What Wind-Zakov does

Wind-Zakov (legally anemos-jacob GmbH, operating under the trademark 'aj') is an independent wind energy consultancy headquartered in Oldershausen, Lower Saxony, Germany. Founded in 1990 by Dr. Daniela Jacob and continuously operating for more than 35 years, the firm provides wind resource assessments, energy production assessments, wind measurement campaigns, due diligence reports, operational behavior analysis, wind farm layout optimization, and site quality determinations under EEG 2017. Its clients are wind farm developers, project initiators, investors, financing parties, and turbine manufacturers in Germany and internationally.

The company operates one of Germany's largest fleets of remote-sensing instruments — 15 AQ500/AQ510 Sodar units from AQ System and 4 Leosphere Windcube Lidars — supplemented by met mast measurements and a network of more than 20 measurement stations nationwide. Technical differentiation rests on the proprietary MDP (Measure-Distribute-Predict) long-term extrapolation method, in-house German production indices used for independent verification of BDB indices, and DAkkS accreditation under DIN EN ISO/IEC 17025 (most recently updated in 2021 and extended to IEC 61400-50 in 2023). The firm has completed more than 4,000 projects across geographies including Spain, Tunisia, Morocco, Bosnia-Herzegovina, Belgium, and Canada.

Revenue is generated entirely through project-based professional services fees on a per-engagement basis; pricing is not publicly disclosed. Distribution is direct expert engagement with enterprise buyers, supported by a bilingual technical website, conference lectures, technical publications, and industry referrals. As of February 25, 2026, the company was acquired by TÜV Rheinland, a global testing, inspection, and certification group with revenue exceeding EUR 2.7 billion, providing immediate access to international channels and cross-sell into TIC services for the wind sector.

Name

Wind-Zakov

Legal name

anemos-jacob GmbH

Website

https://anemos-jacob.com

Company type

Private

Founded year

1990

Operating status

Operating

Headcount range

11–50 employees

Short description

Wind-Zakov (anemos-jacob GmbH / aj) is a German independent wind consultancy providing DAkkS-accredited wind resource, energy production, and due diligence assessments, Sodar/Lidar measurement campaigns, and operational analysis to wind farm developers, investors, and turbine manufacturers, with 35+ years of experience and 4,000+ completed projects.

Ownership category

akta.pro rank

Product category

Wind Energy Consulting Services

NAICS

Other Scientific and Technical Consulting Services (54169)

SIC

Oil & Gas Field Exploration Services (1382)

akta.pro primary industry

Wind Resource Assessment & Energy Yield Analytics (Met Masts, LiDAR, Modeling) (EUAMACAJ)

akta.pro secondary industry

Wind Operations, Maintenance & Asset Management (Scheduled/Unscheduled) (EUAMACAH)

Keywords

• Wind resource assessments
• Energy production assessments
• Wind measurement services
• Sodar Lidar measurements
• Wind farm consulting

Headquarters

HQ city

Oldershausen

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Wind Resource and Energy Production Assessments: Core consulting service determining mean wind resource and long-term mean annual energy production for planned, under construction, or operating wind farms. Forms basis for negotiations between project initiators, developers, investors, financing parties, and turbine manufacturers.
2. Wind Measurements (Sodar and Lidar): Field measurement services using proprietary fleet of 15 Sodar and 4 Lidar instruments for wind resource assessment, power performance verification, and operational behavior analysis.
3. Operational Behavior Analysis: Analysis of wind turbine operational behavior including SCADA data analysis, performance identification, and improvement recommendations.
4. Due Diligence Assessments: Project evaluation services for site suitability, wind resource and energy assessment at every stage of planning process for investors and financing parties.
5. Training and Capacity Building: Training services on wind resource assessment evaluation and measurement techniques for developers, investors, and financing parties.
6. Research Services: Proprietary research often conducted at own cost to improve quality of work, including studies on energy losses, wind measurement, power curves, and wind farm effects.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels5 records

Core offering

Wind-Zakov (anemos-jacob GmbH / aj) is an independent wind consultancy offering highly accurate wind measurements using Sodar and Lidar remote sensing instruments, alongside wind resource and energy production assessments for planned, under-construction, and operating wind farms. The firm delivers bankable reports for developers, investors, financing parties, and turbine manufacturers, complemented by operational behavior analysis, production analysis, wind farm layout optimization, due diligence, and site suitability assessments compliant with FGW TR 6 and IEC 61400 standards.

Product overview

Wind-Zakov (anemos-jacob GmbH / aj) operates as an independent wind consultancy firm offering a comprehensive suite of wind energy assessment and measurement services. The core portfolio includes wind resource and energy production assessments, supported by specialized wind measurement services using both Sodar (AQ500/AQ510 WindFinder) and Lidar (Windcube) instruments. The service offering is organized as an integrated set of modules covering the entire wind project lifecycle: early-stage short assessments, detailed wind measurements, production analysis, operational behavior analysis, wind farm layout optimization, due diligence assessments, and site suitability evaluations. Additional support services include research, capacity building/training, and quality management backed by DAkkS ISO/IEC 17025 accreditation. The company serves project developers, investors, financing parties, and turbine manufacturers with particular emphasis on TR 6 compliance and IEC 61400-50 standards.

