Best C# Development Companies

12 Companies - Rankings updated: September 03, 2026

We evaluate every agency on DesignRush for technical expertise, delivery quality, and verified feedback to help businesses find reliable software development services. Some listings may be paid.

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  • Azumo

    Verified Verified by the DesignRush team for authenticity and credibility.

    Build Intelligent Apps for Web, Mobile, Data, AI and Cloud

    Azumo builds custom web, mobile, and AI software with nearshore teams in South America, serving Meta, Omnicom, and the Discovery Channel. Its SOC 2-certified engineers delivered 40%+ search precision gains for Meta. Best fit for startups and enterprises needing U.S.-aligned nearshore development teams...

    Top Services:

    • AI Development
    • Software Development
    • Staff Augmentation
    • Mobile App Development
    • Big Data Analytics
    • Show more
    Location
    San Francisco, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $55/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    9 Projects Listed

    Azumo Services

    • AI Development
    • Software Development
    • Staff Augmentation
    • Mobile App Development
    • Big Data Analytics
    • DevOps Consulting
    • Cloud Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Discovery Channel
    • Meta
    • Zynga
    • Jostens
    • Assembled Brands
    • NGL
    • NCSoft
    • Twitter
    • Horoscope.com
    • Bento
    Data sourced from the agency's DesignRush profile

    Azumo Reviews & Testimonials

    • Michael S.
      Michael S. Director at Software Development Company
      5.0 ★

      Software Development Review from Michael S.

      We selected Azumo to develop our software. We transitioned from another development company, so Azumo was initially responsible for migrating our existing code and environments. We are currently still working with Azumo as our nearshore software development team on adding new items to our software.

    • Anonymous
      Anonymous CTO at Healthcare Company
      5.0 ★

      UI/UX Design Review from Anonymous

      Azumo helped us migrate our existing UIs into a new framework, creating reusable components and the infrastructure needed for future development. The developer they assigned became a seamless part of our team, always punctual, responsive, and a great fit overall.

    • Anonymous
      Anonymous VP Product & Engineering at Sales & Mktg Software Company
      5.0 ★

      Software Development Review from Anonymous

      Thanks to Azumo’s work, our product is now more scalable, optimized, and ready for a growing user base. Their team has managed the engagement effectively, keeping us updated and addressing any challenges along the way. We’ve appreciated their constant availability and proactive communication.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.8 4.8 (12)
    4.6 4.6 (20)

  • Sembit

    Unique Software for Your Unique Business

    Sembit is a seasoned software development company based in Oregon. Its expertise spans app development, cloud services, and platform integration, making the agency a versatile software development partner. With proficiency in diverse technologies and a commitment to fostering a positive work environment...

    Top Services:

    • Software Development
    • Web Development
    • Mobile App Development
    • AI Development
    • Cloud Consulting
    • Show more
    Location
    Portland, Oregon
    Number of Employees
    Under 49
    Average Hourly Rate
    $199/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    6 Projects Listed

    Sembit Services

    • Software Development
    • Web Development
    • Mobile App Development
    • AI Development
    • Cloud Consulting
    • eCommerce Development
    • UI/UX Design
    • Web Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • USCB
    • Kashi Labs
    • Master Clinician Network
    • Enviral Tech
    Data sourced from the agency's DesignRush profile

    Sembit Reviews & Testimonials

    • Bryan Beck
      Bryan Beck President at The Beck Group
      5.0 ★

      AI Consulting Review from Bryan Beck

      Shaun introduced us to some of the functions available in the ChatGPT Business plan. We discovered some very powerful tools that we will use in our lumber industry research and consulting work. Shaun was a great, knowledgeable tour guide and helped us get pointed in the right direction.

    • Zach Gibbs
      Zach Gibbs Finance & Ops Analyst at Prairie Capital
      5.0 ★

      Web Development Review from Zach Gibbs

      Sembit was fantastic to work with. They integrated our Zoho APIs and LIMS system seamlessly, and the dashboards they helped build have quickly become tools our teams use every day. The project went smoothly from start to finish, and the results have had a real impact on how we manage operations.

    • Adam Kaufman
      Adam Kaufman Director Product Marketing at Efficient Computer
      5.0 ★

      Software Development Review from Adam Kaufman

      The team at Sembit and their work product has been nothing short of stellar. The team is a delight to work with. We have actively looked for more projects for them to work on because their deliverables are timely and of high quality. Sembit started out doing a mobile app project for us, then they grew to doing our Playground project for our effcc Compiler. They have also done a number of backend systems projects as well. The Sembit team are trusted advisors when we need to deploy a new system or work on a new project. Sembit will always be a go-to partner.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.7 4.7 (5)
    5.0 5.0 (6)

  • AppsNation

    Apps Solution For Every Nation.

