I worked onsite for a large pharmaceutical company in their corporate HQ for 6 years, but never was considered any employee of that company. I couldn't access m

I worked onsite for a large pharmaceutical company in their corporate HQ for 6 years, but never was considered any employee of that company. I couldn't access many services and perks of that company even though I was in their datacenter and on site every day for years. This was the point of hiring me via my consulting company was to move the liability, cost and responsibility to a 3rd party, which also seems to be the case here. This can be a good or bad thing depending on the situation. The original company can show it is cheaper to use a contracting company, but also as seen in the Gulf oil spill, there can be a lot of finger pointing between companies on who is responsible for damage where when it comes time to deal with real problems.