Les Rondeaux, paysagistes urbanistes

What Les Rondeaux, paysagistes urbanistes does

Les Rondeaux, paysagistes urbanistes is a Paris-based cooperative (société coopérative) landscape architecture and urban planning firm founded in 2013 by Stéphane Mercier and Tanguy Colas des Francs. The firm operates with a deliberate sub-10 headcount policy, delivering four interconnected service lines: (1) operational design-build missions (maîtrise d'œuvre opérationnelle) covering public space, urban renewal, and landscape construction supervision; (2) advisory and study missions (conseil et étude) including urban studies, landscape atlases, and participatory diagnostics; (3) tree patrimony diagnostic services via the Atelier de l'Arbre, applying Visual Tree Assessment (VTA) and Quantified Tree Risk Assessment (QTRA) methodologies; and (4) academic teaching at ESAJ and the École d'Urbanisme de Paris, where Mercier co-directs the Master 2 Environnements Urbains.

The firm's revenue model is professional services–based, acting either as mandataire (lead contractor) on direct orders, consulting missions, and public commissions, or as specialist co-contractor within multidisciplinary teams that pair them with architects, urbanists, and engineering firms (VRD, environment, cartography/SIG). Customer base is overwhelmingly public sector — municipalities (Paris, Marines, La Courneuve, Châlons-en-Champagne), departments (Val d'Oise, Seine-et-Marne), agglomerations (Creil Sud Oise, Grand Paris Sud), and public housing operators (Plaine Commune Habitat, OPH Montreuillois) — with a small number of private clients. Geographic scope is intentionally constrained: construction supervision within a 2-hour drive radius of Paris, study missions across the northern half of France, with sporadic extensions when working as a sub-contractor to an external mandataire.

The firm carries forward a scenographic heritage from co-founder Michèle Elsaïr's theatrical and cinema set design background, applying it to public space design philosophy. Operational focus is on vegetation management, construction feasibility, and territorial continuity. The firm emphasizes single-interlocutor continuity from project inception through construction supervision, and integrates participatory approaches with local stakeholders. No external funding, parent company, or scaling actions are evident; the cooperative structure and small scale are deliberate strategic choices rather than transitional constraints.

Name

Les Rondeaux, paysagistes urbanistes

Legal name

Les Rondeaux

Website

https://lesrondeaux.fr

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

1–10 employees

Short description

Les Rondeaux is a Paris-based cooperative landscape architecture and urban planning firm (founded 2013, <10 employees) delivering operational design-build, advisory, tree patrimony diagnostics (VTA/QTRA), and academic teaching services primarily to French municipalities, departments, and public housing operators within a 2-hour radius of Paris.

Ownership category

akta.pro rank

Product category

Landscape Architecture and Urban Planning Services

NAICS

Landscape Architectural Services (54132), Surveying and Mapping (except Geophysical) Services (541370)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Landscape Architecture & Site Design (BPAHAKAC)

akta.pro secondary industries

Regional & Land Use Planning (BPAHAKAE), Landscape Construction Project Management & General Contracting (HSAIABAK), Community Engagement & Participatory Planning (BPAHAKAO)

Keywords

• Landscape architecture services
• Urban planning services
• Arboricultural diagnostics
• Territorial landscape studies
• Public space design

Headquarters

HQ city

Paris

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, Others

Revenue model

1. Operational Design-Build Missions (Maîtrise d'Œuvre Opérationnelle): Primary core business. Full knowledge of technical and organizational stages of project advancement in relation with multidisciplinary teams. Follows construction sites involving various trades, from ironwork to VRD civil engineering, furniture, lighting, acoustics, and vegetation.
2. Advisory and Study Missions: Urban studies, consulting missions, diagnostics, and territorial management advisory for private individuals, architect-urbanists, and local authorities. Uses varied graphic tools and participatory approach with local actors to make existing stakes on sites comprehensible.
3. Teaching and Training: Since 2013, the firm combines professional practice with teaching at landscape schools (ESAJ), and the Urban Planning School of Paris (Master 2 'Environnements Urbains'). Stéphane Mercier is co-pedagogical director of the Master 2.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Les Rondeaux is a landscape architecture and urban planning firm providing operational design-build missions (maîtrise d'œuvre opérationnelle) covering design, technical specification, and construction supervision for public spaces, parks, gardens, and urban streetscapes. It also delivers advisory and study missions (urban studies, diagnostics, territorial planning), specialized arboricultural diagnostics using VTA and QTRA methodologies, and teaching at landscape and urban planning schools. Work is delivered for public sector clients (municipalities, departments, agglomerations, public housing) and selected private clients across northern France.

Product overview

Les Rondeaux is a landscape architecture and urban planning firm founded in 2013 as a cooperative with fewer than 10 employees. The company operates as a unified service practice offering four interconnected service lines: (1) Maîtrise d'œuvre opérationnelle - operational design-build services for landscape and urban projects including civil engineering coordination; (2) Conseil et étude - advisory, diagnostic, and urban study services with participatory approaches; (3) Atelier de l'arbre - specialized arboricultural diagnostics using VTA and QTRA methodologies; and (4) Enseignement - educational collaborations with ESAJ and Ecole d'Urbanisme de Paris. Their project portfolio spans multiple typologies including agro-forestry parks, public gardens, urban landscape atlases, landscape charters, and residential neighborhood designs, working primarily within 2 hours of Paris and across northern France.

Differentiator

Problem solved

Functional benefit

Products and services

• Maîtrise d'œuvre opérationnelle (Operational Design-Build Services)

Quantifiable outcome

• Projects span over 25 completed and ongoing commissions across municipalities, agglomerations, and private clients in the Paris region and northern France
• +1 more outcomes

Named customers13 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

Feature1 record

Partnerships

13 partnerships are on record, tiered core and minor.

