I do not believe they are related to Electrolux, but I'm not sure.  My experience with the company was not good.  I was not able to get anyone on the phone or to answer my emails when I needed to get a conversion kit.  I did have initial conversations with TagnDrop (the seller) when I called regarding my unit being damaged.  Even though it was easy to prove the cooktop was not damaged in transit, they would not consider replacing because I had the unit for over 70 days (my renovation was delayed, and I sadly never opened the box until installation).  I understood this and fortunately sold the unit to a propane user after having the dents repaired.  After researching this company, it's addresses, and it's delivery methods, however, I would highly recommend doing the same and also THOROUGHLY reading the warranty and install info.  I bought a new unit through Dacor and am thrilled.