Name

HYDROTECHNIK LÜBECK

Legal name

HYDROTECHNIK LÜBECK GMBH

Website

https://hydrotechnik-luebeck.de

Company type

Private

Founded year

1970

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Product category

Marine Environmental Protection Equipment

NAICS

Support Activities for Water Transportation (4883), Other Support Activities for Water Transportation (48839)

SIC

Ship & Boat Building & Repairing (3730)

akta.pro primary industry

Offshore Wind Substructures & Marine Engineering (Monopiles, Jackets, Floating) (EUAMACAE)

akta.pro secondary industries

Underwater Inspection, Maintenance & Repair (UWILD, Diving/ROV, In-water Cleaning) (IMAJAFAJ), Pollution Control & Environmental Remediation (Booming, Skimming, Shoreline Cleanup) (TLAHAIAH), Underwater Salvage & Diving Operations (UWILD, Cutting, Welding) (IMAJANAD)

Keywords

• Underwater noise mitigation
• Compressed air barriers
• Offshore wind protection
• Marine environmental equipment
• Oil containment barriers

Headquarters

HQ city

Lübeck

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Offshore Noise Mitigation Services: Project-based contracts for underwater noise protection during offshore wind farm construction, including deployment of Big Bubble Curtain systems around pile driving operations.
2. Equipment Supply and Installation: Supply and installation of compressed air barriers, floating barriers, and specialized marine protection equipment for industrial plants, desalination facilities, and harbor authorities.
3. Maintenance and Inspection Services: Ongoing inspection and maintenance services for installed barrier systems, including diving team operations and equipment servicing.
4. Custom Manufacturing: Special custom manufacturing of marine protection equipment for specific project requirements, such as extra-strong floating barriers for reservoirs and dams.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels5 records

Core offering

HYDROTECHNIK LÜBECK manufactures and deploys compressed air underwater barrier systems for marine applications, with the Big Bubble Curtain as its flagship product for underwater noise mitigation during offshore wind farm construction. The company also produces floating barriers for oil containment, flotsam control, jellyfish exclusion, sediment management, and ice prevention, alongside diving team and ROV inspection services for industrial facilities, desalination plants, harbors, and reservoirs.

Product overview

HYDROTECHNIK LÜBECK is a marine environmental protection company specializing in compressed air underwater barrier technology. The core product portfolio centers on the Big Bubble Barrier system for underwater noise mitigation during offshore wind farm construction, complemented by a comprehensive suite of compressed air barriers (oil, flotsam, ice-free, jellyfish, sediment barriers) and floating barriers (oil barriers, diving walls, deflectors). The company also offers industrial protection equipment including oil skimmers and combat systems, along with value-added services such as professional diving teams and ROV inspection services. Products serve offshore wind energy, seawater desalination, harbor protection, and reservoir management sectors across Europe and internationally.

Differentiator

Problem solved

Functional benefit

Brands

• Big Bubble Curtain: The company's signature underwater noise protection system for offshore wind farms and marine construction, using compressed air bubble curtains to reduce underwater sound emissions during pile driving operations.
• Big Bubble Barrier

Products and services

• Big Bubble Barrier (Big Bubble Curtain) Primary underwater noise mitigation system that creates a curtain of air bubbles to reduce hydroacoustic emissions during pile-driving operations for offshore wind farm construction, achieving up to 95% noise reduction and recognized as 'state of the art' in Germany for protecting marine life during construction.
• Druckluft Ölsperre (Compressed Air Oil Barrier) Compressed air barrier system installed on the seabed that creates a vertical water flow to prevent oil spread on water surfaces, used for harbor and industrial facility protection.
• Druckluft Treibgut Sperre (Compressed Air Flotsam Barrier) Compressed air barrier designed to prevent floating debris and driftwood from entering water intake structures at industrial facilities.
• Druckluft Eisfreihaltung (Compressed Air Ice-Free Keeping) Compressed air system that prevents ice formation on water surfaces by creating continuous vertical circulation.
• Druckluft Quallen Sperre (Compressed Air Jellyfish Barrier) Compressed air barrier system that prevents jellyfish from entering seawater desalination plant intakes.
• Druckluft Sediment Sperre (Compressed Air Sediment Barrier) Turbidity barrier system using compressed air to control sediment dispersal during construction or dredging operations.
• Schwimmende Ölsperre (Floating Oil Barrier) Floating barrier system for containing and collecting oil spills on water surfaces, used for both permanent installation and mobile oil combat response.
• Schwimmende Tauchwand (Floating Diving Wall) Floating barrier wall designed for diving operations, providing safe work zones and debris control in aquatic environments.
• Schwimmende Leitanlage (Floating Deflector) Floating guide structure that directs floating materials to collection points for easy removal from water bodies.
• Ölskimmer (Oil Skimmer) Mechanical device for removing oil from water surfaces, part of the mobile oil combat readiness equipment.
• Ölwehrgerät (Oil Weir Equipment) Complete oil combat equipment package including skimmers, floating barriers, and boats for acute oil spill response.
• Sonderanfertigung (Custom Manufacturing) Custom-designed water engineering solutions for special requirements, including bespoke barrier systems such as extra-strong floating debris barriers for reservoirs and dams.
• Tiefenwasser Belüftung (Deepwater Aeration) Underwater aeration system for improving water quality in deep reservoirs and industrial applications.
• Tauchteam (Diving Team) Professional diving team providing inspection, maintenance, and repair services for compressed air barrier systems deployed by the company.
• Remotely Operated Vehicle (ROV) Underwater remotely operated vehicle services for inspection and monitoring of marine installations.