• Atelier de l'ArbrecoreStrategic or Co-development PartnerWilliam Moore's Atelier de l'Arbre provides continuing education for the firm's team in tree diagnostic methodology. The firm has developed its arboricultural diagnostic approach (VTA/QTRA) through this training, which is central to their tree patrimony services.
• Urban ActminorStrategic or Co-development PartnerCollaborated on the Paris Quartier Paul Bourget urban renewal project (2023) alongside Michèle Elsaïr, Les Rondeaux, Projex, and Diagobat.
• ZA Studio / Michèle Elsaïr / Seebat / ViaTech'minorStrategic or Co-development PartnerTeam collaboration on the Louviers Villa Calderon garden project (2008) in partnership with ZA Studio, Michèle Elsaïr, Seebat, and ViaTech'.
• DS Studio / Clément GuillaumeminorStrategic or Co-development PartnerCollaboration with architect DS Studio and Clément Guillaume on the Pierrefitte Les Joncherolles residential project (2015).
• Tracks / JLR / ITAC / Ateve / Guillaume AmatminorStrategic or Co-development PartnerMultidisciplinary team collaboration on the Perthes-en-Gâtinais La Ruche school project (2019) including Tracks architecture, engineering firms JLR, ITAC, and Ateve, with Guillaume Amat as landscape lead.
• Archi Ethic / Lipsky RolletminorStrategic or Co-development PartnerCollaboration with Archi Ethic and Lipsky Rollet architecture firms on the Montreuil Boissière Acacia public housing redesign (2020).
• ServicadminorStrategic or Co-development PartnerOngoing collaboration with Servicad on multiple projects including La Courneuve Rue Babcock (2019) and La Courneuve Quartier Nord (2021).
• EnviroscopminorStrategic or Co-development PartnerCollaboration with Enviroscop on the Agglomération Seine Eure Landscape and Biodiversity Charter (2017).
• Anne Marion-Gallois Cie MagriffminorStrategic or Co-development PartnerPartnership with Anne Marion-Gallois and her performing arts collective for an artistic residence on the theme of garden and biodiversity in the Parc du Vexin Français (2018), resulting in the pluridisciplinary show 'Impromptu au Jardin'.
• Michel Collin / Michèle Elsaïr / BIOTOPE / HTCminorStrategic or Co-development PartnerCollaboration on the Forêt de Ferrières diagnostic project (2012) with Michel Collin, Michèle Elsaïr, and ecology firms BIOTOPE and HTC.
• Agglomération Creil Sud OiseminorStrategic or Co-development PartnerClient-partner for the Creil Sud Oise landscape plan (2018), with the firm serving as the landscape planning specialist within the project.
• Ecole d'Urbanisme de ParisminorStrategic or Co-development PartnerStéphane Mercier is co-pedagogical director of the Master 2 'Environnements Urbains'. Tanguy Colas des Francs also intervenes in teaching. This academic partnership enriches the firm's practice by continuously questioning the role of landscape-urbanist in territorial development.
• République StudiominorOthersDesign studio credited for the firm's website and brand design.

Scale indicators3 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Agence Ter: French landscape architecture and urban planning firm operating at the national and international scale. Directly competes with Les Rondeaux on French public-sector urban planning masterplans and large-scale public space commissions, while operating at a much larger scale.
• Urbicus: French urban planning, landscape, and architecture practice based in Paris and Marseille. Direct competitor to Les Rondeaux on public-sector urban planning, territorial studies, and participatory masterplanning missions.
• D'ici là: French landscape architecture and urban planning firm operating in the Paris region and beyond. Comparable to Les Rondeaux in mission type (maîtrise d'œuvre opérationnelle, urban studies) and client base (municipalities, public housing).
• Michel Desvigne Paysagiste: Prominent French landscape architect known for large-scale urban and territorial projects. Comparable to Les Rondeaux in offering landscape architecture and urban planning services to French public-sector clients, particularly on metropolitan and urban renewal commissions.
• BASE (Bureau d'Architectes et de Designers Associés): French landscape architecture and urban planning firm with strong public-sector portfolio. Comparable to Les Rondeaux in offering integrated landscape/urbanism services to municipalities and developers, often operating in co-contracting with architects and engineers.
• Atelier Jacqueline Osty et Associés: French landscape architect leading a multidisciplinary practice with public clients including Ville de Paris. Comparable to Les Rondeaux in typology of work (urban parks, public space regeneration) and culture of auteur-led design, though at a larger scale.

Broad incumbents

• INGEROP: Major French engineering and consultancy firm with a landscape and urban planning practice. Competes with Les Rondeaux on multidisciplinary public infrastructure tenders that bundle landscape design with VRD, environment, and engineering.

Emerging players

• Topager: French firm specializing in urban agriculture, green roofs, and ecological landscape design. Partial overlap with Les Rondeaux' agro-forestry and biodiversity-conscious approach, serving public and private clients focused on urban greening.
• Atelier Roberta: French landscape architecture practice working on public space and urban regeneration projects. Comparable in scale and typology to Les Rondeaux, serving similar public clients in France with a focus on contemporary public space design.

Others

• William Moore - Atelier de l'Arbre: French arboriculture consulting firm that trains Les Rondeaux in VTA/QTRA tree diagnostics. Comparable as a specialist in tree patrimony assessment and management methodology referenced in Les Rondeaux' technical stack.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Instagraminstagram.com/lesrondeaux
• LinkedInlinkedin.com/company/les-rondeaux-paysagistes-urbanistes

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

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M&A

Investments

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Frequently asked questions about Les Rondeaux, paysagistes urbanistes