    APPSNATION is the USA's top leading mobile application development company providing multiple Mobile App development services in IOs, Android, IoT, AR/VR, Games app development, Cross-platform, Wearable, eCommerce and much more. Contact Us to boost your Company's potential for next-level excellence...

    Top Services:

    • VR/AR
    • Mobile App Development
    • Wearables
    • Software Development
    • Social Media Marketing
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    7 Projects Listed

    AppsNation Services

    • VR/AR
    • Mobile App Development
    • Wearables
    • Software Development
    • Social Media Marketing
    • Web Development
    • DevOps Consulting
    • Blockchain
    • Digital Marketing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Deliverables
    • Gymnasium
    • Bonus Buddy
    • Unilever
    • Sun Life
    • Habib Oil Mills
    Data sourced from the agency's DesignRush profile

    AppsNation Reviews & Testimonials

    • Ibrahim Ali Owner at Ali Traders
      4.8 ★

      Social Media Marketing Review from Ibrahim Ali

      We at Ali Traders recently partnered with AppsNation to handle our social media marketing, and we couldnt be more satisfied with the results. Our pages were barely active before, with low engagement and no clear branding. Within just a few weeks, their team completely transformed our presence across Facebook, Instagram. What we loved most was their strategy it wasnt just about posting pictures or running ads. AppsNation understood our business model, audience, and tone. They created consistent branding, unique post designs, powerful captions, and even helped us set up monthly content calendars. Their targeted ad campaigns generated real inquiries, not just likes. We saw a 40% increase in leads within the first month alone!

    • Tyson Lewis
      Tyson Lewis Head Roofing Consultant at Lewis Roofing Solutions
      5.0 ★

      Web Development Review from Tyson Lewis

      AppsNation's SEO efforts resulted in improved search engine rankings and increased organic traffic. They also enhanced the client's domain authority and conversion rates. The team was transparent, responsive, and proactive. Their client-centric approach and technical expertise were also impressive.

    • Zain Khanzada
      Zain Khanzada Review from Google
      5.0 ★

      Zain Khanzada's Review Sourced from Google

      AppsNation did an amazing job creating my business website. From start to finish, they were clear, informative, and guided me through every step of the process. I shared my ideas and the overall vibe I wanted for the site, and their execution was seamless. They were incredibly responsive, always getting back to me within minutes to answer any questions I had. As someone who isn't tech-savvy, I really appreciated their patience and ability to help me with everything I needed to do on my end. I highly recommend AppsNation for any web design needs. I couldn't be more satisfied with the result!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.4 4.4 (2)
    5.0 5.0 (3)

  • eDOT Solutions

    We Enrich Lives Through Better User Experiences

    eDOT Solutions delivers intelligent digital platforms that drive smarter operations, innovation, and learning. With roots in maritime, we serve hospitality, healthcare, and education, creating scalable, insight-driven systems that enhance performance and decision-making...

    Top Services:

    • Web Design
    • Web Development
    • WordPress Website Design
    • Software Development
    • Mobile App Development
    • Show more
    Location
    Vasco da Gama, India
    Number of Employees
    50 - 99
    Portfolios Count
    17 Projects Listed

    eDOT Solutions Services

    • Web Design
    • Web Development
    • WordPress Website Design
    • Software Development
    • Mobile App Development
    • IT Services
    • Managed Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Encore
    • Analysis Group
    • Texas Regional Bank
    • innoVia Productions
    • International Institute of Marine Surveying
    • CTI Maritec
    • K Marine Ship Management (KMSM)
    • K-Line Ship Management (India) Pvt Ltd
    • Kawasaki Kisen Kaisha, Ltd. - K Line
    • The Institute of Marine Engineers (India) - IME(I)
    Data sourced from the agency's DesignRush profile

    eDOT Solutions Reviews & Testimonials

    • Hrish Samant
      Hrish Samant Director at Ideawharf Inc.
      5.0 ★

      Software Development Review from Hrish Samant

      I have worked with eDOT Solutions as a key delivery partner for Ideawharf, particularly in the design, build, and deployment of RWE data collection platforms for HEOR related Center based studies for some the top pharma companies including Moderna, J&J and Pfizer. Their team has consistently handled complex eCRF requirements, including multi-language implementations, cohort-specific logic, and detailed study workflows, while still meeting aggressive turnaround timelines. What stands out most is their responsiveness and ownership they stay engaged through requirements, development, testing, deployment, and post-launch support, which has been critical to delivering reliable solutions for our clients.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.3 4.3 (1)

