What Transamo does

Transamo is a French private Société Anonyme founded in 1994, headquartered in Issy-les-Moulineaux in the Paris metropolitan area, that provides specialist consulting services to the public transport sector. Its activities span mobility studies (Études de Mobilité), project management oversight and delegated project ownership (Conduite de Projets and Maîtrise d'Ouvrage Déléguée mandates), systems/maintenance/operations expertise (Systèmes, Maintenance & Exploitation), and broader project consulting (Conseil & Management de Projet). The firm serves Autorités Organisatrices de Mobilité, metropolitan authorities, intermunicipal transport syndicates, and other public-sector clients across France and internationally, supporting complex tramway, BHNS (Bus à Haut Niveau de Service), metro, cycling, and multimodal interchange projects from feasibility study through construction oversight and operational readiness.

Transamo's core technology comprises industry-standard transport modeling and traffic simulation tooling (including VISSIM) together with proprietary methodologies developed across 70+ projects for ridership forecasting, network modeling, and program governance. These methodologies and the firm's accumulated reference datasets constitute its principal technical differentiation, complemented by independence from equipment manufacturers and operators. The company maintains ISO 9001:2015 certification and was certified as a Great Place to Work in 2023.

The business model is fee-for-service professional services revenue generated through negotiated contracts and public procurement frameworks. Transamo acts both as prime contractor leading project consortia and as specialist team member in larger partnerships. Its two principal shareholders are Transdev SA (a major international public transport operator) and the Société des Transports intercommunaux de Bruxelles (STIB), providing strategic alignment, industry connectivity, and a recurring pipeline of project opportunities. Revenue is concentrated exclusively in the public sector, with long-tenure anchor mandates (notably the Grand Paris Line 18 AMO running through 2032 and the Le Mans Métropole engagement ongoing since 2001) underpinning revenue visibility.

Name

Transamo

Legal name

Transamo, Société anonyme au capital de 152 460 euros

Website

https://transamo.fr

Company type

Private

Founded year

1994

Operating status

Operating

Headcount range

101–250 employees

Short description

Transamo is a French private engineering consultancy providing mobility studies, AMO/MOA project management, and systems/maintenance advisory to public transport authorities and local governments across tramway, BHNS, metro, and cycling projects in France and internationally.

Ownership category

akta.pro rank

Headquarters

HQ city

Issy-les-moulineaux

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. AMO and Consulting Services: Transamo generates revenue through fee-for-service consulting engagements, providing Assistance à Maîtrise d'Ouvrage (AMO), project management, and technical advisory services for public transport infrastructure projects. Services include mobility studies, project oversight, systems expertise, and maintenance consulting for tramways, BHNS (Bus à Haut Niveau de Service), and other public transport systems.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Transamo is a specialist consultancy providing Assistance à Maîtrise d'Ouvrage (AMO) and Maîtrise d'Ouvrage Déléguée (MOA mandates) services for public transport infrastructure projects. It supports local authorities and transport organizing authorities across the full project lifecycle—from feasibility studies, modeling, and design through construction oversight, commissioning, and maintenance consulting—on tramways, BHNS, metro systems, and multimodal hubs in France and internationally.

Product overview

Transamo is a consulting firm specializing in studies, advisory, and delegated project ownership (AMO/MOA) for the public transport and mobility sector. The company operates through four interconnected service pillars: Conduite de Projets (project management), Études de Mobilité (mobility studies), Systèmes Maintenance & Exploitation (systems/operations/maintenance expertise), and Conseil & Management de Projet (consulting and project management). As a shareholder-owned company backed by Transdev SA and STIB, Transamo supports local authorities and public transport organizing authorities across the entire project lifecycle—from initial feasibility studies and preliminary design through construction oversight, commissioning, and operational maintenance support. The company works on diverse transport modes including tramways, BHNS (high-level service buses), metro systems, cycling infrastructure, and multimodal exchange hubs.

Differentiator

Problem solved

Functional benefit

Products and services

• Conduite de Projets Project management services for public transport projects, partnering with local authorities and public entities for complete public transport projects.
• Études de Mobilité Mobility studies conducted early in the project lifecycle to justify, define, and design transport projects for local authorities and Mobility Organizing Authorities.
• Systèmes, Maintenance & Exploitation Expertise combining operations, maintenance, and transport systems expertise enabling comprehensive and thorough technical evaluation of public transport projects.
• Conseil & Management de Projet Project support services with dedicated approaches and tools to organize, pilot, communicate, create motivation and exchanges for project stakeholders.
• Maîtrise d'Ouvrage Déléguée (MOA Mandates) Delegated project ownership services where Transamo acts as mandatary to manage complete transport projects from program definition through to completion and warranty follow-up.

Quantifiable outcome

• Successful delivery of major projects including 15km tramway in Tours (€409M), 17.8km BHNS in Metz (€230M), and ongoing Grand Paris Line 18 AMO

Named customers6 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Two partnerships are on record, tiered core.

• Transdev SAcoreStrategic or Co-development PartnerTransdev SA is a major international operator of public transport and one of the two main shareholders of Transamo. The relationship provides Transamo with industry connections, operational expertise, and a steady pipeline of project opportunities through Transdev's global operations.
• STIB (Société des Transports intercommunaux de Bruxelles)coreStrategic or Co-development PartnerSTIB is the public transport operator in Brussels and one of the two main shareholders of Transamo. This relationship provides mutual benefits including access to Belgian market opportunities and operational insights from a major transport operator.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Systra: Systra is the closest direct peer — a French-headquartered engineering consultancy dedicated to public transport and rail, providing project management, AMO, and engineering services to public authorities worldwide. Direct overlap with Transamo on tramway, metro, and BHNS mandates.
• Egis: Egis is a major French engineering group with a dedicated transport and mobility practice covering AMO, project management, and systems engineering for rail, tram, and metro. Direct competitor on French public transport tenders.
• Ingérop: Independent French engineering firm with significant transport infrastructure and mobility consulting practice, frequently competing with Transamo on AMO and project management mandates for French local authorities.
• Artelia: Artelia is a French engineering and project management group with a strong mobility and urban transport practice, regularly competing on tramway, BHNS, and metro AMO mandates across France and internationally.
• Setec: Setec is a French engineering group with a dedicated transport and mobility subsidiary (setec ITS / setec tpi) that competes directly with Transamo on AMO and project management mandates for French and international public transport projects.

Others

• Transdev: Transdev is a major shareholder of Transamo and a global public transport operator. While not a direct competitor (Transdev operates networks, Transamo advises on their development), it is an embedded partner and pipeline source for AMO mandates.
• RATP Dev: RATP Dev operates urban transit networks globally and maintains in-house engineering and project development capabilities. While not a pure consultancy, it is an adjacent player with overlapping customer base and occasional competing tender participation.

Broad incumbents

• Arcadis: Arcadis is a global design and consultancy firm with a significant mobility and rail practice. It competes with Transamo on larger cross-border mandates but does not specialize in the French public transport AMO niche.
• WSP: WSP is a global engineering consultancy with a major mobility and rail practice that competes on large international public transport mandates, though without Transamo's depth in French AMO/MOA work.
• Ramboll: Ramboll is a global engineering consultancy with a strong mobility practice in Northern Europe. Comparable to Transamo in offering transport planning and infrastructure advisory, but with much broader geographic and sectoral footprint.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/transamo

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 Transamo