What Daldrup+Soehne does

Daldrup & Söhne AG is a publicly listed drilling services provider headquartered in Ascheberg, Germany, operating across four divisions: deep and near-surface geothermal energy, water procurement (drinking, mineral, thermal brine), raw materials exploration, and environmental engineering services (EDS). The company runs a fleet of approximately 40 drilling systems, including five high-tech deep drilling rigs capable of operating at depths between 2,000 and 6,000 meters, and claims a track record of more than 60 deep geothermal wells in Continental Europe, positioning it as a market leader in deep geothermal drilling for the region.

Revenue is generated through project-based contracts, typically awarded via competitive tenders (including EU-wide tenders) or direct negotiations, with individual contract values ranging from low single-digit million euros to high double-digit million euros. The customer base spans municipalities and public utilities (Stadtwerke München, Hamburger Energiewerke, Stadtwerke Neuruppin), government research agencies (Nagra, BGE), and private investors/industrial companies; services are delivered primarily across the DACH region and Benelux through subsidiaries in Switzerland (Daldrup Bohrtechnik AG) and the Netherlands (GERF B.V.), with additional activity in Poland.

The company's economic engine is capital-intensive physical drilling combined with proprietary risk-mitigation mechanisms — most notably the ART-Konzept (Alternative Risk Transfer), an insurance framework developed with insurance partners to manage Fündigkeitsrisiko (finding-risk) in deep geothermal projects and enable high debt-ratio project financing. Founded in 1946, the company is family-controlled (Daldrup family holds 58.36% of shares) and listed on the Frankfurt Stock Exchange Scale segment (ticker 4DS) since November 2007. Reported 2025 consolidated output was EUR 50.8 million with a 17.4% EBIT margin, against an order backlog of EUR 120 million at end of Q1 2026, indicating significant forward revenue visibility.

Name

Daldrup+Soehne

Legal name

Daldrup & Söhne AG

Website

https://daldrup.eu

Company type

Public

Founded year

1946

Operating status

Operating

Headcount range

101–250 employees

Short description

Daldrup & Söhne AG is a publicly listed German drilling services provider offering deep geothermal, water procurement, raw materials exploration, and environmental engineering services to municipalities, public utilities, and government agencies across DACH and Benelux.

Ownership category

akta.pro rank

Product category

Geothermal and Drilling Services

NAICS

Drilling Oil and Gas Wells (213111), Support Activities for Mining (2131), Support Activities for Mining (21311)

SIC

Drilling Oil & Gas Wells (1381), Oil & Gas Field Services, Nec (1389), Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Exploration & Production Drilling Services (RC, Core, Directional, Sonic, Auger) (IMAKAKAB)

akta.pro secondary industries

Directional Drilling & MWD/LWD Services (EUALABAB), Pressure Pumping & Stimulation (Hydraulic Fracturing, Acidizing) (EUALABAF)

Keywords

• Deep geothermal drilling
• Well construction services
• Environmental drilling services
• Raw materials exploration drilling
• Special foundation engineering

Headquarters

HQ city

Ascheberg

HQ country

Germany

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Drilling Services: Project-based drilling services for deep geothermal energy, raw materials exploration, water extraction, and environmental services. Revenue is generated through contracts awarded via competitive tenders or direct negotiations. Contract values range from single-digit to double-digit million euros.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

Daldrup & Söhne AG is a specialized drilling contractor providing deep geothermal drilling (market leader in Continental Europe with 60+ deep wells), water well construction for drinking/mineral/thermal water, environmental services (remediation, gas extraction, groundwater monitoring), and exploratory drilling for raw materials. The company operates its own fleet of 40 drilling systems and serves municipalities, public utilities, industrial customers and government agencies primarily across Central Europe.

Product overview

Daldrup & Söhne AG is a leading drilling services provider operating four core service divisions: Geothermie (Geothermal Energy), Wassergewinnung (Water Procurement), Environment, Development and Services (EDS), and Rohstoffe und Exploration (Raw Materials & Exploration). The company operates as a specialized drilling contractor rather than a software product company. The Geothermie division is the market leader for deep geothermal drilling in Continental Europe with over 60 deep wells drilled. The company has its own fleet of over 40 drilling systems, including five high-tech deep drilling rigs for projects from 2,000m to 6,000m depth. The four divisions serve different market segments but share common drilling expertise and equipment.

