What Terideal does

Terideal SASU is a French private company (founded ~1970, headquartered in Wissous, Essonne) operating as the landscaping and public works arm of Groupe Segex. It positions itself as the second-largest landscape company in France, employing approximately 2,800 people across 50 regional agencies. The company combines 40 disciplines spanning landscape architecture, public works, civil engineering, building construction, electrical and energy services, irrigation, agronomy, and ecological management, and delivers projects from design through long-term maintenance under a single multi-disciplinary umbrella.

Its core product set is built around integrated territorial development projects: urban requalification (e.g., Paris 14th arrondissement, Lognes Grand Bassin), civil engineering structures (bridges, retaining walls, multimodal hubs such as Nanterre Université for RATP/SNCF), sports fields and golf courses (natural and synthetic turf, FIFA/World Rugby accredited), green roofs (Lyon Saint-Exupéry), ecological restoration (wetland zones such as Cirque de l'Essonne with SIARCE), and 24/7 urban maintenance. Subsidiary brands — Tarvel, Agrigex, Segex Energies, Mabillon, SEIRS TP, and Terideal Sparfel Normandie — extend coverage across landscape, energy, and trenchless network rehabilitation.

Terideal generates revenue primarily through B2B/B2G project-based contracts and multi-year maintenance agreements with French municipalities, public agencies (Ville de Paris, RATP, SNCF, EPADESA, SIARCE, Paris Vallée de la Marne), and select private enterprises (Groupe SEB, Havre Athletic Club). Pricing is project-quoted; no public pricing exists. Distribution is via direct enterprise field sales through the 50-agency network, supplemented by recruitment-driven employer branding (job dating, careers portal, LinkedIn content). The 2017 fourth MBO of parent Groupe Segex indicates private equity-backed ownership, with consolidation activity continuing in 2026 via new public-sector contract wins.

Name

Terideal

Legal name

Terideal

Website

https://terideal.fr

Company type

Private

Founded year

1970

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Terideal is the second-largest landscape company in France, delivering integrated landscape architecture, public works, civil engineering, and ecological maintenance services across 50 regional agencies to municipalities, public agencies, and select private enterprises.

Ownership category

akta.pro rank

Product category

Landscape Construction and Urban Development Services

NAICS

Landscape Architectural Services (54132), Commercial and Institutional Building Construction (236220)

SIC

Concrete Products, Except Block & Brick (3272)

akta.pro primary industry

Outdoor Kitchens & Living Space Build-Out (Softscape Integration) (HSAIABAH)

akta.pro secondary industry

Concrete Pavers, Hardscape & Retaining Wall Systems (IMADAAAE)

Keywords

• Landscape construction services
• Public works contracting
• Urban development services
• Civil engineering projects
• Green space maintenance

Headquarters

HQ city

Wissous

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Supply Chain, Marketing or Sales

Revenue model

1. Public infrastructure projects: Terideal generates revenue through large-scale public infrastructure and urban development projects for government clients, including landscape architecture, civil engineering, and urban development work.
2. Private enterprise services: Provides comprehensive design, construction, and maintenance services for private companies requiring landscape and environmental management solutions.
3. Ongoing maintenance contracts: Long-term maintenance contracts for public spaces, sports facilities, and green areas providing recurring revenue streams.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels6 records

Core offering

Terideal is a multi-expertise French construction and landscape company that designs, builds, and maintains public infrastructure, urban spaces, sports facilities, and green environments for municipalities, public agencies, and private enterprises. Across 40 synergistic domains of expertise, the company delivers integrated projects spanning public works, civil engineering, landscape architecture, building construction, electrical/lighting systems, irrigation, sports field construction and maintenance, ecological restoration, and 24/7 urban maintenance services.

Product overview

Terideal is a multi-expertise French company providing integrated landscape architecture, urban development, and civil engineering services through 40 domains of expertise. The company operates as a unified service platform combining public works, landscaping, building, and energy services. Core offerings include landscape development and maintenance, sports field construction and upkeep, urban amenities, civil engineering structures, ecological restoration, and urban maintenance services. The company positions itself as a 'regenerative' enterprise reconciling humans with nature through territorial development.

