Insights

Sustainability Focus ONI-Wärmetrafo GmbH specializes in energy-saving systems and has a broad portfolio including heat recovery, modular energy centers, and energy-efficient climate and process technologies, signaling opportunities to upsell high-efficiency retrofits, optimization upgrades, and integrated energy-management solutions.

Global Reach With over 6,400 customers in more than 70 countries, ONI demonstrates a proven track record and willingness to work on international projects, suggesting sales potential in multinational deployments, cross-border service contracts, and scalable solutions for large manufacturing sites.

End-to-End Services Their offering spans consulting, planning, turnkey projects, financing, maintenance, and service, presenting openings for bundled offerings, extended warranties, performance contracts, and financial options to reduce upfront costs for potential buyers.

Tech Stack & Compliance adoption of digital and security-focused tools (Customer data platforms, SSL, security, SEO, form tools) indicates receptiveness to advanced monitoring, remote diagnostics, and data-driven optimization solutions that can be bundled with EtaControl and water treatment or compressed air systems.

Medium-sized Focus Employee range and revenue positioning place ONI in the mid-market segment, offering opportunities for tailored mid-sized plant upgrades, modular energy centers, and scalable cooling and climate solutions suited to regional manufacturers seeking cost savings and reliability.

Similar companies to ONI-Wärmetrafo GmbH

ONI-Wärmetrafo GmbH Tech Stack

ONI-Wärmetrafo GmbH uses 8 technology products and services including iCIMS, Usercentrics, Open Graph, and more. Explore ONI-Wärmetrafo GmbH's tech stack below.

ONI-Wärmetrafo GmbH's Email Address Formats

ONI-Wärmetrafo GmbH uses at least 1 email format:
ONI-Wärmetrafo GmbH Email FormatsExamplePercentage
F.Last@oni.deJ.Doe@oni.de
100%

Frequently Asked Questions

What is ONI-Wärmetrafo GmbH's official website and social media links?

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ONI-Wärmetrafo GmbH's official website is oni.de and has social profiles on LinkedIn.

How much revenue does ONI-Wärmetrafo GmbH generate?

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As of September 2026, ONI-Wärmetrafo GmbH's annual revenue is estimated to be $10M - $25M.

What is ONI-Wärmetrafo GmbH's SIC code and NAICS code?

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ONI-Wärmetrafo GmbH's SIC code is 7299 - Miscellaneous Personal Services, Not Elsewhere Classified and NAICS code is 3332 - Industrial Machinery Manufacturing.

How many employees does ONI-Wärmetrafo GmbH have currently?

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As of September 2026, ONI-Wärmetrafo GmbH has approximately 110 employees across 2 continents, including Europe and Asia. Key team members include Head Of Hr / Personalleitung: M. F., Pressesprecher, Leiter Kommunikation Und Public Relations: R. D. and Projektleiter: K. H. Explore ONI-Wärmetrafo GmbH's employee directory with LeadIQ.

What industry does ONI-Wärmetrafo GmbH belong to?

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ONI-Wärmetrafo GmbH operates in the Industrial Machinery Manufacturing industry.

What technology does ONI-Wärmetrafo GmbH use?

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ONI-Wärmetrafo GmbH's tech stack includes iCIMS, Usercentrics, Open Graph, WordPress, Shopify, KnowBe4, Really Simple SSL & Security and Piwik PRO Core.

What is ONI-Wärmetrafo GmbH's email format?

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ONI-Wärmetrafo GmbH's email format typically follows the pattern of F.Last@oni.de. Find more ONI-Wärmetrafo GmbH email formats with LeadIQ.

When was ONI-Wärmetrafo GmbH founded?

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ONI-Wärmetrafo GmbH was founded in 1983.
ONI-Wärmetrafo GmbH logo

ONI-Wärmetrafo GmbH

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.

Section iconCompany Overview

Website
oni.de
SIC Code
7299 - Miscellaneous Personal Services, Not Elsewhere Classified
NAICS Code
3332 - Industrial Machinery Manufacturing
Founded
1983
Employees
51-200

Section iconFunding & Financials

  • $10M - $25M

    ONI-Wärmetrafo GmbH's revenue is estimated to be in the range of $10M - $25M

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