What Thalis does

Thalis E.S. S.A. (ΘΑΛΗΣ ΠΕΡΙΒΑΛΛΟΝΤΙΚΕΣ ΥΠΗΡΕΣΙΕΣ ΜΟΝ. Α.Ε.) is a Greek environmental services company headquartered in Nea Kifisia, Athens, and operating as a subsidiary of Motor Oil Group (Motor Oil Holdings, listed on the Athens Stock Exchange). Founded in 2003 and employing 101-250 staff, Thalis delivers circular economy solutions across four core sectors: Water Cycle Management (Κύκλος Νερού), Solid Waste Management (Στερεά Απόβλητα), Land Restoration / Soil Remediation (Αποκαταστάσεις Εδαφών), and Energy Services (Ενέργεια). The company's service platform spans construction and operation of waste treatment facilities, sanitary landfills (ΧΥΤΑ/ΧΥΤΥ), wastewater treatment plants, irrigation networks, and contaminated-site remediation projects. Operational throughput at scale is a defining feature: 539,000 tonnes of waste managed annually, 20.5 million m³ of wastewater processed, 5,500 tonnes of materials recycled, 26,500 tonnes diverted from landfill, and over 1.5 million citizens served.

The company's technology is operational infrastructure rather than software IP — physical assets for biological and mechanical treatment, material recovery, and environmental remediation — underpinned by 11 ISO certifications (9001, 14001, 45001, 50001, 27001, 37001, 39001, 22301, 27701, 19650, 26000) covering quality, environmental, safety, energy, information security, anti-bribery, road safety, business continuity, privacy, BIM, and social responsibility management. The business model is B2G (Business-to-Government): revenue is generated through public-service contracts and infrastructure projects with municipalities, regional authorities, water utilities, airports, and industrial parks, with named clients including DEYA Heraklion (wastewater reuse for irrigation), Athens International Airport (critical environmental infrastructure), FODSA South Aegean (Kos Island landfill operations), and the Oinofyta-Asopos Business Park (industrial remediation). Go-to-market is enterprise field sales through direct engagement and public procurement processes; pricing is contractual and not publicly disclosed. Geographic footprint is domestic Greece, with project locations spanning Crete (Heraklion, Sitia, Amari, Pera Galinon, Chersonissos), the South Aegean (Kos), and Attica (Athens region, Oinofyta-Asopos). The company is privately held within Motor Oil Group's diversified conglomerate structure, with no independent funding history or public revenue disclosure.

Name

Thalis

Legal name

ΘΑΛΗΣ ΠΕΡΙΒΑΛΛΟΝΤΙΚΕΣ ΥΠΗΡΕΣΙΕΣ ΜΟΝ. Α.Ε.

Website

https://thalis-es.gr

Company type

Private

Founded year

2003

Operating status

Operating

Headcount range

101–250 employees

Short description

Thalis E.S. is a Greek environmental services company and Motor Oil Group subsidiary providing circular economy solutions in water, solid waste, soil remediation, and energy to municipalities, regional authorities, and infrastructure operators across Greece.

Ownership category

akta.pro rank

Product category

Environmental Services

NAICS

Waste Collection (5621), Remediation and Other Waste Management Services (5629), Water Supply and Irrigation Systems (221310)

SIC

Refuse Systems (4953), Sanitary Services (4950)

akta.pro primary industry

Circular Economy & Resource Efficiency (BPADALAM)

akta.pro secondary industries

Water Resources, WASH & Integrated Water Management (BPADALAH), Pollution Prevention, Chemicals & Waste (incl. Plastics) (BPADALAJ), Waste, Recycling & Circularity (On-site Programs) (BPABAAAL)

Keywords

• Environmental services
• Solid waste management
• Wastewater treatment
• Soil remediation
• Circular economy solutions

Headquarters

HQ city

Athens

HQ country

Greece

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Municipal Environmental Services: Provides environmental management services to municipalities and regional authorities including waste processing, wastewater treatment, and landfill operations through public service contracts
2. Government Infrastructure Projects: Executes environmental remediation and infrastructure projects for government entities, airports, and industrial clients

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Thalis E.S. S.A. is a Greek environmental services company that delivers circular economy solutions across four integrated sectors: Water Cycle (wastewater treatment, sewage/drainage processing, water reuse for irrigation), Solid Waste (treatment and recovery facilities, landfill construction and operation, material recycling), Land Restoration (environmental remediation and contaminated site cleanup), and Energy Services (energy management supporting circular economy and resource efficiency). The company contracts with municipalities, regional authorities, industrial parks, and large infrastructure operators in Greece to design, build, and operate environmental infrastructure.

Product overview

Thalis E.S. S.A. is an environmental services company operating as a single integrated service platform across four core areas: Water Cycle Management, Solid Waste Management, Land Restoration, and Energy Services. The company specializes in circular economy solutions including waste reuse, recovery, restoration, and valorization. Their operational portfolio includes construction and operation of waste treatment facilities, landfill management (ΧΥΤΑ/ΧΥΤΥ), wastewater treatment plants, irrigation networks, and environmental remediation projects. The company serves approximately 1.5 million citizens, processes 539,000 tonnes of waste annually, recycles 5,500 tonnes of materials per year, treats 20.5 million m³ of wastewater annually, and diverts 26,500 tonnes of waste from landfill.

