SealteQ

Name

SealteQ

Legal name

SealteQ

Website

https://sealteq.nl

Company type

Private

Founded year

1972

Operating status

Operating

Headcount range

101–250 employees

Ownership category

akta.pro rank

Product category

Concrete and Steel Protection Services

NAICS

Other Foundation, Structure, and Building Exterior Contractors (238190), Building Finishing Contractors (2383), Structural Steel and Precast Concrete Contractors (238120)

SIC

Construction - Special Trade Contractors (1700)

akta.pro primary industry

Concrete Repair, Sealing & Waterproofing (Coatings/Membranes) (IMAIAKAK)

akta.pro secondary industries

Concrete Crack Repair & Sealing (HSAGALAA), Sealants (Construction & Industrial) (IMAEAGAI)

Keywords

• Concrete repair services
• Steel preservation services
• Structural renovation
• Cathodic protection
• Ground stabilization

Headquarters

HQ city

Stadskanaal

HQ country

Netherlands

HQ region

Europe

Offices16 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Specialized Construction Services: Service-based revenue from concrete and steel renovation, repair, protection, and conservation services. Projects range from small repairs to large-scale infrastructure projects. Revenue generated through direct project work, inspections, and advisory services.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

SealteQ Group is a Dutch specialized contractor that protects, repairs, and extends the lifespan of concrete and steel structures through 35 in-house specialisms including concrete repair, concrete injection, coating, cathodic protection, carbon reinforcement, shotcrete, steel preservation, foundation restoration, and ground stabilization. Services are delivered on-site by approximately 700 certified specialists across 20 locations serving infrastructure, industrial, government, healthcare, commercial real estate, and residential property management clients. Revenue is generated through project-based professional service contracts following free inspection and customized quote.

Product overview

SealteQ Group is a specialized construction maintenance company offering a comprehensive portfolio of 35 distinct services focused on protecting and extending the lifespan of concrete and steel structures. The company operates as a service provider rather than a software product company, delivering solutions through on-site execution by approximately 700 field specialists across 20 locations in the Netherlands. The core service offering centers on concrete repair and renovation (including balcony/gallery renovation, concrete injection, concrete coating, shotcrete, and floor repair), steel preservation (including shot blasting and corrosion protection), and specialized applications (such as cathodic protection, carbon reinforcement, fire-resistant coating, and foundation restoration). SealteQ serves diverse markets including infrastructure (bridges, tunnels, parking garages), industry, energy, healthcare, government, and residential property management, providing both repair and preventive maintenance services.

Differentiator

Problem solved

Functional benefit

Products and services

• Concrete Repair (Betonreparatie) Repair of concrete damage caused by carbonation, chloride intrusion, frost cycles, and mechanical stress using hand-applied mortar, shotcrete, injection, and protective coatings for infrastructure, industrial, and property clients.
• Concrete Renovation (Betonrenovatie) Comprehensive renovation of damaged concrete structures using injection, carbon reinforcement, coating, and cathodic protection to restore structural integrity of infrastructure and buildings.
• Concrete Injection (Betoninjectie) Waterproofing and structural repair technique using injection of resins, hydrophobic chemicals, 2-component epoxy, and SLS polymer foam to seal cracks, waterproof structures, and stabilize foundations.
• Concrete Coating (Betoncoating) Application of protective coatings on concrete structures to prevent degradation from moisture, chemicals, and environmental factors, extending the lifespan of constructions.
• Cathodic Protection (Kathodische Bescherming) Electrochemical technique to prevent and delay corrosion in reinforcement steel within concrete, applied according to CUR 45 and NEN 12696 standards.
• Carbon Reinforcement (Koolstofwapening) Structural strengthening technique using carbon fiber reinforcement applied to concrete exteriors for significant strengthening without additional weight, compliant with NEN 8700 and Building Decree.
• Shotcrete (Spuitbeton) High-pressure application of concrete mixture for repair of vertical or sloped surfaces such as tunnel walls and concrete swimming pools with strong adhesion.
• Balcony and Gallery Renovation (Balkon- en galerijrenovatie) Renovation services for balconies and galleries, addressing concrete damage caused by moisture, reinforcement corrosion, and concrete rot to prevent structural deterioration and extend the lifespan of constructions.
• Foundation Restoration (Funderingsherstel) Restoration and repair of building foundations, often using SLS polymer foam injection for ground stabilization and load-bearing capacity improvement.
• Ground Stabilization (Grondstabilisatie) Injection of SLS polymer foam to stabilize unstable ground under highways, runways, or buildings to increase bearing capacity without causing new subsidence.
• Floor Lifting (Vloerliften) Technique to repair sunken concrete floors by injecting SLS polymer foam underneath to lift the floor back to its original height.
• Underpinning (Ondergrouten) Ground improvement and underpinning techniques for foundation stabilization.
• Steel Preservation (Conservering staal) Steel conservation and protection services, including shot blasting in dedicated cabins, to prevent corrosion and extend the life of steel structures.
• Steel Preservation Cabin (Staalconservering cabine) Shot blasting and steel preservation services performed in dedicated blast cabins in Bergum.
• Chromium 6 Removal (Chroom 6 verwijderen) Specialized removal of chromium 6 contamination from steel structures, compliant with safety and environmental regulations.
• Fire-Resistant Coating (Brandwerende coating) Application of fire-resistant coatings that protect concrete and steel structures against critical temperatures for extended periods.
• Industrial/Commercial Floors (Bedrijfsvloeren) Industrial floor solutions including liquid-tight floors, anti-static floors, plastic/PVC floors, and high mechanical load-bearing slurry systems for factories, warehouses, and commercial spaces.
• Cast Floors (Gietvloeren) Seamless floor systems including PU gietvloeren, Arturo EP2500 gietvloeren, and Metalufloor design gietvloeren for industrial and commercial applications.
• Wear Layers (Slijtlagen) Application of wear-resistant layers on floors and surfaces subject to heavy mechanical loading and traffic.
• Manta Floors (Mantavloeren) Specialized floor solutions for specific industrial applications.
• Kwaaitaal Floor Reinforcement (Kwaaitaalvloeren) Structural reinforcement for Kwaaitaal precast concrete floors susceptible to carbonation and reinforcement corrosion.
• Loading Dock Coating (Laadklep en laaddock coating) Protective coating solutions for loading docks and truck loading platforms.
• Basement Waterproofing (Kelderafdichting) Waterproofing solutions for basements and below-ground structures to prevent moisture ingress and water damage.
• Cable Penetrations (Kabeldoorvoeringen) Sealing and waterproofing solutions for cable penetrations through concrete structures.
• Joint Transitions (Voegovergangen) Installation and repair of expansion joints and joint transitions in concrete structures.
• Parking Garages (Parkeergarages) Complete renovation and protection services for parking structures including floor repair, coating, and structural strengthening.
• Facade Renovation (Gevelrenovatie) Renovation and restoration of building facades to address concrete damage and improve structural integrity.
• Swimming Pools (Zwembaden) Renovation and waterproofing of swimming pools including concrete repair and protective coating applications.
• Earthquake Damage Repair (Schadeherstel aardbevingen) Specialized repair and strengthening of structures damaged by seismic activity.
• Civil Engineering Structures (Kunstwerken) Maintenance and renovation of civil engineering structures such as bridges, viaducts, and tunnels.
• Heritage Restoration (Erfgoed) Conservation and restoration services for heritage buildings and monuments, preserving historical structures while maintaining their original character.
• Residential Concrete (Woonbeton) Decorative and functional concrete solutions for residential applications.
• Hospitality/Food Service Floors (Horecavloeren) Floor solutions for restaurants and hospitality venues, meeting hygiene and durability requirements.
• Office Floors (Kantoorvloeren) Floor solutions for office environments combining functionality with aesthetic requirements.
• Store Floors (Winkelvloeren) Floor solutions for retail spaces with emphasis on durability and appearance.
• Underground and Above-ground Piping (Onder- en bovengronds leidingwerk) Installation and maintenance of underground and above-ground piping systems with concrete encasing and protection.

