What NTTB does

nttb GmbH is a privately held German engineering services company founded in 2014 and headquartered in Husum, Schleswig-Holstein. It provides specialist technical and commercial operations management, grid connection planning and electrotechnical services exclusively for wind and solar park operators in Northern Germany. As of 2024-2025 it manages more than 350 renewable-energy installations across multiple OEMs (Vestas, Siemens Gamesa, Enercon, Senvion) and is actively planning roughly 170 new grid-connection projects across Schleswig-Holstein, North Rhine-Westphalia and Mecklenburg-Vorpommern.

The company's product portfolio spans two core pillars — Netzanschlussplanung (full-scope network connection planning for medium, high and extra-high voltage) and Technische Betriebsführung (24/7 remote monitoring, fault resolution, medium-voltage switching, redispatch management and availability calculations) — supplemented by Kaufmännische Betriebsführung, Direktvermarktung advisory, substation planning, DGUV-V3 safety inspections, Netzschutzprüfung and railway-crossing approvals. Underlying technology is conventional SCADA-based remote monitoring combined with manual engineering workflows; six staff hold medium-voltage switching certification (1,000-60,000V), a credential that underwrites the on-site service capability.

nttb monetises through customised, multi-year professional-services contracts with flexible scope and joint definition of service intensity, sold direct to enterprise wind and PV operators in Schleswig-Holstein, NRW and Mecklenburg-Vorpommern. The firm is bootstrapped and founder-owned: co-founders Kai Nohme and Ralf Thomsen remain managing directors alongside three executives (Jacky Forster, Melanie Forster, Malte Hansen) who joined the Geschäftsführung in early 2026. The company has no external institutional investors, no subsidiaries, no disclosed funding rounds, and no app or API product surface — its growth has been entirely organic since 2014.

Name

NTTB

Legal name

nttb GmbH

Website

https://nttb-gmbh.de

Company type

Private

Founded year

2014

Operating status

Operating

Headcount range

1–10 employees

Short description

nttb GmbH is a privately held German engineering services firm founded in 2014 in Husum that provides grid connection planning, technical and commercial operations management, and electrotechnical services to wind and solar park operators in Northern Germany, managing 350+ installations.

Ownership category

akta.pro rank

Product category

Renewable Energy Services

NAICS

Electric Power Transmission, Control, and Distribution (22112), Electric Power Generation, Transmission and Distribution (2211), Electronic and Precision Equipment Repair and Maintenance (811210)

SIC

Switchgear & Switchboard Apparatus (3613), Electric Services (4911)

akta.pro primary industry

High-Voltage Electrical Systems (Switchgear, Transformers, Protection & Control) (EUAEAFAA)

akta.pro secondary industries

Testing, Commissioning & Energization Services (T&C) (IMAFAHAK), Circuit Breakers, Disconnectors, Earthing Switches & Switchgear Components (EUADACAH)

Keywords

• Wind park operations management
• Network connection planning
• Renewable energy services
• Electrotechnical services
• Grid protection testing

Headquarters

HQ city

Husum

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Technical Operations Management: Comprehensive technical management services for wind and solar parks including remote monitoring, troubleshooting, plant inspections, medium voltage switching, reporting, data management, direct marketer connection, redispatch management, network shutdowns, recurring tests, and availability calculations
2. Commercial Operations Management: Commercial management services including direct marketing organization, electricity tax registrations, lessor settlements, invoice processing, reporting with shareholder meeting preparation, and insurance/warting contract management
3. Network Connection Planning: Complete network connection planning services for medium, high, and extra-high voltage, including grid connection applications, reactive power/voltage limit calculations, cable cross-section calculations, cable construction and station tenders, regulatory approvals, technical coordination with grid operators and manufacturers
4. Electrical Engineering Services: Network protection inspections, protection tests at wind turbines and stations, DGUV-V3 inspections, defect repair, grounding measurements, medium voltage switching, recurring tests and inspections, station building and transformer station maintenance
5. Direct Marketing Services: Advisory and brokerage services for direct marketing contracts including classical, special direct marketing, PPA and fixed price offers
6. Availability Calculations: Monitoring and verification of contractually agreed availabilities as used in full maintenance contracts, modeling bonus/malus payments

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

nttb GmbH provides specialized technical and commercial services for renewable energy operators in Northern Germany, with a focus on wind and solar parks. The company's core offerings are network connection planning for medium, high, and extra-high voltage grids and technical operations management for more than 350 wind turbine systems, complemented by commercial operations management, direct marketing advisory, Redispatch 2.0 coordination, availability calculations, and certified electrotechnical services including DGUV-V3 inspections, grid protection testing, and medium voltage switching.

