The Best C Sharp (C#) Software Development Companies in Bulgaria

Looking for a top C Sharp software development company in Bulgaria?

The programming language C Sharp (C#), is general-purpose and used for web and mobile apps. It has a number of advantages: It's object-oriented, has automatic garbage collection, functions across platforms, has backward compatibility, and integrates well with other platforms and services.

To assist you in your search for a partner, we’ve compiled this list of the top C# developers in Bulgaria. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.

List of the Best Bulgaria C Sharp (C#) Software Development Companies

  • 1

    Infopulse

    Infopulse is a digital software company based in Kyiv, Ukraine with additional offices in Israel, Germany, France, and the U.S. Since 1991, their team of more than 1,000 employees offers custom software development, web development, IT strategy consulting, mobile development and app testing services. They usually work with mid-sized clients in the information technology industry.

    Notable Project

    Infopulse designed and developed a mobile application for an Olympic committee within a tight timeline. The app included functionalities that allowed video content sharing and scheduling information.

    “Their openness, professionalism, attentiveness, and responsibility are what’s most impressive about them.” – Marketing Manager, Olympics Committee

    Former clients
    A2B.Direct
    American Chamber of Commerce in America
    BICS
    British American Tobacco
    $ $ $ $ $
    equalizer $50,000+
    group1,000 - 9,999 Employees
    place Varna, Bulgaria
    4.7
    4.7
    9 Clutch reviews
    Awards

    Leading Global Outsourcing Providers (2018)

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  • 2

    BGO Software

    BGO Software is a Bulgarian software design company that has offices in Sofia, Plovdiv, and London, U.K. Established in 2008, the company employs a team of 73 who specialize in software and mobile app development. 

    Notable Project

    BGO Software partnered with a health organization to build a new web-based platform using Microsoft Stack. The platform was a management system that allowed users to track their workflow. After developing the platform, the team integrated it with the client's internal SQL server. The former client was impressed with the team's flexibility and professionalism.

    "BGO have always delivered admirable flexibility, where it is almost like a partnership, and their need to succeed is as great as ours." - Manager, Health Organization

    Former clients
    Aura FX
    Unimasters Logistics
    Health Research Authority
    The Respons Group
    $ $ $ $ $
    equalizer $10,000+
    group50 - 249 Employees
    place Sofia, Bulgaria
    4.8
    4.8
    6 Clutch reviews
  • 3

    New Line Technologies

    New Line Technologies is a software company of 86 employees, founded in 2009. They are headquartered in Kharkiv, Ukraine, with secondary locations in Plovdiv, Bulgaria, and Atlanta. They provide mobile app development, web development, and custom software development. They serve small and midmarket businesses in the arts, business, financial, media, and education industries.

    Notable Project

    New Line Technologies partnered with a mobile app publisher to create a video maker app. This app is usable across iOS, Android, Windows, and Mac OS platforms. They are currently working on a product roadmap for the client. The client is pleased with their skilled work.

    “I’m very impressed with them. They seem down-to-earth and humble and have an incredible work ethic.” – CEO, Mobile App Publisher
     

    Former clients
    Pizza Hut
    Axiom Medical
    Cinamaker
    SocialPutts
    $ $ $ $ $
    equalizer $25,000+
    group50 - 249 Employees
    place Plovdiv, Bulgaria
    4.9
    4.9
    15 Clutch reviews
  • 4

    Nevron Software

    Founded in 1998, Nevron Software provides expert services in big data consulting, web development, and custom software development. The team of over 10 specialists works out of offices in Wilmington, DE, and Bulgaria. The agency supports notable clients across major industries such as government, business services, and information technology.

    Notable Project

    Nevron Software provided development and design services for a consultancy firm. They spearheaded the majority of management and tasks for a special interest project. Throughout the engagement, both party experienced virtually zero complications. The client firm was impressed with Nevron's code, reliability, as they went above and beyond and continue to provide excellent ongoing support.

    "The quality of Nevron Software's work is leaps and bounds above everything else I’ve come across." –Independent Consultant, Consultancy Firm

    Former clients
    Dell
    LG
    Cisco
    MetLife
    $ $ $ $ $
    equalizer $5,000+
    group10 - 49 Employees
    place Sofia, Bulgaria
    4.8
    4.8
    2 Clutch reviews
    Awards

    ComponentSource Bestselling Publisher Award (2018) , SD Times 100: Industry Leader (2011) , Microsoft Certified Partner

  • 5

    Melon

    Melon is a software development agency that has offices in Sofia, Bulgaria and Skopje, Macedonia. Since 2003, the agency and its team of about 155 have specialized in web development and mobile app development, but also provide custom software development, app testing, and IT strategy consulting. Melon works primarily with midmarket businesses 

    Notable Project

    Melon provided software development for a mobile gaming platform. The client was extremely pleased with Melon's communication and project management.

