SSTRN

What SSTRN does

Ataviti (formerly SSTRN – Service Social du Travail de la Région-Nord) is a non-profit employer association, constituted under the French loi du 1er juillet 1901 and headquartered in Marcq-en-Barœul, Hauts-de-France. Founded in 1935, it provides occupational health and social support services to enterprise members and their employees across the region, organized around four pillars: social, physical, mental, and financial health. The association is reported to be the only organization covering all five departments of Hauts-de-France with a full social-health continuum.

Its service offering is delivered by 120 state-certified professionals (social workers, psychologists, occupational physicians, and prevention specialists) bound by professional secrecy, and includes roughly 60,000 accompaniments and 24,000 intervention-days annually. The current product surface extends beyond traditional in-person social support into a telephone access platform ("Trait d'Union," launched 2025), a member-community platform ("La Ruche," launched June 2025), and an advisory/financing arm ("Pôle Conseil et Financement" and "SSTRN Conseil," launched 2024) which as of May 2025 includes a real-estate financing service. The organization is member of the RESSIF national network and holds the LUCIE 26000 CSR label (renewed 2025 for four years), an indicator of certified social-responsibility practices.

The commercial model is membership-based: 230 enterprise members pay recurring contributions in exchange for access to the association's services for their workforce. The entity serves approximately 22,000 employees per year across a member roster that spans pharmaceuticals (GSK, AstraZeneca), automotive (Renault), retail (Auchan, Kiabi), food (McCain, Häagen-Dazs, Tereos), steel (ArcelorMittal), construction (Eiffage), rail (Alstom, Keolis), technology (IBM), research (INSERM, CNRS), insurance (AG2R), banking (Caisse d'Epargne), and healthcare (Ramsay Santé). In 2025 the organization rebranded from SSTRN to Ataviti to reflect its broadened, multi-pillar positioning.

Name

SSTRN

Legal name

Service Social du Travail de la Région-Nord (SSTRN)

Website

https://sstrn.com

Company type

Private

Founded year

1935

Operating status

Operating

Headcount range

101–250 employees

Short description

Ataviti (formerly SSTRN) is a French non-profit association founded in 1935 providing occupational health services across social, physical, mental, and financial health pillars to 230 enterprise members and approximately 22,000 employees annually in Hauts-de-France, delivered by 120 certified professionals.

Ownership category

akta.pro rank

Product category

Occupational Health Services

NAICS

Business Associations (813910), Vocational Rehabilitation Services (6243), Labor Unions and Similar Labor Organizations (81393)

SIC

Services-Membership Organizations (8600), Services-Social Services (8300), Services-Health Services (8000)

akta.pro primary industry

Worksite Financial Wellness & Employee Assistance Programs (EAP) (FSAIAMAN)

Keywords

• Occupational health services
• Workplace wellbeing programs
• Employee assistance programs
• Psychosocial risk prevention
• Occupational social work

Headquarters

HQ city

Marcq-en-baroeul

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Membership/Association Fees: SSTRN is an association d'entreprises (employer association) created in 1935. Companies pay membership fees to become 'adhérents' and gain access to the full suite of occupational health services including social work assistance, occupational health nursing, workplace psychology, financial health advisory, and training. The membership model provides recurring, predictable revenue and locks in enterprise clients through multi-year relationships.
2. Professional Services and Consultancy: SSTRN provides billable professional services including individualized social work accompaniment, psychological support, financial health consulting (via SSTRN Conseil), training sessions, and awareness workshops delivered at member companies. These are bundled within membership or charged as additional services.
3. Training and Sensitization Services: Trainers use interactive and innovative materials, including an online training platform, to deliver occupational health, QVCT, RPS, and financial health training to member companies' employees. Training is delivered in-person or remotely via webcasts.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels8 records

Core offering

SSTRN (Ataviti) is a French non-profit employer association founded in 1935 that delivers occupational health and social services to enterprises and their employees across the Hauts-de-France region. Its offering is built on four integrated pillars — social health (occupational social work), physical health (occupational nursing), mental health (workplace psychology), and financial health (budget counseling) — supplemented by training, awareness programs, a telephone follow-up platform (Trait d'Union), and a community exchange space (La Ruche). Member companies pay annual dues and gain access to a multidisciplinary team of 120 state-certified professionals delivering on-site interventions, individual accompaniments, diagnostics, and emergency aid.

Product overview

Ataviti (SSTRN) offers a unified occupational health and social services platform providing four integrated pillars: social health (occupational social work), physical health (occupational nursing), mental health (work psychology), and financial health (budget counseling). The core offerings are supplemented by specialized modules including the Pole Conseil et Financement for financial advisory and credit consolidation, emergency assistance fund, telephone support platform Trait d'Union, and La Ruche community. The service integrates professional expertise across Hauts-de-France, delivered through on-site interventions, remote consultations, training, and awareness programs, all supported by a multidisciplinary team of 120 professionals serving 230 member companies and 22,000 employees annually.

Differentiator

Problem solved

Functional benefit

Brands

• SSTRN Conseil: Financial advisory service offering budget counseling, credit consolidation, and real estate financing assistance for employees of member companies.
• Trait d'Union

Quantifiable outcome

• 22,000 employees accompanied annually across physical, mental, social, and financial health domains
• +4 more outcomes

Named customers20 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Nine partnerships are on record, tiered minor, secondary and core.

