What Offshore Solutions Group Limited does

Offshore Solutions Group (OSG) is a UK-based private infrastructure developer founded in 2020 by Will Rowley that has pioneered dedicated wet storage infrastructure for floating offshore wind (FLOW). The company develops FLOW-Parks™ — purpose-built offshore locations with pre-installed moorings, anchors, and a proprietary Management & Control System (M&CS) that provides temporary safe anchorage for large FLOW foundation units (approximately 100m x 100m, ~6,000 tonnes) during assembly, integration, and installation phases. The M&CS comprises self-powered safety and security buoys with advanced sensor suites, specialist FLOW-Monitors fitted to each parked asset, and a 24/7/365 manned local control centre operating in coordination with harbour masters, coastguard, and regulatory bodies. OSG has also developed proprietary processes, systems, and software for site identification, with a three-year survey of the UK coastline covering over 200 potential locations and a detailed assessment of over 35 priority sites via the TS-FLOW Joint Industry Project with HR Wallingford.

OSG's primary customers are floating wind developers (targeting 1GW+ projects across ScotWind, INTOG, and Celtic Sea leasing rounds), port operators and construction yards needing to extend marshalling capacity beyond quayside limits, and EPC(I)/T&I contractors requiring integrated logistics support. The company operates three revenue streams: managed wet storage services (fee-for-service storage of FLOW foundation units during construction phases), advisory and support services (consulting on wet storage requirements, site suitability, operational planning, and interface management), and full lifecycle FLOW-Park development and licensing (consenting, licensing, construction, operation, and decommissioning). Pricing is not publicly disclosed and contracts are project-based and expected to be multi-year. OSG is currently developing two FLOW-Parks — the Moray FLOW-Park in Scotland's Moray Firth (Stage 2: Development, 35% complete, targeting construction readiness in 2027, estimated £126m total GVA, ~60 permanent local jobs) and the Celtic Sea FLOW-Park in SW England (Stage 1: Pre-development, 20% complete, with a 3-year exclusivity agreement with a Statutory Harbour Authority port).

OSG holds formal recognition from the UK Government (DESNZ Clean Industry Bonus under CfD AR7), SOWEC Strategic Investment Model, Renewable UK FLOW Taskforce Industry Roadmap 2040, The Crown Estate, Crown Estate Scotland, and the Scottish Government. Beyond the core FLOW-Park business, OSG leads the UK FLOW Forward industrial consortium with Wilton Group, CRC-Evans Group, and SeAH Wind targeting approximately 2GW/yr of serial FLOW unit production capacity, and has secured £500,000 of investment from Setec (September 2025) plus grant support from Scottish Enterprise. The leadership team comprises Founder/CEO Will Rowley (30 years offshore energy strategy), CFO Kate Page (formerly CEO of Baillex and senior researcher at Infield Systems), CCO Shane Woodroffe (formerly CFO of Rezolv Energy), and CTO Martin Goodlad (29 years in floating asset design and installation).

Name

Offshore Solutions Group Limited

Legal name

Offshore Solutions Group Ltd.

Website

https://offshoresolutionsgroup.com

Company type

Private

Founded year

2020

Operating status

Operating

Headcount range

1–10 employees

Short description

OSG is a UK-based infrastructure developer founded in 2020 that builds FLOW-Parks™ — purpose-built offshore wet storage facilities for floating wind foundation units. It serves floating wind developers, port operators, and EPC(I)/T&I contractors with two active projects in Scotland and the Celtic Sea.

Ownership category

akta.pro rank

Product category

Offshore Wind Wet Storage Infrastructure

NAICS

Support Activities for Water Transportation (4883), Port and Harbor Operations (488310)

SIC

Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Marine & Offshore Wind BOP Construction (Foundations, Cables, Ports, Installation Support) (EUAMAFAI)

akta.pro secondary industries

Offshore Wind Substructures & Marine Engineering (Monopiles, Jackets, Floating) (EUAMACAE), Marine & Offshore Energy O&M (Offshore Wind, Platforms, Subsea Assets) (EUAEAGAO), Wind Farm Development & Permitting (Greenfield/Brownfield) (EUACAFAE)

Keywords

• Wet storage infrastructure
• Floating offshore wind
• Marine logistics services
• Offshore wind development
• Wind farm foundations

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. FLOW-Park Wet Storage Services: Revenue generated from providing temporary wet storage services to floating wind developers and port operators. FLOW-Parks offer seasonal, fee-for-service storage capacity for foundation units during assembly, integration, and installation phases. Developers and port operators pay for access to storage infrastructure to optimise their logistics chains.
2. Advisory & Support Services: Fees charged to FLOW project owners, developers, and port operators for wet storage requirements advice, site suitability assessments, operational planning, and support to EPC(I), T&I, technical, commercial and financial specialists on wet storage requirements within integrated logistics planning including interface management, commercial contracting and operational delivery.
3. FLOW-Park Development & Licensing: Revenue from full lifecycle development of FLOW-Parks — consenting, licensing, construction, operation and decommissioning — from initial survey through to operational readiness. This includes seabed agreements with Crown Estate/Crown Estate Scotland, EIA programmes, and marine licensing.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

OSG develops and operates FLOW-Parks™, purpose-built offshore wet storage facilities providing temporary safe anchorage for floating offshore wind foundation units (approximately 100m x 100m, ~6,000 tonnes) during construction, assembly, integration, and installation phases. The company also delivers advisory and lifecycle development services covering site suitability, consenting, licensing, construction, operation, and decommissioning of FLOW-Park facilities for floating wind developers, port operators, and EPC(I)/T&I contractors.

