Top C# Сompanies in Seattle

15 Firms

Best Seattle C# Custom Software Development Firms

Joomla Development Company
4.9

A boutique creative agency taking the power of the web to the next level.

Black Antelope is a design-focused and engineering-focused digital creative agency. We started the agency in 2009 in the San Francisco Bay Area, and ever since then we’ve been engaged with creating elegant solutions for interesting projects and amazing clients. Nowadays our team hails from Seattle, Washington to Sacramento, California to London, England.

We are technologists with broad experience with various platforms. Adapting to new or obscure tech is easy for us, and we’re not at all religious about any technology. Having experience with many technologies allows us to be extremely objective when choosing a platform for a new project.

Our framework experience includes Drupal 8 (as well as Drupal 6 and 7), WordPress, Symfony, CodeIgniter, CakePHP, Zend, Django, React, and Angular. In terms of languages we’ve worked mostly with PHP, JavaScript, Ruby, Google’s Go (Golang), and Python. We’ve worked in many industries including enterprise / B2B, non-profits, higher education, and e-commerce.

Much of the work we do is highly custom and requires a good amount of heavy lifting, in areas such as e-commerce (Drupal Commerce, Ubercart, Magento, payment gateway integrations), site/data migration, RESTful API design and development, social media design and implementation, 3rd party integrations (Salesforce, Marketo, Pardot, Hubspot, Eloqua, etc), design/dev of microsites and partner portals, multi-site and multi-language, geospatial and geo-relevant apps (MongoDB, Solr, Elasticsearch), etc.

Our approach to problem solving is very organic and we use the best tools for the job. Sometimes it can mean an agile methodology and sometimes it can mean pure creativity. We are often pulled into a bigger team to augment architecture, engineering and design capabilities. It’s also quite often that we stay engaged for a long period, and stay a valuable and consistent partner.

Overview Black Antelope
  • Black Antelope Project's Size

    $5,000 +

  • Black Antelope Number of Employees

    2 - 9

  • Black Antelope Hourly Rate

    $100 - $149 / hr

  • Black Antelope Location

    US, Seattle

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A FileMaker Developer in Seattle
4.8

Your Organization Could Work Better with a Custom‑designed App

An independent FileMaker Developer focussed on translating business workflows into user-friendly applications accessible on mobile platforms and computers.  Expert integration with web data, bookkeeping and map resources.

Overview Custom Databases of Seattle
  • Custom Databases of Seattle Project's Size

    $25,000 +

  • Custom Databases of Seattle Number of Employees

    Freelancer

  • Custom Databases of Seattle Hourly Rate

    $50 - $99 / hr

  • Custom Databases of Seattle Location

    US, Seattle

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Creating Clarity from Chaos
4.8

DevFactori provides dedicated remote teams that work closely with startups and enterprises to design, build and scale digital products.

Founded in 2016 by experienced former Microsoft and VISA engineers with marketing offices in Seattle and NYC and a state of art offshore development center in Pakistan.

DevFactori for Startups: We work closely with startups to conceptualize, design and develop your startup idea. From a free feasibility report to defining and developing your MVP with our experienced technical team on your side you’re all set for success. Setup your free no-obligation call today!

Overview DevFactori
  • DevFactori Project's Size

    $5,000 +

  • DevFactori Number of Employees

    10 - 49

  • DevFactori Hourly Rate

    $25 - $49 / hr

  • DevFactori Location

    US, Seattle

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Expert digital design and development
4.8

Were a team of humans transforming business with refreshingly uncomplicated digital products.

We are a design led development team focused on creating multi-context user experiences to serve your business’ goals by delighting your users and customers. We design and build websites and apps from scratch or by leveraging popular platforms. We are easy to work with, strategically helpful, and very effective.

Overview Helpful Human
  • Helpful Human Project's Size

    $5,000 +

  • Helpful Human Number of Employees

    10 - 49

  • Helpful Human Hourly Rate

    $150 - $199 / hr

  • Helpful Human Location

    US, Seattle

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Experienced consultants executing projects on time
4.8

NIRD Ruby on Rails Web Development Seattle WA

NIRD’s team of experienced consultants work closely with your team to develop applications that solve the real-world problems faced by enterprise applications. We’re experts in Ruby on Rails, Javascript, AngularJS, Clojure, and database management. NIRD provides end-to-end support: from project design and architecture through application development and testing our team has you covered.

Overview Independent Ruby Development
  • Independent Ruby Development Project's Size

    $25,000 +

  • Independent Ruby Development Number of Employees

    2 - 9

  • Independent Ruby Development Hourly Rate

    $150 - $199 / hr

  • Independent Ruby Development Location

    US, Seattle

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Made By Rocket
4.8

We worked closely with them to develop an interactive children’s storybook series called Plug & The Paddywhacks.

In 2011, we had a client we developed a great relationship with – a young, motivated group who were running a branding/design shop in Austin, Texas. We worked closely with them to develop an interactive children’s storybook series called Plug & The Paddywhacks. During that process, we both realized we had complimentary skills and became good friends. Toward the end of the year we had a ‘just–throwing–this–out–there’ discussion and, long-story-short, decided to merge forces and start a new company together.