• Marine Morel / Cité de l'IA (Intelligence Artificielle)minorStrategic or Co-development Partner · 1 January 2025SSTRN partnered with Marine Morel from the Cité de l'IA to deliver an AI awareness session to its team during the 2025 General Assembly, demonstrating a commitment to ongoing team training and technological literacy.
• CREHPSY Hauts-de-FrancesecondaryStrategic or Co-development Partner · 1 January 2022CREHPSY Hauts-de-France is a regional organization dedicated to mental health and employment. SSTRN partnered with CREHPSY to deliver a webinar on maintaining employment for people with psychosocial disabilities during the SEEPH 2022 (European Week for Employment of Disabled Persons).
• RESSIF (Réseau National d'Accompagnement Social et de Santé en Entreprise)coreStrategic or Co-development PartnerRESSIF is the first national network for occupational social and health support in companies, organized as an Economic Interest Group (GIE) with eleven regional structures. SSTRN is part of this network, enabling it to serve national multi-site companies with consistent service quality across all of France.
• CARSAT Hauts-de-FrancecoreStrategic or Co-development PartnerCARSAT (Caisse d'Assurance Retraite et de la Santé au Travail) is an institutional partner of SSTRN. The partnership enables coordination on occupational health, retirement, and social protection matters for employees in the Hauts-de-France region.
• Scènes sur mesureminorImplementation/ SI/ Consulting PartnerSSTRN collaborated with Scènes sur mesure, a theatrical company, to deliver interactive animations illustrating psychosocial risks during the 2025 General Assembly. Two comedians performed scenarios representing real workplace situations alongside SSTRN psychologists.
• Entreprises et CitéscoreStrategic or Co-development PartnerEntreprises et Cités is the campus/business park where SSTRN's headquarters are located at 40 rue Eugène Jacquet, Marcq-en-Baroeul. The campus hosts multiple businesses and serves as a collaborative business ecosystem for regional enterprises.
• AGEFIPHsecondaryStrategic or Co-development PartnerAGEFIPH (Association de Gestion du Fonds pour l'Insertion Professionnelle des Personnes Handicapées) is a national partner supporting the employment of people with disabilities. SSTRN collaborates with AGEFIPH on disability inclusion initiatives and RQTH procedures for member companies' employees.
• CIDFF (Centre d'Information sur les Droits des Femmes et des Familles)secondaryStrategic or Co-development PartnerCIDFF provides legal information and support related to women's and family rights. SSTRN partners with CIDFF to address social and family-related challenges faced by employees of member companies.
• ANDESsecondaryStrategic or Co-development PartnerANDES (national network of entrepreneurs) is listed as a partner organization supporting SSTRN's mission in the field of occupational health and social services.

Scale indicators7 records

Recent moves9 records

Expansion highlights6 records

Emerging players

• Modern Health: US-based global digital mental health and EAP platform serving employers with virtual therapy, coaching, and wellness — represents the digital-first competitive threat to traditional in-person occupational health and psychosocial risk services like SSTRN.
• TELUS Health (LifeWorks): Global digital health and EAP provider (formerly LifeWorks) offering employee assistance programs, mental health, and wellbeing services to multinational employers — competes for global EAP wallet share against regional players like SSTRN.

Broad incumbents

• Klesia: French employee benefits and social protection group offering health, retirement, and prévoyance services to enterprises — comparable customer base of HR leaders and risk-bearing alternative to SSTRN's mutualized service model.
• AG2R La Mondiale: Major French social protection group (and a current SSTRN member) providing health insurance, retirement, and employee welfare services to enterprises — operates as a broad incumbent in the same employer-sponsored health and welfare category.
• Malakoff Humanis: Major French group health insurance and social protection provider offering health, prévoyance, and employee benefit services including EAP-like offerings — adjacent incumbent serving overlapping enterprise customers with broader insurance and benefits portfolio.
• Présanse: National federation of French occupational health services (Services de Santé au Travail Interentreprises), representing 200+ SSTIs across France — the industry umbrella for SSTRN's category, providing governance, standards, and advocacy that shape the regulatory environment.

Direct peers

• APST BTP-RP: French inter-company occupational health service specialized for the construction sector, operating on the same SSTI membership model with multidisciplinary occupational health teams serving enterprise members.
• CIAMT: French inter-company occupational health service (Service de Santé au Travail Interentreprises) providing similar multidisciplinary occupational health, social work, and prevention services to enterprise members — directly comparable to SSTRN's membership-based SSTI model.
• AGESTRA: French inter-company occupational health service (SSTI) serving enterprises across France with occupational health nursing, social work, and prevention programs — same regulatory and membership-based service model as SSTRN.

Regional players

• Groupe Up: French cooperative group offering worksite benefits including employee wellness, purchasing power, and quality-of-life-at-work solutions — comparable in serving employer-sponsored quality-of-life initiatives, primarily French and Belgian geographies.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat7 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCLyWuCKUjYtj5mY85LSHC7w
• LinkedInlinkedin.com/company/s-s-t-r-n
• Xx.com/SSTRN_
• Facebookfacebook.com/100069418210075

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

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 SSTRN