LASA

What LASA does

LASA (Laboratoire d'Application des Sciences Acoustiques) is a French acoustic and vibration engineering consultancy founded in 1975 in Paris and operating as an independent SARL (société à responsabilité limitée). The firm provides professional engineering services across three verticals — building, industrial, and environmental — covering room acoustics, facade and insulation design, environmental noise mapping, ICPE compliance, vibration propagation, and construction-site monitoring. With 40+ engineers and technicians distributed across nine French offices (Paris, Lyon, Bordeaux, Marseille, Annecy plus local presences in Rennes, Nantes, and Toulouse) and a partnership-based representation in the Antilles and Guyana, LASA serves enterprise clients including architects, contractors, industrial operators, and public authorities.

The technology stack is built on advanced numerical modeling (BEM/FEM), more than 40 years of proprietary measurement databases, and a portfolio of internally developed software tools: SAWL (a web-based platform for real-time acoustic and vibration monitoring and quality management on construction sites), GEOM (parametric geometric acoustic design for room shapes), DIFF (acoustic diffuser design), MEFISSTO (railway vibration propagation modeling), AcouS-STIFF (complex wall sound-reduction prediction), and HVAC noise modeling tools. LASA also integrates third-party acoustic simulation software (CATT-Acoustic, IMMI, SoundPlan, Acoubat). The firm holds OPQIBI qualifications 1601 through 1605 and was awarded the Grand Prix des Décibels d'Or 2024 in the Research category for its OVNA (Natural Acoustic Ventilation Openings) invention developed through R&D since 2015.

Revenue is generated through project-based professional consulting fees, with engagements ranging from one-off measurements and diagnostics to multi-year consultancy assignments quoted per project. The company is privately held by a group of associés (partners) including Director Samuel Tochon-Danguy and regional agency heads, with no external parent or private equity backing disclosed. LASA distributes services directly through its own offices and a channel partnership with Optima Energies in overseas French territories, with no reseller or distributor intermediaries in metropolitan France.

Name

LASA

Legal name

Laboratoire d'Application des Sciences Acoustiques

Website

https://lasa.fr

Company type

Private

Founded year

1975

Operating status

Operating

Headcount range

11–50 employees

Short description

LASA is a French acoustic and vibration engineering consultancy founded in 1975, serving building, industrial, and environmental sectors through nine offices. The firm delivers physics-based consulting, proprietary simulation software, and the SAWL real-time monitoring platform.

Ownership category

akta.pro rank

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices10 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D

Revenue model

1. Acoustic and Vibration Engineering Consulting: LASA generates revenue through professional engineering consulting services in acoustic and vibration engineering. Services range from one-off measurements and diagnostics to comprehensive multi-year consultancy assignments across building, industrial, and environmental sectors. Revenue is project-based, typically quoted per engagement.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

LASA is an independent acoustic and vibration engineering consultancy providing professional services across building, industrial, and environmental sectors. The firm delivers acoustic and vibration studies, modeling, on-site measurements, diagnostics, construction monitoring, and regulatory compliance support, leveraging proprietary in-house software tools (SAWL, GEOM, DIFF, MEFISSTO, AcouS-STIFF, AcouS-Propa) and advanced BEM/FEM numerical methods to help clients achieve guaranteed acoustic and vibration performance outcomes.

Product overview

LASA is a leading acoustic and vibration engineering consultancy founded in 1975, offering both proprietary software tools and professional engineering services. The core product is SAWL, a web-based platform for acoustic and vibration quality management on construction sites. Supporting the platform are specialized internal software tools including GEOM (parametric geometric acoustic design), DIFF (diffusing wall design), AcouS-Propa (indoor/outdoor propagation modeling), MEFISSTO (railway vibration propagation), and AcouS-STIFF (complex wall dimensioning). LASA also integrates third-party acoustic software (CATT-Acoustic, IMMI, SoundPlan, Acoubat) and provides comprehensive engineering services across 15+ domains including room acoustics, cultural/sports venues, residential/tertiary buildings, urban planning, vibrations, and R&D/innovation.