Product overview

Offshore Solutions Group Limited offers a portfolio of floating offshore wind infrastructure products and services centered on FLOW-Parks™ — purpose-built wet storage facilities providing temporary safe anchorage for FLOW foundation assets during construction, assembly, and integration phases. The core offering consists of the FLOW-Parks™ themselves, complemented by a proprietary Management & Control System (M&CS) for safety and monitoring, advisory and development support services, and two specific projects: the Moray FLOW-Park in Scotland and the Celtic Sea FLOW-Park in SW England. Additional initiatives include the UK FLOW Forward serial production consortium and the TS-FLOW Joint Industry Project with HR Wallingford.

Differentiator

Problem solved

Functional benefit

Brands

• FLOW-Parks™: Purpose-built offshore facilities for floating wind wet storage, providing temporary safe anchorage for FLOW foundation base units during assembly, integration and deployment processes.

Products and services

• FLOW-Parks™ Wet Storage Services Fee-for-service wet storage at FLOW-Parks™ providing temporary safe anchorage for floating offshore wind foundation units (approximately 100m x 100m, ~6,000 tonnes) during assembly, integration, and installation phases. Each FLOW-Park features pre-installed moorings, anchors, a proprietary Management & Control System (M&CS), and 24/7/365 manned operations, and is offered to floating wind developers, port operators, and construction yards on seasonal, capacity-based, or multi-year terms.
• Advisory & Support Services Consulting services for FLOW project owners, developers, and port operators on wet storage requirements, site suitability assessments, and operational planning. Includes support to EPC(I), T&I, technical, commercial, and financial specialists on wet storage requirements within integrated logistics planning, interface management, commercial contracting, and operational delivery.
• FLOW-Park Development and Installation Support Full lifecycle development services for FLOW-Park facilities covering consenting, licensing, construction, operation, and decommissioning, from initial survey through to operational readiness. Includes seabed agreements with Crown Estate/Crown Estate Scotland, EIA programmes, marine licensing, mooring system and anchor procurement, and installation of monitoring infrastructure.
• Moray FLOW-Park Wet storage facility in the Moray Firth, Scotland, providing temporary seasonal wet storage for FLOW foundation units. Currently in Stage 2: Development with an EIA programme underway; target is full permitting for construction in 2027. Estimated £126m total project GVA, approximately £82m local/regional value, and around 60 permanent full-time local jobs during operations. Held under a two-year Crown Estate Scotland seabed exclusivity agreement (signed April 2025) via OSG and its Scottish-registered subsidiary FLOW-Park Investment Ltd.
• Celtic Sea FLOW-Park Pre-development wet storage facility in SW England / Celtic Sea to provide critical infrastructure support to regional ports and harbours and their floating wind ambitions. Currently in Stage 1: Pre-development assessment (20% complete, 2 of 5 milestones complete) with a 3-year exclusivity agreement signed with a major regional Statutory Harbour Authority port. Next update expected 3Q 2026.

Quantifiable outcome

• Reduces installation schedule risk for utility-scale FLOW projects
• +4 more outcomes

Segments3 records

Ideal customer profiles3 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 core and supporting.

