If you arrive in Berlin by Train:

Zoological Garden

Take the underground line U2 in direction Pankow to U-Bahn station Wittenbergplatz, change into line U1 in the direction of Warschauer Straße to U-Bahn station Schlesisches Tor. Upon exiting the U-Bahn station, turn right into Schlesische Straße. After about 500m you reach number 28 on your left. Go through the second gate and go straight ahead. The office of the skilldeal AG is the last brick building on the right side directly at the river Spree.

Alexanderplatz or Ostbahnhof

Take any of the S-Bahn going east  (S5 to Straußberg, S75 Wartenberg or S9 to Schoenefeld airport) to S-Bahn station Warschauer Straße, turn left and cross the bridge (200m), transfer to subway line U1 in the direction Uhlandstraße to U-Bahn station Schlesisches Tor. Upon exiting the U-Bahn station, turn right into Schlesische Straße. After about 500m you reach number 28 on your left. Go through the second gate and go straight ahead. The office of the skilldeal AG is the last brick building on the right side directly at the river Spree.

 If you arrive in Berlin by Air:

Tegel Airport

Take the bus TXL in direction Alexanderplatz. This is a very scenic route, you will pass the Central Railway Station Berlin, the Federal Chancellery and the Reichstag. After passing "Unter den Linden" get of at the last stop Alexanderplatz. Change into any of the S-Bahn going east  (S5 to Straußberg, S75 Wartenberg or S9 to Schoenefeld airport) to S-Bahn station Warschauer Straße, turn left and cross the bridge (200m), transfer to subway line U1 in the direction Uhlandstraße to U-Bahn station Schlesisches Tor. Upon exiting the U-Bahn station, turn right into Schlesische Straße. After about 500m you reach number 28 on your left. Go through the second gate and go straight ahead. The office of the skilldeal AG is the last brick building on the right side directly at the river Spree.

Schönefeld Airport

Take the shuttle 163 or 171 or walk ca. 500m to the S-Bahn Berlin Schoenefeld airport. From the S-Bahn station Schoenefeld airport go by S-Bahn S9 in the direction of Grunewald, to the station Treptower Park. Get off and take bus 265 in the direction Hallesches Tor. Get off at the station "Taborstraße." You are almost directly in front of the entrance. Enter the smaller of the two archways (number 28) and go straight ahead. The office of the skilldeal AG is the last brick building on the right side directly at the river Spree.