Top 10+ Windows App Development Companies in Slovenia | Windows App Developers Slovenia 2026

Last Updated 04th November 2026 | Category: Top App Development Firms

As of November 2026, this directory tracks 55 windows companies. Hyperlink InfoSystem currently sits at the top of the list (5.0-star average from 497 verified reviews, $25 - $49 / hr, in business since 2011). Looking at the group as a whole, the midpoint hourly rate is $75, the median rating is 4.5, and 21% report a team of 50 or more. Most frequently listed specialties here include Mobile App Development, AI Development, Bot Development, and Web Development.

Every company on this page is evaluated on the same real signals: how clients have rated their work, what they charge per hour, how big their team is, and how long they've been in business. Clients rate these windows firms 4.8/5 on average. $50 - $99 / hr is the most common rate band. Roughly 20% of the companies listed report a headcount of 50 or more. Before reaching out to any shortlisted firm, it's worth cross-checking its review history and portfolio directly - every listing is manually checked (founding year, services, team size) and reviews go through a moderation step before they go live.

55
Verified Firms
$50 - $99 / hr
Most Common Rate
4.8
Average Rating
20%
Have 50+ Employees
How this list is built: Companies are added only after manual research into their foundation year, service offerings, ratings, and employee strength. Client reviews go through a verification step before being marked Verified and shown publicly. Listings marked Sponsored pay for premium placement — sponsorship does not affect star ratings or review content.

Top-Ranked windows Companies

Compare the highest-ranked firms first side by side.

Rank Company Rating Reviews Hourly Rate Team Size Founded Headquarters Action
1 5.0 497 $25 - $49 / hr 1,000 - 9,999 2011 Jersey City, NJ Visit Profile
2 4.8 8 $50 - $99 / hr 50 - 249 2011 Ljubljana - Črnuče, Slovenia Visit Profile
3
4.6 7 $50 - $99 / hr 10 - 49 2015 Ljubljana, Slovenia Visit Profile
4
4.6 7 $25 - $49 / hr 10 - 49 2001 Dolenja Vas, Slovenia Visit Profile
5 4.2 7 $50 - $99 / hr 10 - 49 2001 Maribor, Slovenia Visit Profile
6 4.7 8 $50 - $99 / hr 50 - 249 2003 Ljubljana, Slovenia Visit Profile
7 4.8 10 $50 - $99 / hr 2 - 9 2018 Ljubljana, Slovenia Visit Profile
8 — — $25 - $49 / hr 10 - 49 2015 Maribor, Slovenia Visit Profile
9 — — $50 - $99 / hr 2 - 9 2019 Ljubljana, Slovenia Visit Profile
10 4.2 8 $25 - $49 / hr 2 - 9 2024 Ljubljana, Slovenia Visit Profile

The List of Top 10+ Windows App Development Companies in Slovenia | Top Windows App Developers Slovenia November 2026

2014
$50 - $99
50 - 249
No reviews yet
—
Undisclosed
10 - 49
2011
Undisclosed
2 - 9
2005
$100 - $149
50 - 249
$5,000,000+
Mobile App Development Web Development UI-UX Design Internet of Things
No reviews yet
2012
$25 - $49
50 - 249
2011
$25 - $49
10 - 49
$100,000+
Mobile App Development Web Development Custom Software Development E-commerce Development
2011
N/A
N/A
$100,000+
Mobile App Development Web Development Custom Software Development Internet of Things E-commerce Development
2018
$25 - $49
2 - 9
2002
N/A
2 - 9
$5,000,000+
Mobile App Development Web Development Web Design
2017
$50 - $99
2 - 9
2024
$25 - $49
2 - 9
2011
$25 - $49
2 - 9
$10,000+
Mobile App Development Web Development UI-UX Design Internet of Things Game Development
2015
$50 - $99
10 - 49
4.5 9 Reviews
2007
$25 - $49
10 - 49
2018
$50 - $99
2 - 9
2019
$50 - $99
2 - 9
2015
$25 - $49
10 - 49
No reviews yet
2021
$50 - $99
10 - 49
4.6 7 Reviews
2001
$25 - $49
10 - 49
$50,000+
Mobile App Development Web Development UI-UX Design E-commerce Development
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FAQ

Frequently Asked Questions

Got questions about our specialized technology solutions? We have the answers to help you make informed decisions.

The line items that push a App Development project in Slovenia over budget are rarely the obvious ones — it's usually the number of third-party integrations, how deep the testing needs to go, and what happens after launch in terms of support and maintenance. Compliance and security work, if your project needs it, adds a real chunk on top. A proper discovery conversation with your App Development partner in Slovenia should surface most of this before you sign anything.

Most will, as long as the scope is genuinely locked down — clear requirements, a defined timeline, and agreed deliverables. Fixed-price contracts with App Development companies in Slovenia tie payment to milestones rather than hours worked, which is good for budget predictability but only works if everyone agrees upfront on what a change request looks like. Make sure that process is spelled out in writing before work starts.

It tells you quite a lot, actually. A App Development company in Slovenia with a healthy share of repeat clients is being chosen again by people who already know exactly what working with them is like — a stronger signal than a first-time review can offer. When comparing options, ask directly what share of their business comes from returning clients and, if possible, talk to one of them.

Most experienced App Development companies in Slovenia have done this kind of integration many times over — Salesforce, HubSpot, Zoho, and similar platforms are common enough that it's rarely a novel problem. What matters more is giving your App Development partner in Slovenia a full, honest picture of your current stack upfront, so the integration is built cleanly instead of patched together after the fact.

The sweet spot for value tends to be mid-size App Development companies in Slovenia — big enough to have real process and accountability, small enough to keep overhead (and therefore price) reasonable. These firms usually can't compete with large agencies on brand name, so they compete on transparent, milestone-based pricing and a portfolio that speaks for itself. Ask to see completed work at roughly your budget level before assuming a firm is a fit.

Look for App Development companies in Slovenia that offer dedicated-team arrangements and can point to client relationships that have lasted multiple years, not just multiple projects. That kind of continuity usually means the firm treats your product roadmap as something they have a stake in, rather than a queue of tickets to clear. Ask directly for a reference from a client they've worked with for two-plus years — the answer (or lack of one) tells you a lot.
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