Quantifiable outcome

• 80% of customers return for additional projects
• +2 more outcomes

Named customers7 records

Segments7 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators6 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Mapei S.p.A. Italian construction chemicals manufacturer with extensive concrete repair and structural strengthening product lines including carbon fiber systems. Directly comparable in cathodic protection, carbon reinforcement, and concrete injection technologies SealteQ applies.
• BASF Master Builders Solutions: BASF's construction chemicals division offering concrete repair, waterproofing, and protection systems. Comparable in product/application overlap with SealteQ's coating, injection, and cathodic protection services, though operates as a materials manufacturer rather than a specialty contractor.
• Fosroc International: International specialty chemicals supplier focused on concrete repair, grouts, sealants, and protective coatings. Comparable as a broad incumbent serving similar end-uses (infrastructure, industrial floors, waterproofing) as SealteQ's service portfolio.
• Sika AG: Global construction chemicals and sealants giant. Comparable to SealteQ as a broad incumbent supplying concrete repair mortars, injection resins, coatings, and waterproofing systems, though at much larger scale and via distribution rather than direct contracting.
• Remmers GmbH: German specialty manufacturer of construction chemicals, sealants, and concrete protection systems. Comparable to SealteQ in heritage restoration (erfgoed), concrete repair, and steel preservation product offerings, particularly relevant given geographic proximity to the Netherlands.
• Saint-Gobain Weber: Saint-Gobain's facade and concrete repair systems brand. Comparable in facade renovation (gevelrenovatie), concrete repair (betonreparatie), and structural repair applications that overlap with SealteQ's specialism portfolio.

Regional players

• Heijmans N.V. Large Dutch construction and infrastructure company with maintenance and renovation divisions. Comparable as a Dutch regional player serving infrastructure (bridges, viaducts), housing associations, and government clients — overlapping customer base with SealteQ though at much broader construction scale.
• BAM Groep N.V. Major Dutch construction group with specialty maintenance and infrastructure services. Comparable as a Dutch regional incumbent serving infrastructure, parking garages, and commercial real estate — competing for similar project work though operating at substantially larger scale across general construction.
• KWS Infra (VolkerWessels): VolkerWessels subsidiary specializing in Dutch road, pavement, and infrastructure construction and maintenance. Comparable for bridge, tunnel, and viaduct maintenance work (kunstwerken) that overlaps with SealteQ's infrastructure service line.

Emerging players

• ISOPARTNER Nederland: Dutch specialist contractor focused on concrete repair, injection, and structural strengthening. Comparable as a direct service peer in the Dutch concrete repair market, applying similar injection and coating techniques though with smaller scale than SealteQ.

Market position

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/SealteQGroup
• Facebookfacebook.com/SealteQGroup
• LinkedInlinkedin.com/company/sealteq-group

Compliance9 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries17 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 SealteQ