a.hak

What a.hak does

A.Hak is a privately-held Dutch underground infrastructure construction company founded in 1963 and headquartered in Tricht, Netherlands. The company designs, builds, and maintains pipelines and cable networks for electricity, gas, water, and district heating, serving the country's regulated utility network operators and a small number of government and industrial clients. A.Hak operates through specialized in-house divisions covering pipeline construction (Leidingbouw), directional drilling (Drillcon), distribution networks (Infranet), and electrical connections (Electron), with the majority of activity delivered inside Dutch borders and selective international project work in Israel and Belgium.

The company's core technology stack is built around trenchless installation methods, most notably Direct Pipe drilling (where A.Hak Drillcon is the only Dutch operator and one of few globally), horizontal directional drilling (HDD) with proprietary 80-ton and 150-ton electric rigs, and a world-first fully emission-free hydrogen-powered drilling system (H2DD) developed with TenneT, Genpower, Kuster Energy, and Holthauzen in 2024. A.Hak also applies plough-based soil displacement for fast cable installation and operates an in-house digital management system (HMS) for quality, environment, and safety documentation.

A.Hak generates revenue predominantly through multi-year framework agreements (4–12 years) and competitive tenders with major Dutch grid and utility operators, including Gasunie, TenneT, Liander, Stedin, Enexis, Alliander, PWN, HVC, Vitens, Dunea, and the Defense Pipeline Organization. Pricing is project-based and non-public. The 2024–2026 period has seen a sequence of long-dated contract wins, a Stedin Safety Award 2026, the NSTT No-Dig Award 2024 for H2DD, and a Top-25 ranking among Dutch contractors, consistent with a contractor riding the Dutch energy-transition capex cycle.

Name

a.hak

Legal name

A. Hak

Website

https://ahak.nl

Company type

Private

Founded year

1963

Operating status

Operating

Headcount range

251–500 employees

Short description

A.Hak is a Dutch privately-held contractor founded in 1963 that designs, builds, and maintains underground networks for electricity, gas, water, and heat, serving major Dutch utility and grid operators through long-term framework agreements and proprietary trenchless drilling technology.

Ownership category

akta.pro rank

Product category

Underground Infrastructure Construction

NAICS

Utility System Construction (2371), Oil and Gas Pipeline and Related Structures Construction (23712)

SIC

Water, Sewer, Pipeline, Comm & Power Line Construction (1623), Natural Gas Transmission (4922)

akta.pro primary industry

NGL/LPG Trunkline / Transmission Pipelines (Interstate/Long-Haul) (TLAGAEAI)

akta.pro secondary industries

Distribution System Engineering & Design (Mains/Services/Stations) (EUAJAEAB), NGL/LPG Distribution / Local Delivery Pipelines (Terminal-to-Market) (TLAGAEAJ)

Keywords

• Underground infrastructure construction
• Trenchless drilling technology
• Pipeline installation services
• Energy network construction
• Water distribution networks

Headquarters

HQ city

Tricht

HQ country

Netherlands

HQ region

Europe

Offices6 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Infrastructure Construction Projects: A.Hak generates revenue by designing, constructing, and maintaining underground infrastructure (gas pipelines, water networks, electricity cables, heat networks) for utility companies and government bodies. Projects range from small-scale distribution network work to large transport pipeline projects spanning multiple years.
2. Long-term Framework Agreements: Revenue is secured through multi-year framework agreements (e.g., 10-year agreement with Gasunie, 12-year contracts with Enexis, 4-year agreement with DPO, 6-year contracts with Alliander) providing predictable project pipelines for pipeline construction, maintenance, and management.
3. Operational Maintenance & Decommissioning: A.Hak provides full lifecycle services including operational maintenance and decommissioning of underground infrastructure, extending revenue relationships beyond initial construction.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

A.Hak designs, builds, and maintains underground infrastructure for the transport and distribution of electricity, water, gas, and heat in the Netherlands and selected international markets. The company delivers these services through five core expertise areas: Distribution Networks, Transport Pipelines (natural gas, hydrogen, green gas, CO2), High-voltage Connections, District Heating Networks, and Trenchless Techniques (HDD, Direct Pipe, closed-front drilling). Projects range from small-scale distribution work to multi-year, large-diameter transport pipeline construction, with the full lifecycle from engineering and design through execution, commissioning, maintenance, and decommissioning.

Product overview

A.Hak is a Dutch infrastructure construction company offering five core service areas: Distribution Networks (distributienetwerken), Transport Pipelines (transportleidingen), High-voltage Connections (hoogspanningsverbindingen), District Heating Networks (warmtenetten), and Trenchless Techniques (sleufloze technieken). The company operates as a unified service portfolio rather than a platform-with-modules architecture, providing end-to-end underground infrastructure services from design through construction to maintenance. Their services cover water, gas, electricity, hydrogen, and heat distribution infrastructure for utility companies, grid operators, and industrial clients throughout the Netherlands and internationally.