  • ProcessIT-Custom Software

    Custom Business Software

    ProcessIT build Bespoke or Custom Software to match your unique business processes, just for you. You know your Business, we know Software. Tell us what you need & we'll build & adapt your logic into a full computer program so you can accurately manage, track and control your business. Save substantial...

    Top Services:

    • Software Development
    • Business Consulting
    • Web Design
    • Mobile App Development
    • Cloud Consulting
    • Show more
    Location
    Hastings, New Zealand
    Number of Employees
    Under 49
    Minimal Budget
    Under $1,000
    Portfolios Count
    2 Projects Listed

    ProcessIT-Custom Software Services

    • Software Development
    • Business Consulting
    • Web Design
    • Mobile App Development
    • Cloud Consulting
    • CRM Consulting
    • Big Data Analytics
    • DevOps Consulting
    • Web Development
    • eCommerce Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Wilton Joubert Limited
    • Account Collections
    • Alexander Construction
    • Hill Nurseries Limited
    • Patton Engineering
    • Lindisfarne Collage
    • Auckland Independantly Qualified Persons
    • Cedenco Foods New Zealand Ltd
    • Rotorua Forest Holdings
    • NZ Federation of Amateur Winemakers & Brewers
    Data sourced from the agency's DesignRush profile
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  • TekHive Ltd.

    We Make IT Happen!

    TekHive Web Design Studio is a London based creative design studio founded in 2020. We specialize in creating custom Web Design & Development, Graphic Design, Brand Development, Online Marketing, and SEO as our core services. Our team works flawlessly and timely to create a website of your dream in a time...

    Top Services:

    • Web Design
    • Web Development
    • WordPress Website Design
    • eCommerce Development
    • Logo Design
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $54/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    10 Projects Listed

    TekHive Ltd. Services

    • Web Design
    • Web Development
    • WordPress Website Design
    • eCommerce Development
    • Logo Design
    • Graphic Design
    • Software Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Outcomist
    • IamAbi
    • Rangers FC Supporters Association
    • The Greenery Natural Kitchen
    • Naturally You Nutrition
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • High Digital

    Designing. Building. Delivering

    High Digital is a Cyber Essentials certified and ISO/IEC 27001 accredited data product developer. We design, build, and deliver data products. We adopt a collaborative and agile approach to cover all areas from product planning and design to UI/UX, development, delivery, and support...

    Top Services:

    • Software Development
    • AI Development
    • Big Data Analytics
    • UI/UX Design
    • Cloud Consulting
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Minimal Budget
    Under $1,000
    Portfolios Count
    2 Projects Listed

    High Digital Services

    • Software Development
    • AI Development
    • Big Data Analytics
    • UI/UX Design
    • Cloud Consulting
    • Product Design
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • The Marketing Practice
    • Kingpin Communications
    • 195 Demand by Agent3
    • Drop Secure
    • Arch
    Data sourced from the agency's DesignRush profile
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  • The Joseph Company

    We Ignite Your Vision

    The Joseph Company is a trusted technology partner providing custom web development & IT services to businesses across St. Louis and Southern Illinois. Headquartered in Arnold, Missouri, we serve clients throughout the region with a commitment to excellence, responsiveness, and long-term partnership...

    Top Services:

    • Software Development
    • eCommerce Development
    • Business Consulting
    • Web Design
    • Web Development
    • Show more
    Location
    Arnold, Missouri
    Number of Employees
    Under 49
    Average Hourly Rate
    $120/hr

    The Joseph Company Services

    • Software Development
    • eCommerce Development
    • Business Consulting
    • Web Design
    • Web Development
    • WordPress Website Design
    • UI/UX Design
    • Mobile App Development
    • IT Services
    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Placard Wizard
    • Charity Clothing Pickup
    • Prestige Trucking, Inc.
    • Wilmington Clinic
    • Checkered Cottage
    • Nuway Inc.
    • Intellus Automotive Systems
    • Southwest Oral Surgery
    • Ingenium Partners
    • Castle Design
    Data sourced from the agency's DesignRush profile

    The Joseph Company Reviews & Testimonials

    • Stella Oberkrom
      Stella Oberkrom Review from Google
      5.0 ★

      Stella Oberkrom's Review Sourced from Google

      I have worked with Sam, Jan, and the Joseph Company team for over 14 years and I could not be happier with their services!

