Agence Aei

What Agence Aei does

Agence Aei (AEI) is a French multi-disciplinary design firm founded in 1998 by Pierre Loyer, headquartered in Le Pré-Saint-Gervais in the eastern Paris suburbs. The firm operates independently, with no parent group or external investors, and is led by four associates (Justine Bisserier, David Dayan, Gjergj Miraci, Paul Grolleau) covering heritage architecture, landscape architecture, urban planning, and engineering. AEI delivers integrated services across architecture, landscape architecture, urban planning, heritage preservation, public space design, bridge and passerelle design, and mobility infrastructure, organized into specialized internal poles (Franchissement, Au fil de l'eau, Espace public, Urbanisme, Bâtiment, Patrimoine, Mobilité). With approximately 20 professionals and over 600 completed project references, the firm works at scales ranging from small urban studies (€106K) to flagship infrastructure mandates (€30M Pont Seibert reconstruction, winner of the 2023 Eiffel Architecture Competition in the FRANCHIR category).

AEI's core offering is professional design and consulting services, with revenue generated through project-based fees — typically a percentage of construction cost or fixed study fees — earned through competitive bidding on French public procurement and direct contracts. The go-to-market is sales-led, relying on public tender platforms, professional networks, and a portfolio-driven website. The firm operates exclusively within France but with coverage across all 13 metropolitan regions plus overseas territories (Martinique, Mayotte, Réunion). There is no technology platform, software product, API, or proprietary AI component; AEI is a pure craft professional services firm whose 'technology' is the integrated cross-disciplinary expertise of its people rather than any code base or digital product.

The customer base is entirely French public sector: municipalities (Lille, Paris 10e, Tourcoing, Livry-Gargan), metropolitan and agglomeration authorities (MEL, Tours Métropole Val de Loire, Dunkerque CUD, CAMVS), regional authorities (CTM Martinique), port authorities (Port de Normandie), and public development companies (SPL PariSeine, SPL Val-de-Seine Aménagement). AEI frequently partners as mandataire or co-traitant with major French engineering firms — INGEROP, ARTELIA, EGIS — on large infrastructure and urban development projects, embedding itself in the standard consortium structure for complex public works. Revenue is not publicly disclosed.

Name

Agence Aei

Legal name

Agence Aei

Website

https://aeiagence.com

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

11–50 employees

Short description

Agence Aei is an independent French multi-disciplinary design firm (founded 1998, ~20 staff) providing architecture, landscape, urban planning, and heritage services to French public-sector clients through competitive bidding and partnerships with engineering firms like INGEROP, ARTELIA, and EGIS.

Ownership category

akta.pro rank

Headquarters

HQ city

Le Pré-saint-gervais

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales

Revenue model

1. Professional Services - Architecture and Urban Planning: AEI generates revenue through professional services fees for architecture, landscape architecture, urban planning, and heritage consulting projects. Revenue is project-based, typically billed as a percentage of construction costs or fixed fees for studies. Projects range from small studies (€106,000) to large infrastructure projects (€30M).

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Agence Aei is a multidisciplinary architecture, landscape, urban planning, and heritage design and consulting firm. It delivers integrated services spanning architecture, landscape architecture, urban planning studies, heritage preservation, public space requalification, bridge design, and mobility infrastructure. Projects range from preliminary studies to full design-build supervision for public sector clients across France.

Product overview

Agence Aei is a multidisciplinary architecture, landscape, urban planning, and heritage firm founded in 1998. The company offers an integrated portfolio of services spanning architecture, landscape architecture, urban planning, heritage preservation, public space design, bridge/passerelle design, and mobility infrastructure. With over 600 projects completed across France, AEI operates from study phases through to complete project delivery, providing clients with comprehensive expertise from initial conception to final construction oversight. The firm is organized into specialized poles including Franchissement (crossings), Au fil de l'eau (waterways), Espace public (public space), Urbanisme (urban planning), Bâtiment (buildings), Patrimoine (heritage), and Mobilité (mobility).