Differentiator

Problem solved

Functional benefit

Products and services

• Aménagements paysagers (Landscape Development) Design, implementation, and maintenance of parks, gardens, and green spaces; positioned as the second largest landscape service offering in France.
• Travaux publics (Public Works)
• Bâtiment (Building Construction and Maintenance)
• Énergies (Energy Services)
• Terrains de sport et golfs (Sports Fields and Golf Courses)
• Aménagements urbains (Urban Development)
• Génie civil et ouvrages d'art (Civil Engineering and Art Structures)
• Entretien des espaces paysagers (Green Space Maintenance)
• Entretien urbain (Urban Maintenance)
• Éclairage public (Public Lighting)
• Toitures végétalisées (Green Roofs)
• Réseaux d'assainissement et eaux pluviales (Sanitation and Stormwater Networks)
• Aménagement et gestion de milieux naturels (Natural Habitat Management)
• Arrosage automatique (Automatic Irrigation)
• Écopâturage (Eco-Grazing)

Quantifiable outcome

• Major projects completed for Paris (requalification, sports facilities, urban development)
• +2 more outcomes

Named customers7 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

Feature4 records

Partnerships

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

• Fonds de dotation De NaturaminorStrategic or Co-development Partner · 1 January 2017Created with Tarvel and SAEE for biodiversity conservation missions. Terideal creates and funds general interest projects favoring biodiversity and environment, particularly in urban and peri-urban spaces.
• SEB GroupminorStrategic or Co-development Partner · 1 January 2017Created Vavilov conservation gardens featuring forgotten vegetable varieties at SEB Group headquarters near Lyon - a pioneering biodiversity project that gained significant media attention.
• Groupe Segex (Parent Company)coreOthersTerideal operates as part of the Groupe Segex, a larger conglomerate of landscaping and civil engineering companies including Segex, Agrigex, Mabillon, Segex Energies, and Tarvel.
• RATPmajorStrategic or Co-development PartnerTerideal subsidiary Segex has developed significant expertise working for RATP on complex infrastructure projects including the Nanterre Université multimodal hub renovation without disrupting daily operations of 48,000 commuters.
• SNCFmajorStrategic or Co-development PartnerOngoing partnership for railway infrastructure projects including civil engineering work for train stations and rail corridors.
• EPADESAcoreStrategic or Co-development PartnerPartnership with EPADESA (Établissement Public d'Aménagement de la Défense Seine Arche) for major urban development projects in western Paris region.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Idverde: Europe's largest landscaping and grounds maintenance services company, operating across the UK, France, Germany, and the Nordics. Directly comparable to Terideal in offering integrated landscape design, construction, and maintenance for public and private clients at scale.
• NGE: French multi-disciplinary contractor spanning civil engineering, earthworks, road networks, and environmental works. Comparable to Terideal in operating across public works, civil engineering, and ecological services with a focus on complex multi-domain projects.
• Pinson Paysage: Major French landscape architecture and public works firm providing parks, urban development, and environmental restoration. Direct peer to Terideal in the French landscaping market with similar public-sector client base.
• Spie Batignolles: French multi-disciplinary construction and civil engineering group operating across public infrastructure, landscape, and energy services. Overlaps with Terideal in public works, urban development, and infrastructure renovation.
• Loiseleur: Established French landscape services company specializing in landscape creation, urban development, and ecological maintenance. Directly comparable to Terideal in serving French municipalities and public infrastructure projects.
• Holder: French landscape and public works company offering integrated landscape architecture, urban development, and maintenance. Operates as a peer in the same regional French market with similar multi-domain positioning.

Broad incumbents

• Vinci Construction: One of the world's largest construction groups with significant presence in French public works, civil engineering, and increasingly urban green infrastructure. Competes with Terideal on large public tenders but operates at much broader scale across all construction categories.
• Bouygues Construction: Major French construction group active in public infrastructure, building, and increasingly sustainable urban development projects. Adjacent competitor to Terideal on complex multi-disciplinary public projects with far broader scope and resources.
• Eiffage Construction: Large French construction and concessions group with capabilities in civil engineering, public works, and increasingly green infrastructure. Overlaps with Terideal on French municipal infrastructure tenders as part of a broader portfolio.
• Colas: French multi-national specializing in road construction, civil engineering, and increasingly ecological infrastructure (rail, urban transport). Adjacent competitor for large public infrastructure tenders and a potential partner or acquirer for mid-tier French players like Terideal.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCz3
• Facebookfacebook.com/Terideal
• LinkedInlinkedin.com/company/terideal
• Pinterestpinterest.com/terideal

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries6 records

Funding overview

Funding rounds1 record

Investors1 record

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 Terideal