it sounds like you problem is after saving record in database in separate page you need to send user back to original listing (send CompanyID).
it could be done a few ways...
I would prefer save your value in session, so in you save page
save.asp page
Code:
<%
'after saving record
session("CompanyID") = request.form("CompanyID")
%>
on list page list.asp
Code:
<%
if(request.form("CompanyID")="") then
CompanyID=session("CompanyID")
end if
session.abandon ' delete session after read value in variable
<select name="CompanyID">
<option value="1" if CompanyID = "1" then response.write " selected " >company 1</option>
<option value="2" if CompanyID = "2" then response.write " selected ">company 2</option>
<option value="3" if CompanyID = "3" then response.write " selected ">company 3</option>
<option value="4" if CompanyID = "4" then response.write " selected ">company 4</option>
</select>
%>