Sputnik Engineering
Sputnik Engineering was a Swiss manufacturer specializing in string inverters for grid-connected photovoltaic systems under the SolarMax brand. Although the company declared bankruptcy in 2015, the brand was subsequently acquired and revived by the newly formed SolarMax Group based in Ellzee, Germany.
Brand Identity Data
HQ Country
Switzerland
HQ City
Biel/Bienne
Founded
1991
EU Headquartered
Yes
EU Manufactured
Yes
Ownership Type
private
Stock Exchange
Private
Tax Domicile
DE
Ultimate Parent
SolarMax Group GmbH
AI Trains on User Data
false
B Corp Certified
No
Repair / Recycling
Yes ✓
Ethical Certifications
None verified
Verified on October 15, 2026
Corporate Lineage
1991
Foundation
Sputnik Engineering AG was founded in Switzerland to develop power electronics.
2015
Bankruptcy
Sputnik Engineering AG filed for insolvency in Switzerland.
2015
Brand Acquisition
The SolarMax brand and technology were acquired by the newly formed SolarMax Group based in Germany.