SDEL Grands Projets Immobiliers

What SDEL Grands Projets Immobiliers does

SDEL Grands Projets Immobiliers (SDEL GPI) is a French electrical installation contractor specializing in large-scale tertiary real estate projects across the Île-de-France region. The company operates as a wholly-owned subsidiary of SDEL Tertiaire SAS, itself part of the VINCI Energies group, and is one of five coordinated entities (alongside SDEL IMTEC, SDEL ITT Concilio, SDEL ITT Evolium, and SDEL TEKNICA) delivering complementary electrical specialties. SDEL GPI's core technical offering covers strong-current installations (HT/MT supply, transformer stations, TGBTs, generators, UPS, distribution, and LED lighting) and weak-current building protection (SSI, access control, intrusion detection, CCTV, GTB), supported by an in-house execution engineering bureau that maintains end-to-end control from design to commissioning.

The company's commercial model is B2B project-based, with revenue generated through competitive tendering (Appel d'Offres) and direct negotiation with property developers, asset managers, and corporate tenants. Notable reference projects include Tour Hekla at La Défense (€7.4M, 80,000 m², 220m tower), the BiOME rehabilitation for SFL (€6.1M), the La Jonction Orly airport complex (€16.5M at group level), and ongoing multi-building engagements for Société Générale. Customer concentration spans commercial real estate developers (VINCI Immobilier, AG Real Estate/Hines, Nexity, BNP Paribas Immobilier), airport operators (ADP), financial institutions (Société Générale, BNP Paribas Cardif, AG2R La Mondiale, Banque de France), and corporate end-users (BCG, Orange, Novartis, Sagemcom).

Within the SDEL Tertiaire group, SDEL GPI acts as the lead entity for high-rise (IGH) and airport projects, frequently partnering with sister entities SDEL IMTEC (systems integration) and SDEL ITT Evolium (generalist electrical with VDI/POL expertise) under multi-lot group arrangements. The company benefits from VINCI Energies' procurement leverage, bonding capacity, and referral network, but reports no independent revenue and operates exclusively within the Île-de-France region without disclosed geographic expansion plans.

Name

SDEL Grands Projets Immobiliers

Legal name

SDEL Tertiaire

Website

https://sdel-tertiaire.fr

Company type

Private

Founded year

1985

Operating status

Operating

Headcount range

11–50 employees

Short description

SDEL GPI is a VINCI Energies-affiliated French electrical contractor specializing in high-rise, airport, and large-scale tertiary real estate installations across the Île-de-France region, serving property developers, asset managers, and corporate end-users.

Ownership category

akta.pro rank

Headquarters

HQ city

Nanterre

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Electrical Installation Contracts (Neuf & Réhabilitation): SDEL GPI generates revenue primarily through one-time project-based contracts for the installation of electrical systems (CFO) and building protection (Cfa) in commercial real estate projects. Contracts are awarded via competitive tendering (Appel d'Offres) or direct negotiation with property developers, asset owners, and tenants. Projects range from new construction (travaux neufs) to heavy rehabilitation (restructuration lourde) and fit-out (aménagement). Revenue is recognized upon project completion and delivery.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels4 records

Core offering

SDEL Grands Projets Immobiliers is a French electrical installation contractor specializing in strong current (Courants Forts / CFO) and weak current (Courants Faibles / Cfa) systems for large-scale commercial real estate projects in Île-de-France. The firm executes electrical works for high-rise buildings (IGH), airport infrastructure, and tertiary sites, supporting property developers, asset managers, financial institutions, insurance firms, healthcare/research facilities, and the airport operator ADP. It operates from Nanterre with 47 collaborators as of 2024 and is positioned within the SDEL Tertiaire network of VINCI Energies.

Product overview

SDEL Tertiaire is a generalist installation company specializing in electrical engineering (strong currents), building protection (weak currents), and Smart Building (VDI cabling) for the commercial office real estate sector. The company operates as a unified group comprising five specialized subsidiaries: SDEL GPI (large-scale projects including high-rise buildings and airports), SDEL IMTEC (systems integration for building protection and smart building), SDEL ITT CONCILIO (weak current systems), SDEL ITT EVOLIUM (generalist electrical with VDI expertise), and SDEL TEKNICA (technical installations in occupied environments). Together they provide comprehensive services from high voltage power supply to building management systems, security, and network cabling.

Differentiator

Problem solved

Functional benefit

Products and services

• Strong Current Electrical Installation (CFO / Courants Forts)

Quantifiable outcome

• Delivery of 48,929 m² office complex (Tour Trinity, La Défense) on schedule and within €3.268M budget.
• +3 more outcomes

Named customers24 records

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Five partnerships are on record, tiered core and minor.