Differentiator

Problem solved

Functional benefit

Products and services

• Architecture Services Comprehensive architectural design services for buildings, including new construction, rehabilitation, and restoration projects across various scales and typologies.
• Landscape Architecture Landscape design and planning services encompassing parks, gardens, public squares, urban green spaces, and natural environment integration.
• Urban Planning and Studies Urban planning services including master plans, development studies, zoning plans, and territorial development strategies at metropolitan and municipal scales.
• Heritage Preservation Heritage conservation services including diagnostic studies, restoration projects, Site Patrimonial Remarquable (SPR) management, and protected building rehabilitation.
• Public Space Design Design and requalification of public spaces including squares, streets, promenades, and urban plazas with emphasis on greenery and pedestrian amenities.
• Bridge and Passerelle Design Design of pedestrian bridges, vehicular crossings, and multimodal connection structures over water bodies and infrastructure corridors.
• Mobility Infrastructure Design and planning of transportation infrastructure including cycling networks, bus rapid transit systems, multimodal hubs, and pedestrian pathways.

Named customers10 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

Five partnerships are on record, tiered core and minor.

• INGEROPcoreStrategic or Co-development PartnerINGEROP serves as a regular co-traitant (subcontractor) on major infrastructure and urban development projects. Collaboration includes projects such as the Jardin des Arts in Lille (€3.3M), Parc Ziegler extension in Dunkerque (€3M), Pont Seibert reconstruction (€30M), and Île Seguin public spaces.
• ARTELIAcoreStrategic or Co-development PartnerARTELIA frequently partners with AEI as mandataire or co-traitant on projects including the Embellish Paris project (€2.35M), Sévigné Park development (€3.2M), Pont de Sablé-sur-Sarthe (€4M), and multiple heritage and infrastructure projects.
• CIAEminorStrategic or Co-development PartnerCollaborated on the Seine Axis Master Plan study for CAMVS, providing expertise for the urban and landscape planning exercise across 20 municipalities.
• EGIScoreStrategic or Co-development PartnerEGIS serves as mandataire on major projects including the Tours cycling network (€10.4M) and Rues aux écoles Paris (€4.8M), with AEI as co-traitant providing landscape and urban design expertise.
• EgiscoreStrategic or Co-development PartnerPartnership on Loire à Vélo Troglo project (€3.7M) - a greenway through troglodyte tunnels and cliff faces, providing engineering and landscape expertise.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Architecture-Studio: Major French architecture firm with a strong public-sector and international portfolio spanning cultural, urban, and infrastructure projects. Comparable to AEI in scale and architectural/public-realm practice, though broader in geographic reach.
• BASE (Bureau d'Architecture et de Stratégies Environnementales): French landscape and urban strategy firm focused on ecological transitions and public space design. Comparable to AEI in integrating landscape architecture with sustainability and public-sector urban planning mandates.
• Cabinet Merlin: French engineering and urban planning consultancy serving municipalities and developers. Comparable to AEI in serving French public-sector clients in urban planning and infrastructure.
• Agence TER: French landscape architecture and urban planning firm with comparable multi-disciplinary practice. Directly comparable to AEI as a French boutique integrating landscape, urbanism, and public space design for public sector clients.
• TVK (Trévelo & Viger-Kohler): Paris-based architecture and urban planning firm working on mobility, public space, and large-scale urban projects. Comparable to AEI's urban planning and mobility infrastructure offerings for French public clients.
• TN+ (Topos et Nouveaux paysages): French urban design and landscape firm working on public space, mobility, and territorial planning projects. Overlaps with AEI's public space, mobility infrastructure, and urban planning services for French municipalities.
• Atelier de Paysages Bruel-Delmar: Paris-based landscape architecture studio recognized for monumental public landscape projects in France. Comparable to AEI in discipline, scale, and public-sector client base; a recent hire at AEI (Emna Bahloul) previously worked there.

Broad incumbents

• Ingérop: Major French engineering group active in infrastructure, urban development, and environment. Documented as a recurring co-traitant with AEI on projects such as Pont Seibert and Jardin des Arts.
• Artelia: Large engineering and project management group with a strong footprint in urban development, buildings, and infrastructure. Listed as a core partner of AEI on multiple projects (Embellir Paris, Sévigné Park, Pont de Sablé-sur-Sarthe).
• Egis: Large French engineering and consulting group operating across infrastructure, mobility, and urban development. Listed as a core partner of AEI on major projects (Tours cycling network, Rues aux écoles), operating at broader scale and complementary scope.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 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 Agence Aei