Temporary Works Design
TWD (Temporary Works Design) is a Rotterdam-based engineering firm founded in 2007 that designs customized mission equipment and temporary works for offshore wind, heavy civils, and heavy lift and transport projects. It serves tier-one contractors and developers globally through integrated multidisciplinary engineering teams.
- Company typePrivate
- Founded2007
- HeadquartersRotterdam, Netherlands
- Headcount101–250
- GTM typeB2B
- OfferingServices
What Temporary Works Design does
TWD (Temporary Works Design) is a Rotterdam-headquartered engineering company founded in 2007 that designs customized mission equipment and temporary works for complex construction projects. The firm operates across three primary markets: Offshore Wind, Heavy Civils, and Heavy Lift & Transport, serving tier-one contractors and developers such as RWE, DEME, Van Oord, Ørsted, BAM, Boskalis, and Balfour Beatty. TWD's portfolio spans monopile installation tooling (piling gates, monopile grippers, the Motion Compensated Pile Gripper for floating wind), jacket lifting tools rated up to 4,000 tonnes SWL, seafastening systems for 7–11 metre monopiles, modular immersion equipment for tunnels and caissons, and launching girders for marine civil infrastructure.
The company's core offering is built around eight integrated engineering disciplines delivered in-house: method engineering, structural and mechanical design, marine engineering, geotechnical engineering, drive and control engineering, EPC management, testing and validation, and software engineering. This multidisciplinary integration is the operational backbone of TWD's approach, enabling single-team delivery from concept through detail design. Notable proprietary designs include walking piling gates (which doubled piling rates at the Port of Dover), the Hammock Seafastening system, the lightweight Jacket Lifting Tool (with weight as low as 1.5% of SWL), and the public-facing Spreader Beam Design App for 100–1,000 tonne lifts. TWD also participates in co-development partnerships, notably with Barge Master on motion-compensated systems and with Royal Wagenborg on floating wind blade exchange tooling.
TWD generates revenue through professional services (engineering design, testing and validation) and managed services (EPC management, fabrication supervision, on-site support) delivered on a project-by-project basis. Pricing is quote-based with no public disclosure, consistent with enterprise B2B engineering consulting. The go-to-market is direct enterprise field sales supported by technical whitepapers, downloadable track records by market, project case studies, and selective industry event participation (including the 2017 M&CCE Expo Innovation Award). The firm has executed 100+ projects across Europe, APAC (Australia, Singapore, Hong Kong, Taiwan), MENA (UAE), and North America, and operates with a headcount of 101–250 employees. The company is privately held with no disclosed institutional ownership or external funding rounds.
Temporary Works Design firmographics
Firmographics- Name
- Temporary Works Design
- Legal name
- TWD
- Website
- https://twd.nl
- Company type
- Private
- Founded year
- 2007
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- TWD (Temporary Works Design) is a Rotterdam-based engineering firm founded in 2007 that designs customized mission equipment and temporary works for offshore wind, heavy civils, and heavy lift and transport projects. It serves tier-one contractors and developers globally through integrated multidisciplinary engineering teams.
- Ownership category
- akta.pro rank
Temporary Works Design industry classification
Industry- Product category
- Engineering Services
- NAICS
- Architectural, Engineering, and Related Services (5413)
- SIC
- Services-Engineering Services (8711)
- akta.pro primary industry
- Temporary Works & Shoring (Sheeting, Bracing, Cofferdams) (IMAFAKAI)
Keywords
Where Temporary Works Design is headquartered
LocationHeadquarters
- HQ city
- Rotterdam
- HQ country
- Netherlands
- HQ region
- Europe
Offices1 record
Markets served
Temporary Works Design business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Engineering Design Services: Multidisciplinary engineering services including method engineering, structural/mechanical design, marine engineering, geotechnical engineering, drive & control engineering, software engineering. Services delivered from concept through detail design phases.
- EPC Management: Project management leveraging multidisciplinary teams, engineering expertise, and supplier network for construction oversight. Includes fabrication supervision and on-site support.
- Testing and Validation Services: Custom tests for transport and installation projects to increase safety, mitigate design uncertainties, and inform procurement decisions.
