What kind of an account did you transfer your 401K money to in the "Investment Company".
You had 60 days to rollover the 401K to an IRA.
If that wasn't done, or it didn't go into a different qualified plan within the 60 days that was a taxable event for the full amount of the 401K distribution.
Unless the Investment Company had your money in an IRA account, you were not eligible to roll anything into a Roth IRA. Even if the money was in an IRA, putting it into a Roth within 60 days of the original withdrawal would have triggered the tax as only whenever money is put into a Roth it is with after-tax dollars.
If you have money still in a Roth, you are going to have to take it out as your penalties will continue to mount if you don't.
All these companies should have been advising you whether or not you could make these transfers and what the tax implications are.
You should have received a 1099-R on your original 401(k) distribution which indicated it was fully taxable.
I'm afraid you are going to have to see a local CPA to straighten out your tax returns and draft abatement requests for the penalty assessments that are sure to follow if you haven't receive them already.
The only thing the 1 year timetable pertains to is that you can make only 1 401K or IRA rollover that you handle yourself within the 60 days once every year. Trustee to Trustee transfers don't count in the once a year limitation.
So, at this point the question becomes what kind of account was the money in at the Investment Company?