ZephyScience
ZephyScience is a French computational wind engineering company that delivers CFD-based wind resource assessment, farm design, and control software to wind farm owners, developers, and investors through its ZephyFarm web application, ZephyCloud backend, open-source ZephyCFD-Core scripts, and ZephyPole consulting services.
- Company typePrivate
- Founded2012
- HeadquartersLasalle, France
- Headcount1–10
- GTM typeB2B
- OfferingSoftware
What ZephyScience does
ZephyScience is a French computational wind engineering company founded in 2012 in Lasalle, France, that develops software and services for advanced Wind Resource Assessment (WRA), farm design, and control. The company's technology stack combines Computational Fluid Dynamics (CFD), built on open-source foundations including OpenFOAM, Pandas, and XGBoost, with cloud computing, framed by the company as "Computational Wind Engineering using CFD combined with Artificial Intelligence." Its primary customers are wind farm owners, developers, and investors that require accurate yield predictions under competitive tender processes, alongside wind-energy professionals executing pre-construction wind engineering work.
The product portfolio is structured as a platform-plus-modules architecture. ZephyFarm is the public web-browser client application that runs fully automatic CFD-based wind resource assessments and is powered by the ZephyCloud backend, which orchestrates burst cloud computing across multiple cloud-computing suppliers on a pay-as-you-go cores-per-hour basis settled in a virtual currency called ZephyCoins. XFarm is a private, self-hosted white-label web application (PHP and Python APIs) that lets enterprises own and operate their own platform with cloud computation charged at cost. ZephyCFD-Core is an open-source set of Python scripts exposing the underlying modeling chain, and ZephyTOOLS is a legacy desktop product (ZephyWDP, ZephyCFD) that is no longer maintained or cloud-connected. ZephyPole is a consulting line that delivers WRA and Energy Yield Assessment (EYA) reports, training, and user meetings.
The business model combines a freemium product-led growth funnel (ZephyFarm self-registration, Bronze/Silver/Gold rank tiers) with sales-assisted enterprise motion through Gold Account subscriptions and ZephyPole services. Published pricing includes Gold Account Entry at €2,000 for 6 months (20 ZephyCoins), Pro at €4,000 for 1 year (100 ZephyCoins, remote training), Expert at €15,000 for 2 years (250 ZephyCoins, in-house training), and an annual renewal at €2,500 for up to 3 users, with Gold subscribers receiving a 5x discount on cloud computation versus free users. The company employs 1–10 people, has received EU Horizon 2020 grant funding under agreement No 783913, and after building a market position in China and India is now focused on European activities. A website link to Aziugo Group suggests an affiliated corporate relationship, though no formal parent-subsidiary structure is disclosed.
ZephyScience firmographics
Firmographics- Name
- ZephyScience
- Legal name
- ZephyScience
- Website
- https://zephy-science.com
- Company type
- Private
- Founded year
- 2012
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- ZephyScience is a French computational wind engineering company that delivers CFD-based wind resource assessment, farm design, and control software to wind farm owners, developers, and investors through its ZephyFarm web application, ZephyCloud backend, open-source ZephyCFD-Core scripts, and ZephyPole consulting services.
- Ownership category
- akta.pro rank
ZephyScience industry classification
Industry- Product category
- Computational Wind Engineering Software
- NAICS
- Geophysical Surveying and Mapping Services (54136), Computer Systems Design and Related Services (54151)
- SIC
- Services-Computer Programming Services (7371)
- akta.pro primary industry
- Wind Resource Assessment & Energy Yield Analytics (Met Masts, LiDAR, Modeling) (EUAMACAJ)
- akta.pro secondary industry
- Wind Farm Development & Permitting (Greenfield/Brownfield) (EUACAFAE)
Keywords
Where ZephyScience is headquartered
LocationHeadquarters
- HQ city
- Lasalle
- HQ country
- France
- HQ region
- Europe
Offices1 record
Markets served
ZephyScience business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Infrastructure, Personnel, Marketing or Sales, Operations
Revenue model
- Cloud Computing (ZephyCoins): Pay-as-you-go cloud computing service charged on a cores-per-hour basis. Costs increase with calculation time and number of processors used. Resources are charged using ZephyCoins virtual currency with pricing varying by user rank (Bronze, Silver, Gold). Gold Account subscribers receive cloud computations at 5x lower cost than free users.
- Gold Account Subscriptions: Annual and multi-year subscription packages providing access to ZephyScience software platforms with varying ZephyCoin allocations and support levels. Entry (€2,000 for 6 months, 20 ZephyCoins), Pro (€4,000 for 1 year, 100 ZephyCoins, 3x3h remote training), Expert (€15,000 for 2 years, 250 ZephyCoins, 3-day in-house training).
