a.hak
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.
- Company typePrivate
- Founded1963
- HeadquartersTricht, Netherlands
- Headcount251–500
- GTM typeB2B
- OfferingServices
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.
a.hak firmographics
Firmographics- 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
a.hak industry classification
Industry- 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
Where a.hak is headquartered
LocationHeadquarters
- HQ city
- Tricht
- HQ country
- Netherlands
- HQ region
- Europe
Offices6 records
Markets served
a.hak business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Infrastructure, Marketing or Sales, Technology or R&D, Supply Chain
Revenue model
- 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.
- 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.
- 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
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Project-based infrastructure construction contracts |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels6 records
a.hak product offering
Product offeringCore 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
Companies that use a.hak
Customer profileNamed customers12 records
Segments5 records
Ideal customer profiles5 records
a.hak technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
a.hak partnerships and signals
Strategic signalPartnerships
21 partnerships are on record, tiered core and minor.
- WarmtelinQcoreA.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)minorA 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.
- TenneTcoreA.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.
- GasuniecoreA.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.
- HVCcoreA.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.
- PWNcorePWN (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.
- LiandercoreA.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.
- AlliandercoreA.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.
- EnexiscoreA 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.
- StedincoreA.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 & IndustrycoreA.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 EngineeringcoreA.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.
- VitenscoreA.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.
- GenpowercoreGenpower 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 / HolthauzencoreKuster 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 OmleidingminorStakeholder 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 WestlandcoreA.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.
- HerrenknechtcoreHerrenknecht 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.
- RijkswaterstaatminorRijkswaterstaat 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 ElectroncoreIntra-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 DrillconcoreIntra-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
a.hak competitors and assessment
Company assessmentDirect 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
a.hak social profiles
Digital presencea.hak compliance and trust
Trust signalCompliance13 records
a.hak financial estimates
Financial estimateRevenue estimate
Valuation estimate
a.hak leadership team
Management profileNumber of profiles
Profiles14 records
a.hak subsidiaries and ownership
Company hierarchySubsidiaries6 records
a.hak funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
a.hak M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about a.hak
What does a.hak do?
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.
Is a.hak a public or private company?
a.hak is a private company. It is classified as family owned and is currently operating.
When was a.hak founded?
a.hak was founded in 1963. It employs 251 to 500 people.
Where is a.hak based?
a.hak is headquartered in Tricht, Netherlands, in the Europe region.
How does a.hak make money?
Three revenue lines are on record. Infrastructure Construction Projects are the primary driver. The others are long-term Framework Agreements and operational Maintenance & Decommissioning.
Who are a.hak's main competitors?
Direct peers on record are Spiecapag, Visser & Smit Hanab (Hanab Pipelines & Industry), Denys Group, Nacap, Van Gelder Groep and SADE CGTH. Broad incumbents are Royal BAM Group, Heijmans and VolkerWessels. Herrenknecht AG is listed as an others.
Does a.hak have an API?
No public API is recorded for a.hak.
What industry is a.hak in?
a.hak's product category is Underground Infrastructure Construction. Its primary akta.pro industry code is TLAGAEAI, NGL/LPG Trunkline / Transmission Pipelines (Interstate/Long-Haul), with a secondary code of EUAJAEAB, Distribution System Engineering & Design (Mains/Services/Stations). Its NAICS code is 2371 and its SIC code is 1623.