Top 10+ Windows App Development Companies in Bulgaria | Windows App Developers Bulgaria 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 $56, the median rating is 4.3, and 23% report a team of 50 or more. Most frequently listed specialties here include Mobile App Development, Bot Development, AI 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. $25 - $49 / hr is the most common rate band. Roughly 22% 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
$25 - $49 / hr
Most Common Rate
4.8
Average Rating
22%
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 4.7 8 $50 - $99 / hr 50 - 249 2008 Sofia, Bulgaria Visit Profile
3 4.7 7 $25 - $49 / hr 50 - 249 2006 Sliven, Bulgaria Visit Profile
4 4.6 7 $25 - $49 / hr 10 - 49 2007 Sofia, Bulgaria Visit Profile
5
4.6 7 $50 - $99 / hr 250 - 999 2012 Sofia, Bulgaria Visit Profile
6
4.2 8 $50 - $99 / hr 10 - 49 2015 Sofia, Bulgaria Visit Profile
7 4.1 6 $50 - $99 / hr 10 - 49 2014 Sofia, Bulgaria Visit Profile
8
4.4 10 $25 - $49 / hr 2 - 9 2009 Sofia, Bulgaria Visit Profile
9
4.5 10 $25 - $49 / hr 10 - 49 2011 Sofia, Bulgaria Visit Profile
10 4.7 9 $50 - $99 / hr 10 - 49 2013 Sofia, Bulgaria Visit Profile

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

Sponsored
2011
< $25
1000+
$100,000+
Mobile App Development Web Development VR App Development AR App Development Unity 3D Game Development Wearable App Development UI-UX Design Web Design Internet of Things AI Development
—
$25 - $49
10 - 49
—
Undisclosed
2 - 9
No reviews yet
2020
$50 - $99
2 - 9
2025
$100 - $149
2 - 9
No reviews yet
2009
$25 - $49
2 - 9
2015
$25 - $49
10 - 49
$25,000+
Mobile App Development Web Development Custom Software Development Web Design Logo Designing
2015
Undisclosed
2 - 9
2020
$100 - $149
10 - 49
No reviews yet
2001
< $25
50 - 249
2000
Undisclosed
2 - 9
2015
$50 - $99
50 - 249
$10,000+
Mobile App Development Web Development UI-UX Design Custom Software Development Internet of Things Cloud Solutions
No reviews yet
—
$25 - $49
10 - 49
2022
$100 - $149
2 - 9
N/A
N/A
2 - 9
$5,000,000+
Mobile App Development Web Development UI-UX Design Custom Software Development Web Design Social Media Marketing SEO
No reviews yet
2010
$50 - $99
2 - 9
—
$25 - $49
10 - 49
4.1 8 Reviews
2018
$25 - $49
10 - 49
2021
$25 - $49
50 - 249
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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 better App Development companies in Bulgaria plan around the time difference rather than ignoring it — usually by shifting core hours to overlap a few hours with the client's day, and filling the rest of the gap with recorded demos, written status updates, and async-friendly tools. It's a solvable problem, but only if it's addressed explicitly before the project starts; agree on exactly how much overlap you need with your App Development partner in Bulgaria up front.

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 Bulgaria 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.

Rankings for App Development companies in Bulgaria are built from a mix of verified client reviews, the depth and relevance of each firm's portfolio, market presence, and how responsive they are on the platform itself — not a single self-reported score. Our team cross-checks submitted project details against client interviews wherever possible, so a company sitting near the top of the Bulgaria list has that position backed by more than its own marketing.

The firms that rank well among App Development companies in Bulgaria typically have verifiable client references, a track record of finished (not just started) projects, relevant certifications, and consistently positive feedback across multiple engagements — not just one standout case study. Self-reported claims with nothing to back them up carry little weight here; documented outcomes do.

Get clear, specific answers on: who owns the code once it's delivered, what the support window looks like after launch, how they handle a team member leaving mid-project, and what their process is when a client requests a scope change. Vague or evasive answers to any of these from a App Development company in Bulgaria are a bigger red flag than a slightly higher quote.

Bring a real problem from your own project to a discovery call and see how the team engages with it — the quality of their follow-up questions tells you more than any slide deck. Ask to see actual code from past work, not just screenshots of the finished product, and look for evidence of technical writing, open-source contributions, or conference talks, which are harder to fake than a polished portfolio page. A App Development company in Bulgaria with genuine depth won't be shy about any of this.

A good App Development company in Bulgaria doesn't stop at shipping features — the strongest ones bring analytics setup, structured A/B testing, and performance tuning into the conversation from early on, so the product keeps improving after launch instead of sitting static. Treated this way, a App Development partner in Bulgaria becomes an ongoing part of how the business grows rather than a vendor you call once and don't hear from again.

Look for App Development companies in Bulgaria 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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