- Gold Account Renewal: Annual renewal of Gold Account at €2,500 per year (up to 3 users). Includes complete software with unlimited desktop calculations, cloud computations at 5x discount, online tutorials, and technical support. Additional users charged at €500 each.
- Consulting Services (ZephyPole): CFD software outputs with automated reports for Wind Resource Assessment (WRA) or Energy Yield Assessment (EYA) studies. Services include raw climatology data processing, CFD wind modelling, and complete WRA/EYA reports following MEASNET/IEC 61400 guidelines. Delivered within three days of receiving adequate input files.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Others | Free User - No cost access with limited features |
| Subscription | Annual | Gold Account Renewal - €2,500/year for up to 3 users |
| Subscription | Multi-year contract | Entry - €2,000 for 6-month Gold Account with 20 ZephyCoins |
| Subscription | Annual | Pro - €4,000 for 1-year Gold Account with 100 ZephyCoins and remote training |
| Subscription | Multi-year contract | Expert - €15,000 for 2-year Gold Account with 250 ZephyCoins and in-house training |
Go-to-market motion2 records
Distribution channels4 records
Marketing channels4 records
ZephyScience product offering
Product offeringCore offering
ZephyScience develops computational wind engineering software and services that enable advanced Wind Resource Assessment (WRA), farm design, and control optimization. Its portfolio combines open-source CFD modeling (ZephyCFD-Core) with burst cloud-computing infrastructure (ZephyCloud), delivered through public (ZephyFarm) and private/self-hosted (XFarm) web applications, supplemented by consulting services (ZephyPole) for WRA and Energy Yield Assessment studies.
Product overview
ZephyScience develops Computational Wind Engineering software dedicated to the wind industry, offering a platform-plus-modules architecture. The product portfolio centers on ZephyFarm (public web application) and XFarm (private web application) as front-end interfaces, both executing ZephyCFD-Core modeling chains for CFD-based wind resource assessment. The company also offers ZephyCloud (cloud computing infrastructure service) and ZephyPole (consulting services). ZephyTOOLS desktop software is maintained as a legacy product but is no longer connected to cloud services. The company combines open-source and cloud-computing technology to advance wind farm modeling through wind resource assessment, farm design, and control optimization.
Differentiator
Problem solved
Functional benefit
Brands
- ZephyFarm: Public front-end web-browser client application powered by ZephyCloud, containing fully-automatic CFD-based wind resource assessment solutions.
- XFarm
- ZephyCFD-Core
- ZephyTOOLS
- ZephyCloud
- ZephyPole
Products and services
- ZephyFarm Public front-end web-browser client application powered by ZephyCloud providing fully-automatic CFD-based wind resource assessment solutions for pre-construction wind engineering requirements. Enables users to run CFD models, evaluate wind resources on wind farm projects, and optimize ground-based Lidar measurement campaigns via cloud computing.
- XFarm Private web application allowing customers to fully own and host their own platform with API-based architecture (PHP and Python APIs). Enables cloud computations charged at cost with ZephyScience staying out of the data loop, for organizations requiring full data sovereignty.
- ZephyCFD-Core Open-source set of Python scripts that execute CFD-based wind resource assessments on desktop computers via command lines. Built on OpenFOAM, Pandas, and XGBoost, following Free Software Movement principles, with full source code planned for GitHub release.
- ZephyTOOLS Legacy desktop software for advanced Wind Resource Assessment and Farm Design on local machines. Includes ZephyWDP for wind data processing and ZephyCFD for optimized flow modeling. Currently neither maintained nor connected to any cloud-computing service.
- ZephyCloud Back-end cloud computing service that enables burst cloud computing by connecting CFD modeling chains with cloud-computing suppliers. Operates on a pay-as-you-go model charged on a cores-per-hour basis via ZephyCoins virtual currency, with pricing tiers (Bronze, Silver, Gold) and 5x lower costs for Gold Account subscribers.
- ZephyPole Consulting Services Professional consulting services combining software development and wind engineering expertise to deliver client-specific CFD solutions. Includes raw climatology data processing, CFD wind modelling, complete WRA/EYA reports following MEASNET/IEC 61400 guidelines, user trainings, and consultancies delivered within three days of receiving adequate input files.
- Gold Account Subscription Packages Tiered subscription packages providing access to ZephyScience software platforms, ZephyCoin allocations, and support levels. Entry (EUR 2,000 for 6 months, 20 ZephyCoins), Pro (EUR 4,000 for 1 year, 100 ZephyCoins, 3x3h remote training), and Expert (EUR 15,000 for 2 years, 250 ZephyCoins, 3-day in-house training), with annual renewal at EUR 2,500 for up to 3 users.
