ADK

What ADK does

ADK - Consulting Engineers S.A. is a Greek multidisciplinary engineering consultancy founded in 1961 and headquartered in Athens. The firm delivers full-lifecycle engineering services across six sectors — Transport, Ports/Harbours/Coastal Engineering, Buildings, Water, Environment, and Management — spanning feasibility studies, detailed design, project management, and construction supervision. Its customer base is concentrated in the Greek public sector, with documented showcase projects including the Athens Metro, the Acropolis Museum, the Hellinikon Olympic Venues, the Port of Igoumenitsa, and Revythoussa Island LNG Tanks.

The business model is traditional professional services: projects are won through public-sector procurement and delivered on a quote-based, project-specific engagement basis, with no disclosed pricing tiers, no software product, and no recurring revenue stream. The firm is privately held under a Greek S.A. (Société Anonyme) legal form, has 101–250 employees, and reports financial statements publicly on its corporate website. Recent public filings show two consecutive share-capital reductions in 2020 and 2021, followed by an Extraordinary General Meeting notice in 2022 — the strategic intent (capital return vs. loss absorption) is not clarified in the source material.

There is no disclosed AI/ML capability, no proprietary software platform, and no patent portfolio; service delivery is human-staffed. Geographic footprint is stated as Europe, with a dedicated International experience page indicating some activity beyond Greece, but no quantified international revenue or named non-Greek projects are provided.

Name

ADK

Legal name

ADK - Consulting Engineers S.A.

Website

https://adk.net

Company type

Private

Founded year

1961

Operating status

Operating

Headcount range

101–250 employees

Short description

ADK is a Greek multidisciplinary engineering consultancy, founded 1961 and headquartered in Athens, delivering full-lifecycle design, project management, and construction supervision across transport, ports, buildings, water, environment, and management sectors to primarily public-sector clients.

Ownership category

akta.pro rank

Headquarters

HQ city

Athens

HQ country

Greece

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Distribution channels1 record

Core offering

ADK is a Greek multidisciplinary engineering consulting firm that provides a complete range of services across transport, ports/harbours/coastal, buildings, water, environment, and management sectors. Services cover the entire project life-cycle — from initial planning and feasibility studies, through detailed design and project management, to construction supervision — delivered primarily to government and public-sector clients in Greece.

Product overview

ADK is a leading Greek multidisciplinary engineering consulting firm offering a unified portfolio of services across six core engineering sectors: Transport, Ports/Harbours/Coastal Engineering, Buildings, Water, Management, and Environment. Operating since 1961, the firm provides a complete range of high-quality services throughout the entire project life-cycle: from initial planning and feasibility studies, to detailed design, project management, and construction supervision. Notable showcase projects include Athens Metro, Acropolis Museum, Hellinikon Olympic Venues, Port of Igoumenitsa, and Revythoussa Island LNG Tanks.

Differentiator

Problem solved

Functional benefit

Products and services

• Transport Engineering Services Engineering consulting services for transport infrastructure projects including planning, feasibility studies, detailed design, project management, and construction supervision. Targeted at government and public-sector clients.
• Ports, Harbours and Coastal Engineering Services Engineering consulting services for port, harbour, and coastal engineering projects throughout the project life-cycle. Targeted at port authorities and government maritime agencies.
• Buildings Engineering Services Engineering consulting services for building projects from initial planning through construction supervision. Targeted at government, cultural, and public-sector building owners.
• Water Engineering Services Engineering consulting services for water infrastructure projects including planning, design, and project management. Targeted at water utilities and government water authorities.
• Management Consulting Services Project management and construction supervision services across the engineering spectrum. Targeted at public-sector clients requiring lifecycle project oversight.
• Environment Engineering Services Engineering consulting services with focus on environmental considerations and sustainable practices. Targeted at infrastructure clients requiring environmental compliance and sustainability guidance.

Named customers5 records

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators1 record

Recent moves5 records

Expansion highlights4 records

Direct peers

• Systra: France-based transport engineering consultancy active across Europe on rail, metro, and urban transport projects — directly comparable to ADK's transport infrastructure practice.
• Egis: French engineering group focused on transport, buildings, water, and environment with significant public-sector engagement in Europe — direct peer in scope, customer base, and project types.
• Arup: Global engineering consultancy delivering transport, buildings, water, and environmental projects for public clients — directly comparable to ADK on the multidisciplinary, project-lifecycle service model.
• COWI: Danish engineering consultancy with strong transport, ports, coastal, and environment practices serving public-sector clients across Europe — closely matching ADK's sector mix and full-lifecycle delivery.
• Arcadis: Amsterdam-based global design, engineering, and consulting firm with comparable multidisciplinary capabilities across transport, water, environment, and buildings — directly overlapping ADK's service portfolio and target public-sector clients.
• Hill International: Project management and construction supervision specialist with deep public-sector and infrastructure engagement, closely matching ADK's project management and construction supervision service line.
• Mott MacDonald: UK-headquartered engineering consultancy with deep public-sector transport, water, environment, and buildings practices, operating on similar full-lifecycle design and supervision mandates as ADK.

Broad incumbents

• WSP: Large international engineering consultancy with European public-sector transport, environment, and water practices — overlaps ADK's market and service lines but operates at significantly greater scale.
• AECOM: Global infrastructure consulting giant with full-service transport, water, environment, and buildings practices; competes with ADK on large public-sector tenders but at much greater scale and geographic breadth.

Regional players

• SWS Engineering: Italian-headquartered engineering consultancy with Mediterranean public-sector infrastructure projects in transport, water, and environment — a regional peer of similar scale to ADK operating in adjacent Southern European markets.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights5 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 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 ADK