benefit
Products and services
- Building Acoustics (Acoustique Bâtiments)
Quantifiable outcome
- 500+ acoustic measurements performed annually
- +2 more outcomes
Companies that use ACOUSTB
Customer profileNamed customers2 records
Segments4 records
Ideal customer profiles4 records
ACOUSTB technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature1 record
ACOUSTB partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Egis GroupcoreEgis Group acquired initial shares in 2003 and became majority shareholder in 2006. In 2025, Egis acquired the remaining CSTB shares, making ACOUSTB a wholly-owned subsidiary. ACOUSTB operates as the acoustic and vibratory expertise center within the Egis Group, collaborating with other technical disciplines (structures, environment, mobility) to provide integrated solutions.
Scale indicators7 records
Recent moves7 records
Expansion highlights5 records
ACOUSTB competitors and assessment
Company assessmentDirect peers
- Sixense Group: VINCI-owned engineering consultancy specialised in measurement, monitoring and acoustics/vibration for infrastructure and buildings – directly comparable business model and service mix to ACOUSTB.
- Müller-BBM Group: Leading German acoustic and vibration engineering consultancy covering buildings, environment, industry and transport – highly comparable specialty engineering model to ACOUSTB.
- Ahaus Acoustics: Netherlands-based acoustic consultancy with comparable services in building, industrial and environmental acoustics, addressing similar regulatory-driven demand.
Broad incumbents
- Arup: Global multidisciplinary engineering firm with a long-standing acoustics practice serving buildings, transport and infrastructure – competes for the same large mandates as ACOUSTB but operates within a much broader portfolio.
- Ramboll: International engineering consultancy with significant acoustics and environmental noise practices overlapping ACOUSTB's urban/transport/industrial service lines.
- WSP: Global professional services firm with established acoustics and vibration capabilities for buildings and infrastructure – overlapping client base but embedded in a much wider offering.
- SOCOTEC: French testing, inspection and certification group that includes acoustic measurement and building performance services – directly competes with ACOUSTB in French building-acoustics compliance work, but as part of a diversified TIC portfolio.
- Setec: French independent engineering group active in buildings, infrastructure and environment, with acoustics expertise integrated into its project work – a comparable French multidisciplinary competitor.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
ACOUSTB social profiles
Digital presenceACOUSTB compliance and trust
Trust signalCompliance2 records
ACOUSTB financial estimates
Financial estimateRevenue estimate
Valuation estimate
ACOUSTB leadership team
Management profileNumber of profiles
Profiles8 records
ACOUSTB funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
ACOUSTB M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about ACOUSTB
What does ACOUSTB do?
ACOUSTB is a specialized acoustic and vibratory engineering consultancy that designs, measures, and validates acoustic solutions for buildings, urban and transport infrastructure, industrial facilities, room and hall environments, underwater installations, and vibration-sensitive projects. The firm delivers six core service domains — Building Acoustics, Urban & Transport Acoustics, Industrial Acoustics, Vibrations, Underwater Acoustics, and Room Acoustics — through a team of acoustic engineers and technicians deployed across 8 locations in France. It also operates CénosIA by Egis, an AI-powered digital solution addressing environmental impacts of construction sites.
Is ACOUSTB a public or private company?
ACOUSTB is a private company. It is classified as corporate owned and is currently operating.
When was ACOUSTB founded?
ACOUSTB was founded in 1995. It employs 11 to 50 people.
Where is ACOUSTB based?
ACOUSTB is headquartered in Saint-martin-d'heres, France, in the Europe region.
How does ACOUSTB make money?
One revenue line is on record: engineering Consultancy Services.
Who are ACOUSTB's main competitors?
Direct peers on record are Sixense Group, Müller-BBM Group and Ahaus Acoustics. Broad incumbents are Arup, Ramboll, WSP, SOCOTEC and Setec.
Does ACOUSTB have an API?
No public API is recorded for ACOUSTB.
What industry is ACOUSTB in?
ACOUSTB's product category is Acoustic and Vibratory Engineering Services. Its primary akta.pro industry code is IMAFANAL, Acoustic & Soundproofing Works. Its NAICS code is 5413.