During some of our initial discussions, Brian decided he wanted to do his own thing instead, but both Derrick and I made the transition to the new company. In working through the details of the new company, we came up with a great name and decided to call the new company… (wait for it)… “Rocket.” Yep, same company name, but a completely new legal entity. But, now we are calling RocketMobile.co home (much more in the works on the new site).

Overview Rocket
  • Rocket Project's Size

    $10,000 +

  • Rocket Number of Employees

    2 - 9

  • Rocket Hourly Rate

    $100 - $149 / hr

  • Rocket Location

    US, Seattle

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Innovation catalyst for the Global 500
4.7

Smashing offers UX design, UX research, visual design and prototyping for digital products, mobile apps, websites & CRMs that enhance the customer experience.

From research to realization, Smashing is a modern product, service, and digital innovation partner that works with you to make things that matter. We work with Fortune 500 clients across each stage of the innovation process to generate breakthrough ideas; plan, design, and deliver digital products and service; and lead teams to unearth new businesses, services, and products that give them undisputed distinction in a crowded market.

Overview Smashing Ideas
  • Smashing Ideas Project's Size

    $10,000 +

  • Smashing Ideas Number of Employees

    50 - 249

  • Smashing Ideas Hourly Rate

    $25 - $49 / hr

  • Smashing Ideas Location

    US, Seattle

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Augment your technical team with top talent
4.7

TECLA helps companies recruit and hire top remote software developers via direct-hire or staff augmentation.

TECLA is a staff augmentation company with offices in Seattle, Washington and South America. We partner with clients who are looking to bring on remote full-time developers and designers onto their own in-house development teams.

Work will full-time devs and designers for as long as you need them. On-demand. Fully vetted.

We help awesome tech startups augment their technical teams with the best, vetted, engineers and designers in South America through a network of top talent based in Peru, Chile, Argentina, Brazil, and Mexico.

We work with engineers proficient in:

  • iOS
  • Android SDK
  • JavaScript
  • Node.js
  • React.js
  • AngularJS
  • MEAN Stack
  • Python
  • Ruby on Rails
  • PHP
  • AngularJS
  • React.js
  • LESS / Sass / Stylus
  • SQL & NoSQL Databases

We've worked with companies that range from pre-seed startups to large enterprise, and collaborated with multi-national brands like BMW, Miller, and Roche.

Because we love working with innovative tech startups, we've had the chance to help staff startups that have raised $30M+ in combined funding and operate in industries such as e-commerce, real estate, social networking, augmented reality, sharing economy, SaaS, fashion, and more.

Overview Tecla
  • Tecla Project's Size

    $10,000 +

  • Tecla Number of Employees

    10 - 49

  • Tecla Hourly Rate

    $25 - $49 / hr

  • Tecla Location

    US, Seattle

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Unlocking the potential of the digital world
0.0

Bonsai may be based in Seattle. But we use the best talent from all over the world. That allows us to move fast. Stay ahead of the curve. And work with great people. So, while one team completes the job, another team enters the system. The sun never sets over the Bonsai Empire.

Bonsai Media Group is a digital advertising agency headquartered in Seattle. But our reach is worldwide.We develop intuitive websites and apps for the world's largest and smallest companies. And digital marketing is done the same way. Smart design and data-driven solutions are repeated over and over until every valuable penny is given away.We do it the way you would if you had about a thousand more hours in a day.

Overview Bonsai Media Group
  • Bonsai Media Group Project's Size

    $25,000 +

  • Bonsai Media Group Number of Employees

    10 - 49

  • Bonsai Media Group Hourly Rate

    $150 - $199 / hr

  • Bonsai Media Group Location

    US, Seattle

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Website, Mobile App, Seo & Software company
0.0

We are ready to work with startups, established businesses, creative agencies or any clients. Who wants a one-stop solution from us.So, dear clients or potential clients, to speed up your business, contact us today! We'd love to work with you.We also have other 250+ reviews, please visit our website and read.

We have been providing websites, apps, software, SEO and digital marketing services since 2014. We help our clients grow their business by providing the best solutions for all kinds of projects in web, apps, software, SEO and digital marketing.

Overview DevelopersTroop
  • DevelopersTroop Project's Size

    $1,000 +

  • DevelopersTroop Number of Employees

    10 - 49

  • DevelopersTroop Hourly Rate

    < $25 / hr

  • DevelopersTroop Location

    US, Seattle

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Web, Mobile, and Mapping Applications
0.0

Our staff includes top-notch designers, programmers and system administrators, ready to help at any stage of the process, with the rare ability to succeed in both large and small projects.We understand that the discipline of product development is a creative process requiring the coordination of several specialists. It is an art that needs to be practiced just like a martial art. It requires knowledge in a variety of skill sets.

PugetWorks has been in business since 2005 and has successfully completed more than 50 software projects. We've created everything from enterprise applications to iPhone games, working with large corporations, small startups and everyone in between. Our vision is for participants to invest their time in the most efficient way to create the most valuable products. The goal is that participants will then collect a monthly dividend based on the effort they previously invested in the life of the product.

