transN was established in 2012 by combining together several individual companies running public transport services in the area around the city of Neuchâtel and the city of La Chaux de Fonds. One of these smaller companies which was fused into transN was the Chemin de Fer des Montagnes Neuchâtelois CMN. CMN in turn had been formed in 1947 by fusing together two very small rail companies: Le Régional des Brenets, RdB and Ponts-Sagne-Chaux de Fonds, PSC. CMN operated the two lines formerly run by these individual companies. The lines are Le Locle - Les Brenets (4,1km, opened in 1890) and Les Ponts-de-Martel - La Chaux-de-Fonds: (16,2km, opened in 1889.)

In 2001 CMN had three old (from 1950) and three modern one coach electric motor units. This one, no. 6, was the first of the newer series, built in 1991. It is 20,70 m long, weighs 35,5 tons, has a maximum speed of 80 km/h and operates on 1 meter gauge tracks with 1500 V DC.
Photo of CMN BDe 4/4 no.6 from La Chaux de Fonds station at 1. Nov. 2001 by Ilkka Siissalo.

transN operates a tram line along the shores of the lake Neuchâtel. It is an 8,8 km long line opened already in 1892. There is just one line with 12 stops from Neuchâtel to Boudry. Formerly there were seven different tram lines in Neuchâtel, but this is the only one left. Currently transN has six tramcars of the type Be 4/4 (numbers 501 to 506) and four similar unmotorised steering cab coaches (no.551-554). They are from 1981 (no.505-506 from 1988).
Here we see the motor wagon 506 and the steering cab wagon 554 at Pervou 5.5.2016. Picture by Ilkka Siissalo.

This is the other end of the same tram-train as seen above. The unmotorised steering cab coach 554 is very similar to the motor wagon but is missing its pantograph and the electric motors.
The steering cab wagon 554 at Pervou 5.5.2016. Picture by Ilkka Siissalo.

In 2002 the same motor wagon no.506 was still fully covered by advertisement tapings.
Picture from Neuchâtel Place Pury 5.10.2002 by Ilkka Siissalo.

transN operates also several funicular lines. This one is the fully automated funicular called Fun'ambule, which links Neuchâtel's railway station with the university campus. It was opened for public use in 2001.
Picture from Neuchâtel railway station 5.5.2016 by Ilkka Siissalo.

The other train of the Fun'ambule funicular is yellow. The construction of the train is highly unusual. A large capacity is needed, so the trains are quite long. But since the hill slope is very steep and the gradient is changing abruptly, the train is composed of several very small pieces attached together with exotic looking hinges.
Picture from Neuchâtel railway station 5.5.2016 by Ilkka Siissalo.