    • Richard Rice
      Richard Rice Review from Google
      5.0 ★

      Richard Rice's Review Sourced from Google

      Our company provides software as a service to some of the largest transportation companies nationwide. For over 16 years TJCO has been our trusted go to software developer. TJCO support and response times go over and above expectations. We appreciate their professional approach and look forward to working with them again on our next development project.

    • Julio Mino
      Julio Mino Review from Google
      1.0 ★

      Julio Mino's Review Sourced from Google

      I ordered the DNC scrub they never delivered. I am still waiting for my refund. Ordered on a Saturday got an email stating " our offices are closed we will reopen bla bla bla" After a few days of hassle they decided to refund however so far the money did not show up in my credit card. I don't recommend doing business with this company.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    3.9 3.9 (7)

  • Rasonix

    Innovate, Build, Elevate.

    Welcome to Rasonix - Your Partner in Web Development and Design Solutions At Rasonix, we believe in the power of exceptional web experiences. As a leading web development company, we are dedicated to delivering innovative and tailored solutions to meet your digital needs...

    Top Services:

    • SEO
    • Mobile App Development
    • Web Development
    • UI/UX Design
    • Software Testing
    • Show more
    Location
    Bengaluru, India
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    8 Projects Listed

    Rasonix Services

    • SEO
    • Mobile App Development
    • Web Development
    • UI/UX Design
    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • MyTyles
    • Devstringx Technologies Pvt Ltd
    • LensHub
    • Stylo Boutique
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • TEBOTronic

    Your Challenges, Our Solutions

    We specialize in software and web development, AI-enhanced product images, social media management, digital marketing, and unique designs helping businesses boost online visibility, engagement, and growth...

    Top Services:

    • Product Design
    • Web Development
    • Social Media Marketing
    • Graphic Design
    • eCommerce Development
    • Show more
    Location
    Kosovo, Macedonia
    Number of Employees
    Under 49
    Average Hourly Rate
    $5/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    1 Project Listed

    TEBOTronic Services

    • Product Design
    • Web Development
    • Social Media Marketing
    • Graphic Design
    • eCommerce Development
    • Branding
    • Digital Services
    • CRM Consulting
    • Big Data Analytics
    • Software Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Boutique Industry
    • Construction Industry
    • Consumer Goods Industry
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • Bellosoft Limited

    Technology Connects

    Bellosoft is a global software development agency helping businesses scale through custom solutions in web, mobile, AI, and cloud technologies. With a focus on innovation, agility, and measurable results, we partner with startups and enterprises in the US, UK, and Europe to deliver reliable products and...

    Top Services:

    • Software Development
    • UI/UX Design
    • Web Development
    • Mobile App Development
    • eCommerce Development
    • Show more
    Location
    Watford, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $65/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    16 Projects Listed

    Bellosoft Limited Services

    • Software Development
    • UI/UX Design
    • Web Development
    • Mobile App Development
    • eCommerce Development
    • AI Development
    • Software Testing
    • Web Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Modern Tribe
    • Greyhound Racing Ireland
    • Unrvld
    • Levo
    • Moran's Catering
    • Novo Digital
    • Sentel
    • Mortgage Propeller
    • Etain
    • FBA
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • Syed Ahmer Shah

    Design, Sync, Energize

    Syed Ahmer Shah is a Software Engineer & Full-Stack Developer building web, mobile, SaaS, and AI solutions for startups and growing businesses. I turn real business needs into secure, scalable, and maintainable products with a focus on performance, usability, and long-term value...

    Top Services:

    • Software Development
    • Web Development
    • SEO
    • Mobile App Development
    • AI Development
    • Show more
    Location
    Hyderabad, Pakistan
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    23 Projects Listed

    Syed Ahmer Shah Services

    • Software Development
    • Web Development
    • SEO
    • Mobile App Development
    • AI Development
    • WordPress Website Design
    • eCommerce Development
    • Web Design
    • UI/UX Design
    • Graphic Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Flowstep
    • Rania
    • Harshita
    • Emmanuel Chinedu
    • Alex
    • Ahmed
    • Olena Bomko
    • Fardeen
    • Tariq
    • Arsalan
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

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