Top 60 C# Developers in Chicago
The Best of December 2025Looking for a top C Sharp software development company in Chicago?
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 Chicago. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Chicago C Sharp (C#) Software Development Companies
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1$50,000+1,000 - 9,999 employeesChicago, IL10Pearls is a custom software development company located in Vienna, Virginia; Medellín, Colombia; New York, New York and San Rafael de Escazú, Costa Rica. The large firm was established in 2004. Their services include Custom Software Development, Mobile App Development, Artificial Intelligence, cloud consulting & SI, and more.Read More
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HughesNetIndustries
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2$25,000+1,000 - 9,999 employeesChicago, ILRead More
ELEKS is a custom software development firm established in 1991. Their large team is in Tallinn, Estonia; L'viv, Ukraine; Berlin, Germany and Rzeszów, Poland. Their services include Custom Software Development, BI & big data consulting & SI, cloud consulting & SI, Cybersecurity, and more.
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BNY Mellon DPD Acino DRAXIndustries
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3$50,000+50 - 249 employeesChicago, ILSaritasa, a software development company, is headquartered in Newport Beach, California; New York, New York; Chicago, Illinois and Manhattan Beach, California. The midsize company was established in 2005. Their team provides Custom Software Development, AR/VR development, Web Development, Mobile App Development, and more.Read More
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Mitsubishi Makita ASCO Power Technologies WinegardIndustries
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4$25,000+1,000 - 9,999 employeesChicago, ILSimform is a cloud consulting & SI company. They are headquartered in Orlando, Florida; Los Angeles, California; Chicago, Illinois and San Francisco, California and have a large team that specializes in cloud consulting & SI, Custom Software Development, Mobile App Development, Artificial Intelligence, and more. The agency was established in 2010.Read More
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RedbullIndustries
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5$25,000+50 - 249 employeesChicago, ILVelvetech LLC is a midsize software development company. The Sunny Isles Beach, Florida-based company was established in 2004. Their services include Custom Software Development, CRM consulting and SI, Mobile App Development, Web Development, and more.Read More
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Apache CorporationIndustries
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6$25,000+250 - 999 employeesChicago, ILAI firm HatchWorks AI was launched in 2016. They are based in Atlanta, Georgia; Chicago, Illinois; San José, Costa Rica and Medellín, Colombia and have a midsize team. HatchWorks AI focuses on Artificial Intelligence, AI Consulting, Custom Software Development, and Generative AI.Read More
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AT&TIndustries
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7$5,000+50 - 249 employeesChicago, ILCustom software development firm Liventus was founded in 2002. The firm provides Custom Software Development, Artificial Intelligence, AI Agents, BI & big data consulting & SI, and more and has a midsize team. The firm is based in Chicago, Illinois; Northbrook, Illinois; Matthews, North Carolina and Scottsdale, Arizona.Read More
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Now Health GroupIndustries
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8$50,000+10 - 49 employeesChicago, ILRead More
Spark Equation is a software engineering company headquartered in Chicago, with additional offices in Saint Petersburg and Krasnoyarsk, Russia. Founded in 2014, their team of 24 experts provide custom software development, mobile app development, and web development to their clients.
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Headway -
9$10,000+50 - 249 employeesChicago, ILMojo Trek is an IT staff augmentation company. Founded in 2017, the team focuses on IT staff augmentation, Custom Software Development, IT managed services, Application Testing, and more. Their midsize company is Chicago, Illinois-based.Read More
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Fortune 100 QSR Company Fortune 500 QSR Company AlphaBotIndustries
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10$25,000+250 - 999 employeesHouston, TXTekRevol is a midsize application development company founded in 2018. Their team specializes in Mobile App Development, IT staff augmentation, Custom Software Development, Web Development, and more. The company is located in Houston, Texas; Red Deer, Canada; Newark, California and New York, New York.Read More
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11$50,000+50 - 249 employeesFrisco, TXFounded in 2008, Five Pack is a mobile application development company. Their midsize team is in Frisco, Texas; St. Louis, Missouri; Dallas, Texas and Austin, Texas and focuses on Mobile App Development, IT staff augmentation, Custom Software Development, Web Development, and more.Read More
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American AirlinesIndustries
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12Undisclosed50 - 249 employeesChicago, ILRead More
Prime TSR is a boutique technology consultancy based in Chicago with a team of 34 experts. Since their founding in 2013, they have provided BI & big data consulting & SI, custom software development, and cloud consulting & SI solutions for clients ranging from startups to enterprises. They are familiar with cloud services such as AWS. Azure, and Google Cloud.
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13$10,000+10 - 49 employeesChicago, ILRead More
New Peak Solutions is a SharePoint consulting and software solutions company with offices in New York. Founded in 2003, they have two employees specializing in custom software and mobile app development and IT consulting for various clients throughout the United States. Their expertise covers SharePoint, Office 365, ERP and CRM integration, and mobile, custom, and cloud development.
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Marshall IPIndustries
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14$10,000+250 - 999 employeesChicago, ILMoon Technolabs is a midsize custom software development firm. Headquartered in Chicago, Illinois; Ahmedabad, India and Pflugerville, Texas, the firm was established in 2009. Their team offers Custom Software Development, Artificial Intelligence, Mobile App Development, IoT development, and more.Read More
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Siemens ZeroEyes Freelap LCBOIndustries
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15$100,000+250 - 999 employeesChicago, ILRead More
Objective Solutions is a Sao Paulo, Brazil-based. The midsize firm was launched in 1995. Their services include.
