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Software Engineering. Beyond Code.

INSSIO helps established companies stabilize, modernize, and scale business-critical software.

  • Min project size
    $25,000+
  • Hourly rate
    $50 - $99 / hr
  • Employees
    50 - 249
  • Locations
    Beograd, Serbia
  • Year founded
    Founded 2013

Overview by:

Reviewer avatar
Danilo Vulović
Founder / CEO About the Team

1 Locations

  • Beograd , Serbia

Select Focus Area
Application Platforms
Azure Platform
100%
AI Agent Development Focus
AI Agent Frameworks
60%
AI Agent Platforms & Builders
40%
AI Agent Purpose Focus
Workflow AI Agents
30%
Coding & Development AI Agents
20%
Productivity AI Agents
20%
Customer Service AI Agents
15%
Data Analysis AI Agents
15%
AI Technologies & Models
Open AI GPT-3
60%
Anthropic
30%
Cohere
10%
Frameworks and CMS
.NET
65%
Generative AI Focus
Programming & Scripting
C#
45%
Typescript
25%
SQL
10%
Industries
Insurance
35%
Supply Chain, Logistics, and Transport
30%
Energy & natural resources
20%
Information technology
10%
Business services
5%
Clients
Midmarket ($10M - $1B)
55%
Enterprise (>$1B)
35%
Small Business (<$10M)
10%

Pricing Snapshot

Min. project size $25,000+
Avg. hourly rate $50 - $99 /hr
Rating for cost 4.9 /5

What Clients Have Said

INSSIO is perceived as offering good value for cost, with several clients noting that their pricing fits well within budgets. Project costs mentioned include €50,000 for a custom software development project. Clients appreciate timely delivery and effective communication throughout the development process.

This summary is based on verified Clutch reviews.

Most Common Project Size

$50,000 - $199,999 based on 6 reviews
< $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

Select a service to see pricing information

Highly Rated Similar Providers

INSSIO Review Insights

Overall Review Rating

4.9
  • Quality 5.0
  • Schedule 4.7
  • Cost 4.9
  • Willing to Refer 5.0

Top Mentions

Review Highlights

  • Strong Technical Expertise

    INSSIO's technical proficiency is consistently praised across reviews. They excel in custom software development, cloud computing, and integrating complex systems, often exceeding client expectations with high-quality, scalable solutions.

  • Cultural and Value Alignment

    INSSIO is often chosen for their cultural fit and alignment with client values, contributing to strong partnerships where both parties learn and grow together.

  • Room for Improvement in Language Support

    One client noted that expanding language support could benefit INSSIO's service, particularly for non-native English speakers, to serve a broader audience.

  • Value for Cost

    Clients appreciate the value INSSIO offers for the cost, often citing fair pricing and cost-effective solutions as key reasons for selection.

  • Effective Project Management

    Clients commend INSSIO for their project management skills, noting timely deliveries and clear communication. They use tools like MS Teams and Azure DevOps to manage projects efficiently, ensuring a smooth workflow.

  • High Customer Satisfaction

    Clients express high satisfaction with INSSIO's services, often continuing to extend projects due to successful outcomes. Their solutions have significantly enhanced client operations and capabilities.

INSSIO Reviews

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Web Dev & Design for Transport Software Company

  • Web Design Web Development
  • Angular .NET Android App Development iPad iOS App Development iPhone iOS App Development ASP.NET C# Typescript
  • $10,000 to $49,999
  • Mar. 2023 - Ongoing
4.5
Quality
5.0
Schedule
4.0
Cost
4.5
Willing to Refer
5.0

"Overall, we felt very well supported throughout the project."

Sep 21, 2023
Director, TickDone Pty Ltd
Damien Sutton
Verified
  • Supply Chain, Logistics, and Transport
  • Sydney, Australia
  • 1-10 Employees
  • Online Review
  • Verified

INSSIO has developed and designed a web interface for a transport software company. They build the frontend using .NET MAUI, implement security protocols, leverage CI/CD pipelines, and integrate code changes. 

Custom Software Development for Forecasting SaaS Co

  • Custom Software Development
  • .NET C#
  • $50,000 to $199,999
  • Mar. 2021 - Ongoing
5.0
Quality
5.0
Schedule
4.5
Cost
5.0
Willing to Refer
5.0

"They’re exceptionally well qualified in Microsoft technologies’ implementation, and what they do is high quality."

Sep 30, 2021
CEO & Founder, iCUE Solutions
Dirk Liebich
Verified
  • Other industries
  • Germany
  • 1-10 Employees
  • Phone Interview
  • Verified

INSSIO has provided custom software development services for a forecasting and planning SaaS solution company. They’ve changed the architecture and codebase and create an API using Swagger.

