ONP Management

What ONP Management does

ONP Management GmbH is a Hamburg-based engineering consultancy, founded in 2014 as part of the Zech Group, specializing in technical and commercial project management for offshore wind farms, marine infrastructure, and (more recently) offshore green hydrogen projects. The firm serves enterprise clients — primarily offshore wind developers, project owners, port authorities, government infrastructure agencies, and project finance lenders — and delivers end-to-end services across the project lifecycle: development, permitting, due diligence, design and certification, tender management, construction/installation management, and O&M phase support. Headcount is described as more than 35 employees, with senior staff averaging 12+ years of individual experience and a collective track record of more than 4,500 MW of offshore wind development and installation.

The company's service portfolio is anchored by two proprietary/strategic offerings: (1) FEEDERDOCK, a patented (EU and US patents granted in 2024) Jones Act compliant global marine logistics solution pairing a U-shaped heavy lift jack-up installation vessel with self-propelled feeder vessels to enable fixed-to-fixed component transfers for next-generation 25+ MW turbines; and (2) Northsea Hydrogen, an offshore green hydrogen platform developed through ONP's stake in the NorthH2 Projektgesellschaft consortium (PEM electrolysis, seawater desalination, hydrogen storage/injection infrastructure). The remaining business is professional services billed on multi-year, project-based contracts with custom pricing negotiated per scope.

ONP distributes its services through direct enterprise sales, tenders, and industry referrals across DACH, the Nordics (notably Denmark's Thor project), East Asia (Taiwan, Japan), the Middle East (Saudi Arabia), and the Caribbean. Logistics and marketing rely on a LinkedIn presence, a YouTube channel, and a website publishing detailed case studies. The company operates under ISO 9001:2015 quality management certification and received the PFI "Europe Renewables Deal of the Year 2015" award for its Gode Wind 1 Lenders Technical Advisor role. It is privately held under the Zech Group with managing directors Martin Rahtge and Knud Grimm, and has no publicly disclosed revenue.

Name

ONP Management

Legal name

ONP Management GmbH

Website

https://onp-management.com

Company type

Private

Founded year

2014

Operating status

Operating

Headcount range

11–50 employees

Short description

ONP Management is a Hamburg-based engineering consultancy providing technical and commercial project management services for offshore wind farms, marine infrastructure, and offshore green hydrogen projects. It serves enterprise clients across development, installation, and O&M phases globally.

Ownership category

akta.pro rank

Product category

Offshore Wind and Marine Infrastructure Engineering Consulting

NAICS

Wind Electric Power Generation (221115), Environmental Consulting Services (54162)

akta.pro primary industry

Asset Management & Owner’s Engineering (Lifecycle Strategy, Budgeting, Technical Due Diligence) (EUAMAGAJ)

akta.pro secondary industries

Offshore Wind Project Development & Leasing (EUAMACAB), Marine & Offshore Wind BOP Construction (Foundations, Cables, Ports, Installation Support) (EUAMAFAI), Permitting, Siting & Environmental Impact (EIA/NEPA) Advisory (EUAMANAB), Marine & Offshore Energy O&M (Offshore Wind, Platforms, Subsea Assets) (EUAEAGAO)

Keywords

• Offshore wind consulting
• Marine infrastructure engineering
• Offshore project management
• Lenders technical advisory
• Green hydrogen development

Headquarters

HQ city

Hamburg

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Technical Advisory and Consulting Services: ONP generates revenue through providing technical advisory, project management, and consulting services for offshore wind and infrastructure projects. Services include project development support, construction management, due diligence, owner's engineering, and lenders technical advisory throughout project lifecycle from development through operation.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

ONP Management provides technical consulting and project management services for offshore wind, marine infrastructure, and green hydrogen projects. Core offerings include owner's engineering, lender's technical advisory, construction management, due diligence, and installation management across the offshore wind project lifecycle from development through operations and maintenance. The company also develops proprietary installation logistics solutions such as FEEDERDOCK and holds a shareholder position in the NorthH2 offshore green hydrogen project.

Product overview

ONP Management offers a portfolio of specialized services and proprietary solutions for the offshore wind, marine infrastructure, and green hydrogen sectors. The core offering includes FEEDERDOCK, a patented Jones Act compliant installation logistics system, and the Northsea Hydrogen platform for offshore electrolysis. These are complemented by integrated project management competencies covering the full project lifecycle from development through construction to operations and maintenance.

Differentiator

Problem solved

Functional benefit

Brands

• FEEDERDOCK: Jones Act compliant global marine logistics solution for offshore wind installation, featuring a unique low-draft feeder vessel design enabling access to smaller staging ports. Developed by consortium led by ONP Management and Renewable Resources International.

Products and services

• Offshore Wind Project Management Services Comprehensive project management services for offshore wind farm development, construction, and operation, including technical advisory, installation management, owner's engineering, and lender's due diligence, delivered to enterprise offshore wind developers, operators, and financial institutions.
• Marine Infrastructure Engineering Services Project management and engineering services for complex civil infrastructure projects including tunnels, bridges, ports, and marine construction, delivered to government agencies, port authorities, and infrastructure owners.
• FEEDERDOCK Installation Logistics Solution Jones Act compliant global marine logistics solution for offshore wind installation featuring a U-shaped heavy lift jack-up installation vessel paired with self-propelled feeder vessels that dock inside the installation vessel before jacking up as one unit, enabling secure fixed-to-fixed component transfers for offshore wind projects requiring access to smaller staging ports.
• Northsea Hydrogen Project Platform Offshore hydrogen production platform project developing scalable electrolysis platforms for green hydrogen generation in the North Sea using PEM technology, seawater desalination, and hydrogen storage and injection infrastructure, delivered to companies developing offshore green hydrogen production.