Differentiator

Problem solved

Functional benefit

Products and services

• Geothermal Energy Drilling (Geothermie) Drilling services for near-surface geothermal energy (heat collectors and geothermal probes for heating or cooling) and deep geothermal energy (deep geothermal probes for heat recovery, hydrothermal and petrothermal systems for electricity generation and heat recovery). Daldrup is the market leader for deep geothermal drilling in Continental Europe with a track record of more than 60 deep wells, serving municipalities, public utilities, and industrial customers.
• Water Procurement (Wassergewinnung) Well construction services for drinking water, service water, medicinal and mineral water, boiler-feed and cooling water, as well as thermal brine extraction. Uses various drilling techniques including dry, direct circulation, airlift and hammer drilling processes for industrial and municipal water supply applications.
• Environment, Development and Services (EDS) Special environmental engineering services including hydraulic clean-up of contaminated sites, gas extraction wells for recovering waste dump gas, groundwater quality measuring points, water cleansing plants, mobile environmental analysis, and special foundation engineering. Serves industrial customers and government agencies.
• Raw Materials and Exploration (Rohstoffe und Exploration) Exploratory and test drilling to discover deposits of fossil fuels (anthracite, oil and gas) and mineral raw materials (rock salt, copper, nickel), gas extraction wells for recovering mine gas, and exploration and securing of disused mining systems. Serves government clients and research agencies.

Quantifiable outcome

• 60+ deep geothermal wells completed in Continental Europe
• +4 more outcomes

Named customers10 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Two partnerships are on record, tiered minor and core.

• RWEminorOthers · 20 January 2009Joint venture arrangement established in 2009 while Daldrup maintained complete independence. Nature of joint venture appears to be project-specific collaboration rather than formal partnership.
• Insurance Partners (ART-Konzept)coreStrategic or Co-development PartnerDevelopment of Alternative Risk Transfer (ART) concept for insuring finding-risk (Fündigkeitsrisiko) in deep geothermal projects. Enables project financing with high debt ratios by transferring risk to third parties. Successfully used since 2016 in Germany and Netherlands.

Scale indicators18 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Bauer AG: German-based global specialist foundation engineering group whose drilling and ground-engineering capabilities overlap with Daldrup's special foundation engineering-plus-deep-drilling mix; competes for geotechnical tenders and is moving into geothermal energy projects.
• Züblin AG (Strabag subsidiary): German ground engineering and tunneling contractor within the Strabag group; offers special foundation engineering and increasingly geothermal-related services that overlap Daldrup's mid-deep geothermal and foundation engineering portfolio.
• Herrenknecht AG: German global leader in mechanized tunnelling equipment and deep drilling rigs, including directional drilling capabilities used for geothermal projects. Larger and broader than Daldrup, but competes for the same Continental European deep geothermal tenders.

Others

• Vermeer Corporation: US-based drilling equipment manufacturer whose horizontal directional drilling rigs and geothermal-supporting equipment are used in the same geothermal drilling value chain; relevant adjacent player rather than direct service competitor.

Direct peers

• Iceland Drilling Company (Jarðboranir): Icelandic drilling contractor specializing in geothermal, water, and exploration wells with deep-rig capability — the closest international analogue to Daldrup in terms of deep geothermal drilling focus and project mix.

Regional players

• MDC Max Dättlikon AG: Swiss drilling and foundation engineering contractor active in Switzerland and the DACH region; directly comparable in service mix (water wells, geothermal probes, exploration drilling) and competes for similar municipal and infrastructure tenders.
• Stump-Franki Spezialtiefbau GmbH: German special foundation engineering contractor with overlapping drilling competencies in geotechnical and energy-related wells; competing bidder on Daldrup-adjacent German infrastructure tenders.

Emerging players

• Eavor Technologies Inc. Canadian closed-loop geothermal developer commercializing deep-drilling technology; competes indirectly with Daldrup for the same deep geothermal project mandates in Europe and represents a future alternative technology threat.
• FORASOL (Forage & Avalanche): French drilling contractor with deep-rig capability in geothermal and oil & gas wells; comparable business model and technical scope, though operating primarily in France rather than the DACH/Benelux core of Daldrup.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries2 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 Daldrup+Soehne