Differentiator

Problem solved

Functional benefit

Products and services

• Distributienetwerken (Distribution Networks) Installation and maintenance of underground distribution networks for water, gas, and electricity serving residential and commercial end-users. Targeted at Dutch utility network operators requiring new connections, network expansion, and replacement of aging infrastructure.
• Transportleidingen (Transport Pipelines) Construction of large-scale transport pipelines for natural gas, hydrogen, green gas, and CO2 across regional and national distances. Targets gas transport and distribution operators, as well as industrial clients requiring long-distance pipeline infrastructure.
• Hoogspanningsverbindingen (High-voltage Connections) Installation of underground high-voltage electricity cables and connections for grid operators to transmit electrical power. Serves Dutch TSO/DSO operators (TenneT, Liander, Enexis, Alliander, Stedin) needing grid reinforcement and expansion.
• Warmtenetten (District Heating Networks) Design and construction of underground heating networks that distribute residual heat from industrial sources (e.g., Port of Rotterdam) and geothermal energy to residential and commercial buildings. Targeted at heat network developers and operators such as HVC, WarmtelinQ, and Trias Westland.
• Sleufloze technieken (Trenchless Techniques) No-dig drilling methods including HDD (Horizontal Directional Drilling), Direct Pipe, closed-front drilling, and soil ploughing to install underground infrastructure with minimal surface disruption. Enables pipeline and cable installation beneath rivers, urban areas, dunes, and ecologically sensitive zones.

Quantifiable outcome

• First fully emission-free H2DD drilling (hydrogen-powered), November 2024
• +4 more outcomes

Named customers12 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

21 partnerships are on record, tiered core and minor.

