Top C# Companies (1,290)

Optiver’s story began over 30 years ago, when we started business as a single trader on the floor of Amsterdam’s options exchange. Today, we are at the forefront of trading and technology as a leading global electronic market maker, focused on pricing, execution and risk management.

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Devbridge is a technology partner for forward-thinking Global 2000 companies looking to activate digital transformation. Our team builds extraordinary custom software that delivers measurable results for our clients and their customers. We've helped hospitals maximize staff utilization, logistics companies increase lane throughput, and enabled banks with automated loan decisioning tools. In 2021, we stepped up to the next level by...

WHAT WE DO At Xplor, we build easy-to-use technology for the businesses that make up everyday life – whether booking a gym session, dropping the kids at daycare, registering for a community center class, fixing your furnace, or playing 18 holes on Saturday.  That’s what people expect in the experience age – and why more than 130,000 businesses across 72+ countries use...

Invenergy is a leading global privately-held developer and operator of sustainable energy solutions. We are headquartered in the Chicago and have 2000+ employees across the Americas, Europe and Asia. We have successfully developed over 175 projects, including wind, solar, and natural gas power generation as well as advanced energy storage facilities. We are innovators at heart — we design, build and...

BlackEdge Capital is a proprietary trading firm based in Chicago. In 2009, the founding partners of BlackEdge left a highly-respected market-making firm to build a new entity based off of their ideas on how market-making should be done. Thus far, BlackEdge has experienced rapid growth and is focused on becoming a leading global liquidity provider. The firm specializes in making...

For over a decade, Jobba Trade Technologies has developed a growing set of enterprise applications for the construction industry – to streamline outdated processes, enhance project transparency and improve communication with customers and staff. We're a mixed bag of Technologists, Customer Success Managers, Team Leaders, SaaS Sales & more..

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...

Sagent powers banks and lenders to make loans and homeownership simpler and safer for millions of homeowners. We bring the modern experience customers now expect from loan originations to loan servicing, where lifetime customer relationships are managed and grown. Sagent platforms let consumers manage their home-owning lives from anywhere.

Keeper Security is the world's leading cybersecurity software company for securing and managing passwords and digital assets online. We were founded in 2011 and protect millions of consumers and thousands of business clients globally with our best-in-class encryption technology.

Mixpanel is an event analytics platform that allows anyone to get answers from their customer and revenue data in seconds. It offers powerful real-time charts and visualizations of how people interact with your digital products and company. With insights into behaviors like conversion and retention, teams can collaborate more effectively and make informed decisions. Regardless of technical expertise, builders can...

Writer is the full-stack generative AI platform delivering transformative ROI for the world’s leading enterprises. Its fully integrated solution makes it easy to deploy secure and reliable AI applications and agents that automate mission-critical work. Writer’s suite of development tools is supported by Palmyra – Writer’s state-of-the-art family of LLMs – alongside its industry-leading graph-based RAG and customizable AI guardrails....

Code and Theory is a strategically driven, digital-first creative agency that lives at the intersection of creativity and technology. We solve consumer and business problems across the entire customer journey that flex to meet the ever-changing needs of consumer expectations. We put the user, their behaviors and needs, at the center of everything we do — from our proprietary research...

At Truckstop, our One-Team mindset has transformed big dreams into epic success. We commit to principles such as assume positive intent, have each other’s back, and be your authentic self. This results in a feeling of connectedness, so no one feels isolated in a remote work world. Together, we build technology that determines the future of freight. Partners make the...

Duck Creek Technologies is a leading provider of core system solutions and professional services to the P&C and General Insurance industry. All of our functionally rich solutions are available via Duck Creek On Demand, our enterprise SaaS solution.

As a member-owned, not-for-profit financial cooperative, we are guided by the credit union philosophy of “people helping people.” Putting people over profit guides our everyday business decisions. Unlike many financial institutions, we aren’t privately owned. As a cooperative, we are owned by our members. This drives us to do right by the member, and right by each other as coworkers....

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...

ThinkMarkets is a premium multi-asset online brokerage. We offer quick and easy access to a wide range of markets including Forex, CFDs on equities, Cryptocurrencies, Commodities, Indices and more. We bring together people from different backgrounds with impressive skillsets, and together they make us even more than the sum of our parts.

Are you ready to make a change? Are you ready to take healthcare to the next level? Then its time to join the nations leading medical practice association - MGMA. We are looking for the brightest and the best. The innovators and the collaborators; the creators and the operators. These are the warriors that are going to lead medical group practices...

Echo is a leading provider of technology-enabled business process outsourcing, serving the transportation and logistics needs of our clients. Our proprietary web-based technology, dedicated service teams and robust procurement power enables our clients to see significant transportation savings while receiving best-in-class service.