What Isi-DSI does

Isi-DSI is a French IT consulting firm founded in 2019 by Sébastien Deldon, an 18-year veteran of Habitat et Humanisme, operating as a SASU headquartered in Civrieux (Ain). The company provides shared executive IT leadership — Directeur des Systèmes d'Information (DSI partagé), Responsable SI (RSI partagé), and Responsable Sécurité SI (RSSI partagé) — deployed on a part-time basis (half-day to two days per week) to organizations that lack the scale or budget to employ full-time IT executives. Its core client base comprises French social, medical-social (ESMS), and health establishments, including associations managing FAM, IME, SESSAD, and DITEP structures, alongside hospitals, clinics, and local authorities.

Beyond fractional C-suite IT services, Isi-DSI delivers AMOA project management (requirements analysis, RFP drafting, vendor selection, deployment oversight, change management), SI diagnostics and strategic roadmaps, software selection consulting (SIRH, DUI, ERP, GTA), and a growing DATA/AI advisory practice. The company has built a proprietary platform, Isi-APP, a French-built IT management tool covering ticketing, automated inventory via OCS, documentation, Azure AD-synchronized user management, and a multi-tenant portal for managed service providers. Isi-APP was selected as a pilot for the Agence du Numérique en Santé (ANS) Health Directory API using FHIR, and includes RPPS/FINESS reconciliation modules tailored to the French health system. A second platform, HospiConnect, extends the offering to hospital SI governance with NIS2-focused dashboards and alerting.

The business model is professional services-led, priced on retainer or per-engagement monthly contracts, with consulting as the primary revenue engine and Isi-APP/HospiConnect serving partly as delivery tooling and partly as a standalone product. Distribution is direct sales to association directors, CODIRs, and managing organisms (OG), heavily amplified by referral partnerships with URIOPSS regional federators and the SIP-ESMS cooperative (launched 2025 with URIOPSS ARA and Trustteam France). Geographic reach currently spans Auvergne-Rhône-Alpes, Bourgogne-Franche-Comté, PACA, and Occitanie, with the firm claiming engagement of approximately 650 ESMS establishments across roughly 80 managing organisms since 2021.

Name

Isi-DSI

Legal name

Isi DSI

Website

https://isi-dsi.fr

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

11–50 employees

Short description

Isi-DSI is a French IT consulting firm providing part-time shared DSI, RSI, and RSSI executive services, AMOA project management, and SI diagnostics to social, medical-social, and health organizations, complemented by its proprietary Isi-APP IT management platform and SIP-ESMS mutualization cooperative.

Ownership category

akta.pro rank

Product category

IT Consulting Services

NAICS

Computer Systems Design and Related Services (54151), Computer Facilities Management Services (541513), Custom Computer Programming Services (541511)

SIC

Services-Computer Integrated Systems Design (7373)

akta.pro primary industry

Application Maintenance & Support (AMS) (BPAEAFAC)

akta.pro secondary industry

IT Asset Management (ITAM) Platforms (HDAEALAD)

Keywords

• Shared CIO consulting
• Medical-social IT services
• IT governance advisory
• Digital transformation consulting
• Healthcare IT management

Headquarters

HQ city

Civrieux

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. Part-time IT Executive Services (DSI/RSI/RSSI partagé): Isi-DSI provides part-time DSI, RSI, and RSSI services to client organizations, priced by time allocation (from half-day to 2 days per week). Revenue is recurring based on ongoing retainer agreements for shared IT leadership.
2. AMOA / Project Management Consulting: Project-based consulting for SI projects including software selection, cahier des charges, deployment oversight, and change management. Revenue recognized per project milestone or engagement.
3. IT Diagnostic and Strategic Planning: SI diagnostic, audit, and strategic roadmap development services for client organizations, including eligibility assessment for government funding programs (ESMS Numérique, CaRE, HOP'EN).