• University of PlymouthcoreStrategic or Co-development Partner · 12 May 2026OSG is working in close partnership with the University of Plymouth to build an evidence-led case for floating offshore wind in the Celtic Sea. The partnership draws on the University's high-performance computing capabilities to run tens of thousands of simulations and detailed logistics assessments with Celtic Sea Power, supported by the Crown Estate, to understand real-world constraints such as weather windows, tidal ranges and port capacity.
• FlylogixsupportingTechnology or Integration · 18 April 2026OSG appointed Flylogix, a pioneering drone firm, to carry out digital aerial surveys for the proposed Moray FLOW-Park wet storage facility in the Moray Firth. This marks Flylogix's first contract in the offshore renewable energy market, building on its established track record supporting North Sea oil and gas operators. Flylogix will deploy state-of-the-art drones to review and map wildlife, providing data to NatureScot as part of OSG's Environmental Impact Assessment submission.
• Celtic Sea PowersupportingStrategic or Co-development Partner · 1 January 2026OSG is working with Celtic Sea Power on integrated logistics studies for the Celtic Sea region, supported by the Crown Estate. The collaboration involves detailed logistics assessments using University of Plymouth's high-performance computing capabilities to understand real-world constraints including weather windows, tidal ranges and port capacity.
• Crown Estate ScotlandcoreOthers · 1 April 2025Crown Estate Scotland granted OSG a two-year seabed exclusivity agreement for areas of seabed in the Moray Firth, confirming the site for the development of the Moray FLOW-Park. The agreement provides a framework for OSG and its Scottish-registered subsidiary, FLOW-Park Investment Ltd, to continue assessing the long-term suitability of the location.
• HR WallingfordcoreStrategic or Co-development Partner · 1 January 2022OSG and HR Wallingford created and delivered the TS-FLOW (Temporary Storage Floating Wind) Joint Industry Project, working with multiple developers, The Crown Estate, and Crown Estate Scotland. HR Wallingford is an independent engineering and physical laboratory organisation providing technical, environmental, and metocean expertise. The TS-FLOW JIP is the world's largest programme focused on temporary wet storage.
• Wilton GroupsupportingStrategic or Co-development PartnerWilton Group, a leading UK fabricator, is part of the UK FLOW Forward industrial consortium led by OSG, developing Europe's largest new serial production facility for floating wind units with capacity to deliver approximately 2GW/yr. The consortium combines OSG's expertise with Wilton Group's fabrication capabilities.
• CRC-Evans GroupsupportingStrategic or Co-development PartnerCRC-Evans Group, the global leader in welding services, is part of the UK FLOW Forward industrial consortium led by OSG. The company contributes advanced welding processes and technology solutions around autonomous welding and large component alignment to deliver efficient and cost-effective serial production of floating wind units.
• SeAH WindsupportingStrategic or Co-development PartnerSeAH Wind is part of the UK FLOW Forward industrial consortium led by OSG, contributing to the development of Europe's largest new serial production facility for floating wind units with approximately 2GW/yr capacity.
• GoBe ConsultantssupportingImplementation/ SI/ Consulting PartnerGoBe Consultants prepared the EIA Screening Report (SCR-0121) for the Moray FLOW-Park, submitted to Marine Directorate Scotland in February 2026. GoBe is assisting OSG with the formal Environmental Impact Assessment programme.
• FLOW-Park Investment LtdsupportingOthersFLOW-Park Investment Ltd is a Scottish-registered subsidiary of OSG that holds the Crown Estate Scotland seabed exclusivity agreement for the Moray FLOW-Park alongside OSG.

Scale indicators10 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Saipem: Italy-headquartered global offshore engineering, drilling and EPCI services company with growing offshore wind exposure including floating wind. Saipem's broad offshore services portfolio and engineering capability make it a potential competitor or partner for FLOW wet storage infrastructure at scale.
• Sif Group: Netherlands-based pure-play offshore wind foundations manufacturer (monopiles and increasingly floating foundation components). Sif is a comparable enabling-infrastructure provider for offshore wind, though focused on the foundations themselves rather than the wet storage logistics layer that OSG serves.
• Van Oord: Netherlands-headquartered marine contractor with extensive offshore wind installation, cable laying and heavy-lift capabilities. Van Oord is one of the closest broad incumbents to OSG given its offshore wind installation work and growing involvement in floating wind logistics — a credible competitor if it enters wet storage directly.
• Subsea 7: Luxembourg/UK-headquartered subsea engineering, construction and offshore services group with extensive offshore wind and SURF project capabilities. Subsea 7 is a broad incumbent in offshore infrastructure delivery with both the engineering depth and project execution experience to enter adjacent infrastructure layers like wet storage.
• Aker Solutions: Norway-headquartered engineering and offshore services company with deep involvement in offshore wind and floating wind substructures through the wider Aker group. Aker Solutions is comparable to OSG as a broad offshore infrastructure provider, though with a much larger and more diversified portfolio.
• Esvagt: Norway-headquartered offshore wind service vessel operator (SOVs) providing operational support infrastructure to offshore wind farms. Esvagt is a comparable infrastructure-layer provider serving the operational needs of offshore wind assets, with similar long-term contracted revenue characteristics to a future FLOW-Park operating model.
• DEME: Belgium-based global offshore installation, marine engineering and dredging group with substantial offshore wind EPCI capability. DEME is a broad incumbent in offshore wind infrastructure services — a logical competitor or partner if wet storage moves from a niche offering to a wider logistics requirement of the FLOW market.
• Smulders: Belgium-based steel construction company with significant offshore wind foundations and substations business, including floating wind jacket foundations. Smulders is a comparable offshore wind infrastructure provider, addressing a different but adjacent layer of the FLOW value chain.

Direct peers

• BW Ideol: France-based floating offshore wind technology company with its own float and mooring designs and project pipeline. BW Ideol sits in the same enabling-infrastructure layer for floating wind as OSG, with a comparable focus on making FLOW projects bankable through proprietary technology and project development expertise.
• Principle Power: US/Portugal-based floating offshore wind foundation designer (WindFloat technology). Both companies are enabling-infrastructure providers for floating wind — Principle Power designs the floating foundations themselves, while OSG provides the wet storage infrastructure those foundations need between construction and installation. They are complementary pieces of the same FLOW value chain.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/offshore-solutions-group

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries1 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 Offshore Solutions Group Limited