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Top C# Companies in Seattle, WA (77)

Consumer Web • Information Technology • Software • Database • Consulting • Cybersecurity • Data Privacy
Seattle, Washington, USA
2 Employees

Our expertise spans IT strategy, data center and cloud administration, server and network management, cybersecurity, project management, and software. From designing and optimizing enterprise applications and cloud environments to implementing robust security measures and compliance frameworks, we help businesses streamline operations, improve performance, and enhance security.

AdTech • Hardware • Marketing Tech • Software • Design
7 Offices
883 Employees

Founded in Southern California, VIZIO is a leading HDTV company and America's #1 Sound Bar Brand. At VIZIO, we believe that technology should make life simpler. Everything we touch is built with the goal of creating the most optimal experience for our customers at the best value. While this may seem straightforward, the industry we reside in is not. It's our belief that consumers are smart enough to see through the industry jargon and are ready for a company that is honest, human and intuitive. We strive to shake up the ordinary, and instead, bring our customers something exceptional. We see beyond the conventional and aspire to bring wonder into everyday life. We are innovators, transformers, and always on the customer's side.

HR Tech • Software
Bellevue, Washington, USA
270 Employees

Limeade is a software company that elevates the employee experience and helps build great places to work. The Limeade ONE platform offers employee well-being, engagement, inclusion and communications solutions in one seamless user experience.

Big Data • Cloud • Consumer Web • Healthtech • Software • Cybersecurity • Generative AI
32 Offices
61,700 Employees

Since 1993, EPAM Systems, Inc. (NYSE: EPAM) has leveraged its software engineering expertise to become a leading global product development, digital platform engineering and top digital and product design agency. Through our ‘Engineering DNA’ and innovative strategy, consulting, and design capabilities, EPAM works in collaboration with its clients to deliver next-gen solutions that turn complex business challenges into real business outcomes. EPAM’s global teams serve clients in more than 55 countries across five continents. We've been recognized as a Built In Best Places to Work (2024-2025), Glassdoor Best Place to Work (2023-2025), and named a Top 100 Most Loved Workplace by Newsweek (2021 - 2024).

AdTech • Digital Media • Marketing Tech • Mobile
4 Offices
180 Employees

Infillion brings location and attention-based marketing together to fulfill the promise of connected consumer experiences. Leveraging integrated technology, Infillion enables better targeting via unique data sets, engaging creative, and actionable measurement solutions for advertisers looking to bridge the physical and digital worlds. Among the fastest-growing companies in ad technology, Infillion is advancing the integration of advertising, marketing, and CX through value exchange applications that captivate customers, optimize their attention, and honor their time and privacy.

Artificial Intelligence • Digital Media • Gaming • Machine Learning • News + Entertainment • Software
14 Offices
40,000 Employees

Warner Bros. Discovery is a premier global media and entertainment company, offering audiences the world’s most differentiated and complete portfolio of content, brands and franchises across television, film, sports, news, streaming and gaming. We're home to the world’s best storytellers, creating world-class products for consumers.​ WBD is bringing together the scripted and the unscripted, the local and the global, the timely and the timeless. Taking the world’s greatest possibilities and making them a reality. Creating impact, inspiring imagination, and building connections. Here you can succeed, here you are supported, here you are celebrated.

Healthtech • Software
2 Offices
38 Employees

MD Clarity is a healthtech company focused on bringing financial transparency to healthcare. We provide price transparency to patients, recover underpayments by insurance companies, and automate benefits workflows. Our products are already used by healthcare organizations that together serve hundreds of thousands of patient visits annually.

Agency • Social Media
Seattle, Washington, USA
45 Employees

Mindful Conversion was founded on the belief that the most successful companies meticulously obsess over every customer touch point. From their customer’s first ad impression to their customer’s final conversion, they’re mindful of every experience in the customer flow. innovative Amazon repricer is a tool that automatically is not just about how virtual assistants

Agency • Professional Services • Consulting
Seattle, Washington, USA
4 Employees

Exo Agency is a digital marketing agency that specializes in web design, mobile development, SEO, and pay-per-click management. Our goal is to allow businesses from all over to reach the potential they crave. We’ll do so by helping with modern marketing strategies that are demonstrably proven to assist in scaling businesses in size, revenue, and reach. With over 200 clients and heaps of experience, we’re aware of what it takes to take any business to the next level. We know that each company is unique and will try to achieve different goals. We’ll help put together a road map and recommend services that will get you to where you want to be. We can offer custom-tailored plans that are unique to your situation and style. We won’t ask for too much in terms of money, and we will eliminate any wasteful spending on advertising. Your entire business or project can be transformed in a matter of weeks if you work together with us – this is a promise. Getting in touch with us couldn’t be simpler as we’re available through our site or through various social media channels. Once we’ve spoken, we’ll be able to chat about our next moves. Perhaps local search strategy is something you’d like to significantly improve on – or maybe link building and creating the perfect content for your business is something of a weakness for you. Whichever problem area you wish to solve, we’ll be able to guide you.

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Artificial Intelligence • Gaming • Machine Learning • Software • Virtual Reality • Design • Metaverse
4 Offices
5,500 Employees

Unity is the world’s leading platform for creating and operating real-time 3D (RT3D) content. Creators, ranging from game developers to artists, architects, automotive designers, filmmakers, and others, use Unity to make their imaginations come to life.

