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ONI-Wärmetrafo GmbH Employee Directory

Industrial Machinery ManufacturingNorth Rhine-Westphalia, Germany51-200 Employees

ONI-Wärmetrafo GmbH is a German industrial machinery manufacturer focused on energy-efficient thermal systems. Its portfolio covers the full project lifecycle, from consulting and planning to turnkey construction of energy-optimized plants in areas such as cooling and refrigeration, heat recovery, climate control, and cleanroom technology. The company also provides modular energy centers, rental cooling facilities, compact cooling machines, tempering systems, water treatment, and compressed air supply, along with machine optimization and maintenance services.

Headquartered in Lindlar, North Rhine-Westphalia, the company has operated for more than four decades. Its global customer base includes more than 6,200 clients across over 70 countries, spanning small and medium-sized enterprises to multinationals.

Find ONI-Wärmetrafo GmbH employees' phone numbers or email addresses

ONI-Wärmetrafo GmbH Global Highlights

Location
Employees

Europe
71

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  • Germany
    71

Asia
1

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  • China
    1

ONI-Wärmetrafo GmbH's Leadership

  • Stylized image of a person
    M. F.
    Head Of Hr / Personalleitung
    Phone icon
    Mobile Phone
  • Stylized image of a person
    A. F.
    Assistent Der Geschäftsleitung
    Phone icon
    Mobile Phone
  • Stylized image of a person
    T. K.
    Assistent Der Geschäftsleitung Oni Wärmetrafo Gmbh
    Phone icon
    Mobile Phone
  • Stylized image of a person
    C. S.
    Assistenz Der Geschäftsleitung
    Phone icon
    Mobile Phone
  • Stylized image of a person
    M. S.
    Stellvertretender Einkaufsleiter
    Phone icon
    Mobile Phone
  • Stylized image of a person
    P. W.
    Technischer Einkäufer
    Phone icon
    Mobile Phone
  • Stylized image of a person
    T. K.
    Leiter It
    Phone icon
    Mobile Phone
  • Stylized image of a person
    G. L. G.
    Projektplaner
    Phone icon
    Mobile Phone

ONI-Wärmetrafo GmbH Employee Metrics

100%
50%
0%
2026
2025
  • Business
  • Engineering
  • Human Resources
  • Marketing
  • Program & Project Management
  • Other
  • Administrative

Contact profiles from ONI-Wärmetrafo GmbH

Name
Title
Contact Info
Location
Last Update
  • Stylized image of a person
    M. F.
    Head Of Hr / Personalleitung
    Phone icon
    Mobile Phone
    GermanyNorth Rhine-Westphalia
    Jun 02, 2026
  • Stylized image of a person
    A. F.
    Assistent Der Geschäftsleitung
    Phone icon
    Mobile Phone
    GermanyNorth Rhine-Westphalia
    Jun 29, 2026
  • Stylized image of a person
    T. K.
    Assistent Der Geschäftsleitung Oni Wärmetrafo Gmbh
    Phone icon
    Mobile Phone
    Nov 18, 2025
  • Stylized image of a person
    C. S.
    Assistenz Der Geschäftsleitung
    Phone icon
    Mobile Phone
    Nov 19, 2025
  • Stylized image of a person
    M. S.
    Stellvertretender Einkaufsleiter
    Phone icon
    Mobile Phone
    Apr 13, 2026
  • Stylized image of a person
    P. W.
    Technischer Einkäufer
    Phone icon
    Mobile Phone
    Jan 29, 2026
  • Stylized image of a person
    T. K.
    Leiter It
    Phone icon
    Mobile Phone
    GermanyNorth Rhine-Westphalia
    Oct 20, 2025
  • Stylized image of a person
    G. L. G.
    Projektplaner
    Phone icon
    Mobile Phone
    GermanyNorth Rhine-Westphalia
    Oct 19, 2025
  • Stylized image of a person
    R. S.
    Leiter Finanz- Und Rechnungswesen
    Phone icon
    Mobile Phone
    Germany
    Jun 01, 2026
  • Stylized image of a person
    N. W.
    Personalwesen
    Phone icon
    Mobile Phone
    GermanyNorth Rhine-Westphalia
    Jun 25, 2026

Frequently Asked Questions

What is ONI-Wärmetrafo GmbH known for?

Minus sign iconPlus sign iconONI-Wärmetrafo GmbH was founded in 1983 operates in the Industrial Machinery Manufacturing industry. Explore ONI-Wärmetrafo GmbH's company overview page for more information.

What is ONI-Wärmetrafo GmbH's most common email format?

Minus sign iconPlus sign iconONI-Wärmetrafo GmbH employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more ONI-Wärmetrafo GmbH email formats with LeadIQ.

How many employees does ONI-Wärmetrafo GmbH have currently?

Minus sign iconPlus sign iconONI-Wärmetrafo GmbH has approximately 108 employees as of July 2026. These team members are located across 2 continents, including EuropeAsia.

Who are ONI-Wärmetrafo GmbH's key employees and leadership?

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As of July 2026, ONI-Wärmetrafo GmbH's key employees include:

  • Head Of Hr / Personalleitung: M. F.
  • Assistent Der Geschäftsleitung: A. F.
  • Assistent Der Geschäftsleitung Oni Wärmetrafo Gmbh: T. K.
  • Assistenz Der Geschäftsleitung: C. S.
  • Stellvertretender Einkaufsleiter: M. S.

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