What Les Sentinelles du Rail does

Les Sentinelles du Rail, founded in 2014, is a French railway construction site security and traffic management services company headquartered in Paris with operational offices in Buc (Île-de-France). The company deploys certified operators to protect rail tracks and manage traffic during construction and maintenance works on French rail infrastructure. Its client base centers on SNCF Réseau and its regional Infrapôles, supplemented by engagement on major capital projects including the TELT Lyon-Turin cross-border tunnel and the LGV Nord high-speed line.

The company's service portfolio is built around a stack of certified operational roles: TES M (Track Engagement Service – Manual), AP LAM (Approach and Lane Alert Manual), TES F (Track Engagement Service – Full), AP S9, PEC, DAPR, ground agent, RSO, and DCC. Each certification is a regulatory prerequisite for delivering the corresponding scope of work on active rail infrastructure, and the company holds the full set. Critically, the operating model relies on 500+ operators, all employed on permanent CDI contracts rather than temporary or subcontracted labor, with 35,400 operator-days delivered in 2025 and a workforce that has grown from 30 operators in 2016 to 195 CDI operators by 2026.

Revenue is generated on a fee-for-service basis tied to operator-day volume under multi-year contracts with rail infrastructure operators. The company reported €17.5 million in revenue for FY2026 and records a client satisfaction score of 19.4/20. The business is entirely service-delivery based, with no disclosed software product, proprietary technology platform, or AI/automation capability. Geographic footprint now spans nationwide France, and operational scaling is reflected in active back-office hiring (Control de Gestion, Gestion de la Paye).

Name

Les Sentinelles du Rail

Legal name

LES SENTINELLES DU RAIL

Website

https://lessentinellesdurail.fr

Company type

Private

Founded year

2014

Operating status

Operating

Headcount range

101–250 employees

Short description

Les Sentinelles du Rail, founded in 2014, provides certified railway construction site security and traffic management services across France, deploying 500+ permanent CDI operators to SNCF Réseau, Infrapôles, TELT, and LGV Nord projects.

Ownership category

akta.pro rank

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Railway Safety Services: Professional services revenue generated by deploying trained safety operators to railway worksites throughout France. Services include announcers (TES M), crossing protection (TES F), lorry protection (AP LAM), electrical protection (PEC), S9 protection, and ground agent services. Pricing is based on per-day rates for deployed operators.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Les Sentinelles du Rail deploys trained, certified safety operators to railway construction and maintenance worksites across France. Its service portfolio includes announcer services (TES M), level crossing protection (TES F/AP PN), lorry protection (AP LAM), electrical catenary protection (PEC), portable radio announcement (DAPR), S9 protection, ground and escort agents, and operational safety management (RSO). All operators are employed on permanent contracts (CDI), and services are delivered on-site to clients such as SNCF Réseau and its regional Infrapôle divisions.

Product overview

Les Sentinelles du Rail operates as a unified service offering focused on railway construction site security across France. The company provides a comprehensive portfolio of specialized security and protection services centered around railway safety operations. The core offerings include TES M (announcer services), AP LAM (lorry agent services), TES F (level crossing protection), AP S9, PEC (electrical catenary protection), DAPR (portable radio announcement), ground agent services, RSO, and DCC services. These services collectively form an integrated security ecosystem for railway construction sites, with the company reporting 35,400 secured days, 195 operators (all on CDI contracts), and €17.5 million in revenue as of 2026.

Differentiator

Problem solved

Functional benefit

Products and services

• TES M (Annonceur / Rail Circulation Announcement) Announcer service that ensures announcement of rail circulations in the absence of automatic announcement devices; deployed to railway worksites across France. Worked with 145 announcers and 87 ASP agents in 2025.
• AP LAM (Agent Prestataire Lorry Automoteur) Lorry Automoteur Agent service providing protection and management of on-track lorry movements. Delivered 6,607 secured days in 2025 with 105 AP LAM agents, including engagements on the Lyon-Turin rail link (TELT) since 2020.
• TES F / AP PN (Level Crossing Protection) Service ensuring protection of railway circulations against road traffic at level crossings. Secured 633 days in 2025 with 44 AP PN agents.
• AP S9 (Agent Prestataire S9) Safety operator service covering S9 protection roles at various RVB and RAV locations. Delivered 969 secured days in 2025 with 98 AP S9 agents.
• PEC (Protection Électrique Caténaire) Electrical catenary protection service for railway worksites, providing 1,348 secured days in 2025 with 13 CH3-CB3 agents and 27 CH1-CB1 agents.
• DAPR (Dispositif d'Annonce Portatif par Radio) Portable Radio Announcement Device service enabling railway circulation announcements via portable radio systems. Delivered 1,200 secured days in 2025.
• Aide SE et Montage LTV Electrical Service Assistance and Temporary Speed Limit Assembly service operating with Infrapôle PDL, including train grinder operations in Toulouse.
• Agent au Sol et Agent d'Accompagnement Ground Agent and Escort Agent service with 11 qualified agents (TES G H I J K L categories), covering Maneuver Agent, Service, Training, Reconnaissance, and Escort functions.
• RSO (Responsable Sécurité Opérationnelle) Operational Safety Manager service with 14 agents operating on the Horlogers line in Besançon.
• DCC (Demandeur de Consignation Caténaires) Catenary Lockout Requester service with 6 agents (including 2 evaluators), operating at ANMR Section 2 in Corbeil Essonne.

Quantifiable outcome

• 35,400 operator-days secured in 2025
• +4 more outcomes

Named customers12 records

Segments1 record

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators6 records

Recent moves6 records

Expansion highlights4 records

Emerging players

• NGE: Major French multi-disciplinary infrastructure group with rail activity; competes for railway project scopes that include the type of worksite safety staffing Les Sentinelles du Rail provides.
• SNEF: French multi-technical services group with rail-sector electrical works and catenary activity; partial overlap with Les Sentinelles du Rail's PEC (electrical catenary protection) and adjacent railway works.
• TSO (Travaux du Sud-Ouest): French specialist in railway works and catenary, part of NGE; executes rail construction projects on the same SNCF network and uses similar certified safety personnel pools.
• Eiffage Rail: Rail construction arm of Eiffage group, executing rail works and high-speed line projects in France; competes indirectly for railway project safety personnel needs alongside Les Sentinelles du Rail.
• Colas Rail: Major French rail infrastructure contractor; designs and builds railway works for SNCF and is increasingly bundling its own safety operator resources, partially overlapping Les Sentinelles du Rail's worksite-safety scope.
• ETF (Eurovia Travaux Ferroviaires): Eurovia subsidiary specialized in rail infrastructure construction and maintenance in France; potential integrator or competitor for railway worksite safety operator resources.

Direct peers

• Onet: One of France's largest security and facility services groups; deploys trained guarding and safety personnel across multiple verticals including transport infrastructure, directly overlapping with Les Sentinelles du Rail's workforce-deployment model.
• Brink's France: French subsidiary of the global secure-logistics firm; provides manned guarding and protection services to commercial and infrastructure clients in France with a similar staffing-and-deployment model.
• SERIS Group: French-origin security services firm offering guarding, surveillance, and specialized site protection; competes for industrial and infrastructure safety contracts with comparable workforce-deployment economics.
• Securitas France: French arm of global security services leader; provides manned guarding, site security and protection services to industrial/infrastructure clients across France, competing for similar B2B safety operator contracts.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/lessentinellesdurail

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 Les Sentinelles du Rail