Differentiator

Problem solved

Functional benefit

Brands

• SAWL: Web-based platform for acoustic and vibration quality management on construction sites, developed in-house by LASA. SAWL stands for Synthèse, Acoustique, Web, LASA.
• GEOM
• DIFF

Products and services

• Acoustic and Vibration Engineering Consulting Services Comprehensive acoustic and vibration engineering consulting services for building, industrial, and environmental sectors. Includes room acoustics, architectural acoustics, cultural and sports venue acoustics, residential and tertiary building acoustics, construction-phase measurements and diagnostics, technical installation noise, industry and energy acoustics, urban planning acoustics, vibration analysis, R&D and innovation studies, sound reinforcement, and rehabilitation. Delivered to enterprise clients (building owners, architects, contractors, industrial operators, public authorities).
• SAWL (Synthèse Acoustique Web LASA) Platform SAWL is a web-based platform providing real-time synthesis, monitoring, and quality management of acoustic and vibration measurements on construction sites, industrial sites, and events. Features include continuous data updates, automated alarm notifications via email or SMS, and project-specific dashboards accessible via computer, smartphone, or tablet. Provided to clients as part of acoustic and vibration quality management engagements.
• Finite Element Modeling (FEM) Vibration and Acoustic Services Advanced finite element modeling service for vibration propagation in structures, eigenmode determination, and low-frequency modal analysis of performance halls. Applied to buildings exposed to vibrations from trains, trams, metros, and buses, and to low-frequency acoustic behavior of performance venues. Delivered using hybrid FEM and BEM techniques via in-house and proprietary tools (including MEFISSTO).
• OVNA (Ouvrants de Ventilation Naturelle Acoustique) Acoustic Ventilation Openings OVNA is LASA's proprietary solution for natural acoustic ventilation openings, comprising design methods and modeling/prediction tools that anticipate and dimension sound environments for ventilation openings according to site, exposure, and room usage. The offering addresses the trade-off between thermal comfort and acoustic noise intrusion in naturally ventilated buildings. Awarded Grand Prix des Décibels d'Or 2024 in the research category.

Quantifiable outcome

• OVNA (Natural Acoustic Ventilation Openings) awarded Grand Prix des Décibels d'Or 2024 in the research category

Named customers6 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

One partnership is on record.

• Optima EnergiescoreChannel Partner/ Reseller/ Distributor · 1 January 2018Partnership formed in 2018 for commercial and operational representation in the French Antilles and Guyane. Optima Energies provides local commercial representation, measurements, meetings, monitoring, and construction site follow-up services on behalf of LASA in these territories.

Scale indicators5 records

Recent moves10 records

Expansion highlights6 records

Broad incumbents

• Ramboll Acoustics: International engineering consultancy with acoustic and vibration services integrated into building, transport, and environmental practices. Comparable on the technical domains (building acoustics, environmental noise mapping, vibration) but competes as part of a broad full-service engineering firm rather than as an independent specialist.
• Sweco Acoustics: European engineering consultancy with acoustic services covering building design, infrastructure, and environmental noise. Comparable on technical domains and cross-border project capability; operates as part of a broader multi-disciplinary firm headquartered in Scandinavia.
• WSP Acoustics: Global professional services firm with acoustic engineering capabilities embedded in building and environment practices. Comparable on acoustics service line and ability to staff large infrastructure projects, but competes primarily as part of multi-disciplinary engineering teams rather than as a focused boutique.
• Arup Acoustics: Global engineering consultancy with a dedicated acoustics practice covering building, environmental, and infrastructure sound. Comparable on technical depth and project profile (concert halls, headquarters, transport hubs) but delivers acoustics as part of a much wider multi-disciplinary portfolio rather than as a focused specialist offering.
• AECOM Acoustics: Global infrastructure consultancy with acoustics practices serving transportation, buildings, and environmental sectors. Comparable in covering the same acoustic domains but competes as part of a multi-disciplinary full-service offering rather than as an independent specialist.

Direct peers

• Acoucite Ingénierie: Independent French acoustic and vibration engineering consultancy headquartered in Lyon, offering building, industrial, and environmental acoustics services. Closest direct peer in business model, service scope, and French market positioning; competes head-to-head with LASA for acoustic mandates.
• Müller-BBM Group: Germany-headquartered independent acoustic and vibration engineering consultancy with deep proprietary tooling and a strong track record across building acoustics, environmental noise, and industrial vibration. Comparable in model (specialist acoustic consultancy with proprietary modeling software) and larger in scale; serves as European benchmark.

Regional players

• Acoustique Padnos: A French acoustic engineering consultancy providing measurement, modeling, and design services across building, environmental, and industrial sectors. Directly comparable in scope (full-service French acoustics consultancy) and customer base, though operating primarily in northern France rather than nationwide.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/lasa-acoustique
• Instagraminstagram.com/lasaacoustique
• Xx.com/LASA_Acoustique

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 LASA