Overview Ministry of Product
  • Ministry of Product Project's Size

    $10,000 +

  • Ministry of Product Number of Employees

    2 - 9

  • Ministry of Product Hourly Rate

    $100 - $149 / hr

  • Ministry of Product Location

    US, Seattle

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Earning our Reputation Everyday

Our team developed The Everyday Retail Blueprint to configure and customize the tools needed to improve the customer experience, streamline the supply chain, and report across the organization. This proven methodology helps retailers keep critical data, assets, and people connected and in sync everyday.

Overview Assemble
  • Assemble Project's Size

    $5,000 +

  • Assemble Number of Employees

    50 - 249

  • Assemble Hourly Rate

    $200 - $300 / hr

  • Assemble Location

    US, Seattle

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Launching big ideas with: startups & enterprises

Our team at Lunarbyte has expertise working with various front-end and server side technologies. We can help you pick a brand new technology stack or evaluate your existing stack.

Superstar developers taking your ideas from zero to launch. We are a passionate, driven and talented team of developers based in Seattle, WA. We work with startups, marketing agencies and enterprise companies to craft and launch big ideas.

Overview Lunarbyte.io
  • Lunarbyte.io Project's Size

    $25,000 +

  • Lunarbyte.io Number of Employees

    2 - 9

  • Lunarbyte.io Hourly Rate

    $100 - $149 / hr

  • Lunarbyte.io Location

    US, Seattle

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Caring For Your Online Business

We work on Following Business niche:- Ecommerce-Shopping, Financial businesses, Tour-Travel-Transportation, Booking Engines, Entertainment Industry, Social networking community portal, Real estate businesses, Healthcare Medical Industry - Doctors Clinics, Orhtopaedic hospitals, Education Training-Colleges, Schools, and Institutes. We Build Custom-Coded ecommerce Websites in the Following PHP Technology:- ExpressionEngine, CraftCMS, WordPress, WooCommerce, Shopify, Magento 2. We also build Custom-Coded Web Apps using these PHP technologies :- Open Source Platforms:- Drupal, Opencart, OsCommerce, Modx, CorePHP, PHP Frameworks:- CakePHP, CodeIgniter, YII Framework, Zend, Framewor, Laravel, Symfony, Hire a team of Web & Graphic Design, AJAX, CSS, HTML5, JavaScript, and node.js from W3care Technologies Pvt. Ltd.

Overview W3care Technologies Pvt. Ltd.
  • W3care Technologies Pvt. Ltd. Project's Size

    $250,000 +

  • W3care Technologies Pvt. Ltd. Number of Employees

    50 - 249

  • W3care Technologies Pvt. Ltd. Hourly Rate

    $25 - $49 / hr

  • W3care Technologies Pvt. Ltd. Location

    US, Seattle

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Possibilities Re-imagined

What makes Zazz unique is that our experts know exactly how to use advanced tools and technologies like the Internet of Things, artificial intelligence (AI), blockchain, and more.

Our team offers deep expertise, a competent approach to the development process, and revolutionary technologies. This is why we at Zazz can guarantee that you will get a dynamic app that will overcome your expectations.

Zazz is a preeminent U.S. mobile app development company that offers innovative solutions for various business niches. We have been repeatedly awarded as the best app development agency (e.g. DNA PARIS DESIGN AWARD, 2020, DESIGN INTELLIGENCE AWARD, CHINA - 2019) and nominated for the best software development company in 2017, 2018, and 2019.

At Zazz, we offer quality services to businesses in the United States and around the world that want to expand through the implementation of digital solutions. Meet our team on LinkedIn and discover the power of Zazz.

We provide solutions for various industries including games, healthcare, social networks, entertainment, EdTech, eCommerce, SaaS, finance, restaurant business, and more.

On our website, you can see what projects we have recently implemented. Among them, you will find WSPS (an app for security services), Alpha Match (a platform where consumers can search for products, services, or events related to pets in the local and international arena), and more.

Social networks are a particularly popular and promising development direction. No, we don't offer new Instagram here but solutions that will greatly expand your audience.

Our team knows the ins and outs of developing social media apps with a simple and user-friendly interface, secure login, registration, and more.

Our team has optimized all development processes to increase their efficiency. Thus, first of all, we provide consultations, where our analysts and developers evaluate, analyze, and explore ways to create a product. Then we move on to the following stages:

  • Planning. Our specialists, having defined the business goals of the client, prepare a blueprint with an outlined project plan;
  • Prototyping. At this stage, the team builds concepts and defines network layers, databases, and more;
  • Development. This stage involves close cooperation with the client so that the product can be implemented in accordance with all the requirements. That's why email correspondence is quite common;
  • Warranty. Our professional testers assess the app's performance and determine what needs to be improved;
  • Delivery. After the deployment, our company provides tech support and maintenance.
Overview Zazz
  • Zazz Project's Size

    $25,000 +

  • Zazz Number of Employees

    10 - 49

  • Zazz Hourly Rate

    $50 - $99 / hr

  • Zazz Location

    US, Seattle

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