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

Isi-DSI is a French IT consulting firm that provides part-time shared CIO/CTO services (DSI, RSI, RSSI partagés), AMOA project management, IT diagnostics and roadmaps, software selection, IT mutualization, and DATA/AI consulting to associations, social, medical-social (ESMS), and health organizations. The company complements its consulting with proprietary software products, notably Isi-APP (a French IT management and documentation platform) and HospiConnect (hospital SI governance), operated via the SIP-ESMS cooperative in partnership with URIOPSS and Trustteam France.

Product overview

Isi-DSI operates as an IT consulting company with two main offerings: consulting services and software products. The consulting arm provides shared DSI services (DSI/RSI/RSSI Partagé), project management (Chef de Projet AMOA), IT diagnostics and roadmaps, software selection consulting, IT mutualization services, and DATA/AI consulting for healthcare and social sector clients. The software portfolio centers on Isi-APP, a French IT management platform that includes ticketing/ITSM, automated asset inventory (OCS), technical documentation, user management with Azure AD sync, multi-tenant portals for service providers, and ISi-YOUZER for onboarding automation. Isi-APP also includes a RPPS/FINESS synchronization module developed as a pilot integration with the Agence du Numérique en Santé API using FHIR. A related product, HospiConnect, is a dedicated healthcare SI management platform for hospital DSI governance. These products are offered alongside mutualized SI services through the SIP-ESMS partnership with URIOPSS.

Differentiator

Problem solved

Functional benefit

Brands

• Isi-APP: A French application designed by and for IT managers (DSI) that centralizes essential tools including ticketing, IT documentation, inventory management, and user management for social and medico-social structures.

Products and services

• DSI / RSI / RSSI Partagé Part-time shared IT director (DSI), IT manager (RSI), and security officer (RSSI) services, delivered from half a day to 2 days per week; includes IT strategy development, budget management, project portfolio oversight, vendor management, and regulatory compliance support for social, medical-social, and health organizations.
• Chef de Projet AMOA / Responsable Applicatif Part-time AMOA project management for IT system implementation: application mapping, needs analysis, cahier des charges drafting, vendor coordination, change management, and steering of project portfolios for healthcare and social sector clients.
• Diagnostic SI et Feuille de Route SI IT system diagnostic, audit, and schéma directeur (strategic roadmap) service that produces an objective and financial assessment of the existing IS and an action plan aligned with organizational strategy, including eligibility assessment for government programs (ESMS Numérique, CaRE, HOP'EN).
• Aide au Choix Logiciel Software selection consulting covering needs analysis, RFP drafting, solution benchmarking, contract negotiation, pilot deployment, and user training for SIRH, accounting, payroll, GTA, electronic invoicing, DUI, and ERP systems.
• Aide au Choix Prestataire Informatique IT provider selection consulting covering Microsoft 365 migration, infogérance changes, network evolution, and cybersecurity improvements, including cahier des charges drafting and end-to-end project follow-up.
• Sécurité (Cybersecurity Consulting)

Quantifiable outcome

• Isi-DSI reduced manual data entry errors by 40% for one association through optimized software selection aligned with internal processes.
• +1 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration11 records

AI capability6 records

Feature6 records

Partnerships

Five partnerships are on record, tiered core, major and minor.

