BLS AG The largest private railway company in Switzerland
In 1997 the "old" BLS, consisting of the BN the GBS and the SEZ merged to form the "new" BLS Lötschbergbahn. In June 2001 BLS Cargo AG was founded, a daughter company of BLS especially focused on freight traffic.
Since 2004 SBB operates all long-distance services over the BLS main line, while BLS has taken over all Bern S-Bahn services and trains from Bern to Neuchatel, Luzern, Zwiesimmen and Brig.
Regionalverkehr Mittelland (RM) was formed in 1997 out of the EBT, SMB and VHB. The new company operated an extensive standard gauge network east of Bern.
In 2006 the "old" BLS merged with RM to form BLS AG. This new BLS (note: this is not an abbreviation anymore) operates trains from the railway centers Bern, Thun and Burgdorf to the stations Luzern, Huttwil, Langenthal, Solothurn, Moutier, Biel/Bienne, Neuchâtel, Payerne, Fribourg, Zweisimmen, Brig and Interlaken. Also BLS AG operates the entire S-Bahn network of Bern.

Tm 235 091-6 BLS AG Shunter

BLS Cargo seen here in Brig Nov. 08

Re420 506-8 in the latest BLS AG livery at Brig Nov. 08