Rengineers
Rengineers B.V. is a Dutch wind turbine maintenance, refurbishment, and monitoring specialist founded in 1996, serving turbine owners, agricultural businesses, and wind farm developers across Europe through its BestWatt turbines, Garant subscription contracts, and WindUp monitoring platform.
- Company typePrivate
- Founded1996
- HeadquartersBarneveld, Netherlands
- Headcount51–100
- GTM typeB2B
- OfferingServices
What Rengineers does
Rengineers B.V. is a Dutch private limited company founded in 1996 by Joop Bettink (originally as Bettink Service Team) and headquartered in Barneveld, Netherlands. The company specializes in wind turbine maintenance, refurbishment, and monitoring services, employing 70-85 engineers across its operations. It serves wind turbine owners and operators, agricultural businesses seeking energy independence, and wind farm developers, primarily in the Benelux, UK, Ireland, and increasingly Belgium, Germany, and France.
The company's core offerings span proprietary products and specialized services. BestWatt is Rengineers' proprietary brand of small wind turbines (10-80 kW) manufactured in Leer, Germany, sold as integrated systems with solar panels and battery storage. The WindUp monitoring platform provides real-time turbine data, maintenance tracking, and remote control, monitoring 750+ turbines across Western Europe from a 12 sqm operations center. Supporting services include the Garant Contract (all-inclusive maintenance with 48-hour downtime guarantee), in-house gearbox refurbishment, brand-independent blade service, turnkey repowering projects, spare parts distribution via windturbinespareparts.com, and a headswap product replacing aging nacelles with BestWatt units. The company maintains ISO 9001, ISO 45001, GWO, and ISO 17024 certifications and trains engineers twice yearly against international standards.
Rengineers operates a primarily direct sales model with dedicated field sales teams in the Netherlands (Barneveld HQ) and UK/Ireland (Tim Blackmore, Matt Porter, Gerhard de Pater), supplemented by an e-commerce platform for global spare parts sales. Revenue mechanisms include recurring subscriptions (Garant Contracts and WindUp monitoring), hardware sales (BestWatt turbines, spare parts), and project-based services (gearbox overhauls, blade repair, turnkey refurbishment). The company is privately held with no external institutional investment or public listing, and is undertaking a circular/second-life turbine strategy evidenced by the 2024 BENELUX-first circular turbine partnership and the 2026 Q ENERGY partnership for France's first fully-refurbished wind farm.
Rengineers firmographics
Firmographics- Name
- Rengineers
- Legal name
- Rengineers B.V.
- Website
- https://www.rengineers.eu
- Company type
- Private
- Founded year
- 1996
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Rengineers B.V. is a Dutch wind turbine maintenance, refurbishment, and monitoring specialist founded in 1996, serving turbine owners, agricultural businesses, and wind farm developers across Europe through its BestWatt turbines, Garant subscription contracts, and WindUp monitoring platform.
- Ownership category
- akta.pro rank
Rengineers industry classification
Industry- Product category
- Wind Turbine Maintenance and Refurbishment Services
- NAICS
- Wind Electric Power Generation (221115), Turbine and Turbine Generator Set Units Manufacturing (333611), Electronic and Precision Equipment Repair and Maintenance (811210)
- SIC
- Engines & Turbines (3510)
- akta.pro primary industry
- Wind Operations, Maintenance & Asset Management (Scheduled/Unscheduled) (EUAMACAH)
- akta.pro secondary industries
- Wind Component Service, Repair & Refurbishment (Blades, Gearboxes, Bearings) (EUAMACAI), Major Component Service & Overhauls (Gearboxes, Blades, Generators, Inverters, Turbines) (EUAMAGAF), Wind Repowering, Lifetime Extension & Uprates (EUAMACAL), Wind Turbine Blade Recycling & Repurposing (Composite Processing) (EUAMALAC)
Keywords
Where Rengineers is headquartered
LocationHeadquarters
- HQ city
- Barneveld
- HQ country
- Netherlands
- HQ region
- Europe
Offices2 records
Markets served
Rengineers business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Supply Chain, Infrastructure, Marketing or Sales
Revenue model
- Garant Contract (Full-Service Maintenance): All-inclusive maintenance contract covering insurance, wear, damages, and all costs including crane and components. Fixed annual fee with guaranteed 48-hour response time and compensation for extended downtime.
- Spare Parts and Components: Sales of components for virtually all wind turbine brands from their extensive global inventory including gearboxes, generators, blades, and hydraulic/electrical components.
- BestWatt Systems: Sales of proprietary small wind turbines (15-80 kW) combined with solar panels and battery storage for total sustainable energy solutions.
- Blade Service: Independent blade maintenance, repair, refurbishment, and inspection services. Includes lightning damage repair, erosion repair, vortex generator installation, and yield optimization.
- Gearbox Refurbishment: Complete refurbishment services for linear and planetary gearboxes performed in-house with advanced testing and analysis capabilities.
- Turnkey Projects: Full project realization from purchasing and disassembling existing wind turbines to refurbishment and reassembly. Includes disassembly, logistics, construction, and commissioning services.
