Berlin.
Headquarters.
On Singerstraße, a stone's throw from Alexanderplatz, the threads of the ja-dialog Group come together. Sales, strategy and business support are at home here — and Berlin is also a fully operational onshore service location with 150 colleagues.
Strategy. Sales. Accountability.
With 150 colleagues on site, Berlin is both the group's headquarters and a fully operational location. Day-to-day operations, account management and customer support run here just as in Wolfen, Prishtina or Asunción — each location handles the engagements it leads.
What sets Berlin apart are the group-wide topics. This is where we answer questions that need more than day-to-day work: What does your service model look like in five years? Which processes are worth rebuilding with AI? How do you size your locations so quality and cost align?
As at all our locations
- Service operations — Day-to-day across all channels, for the engagements led here
- Account management — Care for our own customer engagements
Only in Berlin
- Executive management & strategy — Group steering, multi-site orchestration, business and operations support
- Sales — First point of contact for new customers, acquisition of new engagements
- CX consulting — Operations audits, AI roadmaps, restructuring
- Pilot operations — Setup of new services before they roll out into the line at the locations
Your contacts
in Berlin.
When you get to know ja-dialog, the conversation almost always begins here. Three contacts with clear responsibilities — from the strategic first round to the concrete offer.

Nico Eisenreich
First point of contact for existing customers.

Dr. Christoph Baumgärtner
First point of contact for new customers.

Sebastian Rosche
Inside sales and marketing.
What it looks like here.
Bright rooms, short distances, Berlin-Mitte right outside the door. If you'd rather come in person — the door is open.
Three more locations.
One shared quality.
Each location has its own profile. Together they deliver operational excellence, language diversity and economies of scale across two continents.
Bitterfeld-Wolfen
Saxony-Anhalt, GermanyOnshore operations for German-language engagements. High volume, short paths.
Learn more → Nearshore HubPrishtina
KosovoMultilingual nearshore hub for broad language coverage with close time-zone fit.
Learn more → Offshore HubAsunción
ParaguayMultilingual offshore hub serving Germany, Europe and the Americas.
Learn more →Rather in person
than on the phone.
Berlin-Mitte, five minutes' walk from Alexanderplatz. Call, set a date, drop by — we'll have coffee waiting.
How to find us
Berlin-Mitte is easy to reach. Let us know in advance and we'll pick you up at the entrance.
10179 Berlin
S-Bahn Jannowitzbrücke · 6 min walk
Straight to Berlin?
Send us a request, and one of the two will personally get back to you within 24 hours.
Request a quote →Both are directly available for your inquiries.