No. Assess the actual ownership and control under the qualifying relationship rules. Family connection alone is insufficient.
Use corporate facts
A family tree is not a substitute for the relevant company structure.
The transferee must have completed one continuous year of qualifying employment abroad with a related entity within the three years preceding the transfer, and a qualifying parent, branch, subsidiary or affiliate relationship must exist between that entity and the United States employer. The classification also requires one continuous year of qualifying employment with the organisation abroad within the three years preceding the filing, in a managerial, executive, or specialized-knowledge capacity, so a founder who ran the company informally still needs that period evidenced. Choose the route the records actually support rather than the one that sounds more impressive, and confirm separately that the qualifying parent, branch, subsidiary or affiliate relationship exists, since no amount of duty evidence rescues a case where it does not. Where the successor comes from a different part of the group, the two threads meet at a single question, whether the employing entity abroad is itself a qualifying related company, and that question should be answered before either thread continues.