About PartnerTubes
Your Global Partner for Vacuum Electronic Devices
PartnerTubes is a specialized distributor of power grid tubes, magnetrons, microwave tubes, vacuum capacitors, and related components — connecting manufacturers worldwide with the specialized vacuum electronic devices their systems depend on.
Who We Are
PartnerTubes is a commercial venture of Grunius BV, a Netherlands-based business development group headquartered in Groningen. Founded in 2015, Grunius operates at the intersection of education, science, and industrial business — building focused specialist businesses that serve technically demanding markets.
PartnerTubes was established to serve the global market for vacuum electronic devices: an inherently specialist sector where buyers need technical expertise, reliable sourcing, and responsive service. We focus exclusively on power grid tubes, microwave tubes, magnetrons, vacuum capacitors, laser parts, and related specialty components.
Our European headquarters in Groningen gives us direct access to the EU market and established logistics routes to customers in the Netherlands, Germany, UK, France, and across Europe — as well as worldwide export capability for customers in the Americas, Asia-Pacific, Middle East, and Africa.
Company Facts
- Founded2015 (Grunius BV)
- HeadquartersGroningen, Netherlands
- Countries Served40+ worldwide
- Product References10,000+
- Manufacturer Partners30+
- Chamber of Commerce62885774
- VAT NumberNL854998494B01
Our Approach
What Sets PartnerTubes Apart
Technical Expertise First
Our team understands vacuum electronics — not just product codes. We can help you identify the right tube for your application, interpret specifications, and troubleshoot compatibility issues.
Global Sourcing Network
Relationships with 30+ manufacturers and distributors worldwide mean we can source current-production, long lead-time, and obsolete types that narrow-focus suppliers cannot provide.
Quality & Traceability
We source from approved, reputable manufacturers. Full traceability, test data, and certificates of conformance are available for safety-critical and regulated applications including medical and defense.
EU Compliance & Export
Operating under EU business regulations, PartnerTubes handles all required export documentation and complies with applicable dual-use and export control regulations for restricted items.
The Grunius Group
Part of a Broader Vision
PartnerTubes is one of several industrial specialist ventures under the Grunius BV umbrella.
PartnerTubes
Vacuum electronic devices, power grid tubes, magnetrons, and specialty components. www.partnertubes.com
PartnerPLC
Industrial electronics, PLC components, and automation parts. www.partnerplc.com
PartnerValves
Industrial valves, flow control, and fluid handling components. www.partnervalves.com
Grunius BV
Parent company. Business development at the intersection of education, science, and industry. www.grunius.com