Top 10 C# Developers in Seattle

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Top 10 C# Developers in Seattle

December 2022

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

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. 

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

  • 1
    • $25,000+
    • 2 - 9 employees
    • Seattle, WA

    Lunarbyte.io is a development agency based in Seattle. Since 2019, the 3-person team has built websites, custom software, and mobile apps for predominantly small businesses.  

    Clients

    • DDM Imports
    • Clean the Scene
    • Preflight Mitigator
    • Dollar Flight Club

    Industries

    Notable Project

    Lunarbyte.io developed software programs for a testing firm. They met with their client’s multiple times to outline the project. Since then, they’ve troubleshot problems and fixed bugs as needed.

    “They usually complete the task within 24-hours or by the end of the week.”

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  • 2
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $100,000+
    • 250 - 999 employees
    • Seattle, WA

    Founded in 2007, Theorem is a software development firm. The midsize team specializes in custom software development, ux/ui design, IoT development, IT strategy consulting, and more. The company is based in Los Angeles, California; Santa Monica, California; New York, New York and San Francisco, California.

    Clients

    • AT&T
    • Starbucks
    • Caterpillar
    • American Express

    Industries

    Notable Project

    TheoremOne developed a strategy and an MVP for an oil and gas construction marketplace. They provided a full delivery team, two full stack engineers, and QA testers.

    "Their thought-leadership in design and their ability to quickly pick up on what we were looking for from the platform."

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  • 3
    • Scheduling

      4.9
    • Quality

      5.0
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 10 - 49 employees
    • Seattle, WA

    Slashdev is a small software development company. The Winter Park, Florida-based company was established in 2021. Their services include custom software development, web development, mobile app development, wearable app development, and more.

    Industries

    Notable Project

    A SaaS company hired Slashdev to develop a direct-to-fans platform that would help digital creators mentor young artists. They helped with product discovery, roadmap building, and MVP creation. 

    "They were a great fit for startups."

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  • 4
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      4.5
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 50 - 249 employees
    • Bellevue, WA

    Redtech is a custom software development firm. They are located in Bellevue, Washington and have a midsize team. Their services include custom software development, non-voice bpo/back office services, digital strategy, web development, and more. The agency was established in 1995.

    Notable Project

    Redtech provided BI and analytics for a software company. They redesigned a learning catalog and supported in understanding its current status.

    "Their subject matter expertise and professionalism were impressive."

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  • 5
    • $10,000+
    • 50 - 249 employees
    • Bellevue, WA

    Virtuosity Consulting, a custom software development firm, was launched in 2008. They are located in Bellevue, Washington and Navi Mumbai, India and have a midsize team. Their services include custom software development, IT managed services, enterprise app modernization, web development, and more.

    Industries

    Notable Project

    A software company hired Virtuosity Consulting for staff augmentation. The team supplied qualified process-driven and self-motivated managers for early planning, daily execution, monthly releases, and more. 

    "The agency and the candidates they supplied really took ownership of the project."

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  • 6
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.2
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $100,000+
    • 250 - 999 employees
    • Seattle, WA

    Founded in 2014, PYCOGroup is a development firm. Their team of around 370 employees is based in Brussels, with an additional office around the globe. They focus on custom software, web, and mobile app development.

    Clients

    • Microsoft
    • American Express
    • Volkswagen
    • Coach

    Industries

    Notable Project

    PYCOGroup developed an iOS app for tablets that allows customers to customize products in-store. Since launch, they’ve provided ongoing maintenance and new product/offer updates.  

    "Whenever we’ve brought up challenges, they’ve ironed them out quickly." 

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  • 7
    • Scheduling

      4.5
    • Quality

      4.0
    • Cost

      3.5
    • NPS

      4.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 250 - 999 employees
    • Seattle, WA

     Neudesic is a technology company with offices in Irvine, CA, Atlanta, GA, Chicago, IL, Irving and Houston, TX, Denver, CO, Las Vegas, NV, Exton, PA, Tempe, AZ, Portland, OR, New York, and India.  It specializes in big data consulting, custom software development, cloud consulting, and mobile app development. The agency of more than 800 employees was founded in 2002. Most clients work in the healthcare, energy, and gaming industries. 

    Clients

    • Microsoft
    • SRP
    • Kelley Blue Book
    • Whole Foods

    Industries

    Notable Project

    Neudesic provided Azure development staff augmentation for a legal services company. The team helped move and transform the client's data using Azure Data Factory, in order to build Power BI dashboards.

    "Their programmers were top-notch."

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  • 8
    • $10,000+
    • 250 - 999 employees
    • Bellevue, WA

    SOUTHWORKS is a custom software development company based in London, United Kingdom; Bellevue, Washington and Vancouver, Canada. The company focuses on custom software development, cloud consulting & SI, BI & big data consulting & SI, and cybersecurity and has a midsize team.The company was launched in 2004.

    Industries

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  • 9
    • $10,000+
    • 10 - 49 employees
    • Bellevue, WA
    User experience agency Amberteq was founded in 2008. The company offers ux/ui design, custom software development, web development, mobile app development, and more and has a small team. The company is in Bellevue, Washington.

    Industries

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  • 10
    • Undisclosed
    • 10 - 49 employees
    • Kirkland, WA

    Jetstream Software, Inc. Is a software development company launched in 1994. The small team provides custom software development. The agency is in Kirkland, Washington.

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  • 11
    • $10,000+
    • 50 - 249 employees
    • Seattle, WA

    DMC, Inc. is an engineering and development firm founded in 1996. It is headquartered in Chicago, but has other locations in Somerville, Mass.; Denver, Colo.; New York, N.Y.; Houston, Texas; and St. Louis, Mo. DMC, Inc. has about 150 employees. While DMC's origins are in robotics and manufacturing automation, they currently offer custom software development and big data consulting services.   

    Clients

    • 3M
    • Ford
    • Cadbury
    • Bosch

    Industries

    Notable Project

    A large ground logistics firm hired DMC to develop a unique IoT device for their centrally-owned fuel depots. DMC created a device to speed up the refueling process and provide useful data to the firms that own the depots.

     

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  • 12
    • $75,000+
    • 50 - 249 employees
    • Seattle, WA

    TangoTeams is an app development company. Established in 2021, the team provides mobile app development, web development, custom software development, and other application development. Their midsize firm is Seattle, Washington-based.

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  • 13
    • $10,000+
    • 10 - 49 employees
    • Seattle, WA

    Established in 2005, Palador is a custom software development firm. Based in Seattle, Washington and Yogyakarta, Indonesia, their small team offers custom software development, enterprise app modernization, ux/ui design, web development, and more.

    Industries

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  • 14
    • $10,000+
    • 50 - 249 employees
    • Seattle, WA

    Devblock is a software development company. The midsize Seattle, Washington-based company was founded in 2008. Their team focuses on custom software development, mobile app development, web development, e-commerce development, and more.

    Industries

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