• VINCI EnergiescoreOthersSDEL Tertiaire (parent of SDEL GPI) is a wholly-owned subsidiary of VINCI Energies. VINCI Energies is a global leader in energy and digital transformation, providing SDEL Tertiaire with the group's brand, financial backing, procurement scale, and cross-entity project referral opportunities. SDEL Tertiaire celebrated 100+ years of existence under the VINCI umbrella.
• Fondation VINCI pour la CitéminorOthersSDEL Tertiaire partners with the VINCI corporate foundation, which supports social and professional integration initiatives. The foundation provides €12,000 on average per supported project, along with volunteer 'parrain' (mentor) support from VINCI group employees. SDEL Tertiaire employees can participate as mentors to supported associations.
• SDEL IMTECcoreStrategic or Co-development PartnerSDEL IMTEC (55 collaborators, €15M+ revenue) is the weak-current systems integration specialist within SDEL Tertiaire. SDEL GPI frequently partners with SDEL IMTEC on multi-discipline projects, with SDEL IMTEC handling CFA/SSI/GTB/VDI lots while SDEL GPI handles CFO lots. Both companies share the same parent and operate as a coordinated group on large contracts.
• SDEL ITT EVOLIUMcoreStrategic or Co-development PartnerSDEL ITT EVOLIUM (32 collaborators) is a generalist electrical installer specializing in CFO and CFA works for tertiary offices, logistics warehouses, and higher education. Partners with SDEL GPI on multi-lot projects and operates as an independent contractor on its own assignments. Known for innovative VDI solutions including Passive Optical LAN (POL) and EcoFlexIT.
• SDEL TEKNICAminorStrategic or Co-development PartnerSDEL TEKNICA (26 collaborators, €8.5M revenue in 2024) is an electrical contractor specializing in technical installations in occupied environments, with expertise in EV charging, LED retrofit, and photovoltaics. Can partner with SDEL GPI on specialized technical lots or operate independently on smaller assignments.

Scale indicators5 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• SNEF: French multi-trade electrical contractor (strong and weak current, instrumentation) serving industrial, tertiary, and infrastructure clients — direct competitor on similar B2B tenders with comparable CFO/Cfa/VDI offering.
• ENGIE Solutions: ENGIE Group subsidiary (formerly integrating INEO, SADE, etc.) providing electrical contracting, energy efficiency, and building services across France. Direct competitor for tertiary and IGH electrical installation projects.
• Bouygues Energies & Services: Bouygues Group's energy services arm providing multi-technical installation, facility management, and energy services for commercial and industrial clients in France — direct comparable in scope and customer base.
• Eiffage Energie Systèmes: Eiffage Group's electrical engineering and energy systems subsidiary, with a strong tertiary/building and high-voltage practice. Directly comparable given overlapping service scope (CFO/Cfa) and similar target customers (developers, asset owners, large enterprises).
• Cegelec: VINCI Energies sister subsidiary specializing in electrical and HVAC infrastructure for buildings, industry, and energy. Operates under the same parent as SDEL GPI and competes for similar commercial-building electrical contracts nationally and across the Île-de-France market.
• SPIE SA: Major French multi-technical services group providing electrical, mechanical, and digital installation services for buildings, energy, and infrastructure across France — directly competing for the same tertiary, IGH, and infrastructure electrical installation tenders as SDEL GPI.

Broad incumbents

• GTIE: VINCI Energies subsidiary focused on industrial and infrastructure electrical/automation projects rather than tertiary commercial real estate. Same parent group as SDEL GPI; broader industrial footprint makes it a close incumbent within the same VINCI umbrella.
• VINCI Facilities: VINCI Group subsidiary providing facility management, multi-technical maintenance, and energy services for tertiary real estate across France. Sister entity within VINCI offering a broader post-construction services portfolio that intersects with SDEL GPI's installed base.

Emerging players

• Fauché: Mid-size independent French electrical contractor offering CFO, Cfa, and VDI services for tertiary, industrial, and energy clients — comparable service model and customer profile at a smaller scale, often competing on similar regional tenders.
• SPIE ICS: SPIE subsidiary dedicated to digital services, smart building, and ICT infrastructure. Comparable on the Smart Building / VDI and building management line that SDEL GPI pursues through SDEL ITT EVOLIUM and SDEL IMTEC.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/sdel-grandsprojetsimmobiliers

Compliance17 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries5 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 SDEL Grands Projets Immobiliers