Top 10+ Startups App Development Companies in Bulgaria | Startups App Developers Bulgaria 2026

Last Updated 06th November 2026 | Category: Top App Development Firms

As of November 2026, this directory tracks 56 startups 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 4.4, and 22% 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 startups firms 4.8/5 on average. $25 - $49 / hr is the most common rate band. Roughly 21% 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.

56
Verified Firms
$25 - $49 / hr
Most Common Rate
4.8
Average Rating
21%
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 startups 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+ Startups App Development Companies in Bulgaria | Top Startups App Developers Bulgaria November 2026

Sponsored
2011
< $25
1000+
$5,000,000+
Mobile App Development Web Development VR App Development AR App Development Unity 3D Game Development Wearable App Development IoT App Development UI-UX Design AI Development
No reviews yet
2010
$50 - $99
2 - 9
2020
$100 - $149
10 - 49
2013
$50 - $99
10 - 49
—
$25 - $49
2 - 9
2011
$25 - $49
10 - 49
No reviews yet
2012
$100 - $149
Freelancer
No reviews yet
2001
< $25
50 - 249
2011
$25 - $49
10 - 49
4.2 7 Reviews
2003
$25 - $49
50 - 249
$10,000+
Mobile App Development Web Development UI-UX Design Custom Software Development Game Development

DSI

4.2 8 Reviews
—
$50 - $99
2 - 9
2015
Undisclosed
2 - 9
2025
$100 - $149
2 - 9
2020
$25 - $49
2 - 9
No reviews yet
2022
$25 - $49
2 - 9
2008
$50 - $99
2 - 9
No reviews yet
—
Undisclosed
2 - 9
No reviews yet
2009
$25 - $49
2 - 9
1997
$50 - $99
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.

Yes — a good number of App Development companies in Bulgaria have built their client base primarily from overseas, particularly across North America and Western Europe, and have the operational habits to prove it: documented handoffs, async-friendly communication, and contracts written with international clients in mind. If cross-border delivery matters to you, ask a App Development firm in Bulgaria directly for a reference from a client in your own country rather than taking "we work globally" at face value.

Outsourcing to Bulgaria is routine at this point, but it still deserves the basics done properly: a signed NDA, a clear clause on who owns the IP once it's built, and an understanding of what happens if either side wants to walk away mid-project. Established App Development companies in Bulgaria will have handled these terms many times before and shouldn't push back on any of them — hesitation there is itself a useful signal.

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.

The surprises usually aren't from the App Development company's own fees — they're things like third-party tool licenses, cloud hosting once the project scales past the free tier, app store fees, and whatever maintenance retainer kicks in after launch. A straight-talking App Development firm in Bulgaria will list these out unprompted; if a proposal looks suspiciously clean, ask directly what isn't included in the number you're seeing.

A verified badge on a App Development company's Bulgaria profile means the platform has confirmed the firm's identity and business registration, and has spoken directly with at least some of the clients referenced in their portfolio. It doesn't guarantee a perfect fit for your project, but it does rule out the more obvious risk of an unvetted or misrepresented listing — worth prioritizing over unverified entries when the choice is close.

The reputable ones treat it as non-negotiable — NDAs signed before any real discussion happens, access controls that limit who on the team can see what, and contract language that clearly transfers all IP to the client on final payment. Internal confidentiality agreements for staff are standard practice at any App Development company in Bulgaria worth hiring. If a firm is loose about any of this in early conversations, that's a preview of how they'll handle it once your data is actually in their systems.

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.

Platforms like Clutch and GoodFirms are a good starting point, since they require some independent validation of the work described. A strong case study from a App Development company in Bulgaria spells out the original problem, what was actually built, and a measurable result — not just a screenshot and a paragraph of praise. Match case studies to your own industry and scale wherever you can; a great result in an unrelated space tells you less than it seems to.
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