    "They [Melon] have developed a countless number of features on the platform, and I have been mostly satisfied with their work." - Founder, Mobile Gaming Platform

    Former clients
    TimeHeroes
    Bookatable
    NIF
    Telenor
    Cashbet
    $ $ $ $ $
    equalizer $50,000+
    group50 - 249 Employees
    place Sofia, Bulgaria
    4.8
    4.8
    20 Clutch reviews
    Awards

    Forbes E-volution Awards (2016) , Australian Mobile Awards Winner (2013)

  • 6

    Areus Development

    Areus Development is a software development offshoring firm based in Bucharest, Romania. Established in 2014, the Areus Development team consists of 9 employees that provide solutions like custom software development, mobile development for Android and iOS, IT managed services, testing, and DevOps support.

    Notable Project

    Areus developed a unique location-enabled mobile application for a Romanian consulting firm. The firm's end-client was a conservation organization that focuses on protecting Romania's natural resources and wildlife, and the app enabled users to track environmental activity throughout the country. Areus successfully delivered the project to the end-client's satisfaction, and the consultancy considered it a particularly smooth partnership.

    "Areus Development was deeply involved in the project and came up with many good ideas that we hadn't thought about during development." - Business Development Manager, Consulting Firm

    Former clients
    Enea Services
    NNC Services
    Bibsma
    DataView
    $ $ $ $ $
    equalizer $10,000+
    group50 - 249 Employees
    place Russe, Bulgaria
    5.0
    5.0
    2 Clutch reviews
  • 7

    Uran Company

    Uran Company is a development agency headquartered in Denver, Colo. with offices in Bulgaria and Ukraine. The team of about 40 specializes in web development, custom software development and mobile app development. Since 2006, Uran Company has been working with various clients in different industries including advertising, education and financial services.

    Notable Project

    A network solutions firm needed a mobile application for one of its clients. Uran Company created an efficient, user-friendly platform, despite having a strict timeline. The app was created for Android but will be available for iOS in the future. 

    "The team [at Uran Company] understood how to make the right translation, and present it how we wanted it to be." - Senior Technical Officer, Network Solutions Firm

    Former clients
    Smart Kids
    TravelPlan
    Subaru
    The Go Game
    $ $ $ $ $
    equalizer $5,000+
    group50 - 249 Employees
    place Plovdiv, Bulgaria
    4.9
    4.9
    6 Clutch reviews
  • 8

    Accedia

    Accedia is a professional IT services company founded in 2012 with offices in Sofia, Bulgaria; Boston, Mass.; and San Francisco, Calif. Its team numbers more than 150 professionals, specialized in technology consulting, agile software development, and implementation of end-to-end IT solutions. Accedia’s clients are technology startups, small and mid-sized enterprises, and large enterprise businesses engaged in banking, finance and insurance, and manufacturing, among other industries.

    Notable Project

    A tech startup contracted Accedia to develop performance enhancements and new functionalities for their native iOS app. The project involved legacy code refactoring and the use of Objective C and NodeJS for simplified future app maintenance and fast and scalable iOS development respectively. The app ensured ease and convenience for the users.

    "Accedia clearly has great competencies, between the technical side, the commercial side, and the project management. Each of these is done professionally and efficiently." — CEO, Tech Startup

    Former clients
    Meetzoo
    IBM
    Malengo
    GemSeek
    $ $ $ $ $
    equalizer $1,000+
    group50 - 249 Employees
    place Sofia, Bulgaria
    4.7
    4.7
    14 Clutch reviews
  • 9

    Elders Ltd.

    Elders Ltd. is a development agency based in Plovdiv, Bulgaria. Their team of over 10 employees serves firms of all sizes in industries such as advertising, IT, media, and e-commerce. Founded in 2016, they offer custom software, mobile app, e-commerce, and wearable app development services.

    Notable Project

    Elders Ltd. provided mobile app development for a communications platform company. The team also designed the new iOS and Android platforms. They produced high-quality work. 

    "They were extremely professional and they knew what they were doing." — Software Development Manager, Communications Platform

    Former clients
    MarketVision
    One Big Splash
    Liturgical Press
    MemberTEK
    $ $ $ $ $
    equalizer $1,000+
    group10 - 49 Employees
    place Plovdiv, Bulgaria
    5.0
    5.0
    3 Clutch reviews
  • 10

    MaxSoft

    MaxSoft is an IT firm based in Sofia, Bulgaria. Founded in 1991, MaxSoft has a team of 43 that offers web, custom software, and mobile app development. They primarily work with companies in the strata management, education, and general payment industries.