Differentiator

Problem solved

Functional benefit

Products and services

• Wind Resource and Energy Production Assessments Comprehensive assessment to determine mean wind resource at sites and long-term mean annual energy production for planned, under construction, or operating wind farms, following FGW TR 6 guidelines. Designed for wind farm developers, investors, and financing parties requiring bankable energy yield reports.
• Short Assessments Early-stage site evaluation providing initial wind resource and strategic planning information based on short-term wind measurements (approximately 3 months), enabling early turbine type and layout decisions for wind farm developers.
• Wind Measurements (Sodar and Lidar) Professional wind measurement services using 15 Sodar instruments (AQ500 and AQ510 WindFinder by AQSystem) and 4 Windcube Lidars by Leosphere, providing TR 6-compliant wind data collection for wind resource assessments, power performance verification, and operational behavior analysis.
• Operational Behaviour Analysis of Wind Turbines Analysis of wind turbine operational behavior including SCADA data analysis, performance identification, and improvement recommendations. Identifies underperforming turbines, quantifies impacts of measures, and improves understanding of wind field conditions in complex terrain or wind farms.
• Production Analysis of Operating Wind Farms

Quantifiable outcome

• Reduced uncertainty in energy predictions through comprehensive data analysis approach
• +3 more outcomes

Named customers7 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

Feature5 records

Partnerships

Five partnerships are on record, tiered core and minor.

• AQSystemcoreTechnology or IntegrationAQSystem manufactures the AQ500 and AQ510 WindFinder Sodar instruments used by aj. aj has 15 of these instruments in operation - one of the largest Sodar fleets in Germany. AQSystem and aj have collaborated on expanding Sodar measurement capabilities, including extending range to 300m height.
• Leosphere (Vaisala)coreTechnology or IntegrationLeosphere (now part of Vaisala) manufactures the Windcube Lidar instruments used by aj. aj operates 4 Windcube Lidars for wind measurement campaigns, which are used alongside or as alternative to Sodar for certain measurement requirements.
• Deutsche Akkreditierungsstelle (DAkkS)coreOthersDAkkS is the German national accreditation body. aj received and maintains DAkkS accreditation according to DIN EN ISO/IEC 17025 for various wind measurement and assessment services, including FGW TR 6, IEC 61400-50 series, and related standards.
• GERICS (Climate Service Center Germany)minorStrategic or Co-development PartnerProf. Dr. Daniela Jacob, founder and former managing director, serves as director of GERICS. This connection maintains scientific expertise and climate service knowledge within aj's network.
• Leuphana University LüneburgminorStrategic or Co-development PartnerProf. Dr. Daniela Jacob serves as professor at Leuphana University Lüneburg, maintaining academic connections and access to research talent.

Scale indicators6 records

Recent moves10 records

Expansion highlights6 records

Emerging players

• Fraunhofer IWES: Fraunhofer IWES is a leading German applied research institute for wind energy, conducting measurement campaigns, wind resource analysis, and grid integration studies. Comparable to aj as a German-anchored technical authority whose published methods and standards shape the assessment market aj serves.

Broad incumbents

• DNV (Wind Energy Advisory): DNV is the global leader in wind energy advisory, measurement, and type certification, formed through the merger of Garrad Hassan and GL Noble Denton. It is directly comparable to aj as a provider of bankable energy yield assessments, measurement campaigns, and due-diligence services to developers, lenders, and OEMs at global scale.
• Wood (SgurrEnergy wind practice): Wood's SgurrEnergy-acquired wind consultancy provides wind resource assessment, energy yield forecasting, and measurement campaign management for project developers, lenders, and investors globally. Comparable to aj as a competing provider of bankable yield studies and bankable reports at international scale.
• Ramboll (formerly EMD International / WindPRO): Ramboll acquired EMD International, the developer of WindPRO, the industry-standard software tool for wind resource and energy yield assessment. Comparable to aj as an enabler/competitor in the wind yield analytics stack used by developers and consultants worldwide.

Others

• MEASNET: MEASNET is an international association of independent wind measurement organizations that standardizes procedures and qualifies measurement service providers. Comparable to aj as a peer ecosystem that competes for the same wind measurement and calibration work governed by IEC 61400-50 and FGW TR 6.

Direct peers

• Natural Power: Natural Power is an independent renewable energy consultancy offering wind resource measurement, energy yield assessments, and owner's engineer services to developers, lenders, and OEMs worldwide. Comparable to aj as a project-based, expert-led wind consultancy with global project coverage.
• Deutsche WindGuard: Deutsche WindGuard is a German wind industry service provider offering wind resource assessments, yield studies, power performance testing, and measurement services. Comparable to aj as one of the closest Germany-based direct competitors in independent wind consulting with similar customers and methodologies.
• UL Solutions (Wind, formerly DEWI/OCC): UL's wind business (acquired from DEWI and Deutsche WindGuard and recently integrated AWS Truepower) provides accredited wind resource assessments, power performance, and measurement services to the same developer/investor customer base as aj. Comparable as a similarly accreditation-driven, technically rigorous German-roots wind testing and consulting competitor.
• Kjeller Vindteknikk: Kjeller Vindteknikk is a Norwegian independent wind consultancy offering wind measurement campaigns, resource assessments, and yield studies. Comparable to aj as a small, expert-led, measurement-heavy European wind consultancy serving developers and investors.
• Vortex (energy yield data and modeling): Vortex provides reanalysis-based long-term reference data, wind resource maps, and energy yield assessment services widely used by developers and lenders. Comparable to aj as a data-and-modeling-driven competitor in the wind yield assessment value chain, especially in the long-term correlation work that aj performs with its proprietary MDP method.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/anemos-jacob-gmbh

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 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 Wind-Zakov