• WarmtelinQcoreStrategic or Co-development Partner · 29 October 2025A.Hak was awarded Lot A, Lot B, and Lot D of the WarmtelinQ heat pipeline project (Vlaardingen to The Hague) and subsequently signed the contract for the Rijswijk-Leiden section (25 km) together with Hanab Pipelines & Industry. This is a flagship infrastructure project utilizing residual heat from the Port of Rotterdam to heat 120,000 homes.
• Defense Pipeline Organization (DPO)minorStrategic or Co-development Partner · 13 March 2024A four-year framework agreement with DPO for excavating, inspecting, repairing detected defects, carrying out relocations, repairing shallow placements, and related tasks on aviation fuel pipelines. A.Hak is one of three contracted parties.
• TenneTcoreStrategic or Co-development Partner · 21 January 2024A.Hak and TenneT collaborated on a world-first hydrogen-powered drilling (H2DD) for high-voltage cable undergrounding in Bergen op Zoom. TenneT is a key grid operator client pushing for emission-free construction, with CEO Manon van Beek signing the 'Clean and Emission-free Construction' covenant. A.Hak has also collaborated with Van Gelder on similar drilling projects.
• GasuniecoreStrategic or Co-development Partner · 20 January 2024A.Hak and Gasunie signed a 10-year framework agreement covering maintenance and management of existing natural gas pipelines and construction of new pipelines for hydrogen, green gas, and CO2. The agreement is part of a strategic partnership approach with six contracted companies, focusing on safety, emission-free working, and social responsibility. This is a flagship, core partnership for A.Hak.
• HVCcoreStrategic or Co-development PartnerA.Hak works with HVC (sustainable waste management company for 52 municipalities) on district heating projects including the 1,200-meter steel-in-steel pipeline pull-in in Sliedrecht and geothermal energy infrastructure. Collaboration involves construction teams with Rotterdam Engineering.
• PWNcoreStrategic or Co-development PartnerPWN (Waterleidingbedrijf Noord-Holland) partnered with A.Hak on the first fully electric directional drilling for a drinking water transport pipeline (1,050m, 800mm diameter) through a protected dune area. A.Hak deployed its 150t electric HDD rig for this sustainability-driven project.
• LiandercoreStrategic or Co-development PartnerA.Hak collaborates with Liander on electricity grid reinforcement projects including the Helix Program in North Holland North (Anna Paulowna grid expansion with 9 km of new medium-voltage ring connections) and hydrogen drilling at Koegras. Also collaborated on the Oudehaske cluster project with 24 directional drillings.
• AlliandercoreStrategic or Co-development PartnerA.Hak has long-term contracts with Alliander (parent of Liander) involving 6-year agreements with options to extend. Collaboration focuses on organizing work in flow, grid expansion, and long-term planning to meet the massive electricity network reinforcement challenge.
• EnexiscoreStrategic or Co-development PartnerA 12-year strategic partnership 'solo Brabant' and a separate 12-year contract in Zuid-Limburg with Enexis for medium voltage connections and network infrastructure. A.Hak works across multiple regions for Enexis including Dinteloord and Etten-Leur projects.
• StedincoreStrategic or Co-development PartnerA.Hak carries out network expansion projects for Stedin including the Hallum-Hijum green gas connection project and Hallum network expansion for connecting Stedin and Liander networks. Stedin awarded A.Hak Infranet the Safety Award 2026.
• Hanab Pipelines & IndustrycoreStrategic or Co-development PartnerA.Hak and Hanab jointly signed the contract with WarmtelinQ for the construction of the heat transport pipeline between Rijswijk and Leiden. The partnership combines A.Hak's pipeline construction expertise with Hanab's capabilities.
• Rotterdam EngineeringcoreImplementation/ SI/ Consulting PartnerA.Hak works in a construction team with HVC and Rotterdam Engineering for district heating projects including the Sliedrecht pipeline pull-in operation. Rotterdam Engineering provides the engineering design that A.Hak executes.
• VitenscoreStrategic or Co-development PartnerA.Hak partnered with Vitens on the new well field project in Ypelo and water supply network at Wierden production facility, involving 18 horizontal directional drillings totaling approximately 3,900 meters. Collaboration included coordination with Rijkswaterstaat on the N35 highway doubling project.
• GenpowercoreTechnology or IntegrationGenpower provided the hydrogen generator for the world's first H2DD drilling project. The collaboration enables direct power supply from green hydrogen to the drilling rig, with battery pack supplementation during higher power demand.
• Kuster Energy / HolthauzencoreTechnology or IntegrationKuster Energy and Holthauzen supplied green hydrogen for the world's first H2DD drilling project in collaboration with TenneT and A.Hak, enabling fully emission-free drilling operations.
• De Omgevingsverbinder / De OmleidingminorImplementation/ SI/ Consulting PartnerStakeholder management partners for the Sliedrecht district heating project, handling communication and coordination with local communities during the complex pull-in operation near the Lower Merwede.
• Trias WestlandcoreStrategic or Co-development PartnerA.Hak installed the heat network pipelines for Trias Westland's geothermal energy project in the Westland greenhouse horticulture region, extracting heat from 2,700 meters depth to supply 49 growers, achieving approximately 30% cost savings through construction team collaboration.
• HerrenknechtcoreTechnology or IntegrationHerrenknecht manufactured the tunnel boring machine (TBM) used in the Direct Pipe drilling projects, including the 1,100-meter landfall on the Israeli coast. Herrenknecht sent congratulations via a Breakthrough Notice for the successful execution.
• RijkswaterstaatminorOthersRijkswaterstaat coordination was required for multiple projects where A.Hak's infrastructure work overlapped with government infrastructure projects (N35 highway doubling, canal management), requiring permits and schedule alignment.
• A.Hak ElectroncoreStrategic or Co-development PartnerIntra-company collaboration within A.Hak group: A.Hak Electron provided electric cable transporters and cable pulling calculations for the Dinteloord medium voltage project for Enexis.
• A.Hak DrillconcoreStrategic or Co-development PartnerIntra-company collaboration: A.Hak Drillcon provided drilling expertise and the 80-ton electric drilling rig for the Dinteloord medium voltage connections project for Enexis.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Spiecapag: International pipeline construction subsidiary of Eiffage, active in onshore oil, gas, and energy-transition pipelines across Europe; comparable to A.Hak on large-diameter transmission pipeline work and Direct Pipe landfalls.
• Visser & Smit Hanab (Hanab Pipelines & Industry): Dutch specialist pipeline and cable construction contractor (part of VolkerWessels); direct competitor for utility trenchless and pipeline projects in the Netherlands. A.Hak has already partnered with Hanab on the WarmtelinQ heat pipeline, highlighting head-to-head positioning on flagship Dutch infrastructure tenders.
• Denys Group: Belgian family-owned contractor specializing in pipelines, cable infrastructure, and complex civil works across the Benelux; directly comparable in size, scope, and trenchless-technology focus to A.Hak, with overlapping Dutch utility clients.
• Nacap: Dutch-origin pipeline construction specialist with operations in the Netherlands and Australia; competes directly with A.Hak on transmission pipeline tenders and HDD work for gas, water, and energy-transition infrastructure.
• Van Gelder Groep: Dutch civil engineering and underground infrastructure contractor active in cables, pipelines, and district heating; competes with A.Hak on similar framework agreements with Dutch DSOs and water authorities.
• SADE CGTH: French pipeline and utility network construction specialist (Suez group); comparable to A.Hak on water, gas, and district-heating network construction and trenchless technology deployment across European utilities.

Broad incumbents

• Royal BAM Group: One of the largest Dutch construction groups; BAM Infra competes with A.Hak on underground utility, cable, and pipeline framework agreements as part of a much broader portfolio including buildings and civil infrastructure.
• Heijmans: Major Dutch construction and infrastructure company with utility, cable, and energy-transition projects; competes with A.Hak for DSO and municipal underground infrastructure contracts as part of a diversified portfolio.
• VolkerWessels: Large Dutch construction group whose subsidiaries (including Visser & Smit Hanab) compete directly with A.Hak on pipeline and utility infrastructure tenders across the Netherlands.

Others

• Herrenknecht AG: German manufacturer of tunnel boring machines and trenchless technology equipment (including Direct Pipe). Functions as a key technology supplier to A.Hak and as an enabler/ecosystem participant rather than a direct construction competitor.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/ahak

Compliance13 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles14 records

Subsidiaries6 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 a.hak