Go-to-market motion2 records
Distribution channels1 record
Marketing channels5 records
Temporary Works Design product offering
Product offeringCore offering
Temporary Works Design (TWD) is a Rotterdam-based engineering firm that designs customized mission equipment and temporary works for offshore installations, civil infrastructure projects, and vessel retrofits. The company delivers multidisciplinary engineering across method engineering, structural & mechanical design, marine engineering, geotechnical engineering, drive & control engineering, EPC management, testing and validation, and software engineering for clients in offshore wind, heavy civils, and heavy lift & transport markets.
Product overview
TWD (Temporary Works Design) is a creative engineering company that provides method engineering and mission equipment design services. The company operates across three core markets: Offshore Wind, Heavy Civils, and Heavy Lift & Transport. Their service portfolio includes eight core disciplines (Method Engineering, Structural & Mechanical Design, Marine Engineering, Geotechnical Engineering, Drive & Control Engineering, EPC Management, Testing and Validation, and Software Engineering) that combine to deliver integrated solutions. The product offering consists of specialized engineering services and proprietary solutions including Drilling and Piling Equipment, Marine Piling Solutions, Immersion Equipment, Launching Girders, Lifting Equipment, Module Transportation, Seafastening, and Break Bulk Seafastening. TWD also offers a Spreader Beam Design App for quick spreader beam design. The company designs customized mission equipment and temporary works rather than selling off-the-shelf products.
Differentiator
Problem solved
Functional benefit
Products and services
- Method Engineering Engineering service that develops construction methods and execution concepts for complex offshore, civil, and heavy lift projects. Intended for contractors, EPC firms, and asset owners executing large-scale infrastructure works.
- Structural & Mechanical Design Design of temporary structures and mechanical mission equipment to support construction and installation operations. For contractors and developers requiring engineered temporary works.
- Marine Engineering Marine engineering services covering offshore installation challenges, vessel interfacing, and sea-state operational design. Targets offshore wind developers, marine contractors, and vessel operators.
- Geotechnical Engineering Geotechnical analysis and design support for foundations, piling, and ground-engineering challenges tied to temporary works. For heavy civil and offshore piling projects.
- Drive & Control Engineering Design of hydraulic, electrical, and control systems that power and operate mission equipment and temporary works installations. For OEMs and contractors needing integrated drive & control solutions.
- EPC Management Engineering, procurement, and construction management services for temporary works and mission equipment projects, providing single-point accountability from concept to execution.
- Testing and Validation Physical and functional testing services to validate temporary works and mission equipment before deployment on site. For contractors and developers requiring verified, certified solutions.
- Software Engineering Development of engineering and control software supporting temporary works design, drive & control systems, and project execution workflows. For clients and internal engineering teams.
Quantifiable outcome
- Double increase in piling rate achieved with walking piling gate at Port of Dover
- +5 more outcomes
Companies that use Temporary Works Design
Customer profileNamed customers20 records
Segments4 records
Ideal customer profiles3 records
Temporary Works Design technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature6 records
Temporary Works Design partnerships and signals
Strategic signalPartnerships
Seven partnerships are on record, tiered core and minor.
- BAM Clough JVcoreJoint venture partnership for major civil engineering projects. TWD provides engineering design services including cantilever bridge design for Ichthys and Wheatstone LNG jetties in Western Australia.
- Boskalis/Volker Wessels JVcoreJoint venture for offshore wind projects including Veja Mate OWF where TWD designed seafastening cradles and custom lifting beams for 67 monopile foundations.
- GeoSea (DEME Group)coreOngoing collaboration on offshore wind foundation installations including Galloper OWF, Borkum West II pre-piling template, and various piling equipment designs.
- FLO JV (Thames Tideway)corePartnership for Thames Tideway tunnel project providing ad-hoc designs and analyses of cofferdam constructions between 2017 and 2020.
- Barge MastercoreDevelopment partner for motion compensated systems including gangways (T40) for Vos Start vessel and knuckleboom crane pedestals for Kroonborg & Kasteelborg.
- Royal WagenborgcoreJoint development of blade exchange tool for floating removal and installation of wind turbine components, enabling low day-rate barge operations.
- SmuldersminorLightweight lifting spreader design for Titan crane optimization, reducing spreader weight from 50 to 30 tonnes while improving safety features.
