Help Verifying Integrity of 3rd Party Sharepoint Product Provider – Plumsail

I want to purchase a 3rd party product from a contributor on End User SharePoint, however since his company is located in Russia, and we are in the US, our legal team wants to feel a bit more safe if possible before making the purchase.

Can anyone vouch or validate or confirm the integrity of the following company?

Contributor Dmitry Kozlov

is the leader of the SharePoint Forms Designer Team at SharePoint Forms Designer and

Co-founder of PlumSail. Follow him @spform

Articles:

https://www.nothingbutsharepoint.com/sites/eusp/Pages/Reservation-of-Resources-in-SharePoint-2013-and-SharePoint-2013-Online-in-Office-365.aspx

https://www.nothingbutsharepoint.com/sites/eusp/Pages/Reservation-of-Resources-in-SharePoint-2013-and-SharePoint-2013-Online-in-Office-365.aspx

https://www.nothingbutsharepoint.com/sites/devwiki/articles/Pages/SharePoint-Search-in-XsltListViewWebPart.aspx

Thanks!

Sincerely,

Matt