Country ranking

Top B2B Companies in Bulgaria

TrustList ranks 73 companies in Bulgaria across 4 categories. The biggest lists are app development companies (27), IT service providers (19) and software development companies (18). Each list below is the top of its full ranking, ordered by rating, review volume and listing quality; no one pays for a position.

The businesses here list work in Plovdiv and Sofia. 73 of them have written a profile you can read before you get in touch.

Top app development companies in Bulgaria

Top 5 of 27 ranked

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Klevret
.NET · Partnership · Agile
Klevret is a software development company headquartered in Blagoevgrad, Bulgaria.
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Why #1: Based in Blagoevgrad, Bulgaria · Founded 2015 · ISO 9001, ISO 27001, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
ICON Worldwide AG
Mobile App Development · Custom Software Development · Hospitality & Leisure · Also in Switzerland
ICON Worldwide AG is a development agency headquartered in Zurich, with an engineering hub in Sofia, Bulgaria.
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Why #2: Based in Zurich, Switzerland, with a hub in Sofia, Bulgaria · Founded 2005, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Diadraw
Consumer Products & Services · Financial Services · Business Services
Diadraw is a software development team based in Bulgaria that has been building since 2011.
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Why #3: Based in Bulgaria · Founded 2011, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Infoleven GmbH
Supply Chain, Logistics, and Transport · Energy & Natural Resources · Financial Services · Also in Germany
Sofia-based web and mobile development company working long term with corporate clients and on projects for smaller firms
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Why #4: Based in Sofia, Bulgaria · Founded 2015 · Team of 40+, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Dision
Mobile App Development · Web Development · iOS App
Dision is a mobile development company based in Sofia, Bulgaria. Yavor Yordanov started it in 2015 after about five years as a freelance mobile developer.
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Why #5: Based in Sofia, Bulgaria · Founded 2015, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

Top IT service providers in Bulgaria

Top 5 of 19 ranked

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MentorMate
Mobile App Development · iOS App · UI/UX Design · Also in United States of America
MentorMate is a custom software development and digital engineering firm that began in 2001 and is based in Minneapolis. It was acquired by Tieto in July 2023.
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Why #1: Office in Bulgaria · Founded 2001 · Team of 500+, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
Melon
Custom Software Development · Web Development · Web Design
Melon is a software development company established in 2003. It builds web, mobile and desktop applications by assembling teams around a range of technology platforms.
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Why #2: Office in Bulgaria · Founded 2003 · Team of 150+, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
II
Iphos IT Solutions GmbH
Web Development · Web Design · iOS App · Also in Austria
Iphos IT Solutions GmbH is an IT services company founded in 1998 and based in Vienna. It also has a location in Bulgaria and serves clients in Austria, Germany and Switzerland.
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Why #3: Office in Bulgaria · Founded 1998, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Code Runners
Mobile App Development · Web Development · PHP
Code Runners is a small software and data analytics company with offices in Amsterdam and Sofia.
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Why #4: Based in Amsterdam, Netherlands and Sofia, Bulgaria · Founded 2012, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
OS
Orange Sputnik
iOS App · UI/UX Design · E-Commerce Development · Also in Ukraine
IT staffing and outstaffing provider supplying dedicated developer teams from Eastern Europe to startups and enterprises
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Why #5: Based in Sofia, Bulgaria · Founded 2013, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.

Top software development companies in Bulgaria

Top 5 of 18 ranked

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Connections Romania
Consumer Products & Services · Artificial Intelligence - AI · Energy & Natural Resources · Also in Bucharest
Romanian technology group offering process automation, software development, IT operations and business process outsourcing
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Why #1: Based in Belgrade and Sofia since 2016, plus representative offices in Germany, France… · Founded 2005 · ISO 9001, ISO 27001, professional accreditation, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Grafixoft
Consumer Products & Services · Business Services · Information Technology
Grafixoft is a software company from Gabrovo in Bulgaria. It began with three people and now employs more than 100 engineers, testers and consultants, according to its own site…
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Why #2: Based in Gabrovo, Bulgaria · Founded 1998 · Team of 100+, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
FRESHCODE
Mobile App Development · ERP Software Development · Web Development · Also in Ukraine
FRESHCODE is a software development company from Europe, founded in 2014. It builds custom software and AI systems, with a focus on regulated industries such as healthcare.
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Why #3: Based in 8 Tsar Kaloyan Street, Floor 3, Office 2, Sofia, Sofia, BG, 1000 · Founded 2014, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
HackSoft
React · Python · Django
HackSoft is a software engineering company from Sofia, Bulgaria.
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Why #4: Based in Sofia, Bulgaria · In business 10+ years · Team of 65+, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Sciant
Web Development · Web Design · IT Services
Sciant is an IT solutions company that built software for specific industries. It joined the Sirma group in 2024 and its website now redirects to that group.
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Why #5: Based in Sofia, Bulgaria, with a second office in Olomouc, Czech Republic · Founded 2016, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

Top advertising companies in Bulgaria

Top 5 of 9 ranked

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Brand New Vision
Web Design · Goals · Creative · Also in Chelsea
Brand New Vision is a creative and digital agency in Sofia, Bulgaria.
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Breend Ltd
Breend Ltd is a digital performance marketing agency in Bulgaria.
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CROPS ltd.
SEO · Advertising · Goals
CROPS ltd. is an advertising agency in Sofia, Bulgaria, that brings design, print production and installation together in one studio.
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Digital Connection
Advertising · Video
Digital Connection is a digital marketing and communication agency that has shaped brands since 2015.
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Digital Connection LTD
Advertising · Video
Digital Connection LTD is a full-service agency for online advertising and digital marketing, working closely with the Bulgarian traditional media agency Media Club.
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