Scale indicators4 records
Recent moves6 records
Expansion highlights6 records
Temporary Works Design competitors and assessment
Company assessmentDirect peers
- Royal HaskoningDHV: Royal HaskoningDHV is a Dutch engineering consultancy with a strong maritime, offshore wind, and heavy civils practice, providing multidisciplinary design, method engineering, and mission-equipment consultancy across the same North Sea and global contractor base that TWD serves.
- COWI: COWI is a leading offshore wind engineering consultancy delivering foundation design, transport & installation engineering, and marine consultancy for the same European wind-farm developers and installation contractors that TWD supports, with overlapping geotechnical and structural design capability.
- Ramboll: Ramboll's offshore wind and marine infrastructure groups provide multidisciplinary engineering, foundation design, and installation-method consultancy that compete directly with TWD for offshore wind and heavy civils mission-equipment engagements across Northern Europe and APAC.
- Huisman: Huisman designs and manufactures heavy-lift cranes, spreader beams, and marine mission equipment with in-house concept and detailed engineering teams, competing with TWD at the design-engineering front end of large lifting and offshore installation tools.
- Royal IHC: Royal IHC is a Dutch marine engineering and equipment supplier building offshore vessels, dredging tools, and subsea installation equipment; its custom-engineering capability and offshore contractor customer base overlap materially with TWD's mission-equipment design scope.
Broad incumbents
- WSP: WSP is a global engineering consultancy with an offshore wind and marine infrastructure practice that competes for installation-method and mission-equipment design work, though at much larger scale and broader service breadth than TWD.
- Mott MacDonald: Mott MacDonald is a UK-headquartered engineering consultancy with deep offshore wind, ports, and heavy civils design practices that engage on installation-method consulting for many of the same projects where TWD provides mission equipment.
- Worley: Worley's energy and offshore engineering groups deliver large-scale engineering, procurement, and construction services for offshore wind and LNG, encompassing method engineering and lifting-transport consultancy that overlaps with TWD's heavy lift and offshore wind practices.
- Arup: Arup provides multidisciplinary engineering to offshore wind and heavy civils clients globally, with strong structural and mechanical design practices that intersect with TWD's mission-equipment and temporary works scope.
- Multiconsult: Multiconsult offers offshore wind, marine, and heavy civils engineering consultancy across Norway and Northern Europe, competing for installation-method and foundation design assignments on the same offshore wind projects TWD supports.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks5 records
Key highlights7 records
Customer concentration
Temporary Works Design financial estimates
Financial estimateRevenue estimate
Valuation estimate
Temporary Works Design leadership team
Management profileNumber of profiles
Profiles1 record
Temporary Works Design funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Temporary Works Design 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 Temporary Works Design
What does Temporary Works Design do?
Temporary Works Design (TWD) is a Rotterdam-based engineering firm that designs customized mission equipment and temporary works for offshore installations, civil infrastructure projects, and vessel retrofits. The company delivers multidisciplinary engineering across method engineering, structural & mechanical design, marine engineering, geotechnical engineering, drive & control engineering, EPC management, testing and validation, and software engineering for clients in offshore wind, heavy civils, and heavy lift & transport markets.
Is Temporary Works Design a public or private company?
Temporary Works Design is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Temporary Works Design founded?
Temporary Works Design was founded in 2007. It employs 101 to 250 people.
Where is Temporary Works Design based?
Temporary Works Design is headquartered in Rotterdam, Netherlands, in the Europe region.
How does Temporary Works Design make money?
Three revenue lines are on record. Engineering Design Services are the primary driver. The others are EPC Management and testing and Validation Services.
Who are Temporary Works Design's main competitors?
Direct peers on record are Royal HaskoningDHV, COWI, Ramboll, Huisman and Royal IHC. Broad incumbents are WSP, Mott MacDonald, Worley, Arup and Multiconsult.
Does Temporary Works Design have an API?
No public API is recorded for Temporary Works Design.
What industry is Temporary Works Design in?
Temporary Works Design's product category is Engineering Services. Its primary akta.pro industry code is IMAFAKAI, Temporary Works & Shoring (Sheeting, Bracing, Cofferdams). Its NAICS code is 5413 and its SIC code is 8711.