Product overview

NTTB is a specialized service provider for renewable energy projects in Northern Germany, offering a comprehensive portfolio of services focused on wind and solar parks. The core offerings center on two main pillars: (1) Netzanschlussplanung (Network Connection Planning) for medium, high, and extra-high voltage grid connections, and (2) Technische Betriebsführung (Technical Operations Management) with over 350 systems under management. These are supplemented by Kaufmännische Betriebsführung (Commercial Operations), Direktvermarktung (Direct Marketing), and Redispatch 2.0 services. The company also provides specialized electrotechnical services including Netzschutzprüfung (Grid Protection Testing), DGUV-V3 Prüfung (Safety Inspections), and Mittelspannungsschaltungen (Medium Voltage Switching). Currently planning approximately 74 new projects including 46 wind parks, 13 wind park extensions, 5 substations, and 8 photovoltaic parks.

Differentiator

Problem solved

Functional benefit

Products and services

• Netzanschlussplanung (Network Connection Planning) Comprehensive network connection planning for wind and solar parks covering medium, high, and extra-high voltage levels. Includes creating connection applications, calculating reactive power and voltage limits, designing cable cross-sections, coordinating with grid operators and manufacturers, and managing the certification process from planning through commissioning. Targeted at wind park and solar park operators and project developers in Northern Germany.
• Technische Betriebsführung (Technical Operations Management) Full technical management of PV and wind parks including remote monitoring, fault resolution, regular plant inspections, medium voltage switching, reporting, data management, direct marketer connection, redispatch management, and availability calculations. Serves wind park and solar park operators managing multi-turbine portfolios across Northern Germany.
• Kaufmännische Betriebsführung (Commercial Operations Management) Commercial management services for renewable energy plant operators including direct marketing organization and consulting, electricity tax registrations, lessor settlements, invoice processing, reporting with shareholder meeting preparation, and contract management for insurance and maintenance contracts. Targets wind park and solar park operators needing back-office commercial support.
• Direktvermarktung (Direct Marketing) Advisory and brokerage services for direct marketing contracts of renewable energy plants, including comparison of classical and special direct marketing offers, PPA (Power Purchase Agreement) contracts, and fixed-price offers. Assists wind and solar park operators in obtaining, evaluating, and comparing marketing options.
• Redispatch 2.0

Quantifiable outcome

• Currently managing 350+ wind turbine installations from various manufacturers
• +1 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• windenergie-online.decoreTechnology or IntegrationService portal partner providing direct customer access to wind energy online services and monitoring capabilities. NTTB recommends this portal as a service access point for customers.

Scale indicators4 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• ABO Wind AG: German wind and solar project developer with an in-house operations and service unit offering Betriebsführung and grid connection support similar to nttb's portfolio.
• VSB Service GmbH: Operations and service arm of German wind project developer VSB, offering technical Betriebsführung, grid connection, and repowering services to third-party wind park operators.
• UKA Umweltgerechte Kraftanlagen GmbH & Co. KGaA: German wind project developer with internal operations management and grid connection services for onshore wind, providing a comparable end-to-end service profile.
• BayWa r.e. Operation Services GmbH: Operations management business of BayWa r.e., delivering technical and commercial Betriebsführung plus grid connection services to wind and solar operators across Germany.
• juwi Operations GmbH: Subsidiary of juwi/Statkraft focused on operations management for wind and PV parks in Germany, providing comparable technical, commercial, and grid services to renewable operators.
• wpd windmanager GmbH: German specialist operations management provider for wind and solar parks, offering commercial and technical Betriebsführung directly comparable to nttb's core service set, with a larger national footprint.
• ENOVA GmbH: Independent German wind and solar park operations manager covering technical and commercial Betriebsführung, grid connection planning, and direct marketing — overlapping nttb's full service stack.

Emerging players

• WindGuard GmbH: German specialist in wind measurement, certification, and technical consulting; partial overlap with nttb's certification, Netzschutzprüfung, and Schallvermessung offerings.

Broad incumbents

• TÜV Rheinland Energy GmbH: Large global testing and certification body offering DGUV, grid protection, and wind energy certification services — adjacent overlap with nttb's DGUV-V3 and Netzschutzprüfung offerings.
• E.ON Energy Solutions GmbH: Major German utility with growing distributed-energy and grid-services businesses that increasingly overlap with nttb's operations management and grid connection scope at much larger scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/nttb-gmbh

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 NTTB