Quantifiable outcome

• Team involved in more than 4,500 MW of offshore wind development and installation

Named customers12 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Ten partnerships are on record, tiered core and major.

• NorthH2 ProjektgesellschaftcoreStrategic or Co-development PartnerONP Management GmbH is one of four shareholders of NorthH2 Projektgesellschaft, which is developing plants for the production of green hydrogen on the high seas. NorthH2 was founded in early 2022 and has developed a scalable platform concept for offshore electrolysis including PEM technology, seawater desalination, and hydrogen storage/injection infrastructure. The partnership positions ONP as a technical and commercial project manager for offshore hydrogen projects.
• Renewable Resources InternationalcoreStrategic or Co-development PartnerA consortium led by Hamburg-based ONP Management and Boston-based Renewable Resources International developed the Jones Act compliant FEEDERDOCK global marine logistics solution for offshore wind installation. The partnership combines ONP's offshore wind expertise with RRI's US market knowledge to address Jones Act requirements and global installation asset shortages.
• Tractebel OverdickmajorTechnology or IntegrationTractebel Overdick (Hamburg-based) performed the Basic Design for FEEDERDOCK in close cooperation with the consortium, reviewed by American Bureau of Shipping (ABS).
• AtheleoncoreStrategic or Co-development PartnerONP entered a strategic partnership with Atheleon (formerly SAL Renewables), part of Harren & Partner Organisation. The partnership focuses on developing heavy lift jack-up vessels for the international offshore wind market and managing O&M campaigns. ONP supports Atheleon in O&M project leadership for their vessels THOR and WIND LIFT 1.
• Parkwind N.V.majorImplementation/ SI/ Consulting PartnerONP has been providing project management support to Parkwind since July 2018 for the Arcadis Ost 1 offshore wind farm project. Services include design process support, foundation installation package tender coordination, permit amendment procedures, and interface management.
• Taiwan Green Power (TGP)majorImplementation/ SI/ Consulting PartnerONP was mandated as Owner's Engineer for TGP's 600MW Haixia offshore wind farm project in Taiwan (Zone #28). Services include FEED study, energy yield assessment, concept designs, financial evaluation, and technical input for grid connection application.
• Northsea HydrogencoreStrategic or Co-development PartnerNorthsea Hydrogen is the project pipeline developed by NorthH2 for offshore electrolysis projects in the North Sea. ONP is a shareholder in NorthH2 and contributes to technical and commercial project management as well as offshore wind farm development within the project pipeline.
• ClassNKmajorStrategic or Co-development PartnerONP worked with ClassNK to advise a Japanese EPCI contractor on technical and commercial aspects for Japan's first offshore wind auction. ClassNK helped facilitate efficient knowledge transfer between ONP's European expertise and Japanese market requirements.
• Offshore Wind SolutionsmajorStrategic or Co-development PartnerJV partner in O&M projects alongside ONP and Atheleon for heavy lift jack-up vessel operations in German offshore wind farms.
• Wind MultiplikatormajorStrategic or Co-development PartnerJV partner in O&M projects alongside ONP and Atheleon for heavy lift jack-up vessel operations in German offshore wind farms.

Scale indicators2 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• DNV: DNV is the global market leader in offshore wind certification, owner's engineering, and technical advisory. It competes directly with ONP for LTA and owner's engineer mandates on major European and global offshore wind projects, with significantly larger scale and broader service portfolio.
• K2 Management: K2 Management is a Danish-headquartered specialist consultancy providing owner's engineering and technical advisory exclusively to the offshore wind industry. It is one of the closest direct competitors to ONP, serving many of the same European developer clients.
• COWI: COWI is a Danish engineering consultancy with one of the largest dedicated offshore wind practices globally. It provides owner's engineering, design, and project management services directly comparable to ONP's offering, with deep relationships across Northern European developers and similar niche specialization.
• Ramboll: Ramboll is a Danish engineering consultancy with significant offshore wind advisory and owner's engineering capabilities. It serves the same Northern European developer base as ONP and competes for similar mandates on foundations, electrical infrastructure, and project management.
• sgurrEnergy: sgurrEnergy is an independent renewable energy consultancy providing owner's engineering, lenders technical advisory, and energy yield assessment services for wind projects. It competes directly with ONP on bankability and due diligence mandates.
• Tractebel: Tractebel (Engie) is a Belgian-headquartered engineering consultancy with significant offshore wind capabilities, including the Hamburg-based Overdick subsidiary. It competes with ONP for owner's engineering and design mandates and was a key partner in ONP's FEEDERDOCK Basic Design.

Broad incumbents

• Mott MacDonald: Mott MacDonald is a global engineering, management, and development consultancy with significant offshore wind and marine infrastructure capabilities. It serves similar developer and lender clients on owner's engineering and advisory mandates.
• WSP: WSP is a global engineering consultancy with a growing offshore wind advisory practice. It competes with ONP for owner's engineering and environmental permitting mandates, particularly in European and North American markets.
• Bureau Veritas: Bureau Veritas is a global testing, inspection, and certification firm with a dedicated offshore wind advisory business. It overlaps with ONP in certification support, owner's engineering, and technical due diligence for offshore wind project financing.
• Wood: Wood is a global engineering and consulting firm with a sizable offshore wind and renewables practice. While much broader than ONP, it competes for owner's engineering, lenders advisory, and project management mandates on large-scale offshore wind projects worldwide.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@onpmanagement1602
• LinkedInde.linkedin.com/company/onp-management

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 ONP Management