- WindUp App Monitoring: Subscription-based monitoring service with real-time data access, maintenance documentation, weather forecasts, and remote start/stop/reset capabilities. Free with Garant Contract.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | Garant Contract - All-in maintenance service |
| Subscription | Annual | WindUp App Subscription |
| Others | Monthly | Service Technician Positions |
| Unit Pricing | Multi-year contract | BestWatt Systems |
Go-to-market motion3 records
Distribution channels4 records
Marketing channels7 records
Rengineers product offering
Product offeringCore offering
Rengineers fundamentally provides wind turbine maintenance, refurbishment, and monitoring services, anchored by the all-inclusive Garant Contract that covers insurance, wear, damages, components, and crane costs with a 48-hour downtime guarantee. The company also manufactures its own BestWatt brand of small wind turbines (10-80 kW) and operates the WindUp proprietary monitoring app for real-time turbine performance tracking across Western Europe.
Product overview
Rengineers offers a portfolio of wind turbine services anchored by BestWatt, their proprietary brand of small wind turbines (10-80 kW), and the WindUp monitoring app. The core offering is the Garant Contract, an all-inclusive maintenance service with 48-hour response guarantees. Supporting services include gearbox refurbishment, blade service, turnkey projects (full disassembly to commissioning), spare parts distribution, and headswap (nacelle replacement). The company operates brand-independently, serving customers across the Netherlands, UK, Ireland, and beyond.
Differentiator
Problem solved
Functional benefit
Products and services
- Garant Contract An all-inclusive wind turbine maintenance contract for turbine owners and operators, covering insurance, wear, damages, technical failures, and crane/hydrostatic testing costs. Includes a 48-hour downtime guarantee with financial compensation for foregone income, plus a free WindUp App subscription for real-time monitoring.
- BestWatt Small Wind Turbines Rengineers' proprietary brand of small wind turbines (10-80 kW) manufactured in Leer, Germany. Provides an integrated sustainable energy solution combining wind power, solar panels, and battery storage for agricultural businesses and commercial customers seeking energy independence.
- WindUp Monitoring App Proprietary real-time monitoring application for wind turbines providing live yield data, performance statistics, maintenance tracking, weather forecasts, and remote turbine control (start/stop/reset). Connects users to Rengineers' 24/7 monitoring center. Available on desktop and mobile.
- Gearbox Refurbishment Service Complete in-house gearbox overhaul service including disassembly, inspection, cleaning, replacement of worn components, testing, and painting. Uses videoscope inspection, vibration analysis, and oil analysis. Covers both linear and planetary gearboxes for wind energy, maritime, and industrial applications.
- Blade Service Comprehensive brand-independent blade maintenance including repairs for lightning damage, erosion, and delamination; periodic inspections; end-of-guarantee inspections; delivery inspections; refurbishment to as-new condition; yield optimization; vortex generator installation; and cleaning. For wind turbine owners and operators across all major turbine brands.
- Turnkey Wind Turbine Projects Full project realization covering purchase and disassembly of existing turbines, refurbishment, logistics, transport, construction, and commissioning. Specializes in giving used turbines a second life. For wind farm developers and project owners.
- Spare Parts and Components Global supply of spare parts and components for virtually all wind turbine brands. Includes gearboxes, generators, hydraulic and electrical components, consumables, and blades. Distributed worldwide through the windturbinespareparts.com platform.
- Headswap (Nacelle Replacement) Complete nacelle replacement service replacing aging turbine heads with brand-new BestWatt nacelles. Includes 48-hour guarantee and insurance options. Provides rapid restoration of productivity for defective or aging turbines with a payback period of approximately 4-5 years.
Quantifiable outcome
- 4-5 year payback period for BestWatt 80 head swap projects
- +4 more outcomes
Companies that use Rengineers
Customer profileNamed customers14 records
Segments4 records
Ideal customer profiles4 records
Rengineers technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Rengineers partnerships and signals
Strategic signalPartnerships
Twelve partnerships are on record, tiered core and minor.
- Q ENERGYcoreQ ENERGY is preparing to build France's first wind farm made entirely of refurbished wind turbines. Rengineers provides nacelle and hub overhauls as specialized partner in the second-life wind equipment initiative.
- RenvominorPartner for turbine identification and sourcing for the French refurbished wind farm project.
- CoverwindminorPartner for dismantling existing turbines at Energiter's Plomodiern site for the French refurbished wind farm project.
- Business in WindcoreCollaboration partner for Belgium's first circular wind turbine project - refurbishment of V90 turbine in Maasmechelen, resulting in first circular turbine in BENELUX.
- Groep BolckmanscoreCustomer for Belgium's first recycled wind turbine project - circular turbine installed in Maasmechelen.
- SI WindminorPartner for foundation preparation in Enercon E70 turnkey project in Northern Ireland.
- Koppejan Wind ServiceminorConstruction partner for turbine assembly in Enercon E70 and E70 projects in Northern Ireland.