Custom Software Development for Insurance Company

  • Custom Software Development
  • $50,000 to $199,999
  • July 2020 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They are top-notch developers who help bring solutions to reality."

Sep 23, 2021
Director of Product Management, Sedgwick
Jason Kurutz
Verified
  • Automotive
  • Chicago, Illinois
  • 10,001+ Employees
  • Online Review
  • Verified

An insurance company collaborated with INSSIO for custom software development. The goal is to create a platform for auto insurance losses, using secured and modern procedures and following the SDLC framework. 

Custom Software Development for Consulting Firm

  • Custom Software Development
  • $50,000 to $199,999
  • Apr. 2019 - Jan. 2020
5.0
Quality
5.0
Schedule
4.5
Cost
5.0
Willing to Refer
5.0

"We trusted their judgement 100%."

Jul 13, 2021
CEO, Consulting Firm
Anonymous
Verified
  • Other industries
  • Fulda, Germany
  • 1-10 Employees
  • Online Review
  • Verified

A consulting firm hired INSSIO for custom software development. The team’s main responsibility was to build a multi-tenant web app for freight proposal analysis.

Multiple App Dev Projects for Claims Management System

  • Custom Software Development
  • $50,000 to $199,999
  • Apr. 2014 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Their most impressive trait is their ability to think outside of the box."

Aug 6, 2019
President, Nationwide Appraisals
Chris Bakes
Verified
  • Financial services
  • Elgin, Illinois
  • 11-50 Employees
  • Online Review
  • Verified

As part of a multi-app dev project, INSSIO designed, developed, and kept up a proprietary claims management system. Currently, they still maintain the app, building out ongoing improvements.

Software Dev & Cloud Computing for SaaS Company

  • Cloud Consulting & SI Custom Software Development
  • Confidential
  • Sep. 2022 - Sep. 2023
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Their self-sufficient way of working and pragmatic approach were impressive."

Sep 20, 2023
CEO, Gendas GmbH
Lars Heinemann
Verified
  • Other industries
  • Berlin, Germany
  • 1-10 Employees
  • Online Review
  • Verified

INSSIO led the end-to-end development of a SaaS company's application. They also provided cloud computing services, including cloud DevOps and Azure hosting.

Custom Software Dev for IT Solutions Provider

  • Custom Software Development
  • $10,000 to $49,999
  • Jan. 2021 - Apr. 2022
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They're very creative when it comes to conducting research and finding solutions."

Apr 6, 2022
Head of Digital Transformation, Asygma Ltd.
Michael Diaconescu
Verified
  • Other industries
  • London, England
  • 1-10 Employees
  • Online Review
  • Verified

An IT solutions provider engaged INSSIO to create an Azure architecture that could enable multiple vendor platform integrations. The team also developed a screen-sharing program for the use of sales agents. 

Showing 1-7 of 7 Reviews

Our Story

INSSIO was founded in 2013 with a simple idea: great software partnerships require more than writing code. Over the years, we have grown through long-term relationships with companies across North America and Western Europe. Many of our engineers stay with the same clients for years, building deep product and business knowledge. That continuity shapes how we work today - senior-led, embedded, accountable, and focused on software that matters to the business.

Meet the Team

Danilo Vulović

Danilo VulovićFounder / CEO

Founder and CEO of INSSIO with a software engineering background. Danilo works with CTOs and engineering leaders on team structure, software delivery, modernization, vendor transitions, and long-term engineering partnerships.

Miloš Stojković

Miloš StojkovićCTO / AI Lead

CTO and AI Lead at INSSIO, responsible for engineering standards, architecture, technical leadership, and AI initiatives. Miloš supports teams building and modernizing business-critical .NET, Azure, and AI-enabled software.

Marko Nikolić

Marko NikolićDelivery Manager

Delivery Manager at INSSIO, responsible for coordinating engineering and QA teams, client stakeholders, priorities, and releases. Marko focuses on predictable delivery and long-term collaboration across complex software engagements.

What Sets Us Apart

Long-Term Embedded Teams

Our engineers integrate directly into client teams, build deep system knowledge, and often remain on engagements for years rather than months.

Senior-Led Delivery

We prioritize experienced engineers and QA specialists who can contribute independently, communicate directly with stakeholders, and take ownership of delivery.

Engineering + QA Under One Roof

Software development, manual QA, and Playwright automation work together as part of the same delivery model, reducing release risk and improving continuity.

Locations (1)

Jove Ilića 67 BeogradSerbia 11000

16 - 20

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