ONSEO has been building technology for over three decades. What started as a small IT company in Vinnytsia in 1992 has grown into a 900+ person studio working across iGaming, healthcare, AI, education and social impact - with offices in Ukraine, Malta and Bulgaria.
From Vinnytsia and Kyiv to Sofia and Malta. Each city has its own teams and its own focus, but they're all part of the same company building the same product ecosystem. Where you're based matters less than what you build.
OUR STORY
The Timeline behind ONSEO
Six names. Three decades. One continuous evolution — from a small Vinnytsia IT company to a 900+ person international studio.
— 1992
Computer Multimedia Systems
Outsourcing IT company founded in 1992 in Vinnytsia under the name Computer Multimedia Systems. Software for telecommunications and education.
— 2002
Flextronics Design Ukraine
Flextronics Design Ukraine leads in technological innovation, offering exceptional design and engineering solutions.
— 2006
Aricent Ukraine
Aricent was a leader in communications software, building strategic solutions. By creating the best and most innovative products in the industry, it helped its clients change the world.
— 2009
Frog Design
Frog Design is a global leader in innovation and design, renowned for creating groundbreaking products and experiences.
— 2010
Orneon
Orneon was one of the leading video game development companies.
— 2012
Win Interactive
Win Interactive was a game development company that created games for various platforms, including PC, Mac, Web, iOS and Android.
— 2015
ONSEO
Everything before led here. Today — 900+ people, offices across Europe, and products that reach millions of users worldwide.
onseo - a trusted partner
Why Partners Trust Us
Partnerships that last decades, not quarters. Here's what keeps our partners coming back.
Confidentiality
Full data protection and strict NDA compliance across every project, partnership, and client engagement.
Reputation & Stability
30+ years in business. Consistent delivery through economic shifts, industry changes and global disruptions.
Mutual Respect
Partnerships built on transparency, honest communication and shared goals — not just contracts.
Technical Depth
600+ technical specialists across backend, frontend, mobile, game engines, AI and infrastructure.
Growth
People stay because they grow. New roles, new challenges — without needing to change companies.
Domain Expertise
Deep experience in iGaming, healthcare, education, business intelligence and emerging technologies like AR and AI.
onseo - a trusted partner
Who We Work With
Our teams build products for some of the biggest names in iGaming and beyond — as well as social projects that go far beyond business.
— OUR PARTNERS
— SOCIAL PROJECTS
Management Team
Leaders Behind Onseo
The people behind 30 years of technology, growth and partnerships that shaped ONSEO into what it is today.
Alex Ousach
Founder and CEO
Professor of maths at Vinnytsia Pedagogical University, co-founder of Playtika, serial entrepreneur with substantive exits to bwin.Party, Crown and Flextronics.
Danny Frishman
Commercial Director
Sector veteran with senior leadership roles at Playtech and Crown. Degree in law and business from Reichman University and member of Israeli Bar Association.
Eugene Minyailo
CFO
Twenty years as a Finance Director and CFO in numerous technology companies in Ukraine and Malta, covering tax, internal audit, and regulatory reporting.
JOIN ONSEO
Your Next Chapter Starts Here
Great teams build great products. Come be part of both.
