What Green Tech does

Green Tech International S.A. is a Romanian geothermal energy platform that owns and operates one of Europe's largest private portfolios of deep geothermal wells — 82+ operational wells with 300 MWth of installed heating and cooling capacity, targeted to reach 1 GWth by 2035. The company harnesses deep geothermal resources to deliver 24/7 baseload thermal energy across three synergistic verticals: district heating (decarbonizing urban heating networks in Bucharest, Timișoara, and other Romanian cities, replacing fossil-fueled systems), data center cooling (currently building 110 MW of geothermal-cooled capacity across two sites for AI-optimized data centers), and sustainable agriculture (geothermal-powered hydroponic greenhouses operated through subsidiary Horti Green Invest, with planned 50+ hectares of cultivation area). The portfolio is operated through three subsidiaries: Geotherm Distribution S.A. (commercial heating in Călimănești), Horti Green Invest S.A. (sustainable horticulture, acquired July 2024), and Apoterm Nădlac S.R.L. (residential district heating).

The company's business model is built on long-term, recurring contracted revenue from B2B enterprise and municipal clients. District heating and geothermal energy supply are structured as subscription/recurring contracts with predictable cash flows, while the agriculture and data center verticals layer in hardware sales and managed services. The go-to-market is direct enterprise sales to large-scale industrial and municipal buyers — heat network operators, data center operators, and greenhouse developers — with deep technical integration on the customer side. Pricing is not publicly disclosed; contracts are negotiated bilaterally with industrial clients in energy-intensive sectors. The company claims the longest lifecycle among renewable sources (100-year well life vs. 20-year for wind/solar) and a 30+ year track record of geothermal operations, positioning the asset base as a strategic moat for institutional buyers.

Green Tech completed its IPO on the Bucharest Stock Exchange in February 2025 at a EUR 241 million market capitalization, anchored by a EUR 72 million strategic investment from Bahamas-based GEM Global Yield for a 29.7% stake, alongside a EUR 135 million Share Subscription Facility. The company is pursuing a EUR 500 million investment strategy spanning vegetable production, district heating, and data center cooling, with a planned foreign exchange dual listing in 2026. In 2024, revenue reached RON 9.9 million (+28% YoY) with net profit of RON 2.56 million; Q1 2026 revenue reached RON 5.35 million (+56% YoY), reflecting acceleration against the EUR 200 million Bucharest district heating project launched in March 2026. The company also adheres to EU Taxonomy, Paris Agreement, UN PRI, and GHG Protocol sustainability frameworks, positioning it for ESG-aligned capital pools.

Name

Green Tech

Legal name

Green Tech International S.A.

Website

https://green-tech.energy

Company type

Public

Founded year

2012

Operating status

Operating

Headcount range

11–50 employees

Short description

Green Tech International is a Romanian geothermal energy platform operating 82+ deep geothermal wells and 300 MWth of installed capacity, delivering baseload heating and cooling to district heating utilities, AI data centers, and hydroponic greenhouse operators across Romania.

Ownership category

akta.pro rank

Product category

Geothermal Energy Services

NAICS

Steam and Air-Conditioning Supply (221330), Steam and Air-Conditioning Supply (22133)

SIC

Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

Geothermal Direct Use Heat Projects (District Heating, Greenhouses, Aquaculture, Industrial Heat) (EUAMAEAG)

Keywords

• Geothermal energy supply
• District heating services
• Data center cooling
• Hydroponic greenhouse farming
• Renewable thermal energy

Headquarters

HQ city

Bucharest

HQ country

Romania

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Geothermal Energy Supply: Supply of geothermal heating and cooling energy to industrial and residential clients. Provides 24/7 renewable energy, securing long-term contracts with predictable cash flows.
2. District Heating Services: Delivery of carbon-free warmth to homes and businesses through district heating networks, replacing fossil-fueled urban heating systems.
3. Sustainable Agriculture Operations: Geothermal-powered hydroponic greenhouse operations producing sustainable vegetables with minimal CO2 footprint through subsidiary Horti Green Invest.
4. Data Center Cooling Solutions: Providing clean, sustainable cooling for AI-optimized data centers using geothermal resources.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Green Tech extracts and distributes geothermal energy from deep wells to provide baseload renewable heating and cooling for three sectors: district heating networks (Bucharest, Timișoara, Călimănești), AI data center cooling, and geothermal-powered hydroponic greenhouse agriculture. The company operates 82+ deep geothermal wells with 300 MWth installed capacity, sells thermal energy under long-term contracts, and runs hydroponic vegetable production through subsidiary Horti Green Invest.

Product overview

Green Tech International is a geothermal energy platform company that harnesses deep geothermal wells to supply heat and cooling across three synergistic focus sectors: Agri-Food (geothermal-powered hydroponic greenhouses for sustainable food production), Data Centers (100% renewable energy cooling solutions with 110 MW capacity under construction), and District Heating (carbon-free warmth for urban communities replacing fossil-fueled heating). The company operates 82+ deep geothermal wells with 300 MWth installed capacity through three main subsidiaries: Horti Green Invest (sustainable horticulture), Geotherm Distribution (commercial heating), and Apoterm (residential district heating). The geothermal energy serves as the foundational resource powering all product lines, with the company positioning itself as a provider of eco-friendly thermal energy solutions for high-demand industries.