    Notable Project

    A software firm hired MaxSoft to integrate a payment solution for a third-party client that connected an ERP system to an online store. The team created a complex platform that linked the store to customers' wallets. This allowed users to review transactions and recharge their accounts. The software firm applauded MaxSoft's exceptional project management and technical experience.

    "They are a professional company. They have 20 years of experience in IT solutions management, development, design, and consultation." - Project Manager, Software Firm

    Former clients
    Secura Insurance
    Capitol Insurance
    Developing Software Innovations
    Accident Fund
    $ $ $ $ $
    equalizer $1,000+
    group10 - 49 Employees
    place Sofia, Bulgaria
    5.0
    5.0
    3 Clutch reviews
  • 11

    Sciant

    Sciant is an IT development provider located in Sofia, Bulgaria. Established in 2016, their 85–90 employees are also housed in their second office in Olomouc, Czechia. Primarily serving midmarket clients in the hospitality and transportation sectors, the team provides custom software development in addition to consulting on AI, Big Data, and Blockchain.

    Notable Project

    Sciant developed custom software for an event services provider. They delivered a solution that automates interactions between the client and the third-party services they utilize. Their work facilitated relationships with new customers and enabled the client to appropriately address their needs. 

    "We have an ongoing project for Sciant to develop middleware between iVvy and other third party PMS solutions." — COO & Founder, Events Services Provider

    Former clients
    CENDYN
    DHL
    iVvy
    $ $ $ $ $
    equalizer $10,000+
    group50 - 249 Employees
    place Sofia, Bulgaria
    4.9
    4.9
    15 Clutch reviews
  • 12

    Resolute Software

    Resolute Software is a software engineering and consulting company located in Lawrenceville, Ga. Founded in 2019, they currently have about 18 employees. They provide custom software development, IT strategy consulting, and cloud consulting and Si services to primarily midmarket firms and enterprises.

    Notable Project

    Resolute Software designed and developed a website for a managed cybersecurity services company. Following brand guidelines, they built the platform to present the client's services more clearly. The platform not only made the client's services more accessible to a wider audience but also positively impacted sales. 

    "Our deadlines were met and our vision truly manifested onto our new website." —VP of Business Development, Managed Cybersecurity Services Company

    Former clients
    CODY Systems
    $ $ $ $ $
    equalizer $25,000+
    group10 - 49 Employees
    place Sofia, Bulgaria
    5.0
    5.0
    7 Clutch reviews
    Awards

    Heartcount: Top People-First Companies (2019)

  • 13

    Prime Holding JSC

    Prime Holding JSC is a software development company founded in 2013. Based in Sofia, Bulgaria, their team of over 250 engineers services mostly midmarket and enterprise companies. They specialize in industries like financial services, IT, and business services. They offer custom software development, enterprise app modernization, and CRM consulting and SI services.

    Notable Project

    Prime Holding JSC provided web development and data migration services to an e-learning platform. The team created web applications that stream audio, video, and voice, using HTML5 and WebRTC. The team meets and exceeds expectations. 

    “Essentially, we have never had a situation where our team could not do what was needed within the timeframe that was needed.” — Chief of Innovation, E-Learning Platform

    Former clients
    HiCash
    SizeCatch
    Modern Money
    Algo Store
    $ $ $ $ $
    equalizer $25,000+
    group250 - 999 Employees
    place Sofia, Bulgaria
    5.0
    5.0
    3 Clutch reviews
  • 14

    Code Plus Ltd.

    Code Plus Ltd. is a .NET development agency located in Blagoevgrad, Bulgaria. Founded in 2015, they have four employees specializing in web and mobile app solutions, custom software development and digital marketing. They work for various global businesses, particularly in the consumer products and hospitality industries.

    Notable Project

    Code Plus Ltd. built an ASP.NET- and AngularJS-driven web portal for a housekeeping service to process customer payments and organize internal workflow. Their professionalism and communicative approach helped them deliver a top-notch solution on time. The system Code Plus Ltd. developed improved productivity and decreased the required staff size significantly.

    “Code Plus’ system increased the speed of our daily operations, decreased our total staff by 30 percent, and improved our level of client satisfaction through a more transparent and accessible payment process. We were impressed by their drive to deliver a top-quality product.” – CEO, Housekeeping Service

    Former clients
    VetPartners Ltd
    Denta Clinik
    Lidia Tours
    $ $ $ $ $
    equalizer $5,000+
    group2 - 9 Employees
    place Blagoevgrad, Bulgaria
    5.0
    5.0
    4 Clutch reviews
  • 15

    Reflection Infosys

    Reflection Infosys is an IT company based in Veliko Tarnovo, Bulgaria. The company, founded in 2010, has a team of more than ten that provides custom software development, web development, mobile app development, UX/UI design, IT strategy consulting, AI, blockchain, application management & support, and enterprise app modernization services. Reflection Infosys serves small and larger-sized companies in various industries.