• SIP-ESMS (Service Informatique Partagé pour les ESMS)coreStrategic or Co-development Partner · 1 January 2021SIP-ESMS is a cooperative structure (association loi 1901) initiated by URIOPSS Auvergne-Rhône-Alpes and operated in partnership with Isi-DSI. It provides shared IT services to small and mid-sized ESMS that cannot individually finance dedicated IT leadership. Isi-DSI serves as the operational and methodological coordinator, providing DSI shared services, AMOA, and technical infogérance in partnership with Trustteam France. The SIP-ESMS enables structures to access shared DSI expertise and qualify for government funding programs (ESMS Numérique).
• URIOPSS Auvergne-Rhône-Alpes, PACA, and OccitaniecoreStrategic or Co-development PartnerURIOPSS regional bodies serve as federators of medical-social sector needs across Auvergne-Rhône-Alpes, Provence-Alpes-Côte d'Azur, and Occitanie. These partnerships enable Isi-DSI to reach a broad network of sector organizations and align its services with regional sector priorities. The URIOPSS ARA initiated the SIP-ESMS cooperative. URIOPSS bodies help promote Isi-DSI's shared SI services to their member associations and establishments.
• Trustteam FrancemajorImplementation/ SI/ Consulting PartnerTrustteam France provides infogérance (technical management and support) as part of the SIP-ESMS shared IT service offering. As the technical partner, Trustteam France handles day-to-day IT operations, security, and maintenance for member establishments, complementing Isi-DSI's strategic and governance role.
• SolidatechminorChannel Partner/ Reseller/ DistributorSolidatech is a technology provider offering IT equipment and solutions to associations and non-profits, often at subsidized rates. Isi-DSI's partnership with Solidatech enables it to recommend equipment solutions to clients and access Solidatech's catalog of subsidized technology offerings for the associative sector.
• Colibri Consulting (Didier Corcelette)majorStrategic or Co-development PartnerColibri Consulting, led by Didier Corcelette, joined Isi-DSI as an associated partner in September 2023, bringing extensive experience in medical-social sector IT (software publisher, infogérance, and AMOA sides) and specialization in SIRH, GTA, and Finance software AMOA. Didier became an associate participating in Isi-DSI's strategy.

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Devoteam: French-origin IT consulting firm with strong public-sector and healthcare credentials in France, focused on cloud and digital transformation. Comparable to Isi-DSI as a digital strategy and managed IT services provider targeting French public and health-sector clients, though at much larger scale.
• CGI France: Global IT consulting and systems integration firm with a strong French public-sector and health practice. Comparable as a broad-based provider of IT consulting, managed services, and digital transformation to French health and social-sector organizations, though at significantly larger scale than Isi-DSI.
• Sopra Steria: Large French-headquartered IT services and systems integration group with a dedicated health and public-sector practice. Comparable as a competing provider of IT consulting and digital transformation services to French healthcare and social-sector organizations, but at vastly larger scale and broader scope.
• Hardis Group: French IT services and software publishing company with a healthcare and public-sector vertical delivering SI consulting, application services, and managed infrastructure. Comparable as a French-headquartered IT consulting firm serving regulated public and health clients, with broader portfolio including its own software products.
• Capgemini: Global IT services firm with a significant French public-sector and healthcare practice delivering digital transformation, application services, and managed IT. Overlaps with Isi-DSI's IT consulting and systems integration work for French health and social organizations, but operates at a vastly larger scale with broader industry coverage.

Others

• Cegid: French SaaS vendor of HR, payroll, and ERP solutions widely used by associations and ESMS structures. Comparable as an ecosystem software provider frequently evaluated in Isi-DSI's software-selection engagements, addressing the same French social-sector buyer base with cloud business applications.
• Silae: French cloud HR and payroll software (SIRH/paie) serving SMEs, associations, and ESMS organizations — a category Isi-DSI frequently recommends and implements via its "Aide au choix logiciel" service. Comparable as a software ecosystem player addressing the same French association/ESMS buyer base with SaaS HR and payroll products.

Direct peers

• Enovacom (Dedalus Group): French healthcare data interoperability and integration specialist, now part of Dedalus Group, focused on EHR data exchange, HL7/FHIR integration, and hospital SI consulting. Comparable as a French vendor combining healthcare-specific IT consulting with proprietary platform components (data integration, directory reconciliation) for the same buyer base.
• Maincare Solutions: French healthcare IT solutions provider delivering SI consulting, application hosting, and digital transformation services to hospitals and ESMS organizations. Directly comparable as a specialized IT services and platform partner for the French healthcare and medical-social sector that Isi-DSI also targets.
• Weliom: French digital services company specialized in healthcare and medical-social sector digital transformation (schéma directeur, DUI, ESMS Numérique). Direct peer to Isi-DSI in delivering ESMS digitization consulting, software selection, and project management to associations and medico-social establishments.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/watch?v=uoktBKQxiF8&ab_channel=Isi-APP
• LinkedInlinkedin.com/company/isi-dsi

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 records

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 Isi-DSI