programmatically it is possible to search every relevant field of any
table, but i have no knowledge of any easy way to do that.

Is the built-in Windows search for files containing a certain text
string not sufficient? You can limit to a particular file type, and
search subfolders. So, if you needed to find all the MDBs with that
company name in them on a particular server, you'd start at the
highest possible share level (if it's set up right, there ought to
be one top-level data share).

If that's not sufficient, you'd have to somehow get a list of all
the MDBs and then you could easily program searching all fields in
all tables in those MDBs.

Just sketching out the structure of this:

 Loop 1 Start
     fetches an MDB name/path from the list and opens it
   Loop 2 Start
       fetches the first table in the MDB from the TableDefs
         collection
       If NOT linked table then
          Loop 3 Start
             loop the fields collection of each TableDef
                and construct a SQL string for each field that
                tests WHERE field Like "*searchtext*" and open a
                recordset with that SQL
             If match found Then
                record this MDB's name and table/field name AND
                exit Loop 3 OR
                record MDB name and table/field name AND
                go to next field
          Loop 3 End
       Else Next TableDef
   Loop 2 End
 Loop 1 End

There are many questions that would need to be answered, but that's
the basic structure of what you'd need to do:

1. get the list of MDBs (either in Access or from outside Access)

2. open each MDB in turn

3. walk the TableDefs collection

4. walk the Fields collectin of each TableDef

5. if there's a match record as much information as you need:
  a. MDB name only
  b. MDB name and table
  c. MDB name, table and field
  d. MDB name, table, field and count of matches
  e. MDB name, table, field, count of matches and PKs of matching
      records

That pretty much covers it so far as I can see.