Differentiator

Problem solved

Functional benefit

Products and services

• District Heating Solutions Clean, sustainable geothermal-powered heat delivery for urban district heating networks, decarbonizing cities including Bucharest and Timișoara by replacing fossil-fueled urban heating systems. Leverages 30+ years of geothermal heating expertise to serve major Romanian urban heating networks with baseload renewable heat independent of weather conditions.
• Data Center Cooling Solutions High-performance, energy-efficient data center solutions providing 100% renewable geothermal energy for cooling operations supporting AI workloads and digital infrastructure. Currently developing 110 MW data center capacity across 2 sites in Bucharest and Călimănești, enabling decarbonization of digital infrastructure with sustainable baseload cooling.
• Geothermal-Powered Hydroponic Greenhouses Sustainable, year-round vegetable and plant cultivation using geothermal heating combined with hydroponic farming systems delivered through subsidiary Horti Green Invest. Uses up to 90% less water than soil-based farming, eliminates soil dependency, maximizes crop yield, and lowers carbon footprint by eliminating reliance on fossil fuels. Includes optional solar and battery integration for full energy independence.

Quantifiable outcome

• 127,000 tons CO2 emissions reduction per year from Bucharest district heating project
• +3 more outcomes

Segments3 records

Ideal customer profiles3 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, supporting and minor.

• Horti Green Invest S.A.coreOthersWholly-owned subsidiary acquired in July 2024. Owns 16 geothermal wells and 60 hectares of land fit for greenhouse construction in Timiș County. Pursuing 19-hectare hydroponic greenhouse complex in Lovrin and nine-hectare expansion in Ciocaia.
• Geotherm Distribution S.A.coreOthersSubsidiary providing district heating and heating to hotels and spa facilities in Călimănești.
• Apoterm Nădlac S.R.L.supportingOthersSubsidiary providing affordable district heating to local communities in Nădlac. Green Tech International and Geotherm Distribution control 73.97% of the company.
• OMV Petrom GroupminorStrategic or Co-development PartnerListed in news section as a partner entity, though specific partnership details are limited.

Scale indicators23 records

Recent moves8 records

Expansion highlights12 records

Direct peers

• Ormat Technologies: Leading vertically-integrated geothermal power and equipment company that develops, builds, and operates geothermal plants globally. Directly comparable as a publicly-listed pure-play geothermal operator with deep well management expertise, though focused on electric generation rather than direct-use heating.
• Reykjavik Geothermal: Iceland-based developer of high-temperature geothermal resources for power and direct-use applications. Comparable as a European geothermal developer with deep-well operations serving district heating, industrial, and power markets, sharing Green Tech's direct-use focus on heat customers.
• Cyrq Energy: US-based renewable energy IPP focused exclusively on geothermal power generation with operational assets across the western US. Comparable as a pure-play geothermal operator that owns and manages deep geothermal well portfolios for baseload energy supply.

Broad incumbents

• Fortum: Nordic-listed utility with significant district heating operations across the Baltic region and continental Europe. Comparable as an incumbent district heating provider with decarbonization mandates, though at much larger scale and with diversified generation including geothermal, biomass, and fossil assets.
• Veolia Environnement: Global environmental services and district heating operator with major urban heating networks across Central and Eastern Europe. Comparable as a broad incumbent in district heating and energy services that competes for municipal heating contracts and is pursuing geothermal and heat-pump decarbonization.
• ENGIE: Global utility with extensive district heating operations in Romania and across Europe plus growing geothermal portfolio. Comparable as a broad incumbent pursuing geothermal direct-use projects and decarbonization of urban heating, with overlapping customer base in Romanian municipalities.
• Enel Green Power: Global renewable energy developer with geothermal operations in Italy, Chile, and the US plus extensive district heating activities. Comparable as a broad incumbent renewable energy platform with geothermal expertise and overlapping decarbonization mandates in European markets.

Emerging players

• Baseload Capital: Sweden-based geothermal investment platform that funds and develops deep geothermal projects globally. Comparable as an emerging geothermal-focused capital partner targeting heating and baseload power markets, intersecting with Green Tech's direct-use heating focus.
• Eavor Technologies: Canadian developer of closed-loop geothermal technology for district heating and power applications. Comparable as an emerging geothermal technology company targeting district heating customers, though using a different (closed-loop) technical approach versus Green Tech's deep-well direct-use model.

Others

• Geothermal Energy Denmark (GEODH): European geothermal district heating industry association. Comparable as the umbrella organization Green Tech references on its website, representing the broader European geothermal heating ecosystem in which the company operates as a member/participant.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/green-tech-international-sa

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Subsidiaries3 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 Green Tech