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LiferayIndustries
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16$10,000+50 - 249 employeesChicago, ILLaunched in 2013, Taction Software LLC is a midsize mobile application development company. Their team specializes in Mobile App Development, Custom Software Development, Artificial Intelligence, BI & big data consulting & SI, and more. The firm is headquartered in Chicago, Illinois; Cheyenne, Wyoming; Noida, India and Austin, Texas.Read More
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First National BankIndustries
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17$5,000+10 - 49 employeesChicago, ILRead More
MLP Co is a website development firm founded in 2018. The agency focuses on web development, mobile app development, and custom software development and has a small team. The agency is in Kyiv, Ukraine.
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Custom Software Development Services. You own the business – you make the rules. It is this thesis that underlies our work on custom developed software.Industries
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18$25,000+50 - 249 employeesChicago, ILLaunched in 2018, Foxbox Digital is a mobile app development company. Located in Chicago, Illinois; Minneapolis, Minnesota and Roswell, Georgia, their midsize team focuses on Mobile App Development, Web Development, UX/UI Design, IT managed services, and more.Read More
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AnthemIndustries
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19$10,000+50 - 249 employeesChicago, ILRead More
Alligatortek is a software company headquartered in Chicago with an office in Oakbrook Terrace, Ill. Since 1993, their team of 59 has lent its services in custom software development, mobile app development, and cloud consulting & SI. They specialize in Azure, and have experience in working with frameworks such as .NET, AngularJS, and React Native.
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Feeding America -
20$10,000+10 - 49 employeesChicago, ILRead More
MXOTech is a software development and IT services agency based in Chicago. Established in 2005, they have 29 employees, who provide services like custom software development, IT managed services for their software platforms, and IT strategy consulting.
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Health Care Services CorporationIndustries
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21$50,000+10 - 49 employeesChicago, ILTangoCode is a software development company founded in 2015. They are based in Chicago, Illinois and have a small team. Their services include Custom Software Development, Mobile App Development, Web Development, IoT development, and more.Read More
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GoogleIndustries
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22$10,000+10 - 49 employeesChicago, ILRead More
Chicago Software Solutions is a software development and consulting firm with just over 10 employees. The Chicago-based firm has been around since 2000 and has helped various sized clients in different industries with their web development, software development, and mobile app development needs.
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Pendragon;Forms ManagerIndustries
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23$5,000+10 - 49 employeesChicago, ILHristov Development, an UX agency, was founded in 2013. Their small team is headquartered in Chicago, Illinois and Aguascalientes, Mexico. The company offers UX/UI Design, cloud consulting & SI, IT managed services, IT staff augmentation, and more.Read More
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CylindoIndustries
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24$10,000+10 - 49 employeesChicago, ILRead More
CSW Solutions is a solutions services company based in Chicago. Founded in 2005, they have about 20 employees that focus on middle-market companies and enterprises in the financial services, retail, healthcare, telecommunications, and manufacturing industries. They specialize in web development, custom software development, mobile app development, and IT managed services.
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British Petroleum (BP) Power Equipment Direct Mediacom Telecommunications Gifts For You NowIndustries
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25$25,000+50 - 249 employeesElmhurst, ILRead More
Bayshore Solutions is an end-to-end digital agency based in Tampa, Fla. with an office in Denver. Founded in 1996, their team of more than 10 with teams that provide brand storytelling, web design, and development, e-commerce, digital marketing, creative and hosting solutions.
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MasoniteIndustries
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26$5,000+50 - 249 employeesChicago, ILIn New Delhi, India; Oakville, Canada and Chicago, Illinois, StudioKrew is an application development company. They specialize in Mobile App Development, Custom Software Development, AR/VR development, UX/UI Design, and more and were established in 2013.Read More
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27$25,000+10 - 49 employeesChicago, ILTwinCore is a cloud consulting & SI company based in Chicago, Illinois. The small firm was founded in 2011. Their services include cloud consulting & SI, CRM consulting and SI, Custom Software Development, Web Development, and more.Read More
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n-treeIndustries
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28$10,000+250 - 999 employeesChicago, ILProgrammers - AI, Data & Software is a midsize artificial intelligence company based in Chicago, Illinois. They offer Artificial Intelligence, BI & big data consulting & SI, Custom Software Development, Generative AI, and more and were founded in 1990.Read More
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29$25,000+250 - 999 employeesOak Brook, ILSenecaGlobal is a custom software development firm. They are based in Oak Brook, Illinois; Hyderabad, India and Nashville, Tennessee and have a midsize team. The firm specializes in Custom Software Development, Enterprise App Modernization, Artificial Intelligence, AI Consulting, and more.Read More
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30$10,000+10 - 49 employeesOak Park, ILUptic IO LLC is an Oak Park, Illinois-based DevOps Managed Services company. They focus on DevOps Managed Services, Enterprise App Modernization, cloud consulting & SI, Custom Software Development, and more and were launched in 2017.Read More
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