Quantifiable outcome
- 5x lower cloud computation costs for Gold Account subscribers compared to free users
- +1 more outcomes
Companies that use ZephyScience
Customer profileSegments2 records
Ideal customer profiles2 records
ZephyScience technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
ZephyScience partnerships and signals
Strategic signalScale indicators3 records
Recent moves6 records
Expansion highlights5 records
ZephyScience competitors and assessment
Company assessmentDirect peers
- Vortex: Spanish company providing CFD-based wind resource assessment, wind farm design, and energy yield forecasting — directly competing with ZephyScience's ZephyFarm/ZephyCFD offerings for the same pre-construction wind engineering buyer.
- WindSim: Norwegian provider of CFD software for wind resource assessment and wind farm design, with comparable product positioning around accurate CFD modelling for wind project developers — overlapping with ZephyScience's ZephyCFD-Core and ZephyFarm stack.
- Meteodyn: France-based specialist in wind resource assessment, solar resource assessment, and CFD wind modelling; closest geographic and product peer to ZephyScience, serving identical utility/developer/financial customers in European wind markets.
- Emeraude: European wind resource assessment consultancy producing bankable yield studies under MEASNET/IEC frameworks — directly competitive with ZephyScience's ZephyPole consulting services for the same financial-grade WRA/EYA deliverables.
- Natural Power: Independent renewable energy consultancy offering wind resource assessment, site assessment, and engineering services — comparable buyer overlap (developers, investors, lenders) and service scope to ZephyScience's offering.
Broad incumbents
- DNV: Global energy consultancy and certification body (formerly GL Garrad Hansen) offering end-to-end wind energy services including resource assessment, due diligence, and design — incumbent competitor with vastly larger scale and brand recognition than ZephyScience.
- Vestas: World's largest wind turbine OEM with proprietary wind resource assessment capabilities, site suitability tools, and pre-construction services bundled with turbine sales — represents the embedded, bundled alternative to standalone tools like ZephyFarm.
- UL Solutions: Acquired OpenWind and DEWI to build a wind energy software and testing portfolio; competes directly with ZephyScience in WRA software while also serving as a broader certification, testing, and advisory incumbent.
- Siemens Gamesa (Siemens Energy): Major wind OEM with internal WRA, yield forecasting, and site engineering capabilities used for its own turbine sales; competes with ZephyScience at the project developer interface where OEMs increasingly offer end-to-end services.
- Ramboll: Global engineering consultancy with a substantial wind energy practice spanning resource assessment, design, and due diligence; broader incumbent that competes with ZephyScience on enterprise wind consulting engagements.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat4 records
Key risks5 records
Key highlights6 records
Customer concentration
ZephyScience financial estimates
Financial estimateRevenue estimate
Valuation estimate
ZephyScience leadership team
Management profileNumber of profiles
ZephyScience funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
ZephyScience 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 ZephyScience
What does ZephyScience do?
ZephyScience develops computational wind engineering software and services that enable advanced Wind Resource Assessment (WRA), farm design, and control optimization. Its portfolio combines open-source CFD modeling (ZephyCFD-Core) with burst cloud-computing infrastructure (ZephyCloud), delivered through public (ZephyFarm) and private/self-hosted (XFarm) web applications, supplemented by consulting services (ZephyPole) for WRA and Energy Yield Assessment studies.
Is ZephyScience a public or private company?
ZephyScience is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was ZephyScience founded?
ZephyScience was founded in 2012. It employs 1 to 10 people.
Where is ZephyScience based?
ZephyScience is headquartered in Lasalle, France, in the Europe region.
How does ZephyScience make money?
Four revenue lines are on record. Cloud Computing (ZephyCoins) is the primary driver. The others are gold Account Subscriptions, gold Account Renewal and consulting Services (ZephyPole).
Who are ZephyScience's main competitors?
Direct peers on record are Vortex, WindSim, Meteodyn, Emeraude and Natural Power. Broad incumbents are DNV, Vestas, UL Solutions, Siemens Gamesa (Siemens Energy) and Ramboll.
Does ZephyScience have an API?
No public API is recorded for ZephyScience.
What industry is ZephyScience in?
ZephyScience's product category is Computational Wind Engineering Software. Its primary akta.pro industry code is EUAMACAJ, Wind Resource Assessment & Energy Yield Analytics (Met Masts, LiDAR, Modeling), with a secondary code of EUACAFAE, Wind Farm Development & Permitting (Greenfield/Brownfield). Its NAICS code is 54136 and its SIC code is 7371.