I searched exhaustively a couple of years ago. Jack Jansma of Wingshooting Adventures and Charlie Schneible of British Shooting Arms Ltd were of assistance but I did not find a company representative to deal with me. The man Jack had used was no longer in the picture. Charlie retailes some Exposito gunslips so perhaps give him a call. Or, you might want to see if anyone still at Orvis in Manchester, VT has any contacts.
Dick Murray was a name which came up but I was not able to locate any current ties there either.
The last address I have is
Artesania F Exposito SA
Calle Baviera (Pg Aquisgran) SN 23200
La Carolina, Jaen, Spain
+34-953-68-14-44 Telephone
+34-953-68-01-46 Fax
(That locale also sourced Martinz Garcia Pablo in Beas De Segura and Leyva Private Label Sociedad limitada in Linares, all of Jaen among others.)
The last presence here in the US I found at the 2005 SHOT Show.
I found some records in October of 2010 indicating a change in management or other personnel.
http://en.datocapital.com/ARTESANIA-F.EXPOSITO-SA.html