Anyone recovered funds lost in Cryptocurrency Scam.

Is this another scammer website?

https://scam-doctor.com/

There are some companies who claim that scammed money can be recovered by them.

Are these companies also scammers?
Anyone having experience?

https://claim-justice.com/

https://payback-ltd.com/

https://money-back.com/

I got scammed.
stocktopia.org
I believed in investment and put huge money.
Saturday the site was down and still down.
Looks like scammers ran away with money.
I am going to report to FBI.
Looks like 0% chance to recover money.
Any one else have experience with stocktopia.org