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INSSIO helps established companies stabilize, modernize, and scale mission-critical software. We work with CTOs and engineering leaders dealing with overloaded teams, unreliable vendors, legacy systems, and release risk. Our engineers embed directly into client teams and support software that already runs the business - claims platforms, logistics systems, maritime operations, billing tools, analytics platforms, and other operational systems where delivery instability creates real business risk. Core stack: .NET / C# · Angular · Azure · Blazor · MAUI · SQL Server · Manual QA · Playwright automation Companies usually come to us in one of three situations: → Their internal team cannot hire senior .NET, Angular, or Azure talent fast enough. → Their current software vendor is slow, unstable, underperforming, or difficult to trust. → Their release process has become risky and they need stronger manual QA or Playwright coverage. We do not operate like a short-term project shop. Our engineers work inside client teams, build deep system knowledge, and stay long enough to become part of the operational backbone. Why companies work with INSSIO: · 12+ years serving North America and Western Europe · Client partnerships lasting 5–10+ years · Senior-led delivery · Direct access to engineers and leadership · ISO 27001 certified · Manual QA and Playwright automation integrated into delivery INSSIO is best suited to established companies with software already in production, an internal technical owner, and a real business need for continuity, modernization, capacity, or release.

INSSIO Questions

The INSSIO annual revenue was $5.8 million in 2026.

Danilo Vulović is the Founder and CEO of INSSIO.

35 people are employed at INSSIO.

INSSIO is based in Belgrade, Central Serbia.

The NAICS codes for INSSIO are [541511, 54, 5415, 54151, 541].

The SIC codes for INSSIO are [73, 737].

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