“We worked together for over 9 months to deliver a game-changing educational platform with some forward-thinking design elements (...) I would have no hesitation in recommending Callstack to others, to provide a flexible solution to an existing workforce or on a longer-term basis as part of a remote team.”
Cross-platform experts serving you from Wroclaw, Poland.
Callstack.io Sp. z o.o. seated in Wrocław, Poland, at Rybacka 7, 53-656 Wrocław, entered in the Register of Entrepreneurs of the National Court Register, kept by the District Court of Wrocław-Fabryczna in Wrocław, VI Commercial Division of the National Court Register under the number 0000606530, with share capital of PLN 8,000.00, with tax identification number (NIP) 8992785616, and statistical number (REGON) 363921820.