- Vlastuin TransportminorSpecialized transport partner for wind turbine components including blades and nacelles. Handled transport of refurbished Vestas V80 blades (40m length) to England.
- East Cork Crane HireminorCrane work partner for Enercon E70 turnkey project in Northern Ireland.
- HBE BouwminorConstruction partner for new Rengineers headquarters building in Barneveld (2021).
- G. Vlastuin Transport EdeminorSmooth logistics partner for V52 turbine teardown and transport to Sweden.
- BKV KraanverhuurminorCrane partner for precise lifting operations during V52 turbine teardown for Sweden project.
Scale indicators11 records
Recent moves10 records
Expansion highlights6 records
Rengineers competitors and assessment
Company assessmentDirect peers
- Deutsche Windtechnik: Germany's leading brand-independent wind O&M specialist offering scheduled/unscheduled maintenance, component service, and repowering across thousands of turbines. Directly comparable to Rengineers on multi-OEM service model, Garant-style full-service contracts, and European footprint.
Broad incumbents
- Vestas: Global wind turbine OEM with one of the largest wind service organizations worldwide. Competes with Rengineers for service contracts on Vestas-installed turbines (V27, V29, V52, V80 visible in Rengineers' references) but as part of a much broader portfolio.
- ENERCON: German wind turbine OEM with proprietary service operations servicing its E70 and other fleets (Seegronan and Magherakeel Rengineers references are ENERCON E70 deployments). Overlaps with Rengineers on independent service and refurbishment of ENERCON turbines.
- Siemens Gamesa: Global wind OEM formed from Siemens Wind and Gamesa. Operates an extensive service business across onshore and offshore wind, directly competing for fleet service contracts that Rengineers also targets.
- Nordex: German wind OEM with significant installed base in Europe and dedicated service organization. Provides overlapping O&M, refurbishment, and repowering services versus Rengineers' independent offering.
- GE Vernova: Standalone GE wind, power, and electrification business. Operates a global wind service organization serving its onshore/offshore fleet with comparable maintenance, repair, and digital monitoring services to Rengineers.
- BayWa r.e. German-headquartered renewable energy developer and operator with wind O&M operations across Europe. Comparable as both a wind asset operator that could be customer or competitor to Rengineers.
- EDF Renewables: French renewable energy major with significant wind operations across Europe. Both a potential customer for Rengineers' refurbishment services in France (Q ENERGY partnership context) and a competitor with in-house wind O&M capabilities.
Emerging players
- Natural Power: Scotland-based independent consultancy and service provider specializing in wind, hydro, and renewable energy. Operates in adjacent UK/Ireland geographies with technical and asset management services for wind farm owners, partially overlapping with Rengineers' turnkey/project services.
- Aerones: Latvia-based robotics and drone wind turbine inspection and maintenance specialist. Directly comparable to Rengineers' newly launched drone blade inspection and infrared inspection services as a niche technology-led specialist.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks7 records
Key highlights7 records
Customer concentration
Rengineers social profiles
Digital presenceRengineers compliance and trust
Trust signalCompliance4 records
Rengineers financial estimates
Financial estimateRevenue estimate
Valuation estimate
Rengineers leadership team
Management profileNumber of profiles
Profiles12 records
Rengineers subsidiaries and ownership
Company hierarchySubsidiaries4 records
Rengineers funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Rengineers 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 Rengineers
What does Rengineers do?
Rengineers fundamentally provides wind turbine maintenance, refurbishment, and monitoring services, anchored by the all-inclusive Garant Contract that covers insurance, wear, damages, components, and crane costs with a 48-hour downtime guarantee. The company also manufactures its own BestWatt brand of small wind turbines (10-80 kW) and operates the WindUp proprietary monitoring app for real-time turbine performance tracking across Western Europe.
Is Rengineers a public or private company?
Rengineers is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Rengineers founded?
Rengineers was founded in 1996. It employs 51 to 100 people.
Where is Rengineers based?
Rengineers is headquartered in Barneveld, Netherlands, in the Europe region.
How does Rengineers make money?
Seven revenue lines are on record. Garant Contract (Full-Service Maintenance) is the primary driver. The others are spare Parts and Components, bestWatt Systems, blade Service, gearbox Refurbishment, turnkey Projects and windUp App Monitoring.
Who are Rengineers's main competitors?
Deutsche Windtechnik is listed as a direct peer. Broad incumbents are Vestas, ENERCON, Siemens Gamesa, Nordex, GE Vernova, BayWa r.e. and EDF Renewables. Emerging players are Natural Power and Aerones.
Does Rengineers have an API?
No public API is recorded for Rengineers.
What industry is Rengineers in?
Rengineers's product category is Wind Turbine Maintenance and Refurbishment Services. Its primary akta.pro industry code is EUAMACAH, Wind Operations, Maintenance & Asset Management (Scheduled/Unscheduled), with a secondary code of EUAMACAI, Wind Component Service, Repair & Refurbishment (Blades, Gearboxes, Bearings). Its NAICS code is 221115 and its SIC code is 3510.