    Notable Project

    A voice tech company hired Reflection Infosys to help them develop their main software product. Reflection Infosys worked closely with the company to develop the software in .NET and implement integrations with social media platforms and with YouTube and Audioengine. The project is ongoing and Reflection Infosys has been exceeding expectations with their work.

    "He will bring you something that not only involves making it work, it also involves creativity and understanding what the customer needs more than just a backend that works beautifully." - CTO, Voice Tech Company

    Former clients
    KUKUI
    Social Network Media Development
    $ $ $ $ $
    equalizer $5,000+
    group10 - 49 Employees
    place Veliko Tarnovo, Bulgaria
    5.0
    5.0
    2 Clutch reviews
  • 16

    Bulgarian Software House - BSH

    Bulgarian Software House (BSH) is a software service provider based in Sofia, Bulgaria. The company, founded in 2000, has a team of more than 20 that provided Unified Communications Consulting & SI, custom software development, enterprise app modernization, web development, and cloud consulting & SI services. BSH serves mid-market and enterprise-sized companies in the financial services, medical, and telecommunications industries.

    Notable Project

    An insurance company hired Bulgarian Software House (BSH) to develop a single-sign-on solution that provides a secure mechanism to incorporate the existing internal network applications into the SharePoint 2013 based extranet portal. BSH analyzed the company's requirements, and then designed and developed the software, providing an agile approach of delivery, which elaborated and scaled the company's initial RFP. They completed the project and met all of the company's expectations.

    "As a partner BSH were very easy to work with. They are professionals who managed to set high expectations and delivered on their promises." - Head of Project Management Office, Insurance Company

    Former clients
    Societe Generale Expressbank
    Microsoft Bulgaria
    ING
    Actavis
    $ $ $ $ $
    equalizer

    Undisclosed

    group10 - 49 Employees
    place Sofia, Bulgaria
    5.0
    5.0
    2 Clutch reviews
  • 17

    CodeCoda Ltd.

    Founded in 2016, CodeCoda Ltd. is a development company based in Plovdiv, Bulgaria with a secondary location in Dublin. They have a team of 17 employees who provide custom software development, web development, mobile app development, and e-commerce development services. They work with midmarket and small businesses in the business services, consumer product, and financial services industries.

    Notable Project

    CodeCoda partnered with a hotel booking application to provide JavaScript development and API support to help with the influx of calls the client receives at one single time. They worked to improve the management features, which were successful.

     "CodeCoda continually delivers high-quality code on time or even faster than we expect. I can trust their team to know what they’re doing and to seek clarity when our instructions are vague or incomplete. We’re not getting just what we ordered; we’re getting something that works." –– CTO, Hotel Booking Application

    Former clients
    OU INTL Ltd
    $ $ $ $ $
    equalizer $25,000+
    group50 - 249 Employees
    place Plovdiv, Bulgaria
    5.0
    5.0
    1 Clutch review
  • 18

    Kvaba Interactive

    Kvaba Interactive is a software agency founded in 2015 in Sofia, Bulgaria. Their team of no more than 50 specializes in web, custom software, and AR/VR development solutions for clients in the industries of advertising, gaming, and arts.

    Notable Project

    Kvaba Interactive provided design and development solutions for a mobile comms application. Kvaba Interactive worked on various projects with the application for more than four years. So far, all of Kvaba Interactive’s work has been met with positive feedback.

    “Even if we don’t have ongoing work, they’ll reach out to us with great ideas.” - Regional Marketing Manager, Mobile Comms Application

    Former clients
    Volkswagen
    Fanta
    Coca-Cola
    $ $ $ $ $
    equalizer $5,000+
    group10 - 49 Employees
    place Sofia, Bulgaria
    4.7
    4.7
    3 Clutch reviews
  • 19

    Ever Technologies

    Ever Technologies is a software agency founded in 2017 with over 10 employees. Based in Sofia, Bulgaria, they provide custom software, web, and mobile app development solutions for small and medium-sized businesses.

    Notable Project

    Ever Technologies created a client portal for an audio company. The portal was created to improve the company’s scalability. The portal was built cost-effectively.

    “They work very effectively.” - Founder, Audio Company

    Former clients
    Nabo As
    CUE
    Orthodox Union
    $ $ $ $ $
    equalizer $5,000+
    group10 - 49 Employees
    place Sofia, Bulgaria
    5.0
    5.0
    2 Clutch reviews
Tell us about your project
NEED HELP SELECTING A COMPANY?

Based on your budget, timeline, and specifications we can help you build a shortlist of companies that perfectly matches your project needs. Schedule a free consultation with a Manifest Analyst.

TELL US ABOUT YOUR PROJECT