Quantifiable outcome

• Up to 95% underwater noise reduction during pile driving
• +3 more outcomes

Named customers10 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

Ten partnerships are on record, tiered major, supporting, prospective and regulatory.

• Van Oord GruppemajorStrategic or Co-development PartnerGeneral contractor for offshore wind farm construction projects including Deutsche Bucht windpark. HYDROTECHNIK LÜBECK provides noise mitigation services as part of Van Oord's construction operations.
• GeoSea/DEME GroupmajorStrategic or Co-development PartnerResponsible for total installation of Merkur offshore wind park. Awarded environmental protection contract including Big Bubble Barrier deployment to HYDROTECHNIK LÜBECK.
• IHC MerkumsupportingTechnology or IntegrationSupplier of Noise Mitigation System used in combination with Big Bubble Barrier at Merkur windpark for comprehensive underwater noise reduction.
• GS E&C (Seoul)prospectiveStrategic or Co-development PartnerKorean construction company preparing Independent Water Plant project in Oman. Visited HYDROTECHNIK LÜBECK to learn about compressed air barrier technology for potential project application.
• University of HannoversupportingStrategic or Co-development PartnerAcademic partner providing technical expertise during the 2-year development of the Big Bubble Curtain HY75 system with funding from the Federal Ministry for Environment.
• BioConsultsupportingStrategic or Co-development PartnerEnvironmental consulting firm providing expertise during Big Bubble Curtain development, specializing in marine mammal protection and acoustic monitoring.
• ITAPsupportingStrategic or Co-development PartnerTechnical partner contributing expertise during the development phase of the underwater noise mitigation system.
• Bitunamel Feldmann (NOORTRUCK vessel)supportingChannel Partner/ Reseller/ DistributorShip owner providing the NOORTRUCK vessel - a shallow-draft supply vessel used for Big Bubble Barrier deployment in challenging shallow water conditions like Nordergründe wind farm.
• Federal Maritime and Hydrographic Agency (BSH)regulatoryOthersGerman federal authority responsible for approval and monitoring of offshore wind farm projects. Evaluated and documented the effectiveness of noise reduction systems including Big Bubble Curtain.
• Technical Universities (Student Research)supportingStrategic or Co-development PartnerCollaboration with students from various technical universities conducting master's thesis research on hose materials and bubble ascent speeds for continuous system optimization.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• DEME Group: DEME is a major marine contractor through its GeoSea subsidiary that has contracted HYDROTECHNIK for noise mitigation on Merkur windpark. As an incumbent EPCI contractor, DEME controls major offshore wind project pipelines where HYDROTECHNIK's services are specified.
• Reach Subsea: Reach Subsea provides subsea services to offshore energy markets including inspection, construction support, and survey. Their IMR (inspection, maintenance, repair) services overlap with HYDROTECHNIK's diving team and ROV capabilities.
• Van Oord: Van Oord is a leading Dutch marine contractor that serves as general contractor for offshore wind projects including Deutsche Bucht (where HYDROTECHNIK provided noise mitigation). Van Oord's project pipeline drives a significant portion of HYDROTECHNIK's demand.
• Fugro: Fugro is a leading geo-data specialist serving offshore wind developers with site characterization, UXO clearance, and environmental services that intersect with HYDROTECHNIK's pipeline/UXO noise mitigation segment.
• Trelleborg Marine & Infrastructure: Trelleborg supplies a broad portfolio of marine infrastructure products including floating barriers, fenders, and offshore engineering solutions that overlap with HYDROTECHNIK's floating oil barrier and diving wall product lines.
• UTEC (Acteon Group): UTEC, part of Acteon, provides offshore survey and subsea services including underwater inspection for offshore wind projects. Their survey and inspection capabilities are comparable to HYDROTECHNIK's ROV service offering.

Emerging players

• Subsea Tech: Subsea Tech provides underwater inspection and ROV services with partial overlap to HYDROTECHNIK's diving team and ROV service offerings. Both serve offshore and marine infrastructure inspection needs.

Direct peers

• IHC Merkum / Royal IHC: IHC Merkum supplies Noise Mitigation Systems used in combination with HYDROTECHNIK's Big Bubble Barrier at Merkur windpark. Both companies compete for the same noise mitigation line item on offshore wind foundation installation projects.
• AdBm Technologies: AdBm Technologies develops underwater noise mitigation systems for offshore wind pile driving, directly competing with HYDROTECHNIK's Big Bubble Curtain. Both companies target the same monopile installation noise compliance market.
• Bionic Porpoise (Hydro Sound Dampers): Bionic Porpoise developed the Hydro Sound Damper technology as an alternative to bubble curtains for offshore wind noise mitigation. The two technologies compete head-to-head for project specification on European offshore wind farms.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/hydrotechnik33
• LinkedInlinkedin.com/company/hydrotechnik-luebeck

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 HYDROTECHNIK LÜBECK