Keep in mind that many of these tech companies are in California and the law changed a few years back to make it much harder to categorize someone as a contract

Keep in mind that many of these tech companies are in California and the law changed a few years back to make it much harder to categorize someone as a contractor. I’m not 100% clear on the law, but I think if you work more than 20hrs for a company or derive a large portion of your income from a single client that California might consider you to be an employee even if you have a corporate shell like an LLC. I know that back when the law passed I was asked to share copies of invoices to other clients so I could continue to do work as a CA contractor and keep my client protected from any employment claims.