Differentiator

Problem solved

Functional benefit

Products and services

• Water Cycle Management (Κύκλος Νερού) Comprehensive water and wastewater treatment services for municipalities and industrial clients, including processing of sewage and drainage systems, construction and operation of wastewater treatment plants, and water reuse for irrigation.
• Solid Waste Management (Στερεά Απόβλητα) Treatment and recovery of solid waste, including construction and operation of waste treatment facilities and landfills (XYTY/XYTA), plus material recovery and recycling operations for municipalities and regional authorities.
• Land Restoration (Αποκαταστάσεις Εδαφών) Environmental remediation and land restoration services, including soil rehabilitation and contaminated site cleanup for industrial facilities, business parks, and contaminated land in Greece.
• Energy Services (Ενέργεια) Energy management and sustainability services supporting circular economy objectives in energy utilization and resource efficiency for government and industrial clients.

Quantifiable outcome

• 1,500,000+ citizens served
• +3 more outcomes

Named customers4 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

Feature1 record

Partnerships

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

• ΦοΔΣΑ Νοτίου Αιγαίου Α.Ε (FODSA South Aegean)coreStrategic or Co-development Partner · 14 January 2026Thalis signed a new contract with the Special Regional Intermunicipal Solid Waste Management Body of South Aegean for operation of the Kos Island landfill (ΧΥΤΑ Νήσου Κω). This is an ongoing operational relationship serving island municipalities in the South Aegean region.
• Εταιρία Ανάπτυξης και Διαχείρισης Επιχειρηματικού Πάρκου Οινοφύτων Ασωπού ΑΕmajorStrategic or Co-development Partner · 30 March 2025Thalis signed a landmark contract for a Waste Treatment Unit at the Oinofyta-Asopos Business Park. This project is described as a milestone for the environmental remediation of the area and protection of the Asopos river, addressing long-standing industrial pollution issues in the region.
• Athens International Airport (Διεθνής Αερολιμένας Αθηνών)majorStrategic or Co-development Partner · 10 March 2025Thalis secured a significant new contract for managing critical environmental infrastructure at Athens International Airport, one of Greece's most important transportation hubs. This partnership demonstrates Thalis's capability to serve major infrastructure operators with environmental management services.
• Motor Oil (ΕΛΛΑΣ) Διυλιστήρια Κορίνθου Α.ΕminorStrategic or Co-development PartnerMotor Oil Group's whistleblowing policy and regulatory compliance framework applies to Thalis as a subsidiary, indicating corporate governance alignment. Thalis operates under the Motor Oil Group's reporting and compliance structures.

Scale indicators8 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• FCC Environment: European environmental services division of FCC Group, providing municipal waste collection, treatment, and recycling across multiple countries. Comparable in scale and integrated service model to Thalis's solid waste operations.
• PreZero: European environmental services provider (Schwarz Group division) operating in waste management, recycling, and circular economy across multiple countries. Comparable in integrated waste-to-resource circular economy positioning with Thalis's solid waste business.
• Urbaser: Spanish-headquartered environmental services company providing urban waste collection, treatment, and circular economy solutions to municipalities. Comparable in business model and customer base to Thalis's municipal services business.
• Veolia Environnement: Global environmental services incumbent operating across water, waste, and energy services for municipalities and industry. Represents the multinational incumbent that could enter Greek municipal contracts and compete with Thalis on large-scale tenders.
• SUEZ: International water and waste management group serving municipalities and industrial clients globally. Comparable across all four of Thalis's core sectors (water, waste, soil, energy) at significantly larger scale.
• Renewi: European waste-to-product company operating across multiple countries in waste collection, recycling, and material recovery. Comparable in circular economy positioning and municipal/industrial waste services model.

Emerging players

• Waterleau: Belgian water and wastewater treatment specialist serving industrial and municipal clients. Comparable to Thalis's Water Cycle Management division in technology and project-based delivery model, though serving different geographies.

Direct peers

• Polygreen: Greek environmental services company offering integrated waste management, recycling, and circular economy solutions to municipalities and industrial clients. Most direct competitor in the Greek municipal waste and circular economy space where Thalis operates.
• Antipollution: Greek environmental services firm focused on industrial waste management, hazardous waste treatment, and remediation. Closely comparable in industrial site cleanup and hazardous materials handling, particularly relevant to Thalis's Asopos remediation work.

Regional players

• Hellenic Petroleum (ELPE) Environmental Division: Major Greek energy group with environmental and waste management activities related to refinery operations. Comparable as a Greek-headquartered conglomerate with industrial waste and circular economy exposure.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@Thalis_E.S/videos
• LinkedInlinkedin.com/company/thalis-es-sa

Compliance13 records

Revenue estimate

Valuation estimate

Number of profiles

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 Thalis