Software
3 Offices
450 Employees

Our leading ChurchStaq, ParishStaq, and Resi Media suites simplify engagement, giving, administration, and video streaming—enabling our more than 14,000 customers to increase generosity, drive participation, and build stronger relationships with their communities.

Software
2 Offices
130 Employees

The world is exploding with data. As cyber threats grow daily, companies are trying to manage and secure all of their sensitive data while struggling to comply with increasing regulations. Employees waste precious time by trying to manage compliance with tools like Excel and email, which don’t scale in this complex space, leading to enormous risks, regulatory fines, lowered stock price, and compromised reputation. Not only must they figure out which standards matter, but they must also determine if and how they can to meet these standards with confidence. Companies need a better way to keep their promises and safeguard your sensitive data. Enter Hyperproof, a radical new approach to ensure organizations can effectively discover, track, and meet the web of compliance business and government requirements. We are disrupting the governance, risk, and compliance software space with our innovative products. At the core, we are a team with strong experience building cloud software and a passion for a great user experience, simplicity, and positive social impact. It’s an exciting time to be at Hyperproof. It’s an exciting time to be at Hyperproof — we recently raised $40 million in our Series B financing, further cementing Hyperproof as the emerging leader in the risk and compliance management space. At Hyperproof’s core are our passionate team members who focus on user experience, beautiful design, and evangelize a positive social impact of our cloud based platform. We help organizations streamline their risk and compliance workflows so our customers can spend more time strategically managing programs and less time wrangling spreadsheets. We are disrupting the governance, risk, and compliance software space with our innovative platform by helping traditionally unsung heroes (compliance professionals) do the right things so the wrong things don’t happen.

Artificial Intelligence • Cloud • Machine Learning • Productivity
Bellevue, Washington, USA

Apply the power of machine learning into your business process without data scientists. We believe that the power of AI and machine learning should be accessible to anyone.

AdTech • eCommerce • Mobile • Retail • Software
Seattle, Washington, USA
122 Employees

Swiftly is a leading provider of technology and solutions for retailers worldwide. Founded in 2018, Swiftly offers innovative solutions that drive engagement and enable retailers to own the digital relationship with their customer. Swiftly’s Retail Tools, Mobile Platform, Analytics and Insights, and Retail Media Network are integrated into a unified platform, which enables retailers to accelerate sales and build loyalty while empowering brands to reach more shoppers and amplify campaigns reaching more customers by using their own 1st party data. Trusted by hundreds of iconic brands, Swiftly is democratizing the retail industry and giving retailers the technology they need to compete in today’s crowded marketplace.

Fintech • Cryptocurrency • Web3
Bellevue, Washington, USA
185 Employees

Bittrex was founded in 2014 by three cybersecurity engineers. Our mission is to help advance the blockchain industry by fostering innovation, incubating new and emerging technology and driving transformative change.

Cloud • Information Technology • Professional Services • Analytics • Consulting
Bellevue, Washington, USA
120 Employees

AIM Consulting, is a rapidly growing leader in technology consulting services and solutions delivery that helps companies compete effectively in the digital world. AIM’s differentiation is its ability to build long term relationships with the best technology consulting talent in the region and to deliver end-to-end on business-critical initiatives with modern technologies and processes. Founded in 2006, AIM Consulting provides strategic guidance and scalable project teams in the areas of Application Development, Data & Analytics, Delivery Leadership, Digital Experience & Mobile, and Infrastructure, Cloud and Enterprise Service Management. Headquartered in Seattle with offices in Chicago, Denver, Houston and Minneapolis and the capability to deliver solutions across the US, AIM Consulting has been repeatedly recognized as one of the nation’s fastest-growing private companies and best places to work.

eCommerce • Information Technology • Marketing Tech • Software
Seattle, Washington, USA
152 Employees

Ideoclick is the provider of the industry's leading e-Commerce Optimization Platform. Founded by former Amazon executives, we deliver a unique combination of comprehensive cloud-based software, expertise, and insight to help businesses that sell on Amazon achieve transformative results.

Cloud • eCommerce • Logistics • Software
2 Offices
69 Employees

Modern companies turn to Shipium when they want to increase revenue and decrease costs by adding new technology. Retailers, brands, 3PLs, and marketplaces use our enterprise shipping platform to power their operations across North America.

Software
Bellevue, Washington, USA
68 Employees

QorusDocs is a Seattle, WA based AI-powered proposal management software provider that automates the creation of critical sales responses that stand out and win deals. The company supports enterprise proposal and sales teams from companies like Manpower Group, Teladoc Health, CDW, Panasonic, DLA Piper, Vodafone, Insight and more. Revenue teams can produce more proposals faster, speeding deal velocity, increasing win rates and reducing cost of sales. https://www.qorusdocs.com/pressroom/qorus-joins-with-highspot-to-enable-personalized-and-efficient-proposal-responses

Digital Media • Gaming • Mobile • Software • Esports
16 Offices
13,000 Employees

Everything we do is designed to inspire the world to play. Through our cutting-edge games, innovative services, and powerful technologies, we bring worlds with infinite possibilities to millions of players and fans around the globe. We’re looking for collaborative and inclusive people with diverse perspectives who will enrich our culture and challenge us. We take a holistic approach with our benefits program, focusing on physical, emotional, financial, career, and community wellness to support our people through every chapter of life. We provide comprehensive benefit packages and support for a balanced life with paid time off and new parent leave, plus free games and so much more. Our goal is to provide a safe and respectful workplace that empowers you to thrive in both work and life.

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