Top C# Companies (1,285)

Fiserv, Inc. (NYSE: FI) is a leading global provider of payments and financial services technology solutions, driving innovation in payments, processing services, risk and compliance, customer and channel management, and business insights and optimization. For more information, visit www.fiserv.com.

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. Our founders believed mission-based organizations deserved great software. That vision has fueled our work and our people every day as we create industry-leading software that helps organizations connect,...

Patch My PC simplifies third-party application patching for IT and security teams—trusted on over 26 million devices worldwide. Our solution automates the tedious, reduces risk, and saves time by integrating seamlessly with tools like Microsoft Intune and ConfigMgr. But we’re more than just software. We’re a people-first, values-driven team known for ridiculously responsive support, strong customer relationships, and a sense...

Swimlane is an automated security operations platform that enables organizations to automate their response to cyber security threats. Swimlane is used by the Fortune 500, US Federal Government and MSSPs, helping them tackle ever increasing number cyber security attacks, alert fatigue and the vast shortages of qualified security professionals. Automation of cybersecurity has shifted from “nice to have” to a...

At Akamai, we make life better for billions of people, billions of times a day. Every moment, billions of people, all over the world, are using the internet to shop, play games, look after finances, learn remotely, share videos, connect across the world, and so much more. These life-shaping digital experiences wouldn’t be possible without Akamai. We power and protect life...

At Foley, we’re reimagining how safety-sensitive industries hire, stay compliant, and manage risk. We’ve evolved into a modern SaaS company with an all-in-one, AI-ready platform that helps transportation, construction, distribution, and utility businesses operate faster, smarter, and safer. Working alongside the transportation, construction, manufacturing, and other safety-sensitive industries, Foley is a trusted platform to help hire better drivers, faster and...

Black Airplane is an Atlanta-based custom software development and digital product agency. Our 30+ full-time, 100% USA-based team combines product strategy, world-class UI/UX design, software engineering, and practical AI in one accountable group - no contractors. We build and modernize complex web platforms, cross-platform mobile apps, AI-powered products, workflow automation, and internal business systems. We also rescue stalled software projects by...

Conga crushes complexity within an increasingly complex world. With our revenue lifecycle management solution, we transform your unique complexities for order configuration, execution, fulfillment, and contract renewal processes with a single critical insights data model that adapts to ever-changing business requirements and aligns the understanding and efforts of every team. Our approach is grounded in the Conga Way, a framework...

Nearly half of patients needing medical equipment at discharge don’t get it in time. The ordering process is too convoluted and is still primarily handled by fax. These inefficiencies lead to higher cost of care and poorer patient outcomes. In the most extreme cases, this equipment means life or death. At Parachute Health, it is our mission to make sure...

Cart.com is the leading provider of unified commerce and logistics solutions that enable B2C and B2B companies to sell and fulfill anywhere their customers are. The company’s enterprise-grade software, services and logistics infrastructure, including its own network of omnichannel fulfillment and distribution centers, are used by some of the world’s most beloved brands and most complex organizations to unify commerce...

The Trusted Leader in Tax Technology. We're Vertex (VERX). A pioneer in tax automation for more than 45 years. We proudly serve over 4,000 customers worldwide with distinction and provide comprehensive tax solutions that enable global businesses to transact, comply, and grow with confidence. Our collaborative, friendly culture is the foundation of everything we do and who we are. We're proud...

Post-production teams waste too much on non-creative work. Suite equips post-production teams with blazing-fast cloud storage that scales to meet the demands of any project. Now, teams can focus on creating and forget about everything else. We're a small experienced team with a mission to solve the biggest problems facing the media and entertainment industry. We’re not building another SaaS...

DNSFilter is redefining how organizations secure their largest threat vector: the Internet itself. DNSFilter is making the Internet safer and workplaces more productive by blocking threats at the DNS layer. DNSFilter resolves upwards of 130 billion daily queries. With 79% of attacks using Domain Name System (DNS), DNSFilter provides the world’s fastest protective DNS powered by AI, blocking threats an...

At Curriculum Associates, we believe in the potential of every child and are changing the face of education technology with award-winning learning programs like i-Ready that serve a third of the nation’s K–8 students. For more than 50 years, our commitment to making classrooms better places, serving educators, and supporting equitable learning experiences for all students has driven the continuous...

Not every candidate is a top performer—and neither is every hiring assessment provider. Wonderlic’s mission is to help HR professionals identify top applicants and predict on-the-job performance by providing them with the most trusted, scientifically validated assessments on the market. Since the company was founded in 1937, more than 200 million Wonderlic assessments have been administered to job candidates. Our...

Stackline is a retail technology company that builds commerce tools for thousands of the largest consumer brands, retailers, and professional service firms. Our mission is to fuel the future of commerce by bringing brands and customers closer together.

Join one of the most popular children’s entertainment properties in the world! The Pokémon Company International, a subsidiary of The Pokémon Company in Japan, manages the property outside of Asia and is responsible for brand management, licensing, marketing, the Pokémon Trading Card Game, the animated TV series, home entertainment, and website. WE ARE POKÉMON!

Western Union is here for what's next. Each day, our diverse global teams invent and build new ways to send, save, and spend money. Wherever our customers are in the world, whatever currency they prefer, we're evolving to meet the demands of tomorrow. When we help make financial services more accessible to people everywhere, we transform lives and communities, positioning...

Our Mission We are on a mission to enable and inspire creators of the virtual frontier. Today, that’s movies and video game creators – but tomorrow, we believe the internet as a whole will be 3D. We are building a community of world builders based on enthusiasm, inclusion and a shared calling to build the next wave of the internet better...

Workstand provides commerce software, marketing services, and data solutions to help independent bicycle retailers and suppliers achieve profitable growth. Workstand isn’t your typical software company or your typical bike industry company. We are a privately owned small business serving an important niche, striving for mutual success and sustainability for every retailer and supplier in the cycling industry. Workstand has been voted...